$CUBI
Customers Bancorp, Inc. Stock $cubi

$cubi Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000148881322000018 Filed on February 28, 2022

Income Statement

Concept	2021 Q4	2021 Q3	2021
Revenue	$214.0M	$242.9M	$780.9M
YoY Change	39.81%	73.9%	43.73%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development		$21.28M	$83.54M
YoY Change		63.64%	64.89%
% of Gross Profit
Depreciation & Amortization	$5.500M	$5.500M	$22.00M
YoY Change	10.0%	-787.5%	15.79%
% of Gross Profit
Operating Expenses		$21.28M	$83.54M
YoY Change		63.64%	64.89%
Operating Profit
YoY Change
Interest Expense	$20.34M	$22.96M	$95.81M
YoY Change	-32.52%	-28.72%	-31.38%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$115.2M	$152.3M	$441.2M
YoY Change	40.53%	141.51%	132.51%
Income Tax	$12.99M	$36.26M	$86.94M
% Of Pretax Income	11.27%	23.81%	19.7%
Net Earnings	$100.7M	$116.0M	$314.6M
YoY Change	78.98%	129.72%	137.33%
Net Earnings / Revenue	47.03%	47.78%	40.29%
Basic Earnings Per Share	$3.02	$3.40	$9.29
Diluted Earnings Per Share	$2.87	$3.25	$8.91
COMMON SHARES
Basic Shares Outstanding	32.41M shares	32.45M shares	32.31M shares
Diluted Shares Outstanding		33.87M shares	33.70M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$518.0M	$1.052B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$8.890M	$9.944M	$22.00M
YoY Change	-20.8%	-15.33%	-24.14%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$0.00	$0.00	$0.00
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$19.58B	$19.11B	$19.58B
YoY Change	6.16%	1.76%	6.16%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$210.0M	$433.0M	$210.0M
YoY Change	183.78%	95.05%	183.78%
Accrued Expenses	$15.00M	$16.00M	$15.00M
YoY Change	-21.05%	-20.0%	-21.05%
Deferred Revenue
YoY Change
Short-Term Debt	$775.0M	$0.00	$75.00M
YoY Change	-29.55%	-100.0%	-70.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$225.0M	$449.0M	$225.0M
YoY Change	141.94%	85.54%	141.94%
LONG-TERM LIABILITIES
Long-Term Debt	$405.0M	$405.0M	$405.0M
YoY Change	-91.42%	-92.08%	-91.42%
Other Long-Term Liabilities	$27.00M	$0.00	$27.00M
YoY Change	-72.45%		-72.45%
Total Long-Term Liabilities	$432.0M	$405.0M	$432.0M
YoY Change	-91.03%	-92.08%	-91.03%
TOTAL LIABILITIES
Total Short-Term Liabilities	$225.0M	$449.0M	$225.0M
Total Long-Term Liabilities	$432.0M	$405.0M	$432.0M
Total Liabilities	$18.21B	$17.82B	$18.21B
YoY Change	5.12%	0.55%	5.12%
SHAREHOLDERS EQUITY
Retained Earnings	$705.7M	$607.1M
YoY Change	60.91%	57.38%
Common Stock	$34.72M	$33.82M
YoY Change	5.26%	2.99%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$49.44M	$21.78M
YoY Change	127.01%	0.0%
Treasury Stock Shares	1.808M shares	1.281M shares
Shareholders Equity	$1.366B	$1.284B	$1.366B
YoY Change
Total Liabilities & Shareholders Equity	$19.58B	$19.11B	$19.58B
YoY Change	6.16%	1.76%	6.16%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021
OPERATING ACTIVITIES
Net Income	$100.7M	$116.0M	$314.6M
YoY Change	78.98%	129.72%	137.33%
Depreciation, Depletion And Amortization	$5.500M	$5.500M	$22.00M
YoY Change	10.0%	-787.5%	15.79%
Cash From Operating Activities	$19.50M	-$14.80M	$271.0M
YoY Change	-67.28%	-143.66%	103.72%
INVESTING ACTIVITIES
Capital Expenditures	-$15.90M	-$8.200M	$613.0K
YoY Change	20.45%	28.13%	-86.87%
Acquisitions
YoY Change
Other Investing Activities	-$1.105B	$1.397B	-$1.168B
YoY Change	-263.73%	-181.98%	-81.74%
Cash From Investing Activities	-$1.120B	$1.389B	-$1.201B
YoY Change	-269.4%	-181.19%	-81.31%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			-$100.0K
YoY Change			-89.17%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	567.0M	-752.6M	755.0M
YoY Change	-257.85%	-179.98%	-88.85%
NET CHANGE
Cash From Operating Activities	19.50M	-14.80M	271.0M
Cash From Investing Activities	-1.120B	1.389B	-1.201B
Cash From Financing Activities	567.0M	-752.6M	755.0M
Net Change In Cash	-533.9M	621.5M	-$175.3M
YoY Change	-247.57%	-184.47%	-136.46%
FREE CASH FLOW
Cash From Operating Activities	$19.50M	-$14.80M	$271.0M
Capital Expenditures	-$15.90M	-$8.200M	$613.0K
Free Cash Flow	$35.40M	-$6.600M	$270.4M
YoY Change	-51.37%	-116.38%	110.65%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2021	dei	Entity File Number EntityFileNumber	001-35542
CY2021	dei	Entity Registrant Name EntityRegistrantName	Customers Bancorp, Inc.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
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CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	21107000	USD
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	18139000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	12051000	USD
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	8416000	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	7009000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	7272000	USD
CY2021	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	12874000	USD
CY2020	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	11535000	USD
CY2019	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	7128000	USD
CY2021	cubi	Gain On Sale Of Mortgages And Other Loans GainOnSaleOfMortgagesAndOtherLoans	11327000	USD
CY2020	cubi	Gain On Sale Of Mortgages And Other Loans GainOnSaleOfMortgagesAndOtherLoans	2009000	USD
CY2019	cubi	Gain On Sale Of Mortgages And Other Loans GainOnSaleOfMortgagesAndOtherLoans	2770000	USD
CY2021	cubi	Income From Loan Fees IncomeFromLoanFees	7527000	USD
CY2020	cubi	Income From Loan Fees IncomeFromLoanFees	5652000	USD
CY2019	cubi	Income From Loan Fees IncomeFromLoanFees	5021000	USD
CY2021	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	1536000	USD
CY2020	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	1693000	USD
CY2019	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	66000	USD
CY2021	cubi	Loss Upon Acquisitionof Interest Only Gnma Securities LossUponAcquisitionofInterestOnlyGNMASecurities	0	USD
CY2020	cubi	Loss Upon Acquisitionof Interest Only Gnma Securities LossUponAcquisitionofInterestOnlyGNMASecurities	0	USD
CY2019	cubi	Loss Upon Acquisitionof Interest Only Gnma Securities LossUponAcquisitionofInterestOnlyGNMASecurities	7476000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	31392000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	20078000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	1001000	USD
CY2021	us-gaap	Debt Securities Unrealized Gain Loss DebtSecuritiesUnrealizedGainLoss	2720000	USD
CY2020	us-gaap	Debt Securities Unrealized Gain Loss DebtSecuritiesUnrealizedGainLoss	1447000	USD
CY2019	us-gaap	Debt Securities Unrealized Gain Loss DebtSecuritiesUnrealizedGainLoss	1299000	USD
CY2021	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-2840000	USD
CY2020	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
CY2021	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	3208000	USD
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-3951000	USD
CY2019	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	3162000	USD
CY2021	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	-24467000	USD
CY2020	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
CY2019	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	957000	USD
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	-2965000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	467000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	77867000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	63818000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	35284000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	108202000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	94067000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	80122000	USD
CY2021	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	83544000	USD
CY2020	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	50668000	USD
CY2019	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	45063000	USD
CY2021	us-gaap	Professional Fees ProfessionalFees	26688000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	13557000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	10634000	USD
CY2021	us-gaap	Occupancy Net OccupancyNet	12143000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	11362000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	11307000	USD
CY2021	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	17824000	USD
CY2020	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	14715000	USD
CY2019	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	9473000	USD
CY2021	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	10061000	USD
CY2020	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	11661000	USD
CY2019	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	5807000	USD
CY2021	us-gaap	Loan Processing Fee LoanProcessingFee	10763000	USD
CY2020	us-gaap	Loan Processing Fee LoanProcessingFee	3431000	USD
CY2019	us-gaap	Loan Processing Fee LoanProcessingFee	1245000	USD
CY2021	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1520000	USD
CY2020	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1796000	USD
CY2019	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	2690000	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	418000	USD
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1367000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2021	cubi	Loan Workout LoanWorkout	265000	USD
CY2020	cubi	Loan Workout LoanWorkout	3143000	USD
CY2019	cubi	Loan Workout LoanWorkout	1687000	USD
CY2021	cubi	Deposit Relationship Modification Fees DepositRelationshipModificationFees	6216000	USD
CY2020	cubi	Deposit Relationship Modification Fees DepositRelationshipModificationFees	0	USD
CY2019	cubi	Deposit Relationship Modification Fees DepositRelationshipModificationFees	0	USD
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	16663000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	9209000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	12560000	USD
CY2021	us-gaap	Noninterest Expense NoninterestExpense	294307000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	214976000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	180588000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	441208000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	189756000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	107779000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	86940000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46717000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26392000	USD
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	354268000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	143039000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	81387000	USD
CY2021	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-20354000	USD
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-13798000	USD
CY2019	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-5659000	USD
CY2021	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	19267000	USD
CY2020	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-3337000	USD
CY2019	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-3599000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-39621000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-10461000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2060000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	314647000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	132578000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	79327000	USD
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	11693000	USD
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14041000	USD
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14459000	USD
CY2021	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	2820000	USD
CY2020	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2019	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	300134000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	118537000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	64868000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	10.51
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	4.09
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.15
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.29
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.76
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.08
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	10.08
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	4.07
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.12
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.91
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.74
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.05
CY2021	us-gaap	Net Income Loss NetIncomeLoss	314647000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	132578000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	79327000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-6841000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	32273000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	49688000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1779000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	8390000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	12919000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	31392000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	20078000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1001000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	8162000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	5220000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	260000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-28292000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	9025000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	36028000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	12321000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-31772000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-21157000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	3204000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-8545000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-5501000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-26972000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-13092000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1407000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-7013000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-3404000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-366000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	29076000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-13539000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-14615000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	784000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4514000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	21413000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	315431000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	128064000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	100740000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	956816000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	79327000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	21413000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14459000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8898000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1371000	USD
CY2019	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	571000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1052795000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	132578000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4514000	USD
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14041000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12049000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-306000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1117086000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	314647000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	784000	USD
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	11693000	USD
CY2021	cubi	Write Off Of Stock Issuance Costs Preferred Stock WriteOffOfStockIssuanceCostsPreferredStock	2820000	USD
CY2021	cubi	Adjustments To Additional Paid In Capital Increase From Sale Of Noncontrolling Interest AdjustmentsToAdditionalPaidInCapitalIncreaseFromSaleOfNoncontrollingInterest	31893000	USD
CY2021	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	32983000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	19592000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13860000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	23190000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1366217000	USD
CY2021	cubi	Special Dividends Shares SpecialDividendsShares	0.15389	shares
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	354268000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	143039000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	81387000	USD
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	27426000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	62774000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	24227000	USD
CY2021	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	21667000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	18514000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	13608000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	13860000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	12883000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	9851000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17754000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-15852000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9640000	USD
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1884000	USD
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	443000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1016000	USD
CY2021	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	2720000	USD
CY2020	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	1447000	USD
CY2019	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	1299000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	31392000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	20078000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	1001000	USD
CY2021	cubi	Gain Loss On Sale Of Subsidiary GainLossOnSaleOfSubsidiary	-2840000	USD
CY2020	cubi	Gain Loss On Sale Of Subsidiary GainLossOnSaleOfSubsidiary	0	USD
CY2019	cubi	Gain Loss On Sale Of Subsidiary GainLossOnSaleOfSubsidiary	0	USD
CY2021	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	3208000	USD
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-3951000	USD
CY2019	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	3162000	USD
CY2021	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	-24467000	USD
CY2020	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
CY2019	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
CY2021	cubi	Payment For Settlement Of Terminated Cash Flow Hedges PaymentForSettlementOfTerminatedCashFlowHedges	27156000	USD
CY2020	cubi	Payment For Settlement Of Terminated Cash Flow Hedges PaymentForSettlementOfTerminatedCashFlowHedges	0	USD
CY2019	cubi	Payment For Settlement Of Terminated Cash Flow Hedges PaymentForSettlementOfTerminatedCashFlowHedges	0	USD
CY2021	cubi	Loss Upon Acquisitionof Interest Only Gnma Securities LossUponAcquisitionofInterestOnlyGNMASecurities	0	USD
CY2020	cubi	Loss Upon Acquisitionof Interest Only Gnma Securities LossUponAcquisitionofInterestOnlyGNMASecurities	0	USD
CY2019	cubi	Loss Upon Acquisitionof Interest Only Gnma Securities LossUponAcquisitionofInterestOnlyGNMASecurities	7476000	USD
CY2021	cubi	Gain Loss On Fair Value Adjustment On Loans Held For Sale GainLossOnFairValueAdjustmentOnLoansHeldForSale	1115000	USD
CY2020	cubi	Gain Loss On Fair Value Adjustment On Loans Held For Sale GainLossOnFairValueAdjustmentOnLoansHeldForSale	-2565000	USD
CY2019	cubi	Gain Loss On Fair Value Adjustment On Loans Held For Sale GainLossOnFairValueAdjustmentOnLoansHeldForSale	0	USD
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	12855000	USD
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	3558000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2804000	USD
CY2021	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	73952000	USD
CY2020	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	74828000	USD
CY2019	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	48044000	USD
CY2021	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	65241000	USD
CY2020	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	72999000	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	47455000	USD
CY2021	cubi	Accretionof Fair Value Discounts Net AccretionofFairValueDiscountsNet	-222693000	USD
CY2020	cubi	Accretionof Fair Value Discounts Net AccretionofFairValueDiscountsNet	-2381000	USD
CY2019	cubi	Accretionof Fair Value Discounts Net AccretionofFairValueDiscountsNet	893000	USD
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	8416000	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	7009000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	7272000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-46655000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	108147000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	63104000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	102985000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	50436000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-27578000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	295540000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	133418000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	41289000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	317046000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	236101000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	38709000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	3765000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	0	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	689856000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	387810000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	97555000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3626377000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1201913000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2021	cubi	Originationofmortgagewarehouseloans Originationofmortgagewarehouseloans	55034537000	USD
CY2020	cubi	Originationofmortgagewarehouseloans Originationofmortgagewarehouseloans	60948107000	USD
CY2019	cubi	Originationofmortgagewarehouseloans Originationofmortgagewarehouseloans	31782542000	USD
CY2021	cubi	Proceedsfromrepaymentsofmortgagewarehouseloans Proceedsfromrepaymentsofmortgagewarehouseloans	56365692000	USD
CY2020	cubi	Proceedsfromrepaymentsofmortgagewarehouseloans Proceedsfromrepaymentsofmortgagewarehouseloans	59582277000	USD
CY2019	cubi	Proceedsfromrepaymentsofmortgagewarehouseloans Proceedsfromrepaymentsofmortgagewarehouseloans	30900905000	USD
CY2021	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-1652994000	USD
CY2020	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	4220617000	USD
CY2019	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-239018000	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	398015000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	26362000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	273388000	USD
CY2021	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	1907222000	USD
CY2020	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	270959000	USD
CY2019	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	1167417000	USD
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	46462000	USD
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2019	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1999000	USD
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2021	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	6784000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	12846000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	5471000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	613000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4668000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1519000	USD
CY2021	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	45000	USD
CY2020	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	97000	USD
CY2019	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	735000	USD
CY2021	us-gaap	Proceeds From Sale Of Lease Receivables ProceedsFromSaleOfLeaseReceivables	10092000	USD
CY2020	us-gaap	Proceeds From Sale Of Lease Receivables ProceedsFromSaleOfLeaseReceivables	0	USD
CY2019	us-gaap	Proceeds From Sale Of Lease Receivables ProceedsFromSaleOfLeaseReceivables	0	USD
CY2021	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	32338000	USD
CY2020	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	24124000	USD
CY2019	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	48552000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-1201261000	USD
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-150000000	USD
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	0	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-748070000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-6424895000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-1444249000	USD
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	5467995000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2660993000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1506700000	USD
CY2021	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	175000000	USD
CY2020	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	288000000	USD
CY2019	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	-351000000	USD
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	-4415016000	USD
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	4415016000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	USD
CY2021	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	350000000	USD
CY2021	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	72030000	USD
CY2021	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	98799000	USD
CY2020	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	24477000	USD
CY2021	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	0	USD
CY2020	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	0	USD
CY2019	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	25000000	USD
CY2021	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	82497000	USD
CY2020	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2019	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	10833000	USD
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14076000	USD
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14459000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	27662000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	571000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	5568000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2063000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1732000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	27762000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	923000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2150000	USD
CY2021	cubi	Proceeds From Sale Of Noncontrolling Interest ProceedsFromSaleOfNoncontrollingInterest	26795000	USD
CY2020	cubi	Proceeds From Sale Of Noncontrolling Interest ProceedsFromSaleOfNoncontrollingInterest	0	USD
CY2019	cubi	Proceeds From Sale Of Noncontrolling Interest ProceedsFromSaleOfNoncontrollingInterest	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	754775000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	6772793000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	1516525000	USD
CY2021	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-150946000	USD
CY2020	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	481316000	USD
CY2019	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	113565000	USD
CY2021	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-24376000	USD
CY2020	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	18605000	USD
CY2019	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	36991000	USD
CY2021	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
CY2020	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-72000	USD
CY2019	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-186000	USD
CY2021	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2020	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-19000000	USD
CY2019	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-24376000	USD
CY2020	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-467000	USD
CY2019	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	36805000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-175322000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	480849000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	150370000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	693354000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	212505000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	62135000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	518032000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	693354000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	212505000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	107916000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	107916000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	131363000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	182596000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	94093000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	94093000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3253000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7410000	USD
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	USD
CY2019	cubi	Transfer Of Multi Family Loans Held For Sale To Held For Investment TransferOfMultiFamilyLoansHeldForSaleToHeldForInvestment	0	USD
CY2021	cubi	Unsettled Purchases Of Investment Securities UnsettledPurchasesOfInvestmentSecurities	0	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	31000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	291000	USD
CY2021	us-gaap	Stock Issued1 StockIssued1	32983000	USD
CY2020	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2019	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2021	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2021	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2020	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	74050000	USD
CY2020	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	74050000	USD
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	499774000	USD
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	499774000	USD
CY2021	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	55684000	USD
CY2020	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	0	USD
CY2019	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	0	USD
CY2021	cubi	Transfer Of Multi Family Loans Held For Sale To Held For Investment TransferOfMultiFamilyLoansHeldForSaleToHeldForInvestment	0	USD
CY2020	cubi	Transfer Of Multi Family Loans Held For Sale To Held For Investment TransferOfMultiFamilyLoansHeldForSaleToHeldForInvestment	401144000	USD
CY2020	cubi	Unsettled Purchases Of Investment Securities UnsettledPurchasesOfInvestmentSecurities	2244000	USD
CY2019	cubi	Unsettled Purchases Of Investment Securities UnsettledPurchasesOfInvestmentSecurities	0	USD
CY2021	cubi	Acquisition Of Interest Only Gnma Securities Securing A Mortgage Warehouse Loan AcquisitionOfInterestOnlyGNMASecuritiesSecuringAMortgageWarehouseLoan	0	USD
CY2020	cubi	Acquisition Of Interest Only Gnma Securities Securing A Mortgage Warehouse Loan AcquisitionOfInterestOnlyGNMASecuritiesSecuringAMortgageWarehouseLoan	0	USD
CY2019	cubi	Acquisition Of Interest Only Gnma Securities Securing A Mortgage Warehouse Loan AcquisitionOfInterestOnlyGNMASecuritiesSecuringAMortgageWarehouseLoan	17157000	USD
CY2021	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2020	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2019	us-gaap	Loans Assumed1 LoansAssumed1	1325000	USD
CY2021Q4	cubi	Number Of Branches NumberOfBranches	12	branch
CY2021Q4	cubi	Averagereservebalancesrequiredtobemaintainedwithfederalreservebank Averagereservebalancesrequiredtobemaintainedwithfederalreservebank	0	USD
CY2020Q4	cubi	Averagereservebalancesrequiredtobemaintainedwithfederalreservebank Averagereservebalancesrequiredtobemaintainedwithfederalreservebank	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	11000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	4200000	USD
CY2021Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	3700000	USD
CY2021	cubi	Discontinued Period Of Principal Or Interest Payment Of Contractual Payment DiscontinuedPeriodOfPrincipalOrInterestPaymentOfContractualPayment	P90D
CY2021	cubi	Financing Receivable Impairment Modification Minimum Period FinancingReceivableImpairmentModificationMinimumPeriod	P6M
CY2021	cubi	Maximum Loan To Value Ratio MaximumLoanToValueRatio	0.80
CY2021Q4	us-gaap	Financing Receivable Threshold Period Past Due Writeoff FinancingReceivableThresholdPeriodPastDueWriteoff	P120D
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	4000000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	64600000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	71400000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	35800000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	46100000	USD
CY2021	cubi	Income Taxes Examination Likelihood Of Realization On Settlement Percentage IncomeTaxesExaminationLikelihoodOfRealizationOnSettlementPercentage	0.50
CY2021	cubi	Income Taxes Examination Likelihood Of Realization On Settlement Percentage IncomeTaxesExaminationLikelihoodOfRealizationOnSettlementPercentage	0.50
CY2020	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-3337000	USD
CY2019	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-3599000	USD
CY2021	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	339755000	USD
CY2020	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	128998000	USD
CY2019	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	66928000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-39621000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-10461000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2060000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	300134000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	118537000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	64868000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32312262	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31506699	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31183841	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1385285	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	221085	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	462375	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33697547	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31727784	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31646216	shares
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	10.51
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	4.09
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.15
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-1.22
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.33
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.07
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.29
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.76
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.08
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	10.08
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	4.07
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.12
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-1.17
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.33
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.07
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.91
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.74
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.05
CY2020	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	501000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-155000	USD
CY2020	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	656000	USD
CY2020	us-gaap	Reclassification From Aoci Current Period Before Tax Attributable To Parent ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent	6986000	USD
CY2020	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	1816000	USD
CY2020	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	5170000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4514000	USD
CY2021	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	5480000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	1425000	USD
CY2021	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	4055000	USD
CY2021	us-gaap	Reclassification From Aoci Current Period Before Tax Attributable To Parent ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent	4420000	USD
CY2021	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	1149000	USD
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	3271000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	784000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	3799851000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	7427000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	15703000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3791575000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	25575000	USD
CY2021Q4	cubi	Investment Securitiesat Fair Value InvestmentSecuritiesatFairValue	3817150000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1174188000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	32890000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	647000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1206431000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3854000	USD
CY2020Q4	cubi	Investment Securitiesat Fair Value InvestmentSecuritiesatFairValue	1210285000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	11000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	4200000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	3800000	USD
CY2021	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-2800000	USD
CY2021	us-gaap	Debt Securities Unrealized Gain Loss DebtSecuritiesUnrealizedGainLoss	2700000	USD
CY2020	us-gaap	Debt Securities Unrealized Gain Loss DebtSecuritiesUnrealizedGainLoss	1400000	USD
CY2019	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	1300000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	689900000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	387800000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	97600000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	31400000	USD
CY2020Q4	cubi	Loans Receivable Heldforsale Net Not Partof Disposal Group Mortgage1 LoansReceivableHeldforsaleNetNotPartofDisposalGroupMortgage1	5509000	USD
CY2021Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumer	16254000	USD
CY2020Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumer	6152000	USD
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	16254000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	79086000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	20100000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1000000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	4962000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	5008000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	358429000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	358774000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	220417000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	224695000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	3799851000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3791575000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	2024753000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	15567000	USD
CY2021Q4	cubi	Debt Securities Availableforsale Continuous Unrealized Loss Position12 Monthsor Longer Fair Value DebtSecuritiesAvailableforsaleContinuousUnrealizedLossPosition12MonthsorLongerFairValue	6818000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	136000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	2031571000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	14414827000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	15703000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	135579000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	647000	USD
CY2020Q4	cubi	Debt Securities Availableforsale Continuous Unrealized Loss Position12 Monthsor Longer Fair Value DebtSecuritiesAvailableforsaleContinuousUnrealizedLossPosition12MonthsorLongerFairValue	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	135579000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	647000	USD
CY2021Q4	cubi	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions Less Than12 Months DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositionsLessThan12Months	115	position
CY2021Q4	cubi	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions12 Months Or More DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions12MonthsOrMore	2	position
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	117	position
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	117	position
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	16	position
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	11300000	USD
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	18800000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7575368000	USD
CY2021Q4	cubi	Commercial Industrial Loans Held For Sale CommercialIndustrialLoansHeldForSale	0	USD
CY2020Q4	cubi	Commercial Industrial Loans Held For Sale CommercialIndustrialLoansHeldForSale	55683000	USD
CY2021Q4	cubi	Commercial Mortgage Loans Held For Sale CommercialMortgageLoansHeldForSale	0	USD
CY2020Q4	cubi	Commercial Mortgage Loans Held For Sale CommercialMortgageLoansHeldForSale	17251000	USD
CY2021Q4	cubi	Loans Receivable Heldforsale Net Not Partof Disposal Group Commercial Real Estate1 LoansReceivableHeldforsaleNetNotPartofDisposalGroupCommercialRealEstate1	0	USD
CY2020Q4	cubi	Loans Receivable Heldforsale Net Not Partof Disposal Group Commercial Real Estate1 LoansReceivableHeldforsaleNetNotPartofDisposalGroupCommercialRealEstate1	72934000	USD
CY2021Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Home Equity Conversion LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerHomeEquityConversion	507000	USD
CY2020Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Home Equity Conversion LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerHomeEquityConversion	643000	USD
CY2021Q4	cubi	Loans Receivable Heldforsale Net Not Partof Disposal Group Mortgage1 LoansReceivableHeldforsaleNetNotPartofDisposalGroupMortgage1	15747000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144176000	USD
CY2021Q4	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	2284325000	USD
CY2020Q4	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	3616432000	USD
CY2021Q4	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	3250008000	USD
CY2020Q4	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	4561365000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	9018298000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	137804000	USD
CY2020Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-54600000	USD
CY2021Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	81600000	USD
CY2020Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	76600000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15608989000	USD
CY2021Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-52000000.0	USD
CY2021	cubi	Loans Held For Sale Average Life From Purchase To Sale LoansHeldForSaleAverageLifeFromPurchaseToSale	P30D
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	9018298000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7575368000	USD
CY2021Q4	us-gaap	Financing Receivable Threshold Period Past Due FinancingReceivableThresholdPeriodPastDue	P30D
CY2021Q4	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	9900000	USD
CY2020Q4	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	13400000	USD
CY2021Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	41508000	USD
CY2021Q4	cubi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	7605000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	49113000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	40862000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	136200000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	8000000	USD
CY2020Q4	cubi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	11177000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	52039000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144176000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	40381000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	6583000	USD
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	27426000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	137804000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	56379000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	61736000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	6930000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	62774000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144176000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	137800000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	-6400000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144200000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144200000	USD
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	16500000	USD
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	16100000	USD
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	13300000	USD
CY2021	cubi	Financing Receivable Impairment Minimum Performance Requirement Period FinancingReceivableImpairmentMinimumPerformanceRequirementPeriod	P6M
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	202	Loan
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	3497000	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	121	Loan
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	3677000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	28	Loan
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1437000	USD
CY2021Q4	cubi	Number Of Commitments To Lend Additional Funds For Troubled Debt Restructurings NumberOfCommitmentsToLendAdditionalFundsForTroubledDebtRestructurings	0	Commitment
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CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	24	Loan
CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	455000	USD
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	24	Loan
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	614000	USD
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	4	Loan
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	154000	USD
CY2021Q4	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	9900000	USD
CY2020Q4	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	13400000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	2885998000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1162342000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	983444000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	553607000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	732071000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1103651000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	1597185000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	0	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	9018298000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1515239000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1599431000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	786506000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	1055134000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	578390000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1130969000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	909699000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	0	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7575368000	USD
CY2021	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	1907222000	USD
CY2020	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	270179000	USD
CY2019	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	1164119000	USD
CY2021	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	398015000	USD
CY2020	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	26362000	USD
CY2019	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	268872000	USD
CY2021	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	1.008
CY2020	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	1.003
CY2019	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	1.003
CY2021	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	12900000	USD
CY2020	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	2000000	USD
CY2019	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	2800000	USD
CY2021Q4	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	3700000000	USD
CY2020Q4	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	8500000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P15Y
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	12677000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	16578000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	14524000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	18005000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	4545000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	5298000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	4725000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4654000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4298000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3268000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2124000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	995000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	429000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	15768000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1244000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	14524000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	4900000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	4800000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	4800000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y10M24D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y8M12D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0274
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0290
CY2021Q4	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	134855000	USD
CY2020Q4	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	104982000	USD
CY2021Q4	us-gaap	Direct Financing Lease Residual Value Of Leased Asset DirectFinancingLeaseResidualValueOfLeasedAsset	11397000	USD
CY2020Q4	us-gaap	Direct Financing Lease Residual Value Of Leased Asset DirectFinancingLeaseResidualValueOfLeasedAsset	12988000	USD
CY2021Q4	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	5665000	USD
CY2020Q4	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	1229000	USD
CY2021Q4	cubi	Direct Financing Lease Deferred Initial Direct Costs DirectFinancingLeaseDeferredInitialDirectCosts	448000	USD
CY2020Q4	cubi	Direct Financing Lease Deferred Initial Direct Costs DirectFinancingLeaseDeferredInitialDirectCosts	560000	USD
CY2021Q4	us-gaap	Direct Financing Lease Deferred Selling Profit DirectFinancingLeaseDeferredSellingProfit	5383000	USD
CY2020Q4	us-gaap	Direct Financing Lease Deferred Selling Profit DirectFinancingLeaseDeferredSellingProfit	11175000	USD
CY2021Q4	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	146982000	USD
CY2020Q4	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	108584000	USD
CY2021Q4	cubi	Operating Lease Investmentin Lease Gross OperatingLeaseInvestmentinLeaseGross	158135000	USD
CY2020Q4	cubi	Operating Lease Investmentin Lease Gross OperatingLeaseInvestmentinLeaseGross	131791000	USD
CY2021Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	40749000	USD
CY2020Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	28919000	USD
CY2021Q4	cubi	Operating Lease Deferred Initial Direct Costs OperatingLeaseDeferredInitialDirectCosts	872000	USD
CY2020Q4	cubi	Operating Lease Deferred Initial Direct Costs OperatingLeaseDeferredInitialDirectCosts	996000	USD
CY2021Q4	cubi	Operating Lease Net Investmentin Lease OperatingLeaseNetInvestmentinLease	118258000	USD
CY2020Q4	cubi	Operating Lease Net Investmentin Lease OperatingLeaseNetInvestmentinLease	103868000	USD
CY2021Q4	cubi	Net Investmentin Direct Financingand Operating Leases NetInvestmentinDirectFinancingandOperatingLeases	265240000	USD
CY2020Q4	cubi	Net Investmentin Direct Financingand Operating Leases NetInvestmentinDirectFinancingandOperatingLeases	212452000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	30795000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	33046000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	21905000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	21821000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	8890000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11225000	USD
CY2021	cubi	Depreciation Occupancyand Amortizationof Leasehold Improvement DepreciationOccupancyandAmortizationofLeaseholdImprovement	2300000	USD
CY2020	cubi	Depreciation Occupancyand Amortizationof Leasehold Improvement DepreciationOccupancyandAmortizationofLeaseholdImprovement	2200000	USD
CY2019	cubi	Depreciation Occupancyand Amortizationof Leasehold Improvement DepreciationOccupancyandAmortizationofLeaseholdImprovement	3000000	USD
CY2021Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	4459790000	USD
CY2020Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	2356998000	USD
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	6488406000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	2384691000	USD
CY2021Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	5322390000	USD
CY2020Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	5916309000	USD
CY2021Q4	us-gaap	Time Deposits TimeDeposits	507338000	USD
CY2020Q4	us-gaap	Time Deposits TimeDeposits	651931000	USD
CY2021Q4	us-gaap	Deposits Deposits	16777924000	USD
CY2020Q4	us-gaap	Deposits Deposits	11309929000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	380486000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	117372000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	5189000	USD
CY2013Q4	cubi	Stock Repurchase Program Percentage Of Shares Repurchase Of Outstanding Share StockRepurchaseProgramPercentageOfSharesRepurchaseOfOutstandingShare	0.05
CY2021Q4	us-gaap	Time Deposits TimeDeposits	507338000	USD
CY2021Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	259000000	USD
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	297700000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	1683000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	2417000	USD
CY2021Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	191000	USD
CY2021Q4	cubi	Brokered Demand Deposits BrokeredDemandDeposits	1700000000	USD
CY2020Q4	cubi	Brokered Demand Deposits BrokeredDemandDeposits	605600000	USD
CY2021Q4	cubi	Brokered Money Market Deposits BrokeredMoneyMarketDeposits	480500000	USD
CY2020Q4	cubi	Brokered Money Market Deposits BrokeredMoneyMarketDeposits	1100000000	USD
CY2021Q4	cubi	Certificates Of Deposit Brokered CertificatesOfDepositBrokered	0	USD
CY2020Q4	cubi	Certificates Of Deposit Brokered CertificatesOfDepositBrokered	47000000	USD
CY2021Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	2800000	USD
CY2020Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	6700000	USD
CY2020Q4	cubi	Federal Reserve Bank Maximum Amount Available FederalReserveBankMaximumAmountAvailable	223299000	USD
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	3594339000	USD
CY2021Q3	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P1Y
CY2020Q4	cubi	Federal Reserve Bank Payment Protection Program Liquidity Facility Advances Cares Act FederalReserveBankPaymentProtectionProgramLiquidityFacilityAdvancesCARESAct	4415016000	USD
CY2020Q4	cubi	Cares Act Federal Reserve Bank Interest Rate CARESActFederalReserveBankInterestRate	0.0035
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	0	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	4415016000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	2973635000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	2729516000	USD
CY2021Q4	cubi	Federal Reserve Bank Maximum Amount Available FederalReserveBankMaximumAmountAvailable	183052000	USD
CY2013Q4	cubi	Treasury Stock Repurchase Maximum Percentage Premium Over Current Book Value TreasuryStockRepurchaseMaximumPercentagePremiumOverCurrentBookValue	0.20
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	3363364000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	700000000	USD
CY2021Q4	cubi	Federal Home Loan Bank Advances Short Term Interest Rate FederalHomeLoanBankAdvancesShortTermInterestRate	0.0026
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	850000000	USD
CY2020Q4	cubi	Federal Home Loan Bank Advances Short Term Interest Rate FederalHomeLoanBankAdvancesShortTermInterestRate	0.0119
CY2021Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	75000000	USD
CY2021Q4	cubi	Federal Funds Purchased Interest Rate FederalFundsPurchasedInterestRate	0.0005
CY2020Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	250000000	USD
CY2020Q4	cubi	Federal Funds Purchased Interest Rate FederalFundsPurchasedInterestRate	0.0009
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	775000000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1100000000	USD
CY2021Q4	cubi	Federal Reserve Bank Payment Protection Program Liquidity Facility Advances Cares Act FederalReserveBankPaymentProtectionProgramLiquidityFacilityAdvancesCARESAct	0	USD
CY2021Q4	cubi	Cares Act Federal Reserve Bank Interest Rate CARESActFederalReserveBankInterestRate	0
CY2021Q3	cubi	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased Percent Of Outstanding Shares StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchasedPercentOfOutstandingShares	0.10
CY2019Q1	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	31159	shares
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.35
CY2021Q3	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	3235326	shares
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	527789	shares
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	27700000	USD
CY2021Q4	cubi	Preferred Stock Numberof Series Outstanding PreferredStockNumberofSeriesOutstanding	2	series
CY2021	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	2800000	USD
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	5700000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	9000000	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	137794000	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	217471000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2100000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1600000	USD
CY2021	cubi	Maximum Exercisable Period For Stock Options MaximumExercisablePeriodForStockOptions	P10Y
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	305334	shares
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12600000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11600000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8400000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	19600000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0109
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0169
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4178
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2992
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.24
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	5.56
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	26600000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2500000	USD
CY2021	cubi	Restricted Stock Units Percentage Grantedas Long Term Incentive Compensation RestrictedStockUnitsPercentageGrantedasLongTermIncentiveCompensation	0.40
CY2021	cubi	Restricted Stock Units Percentage Vesting Upon Meeting Certain Thresholds RestrictedStockUnitsPercentageVestingUponMeetingCertainThresholds	0.60
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	50971000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	30158000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10902000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	18215000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10825000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5850000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	69186000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	40983000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	16752000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	14957000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4882000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8263000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2797000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	852000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1377000	USD
CY2021	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	17754000	USD
CY2020	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	5734000	USD
CY2019	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	9640000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	86940000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46717000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26392000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	92654000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	39849000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	22634000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	16863000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0382
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9225000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0486
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5709000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0530
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	670000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0015
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	492000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0026
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	385000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.0036
CY2021	cubi	Effective Income Tax Rate Reconciliation Tax Exempt Income Life Insurance Amount EffectiveIncomeTaxRateReconciliationTaxExemptIncomeLifeInsuranceAmount	1927000	USD
CY2021	cubi	Effective Income Tax Rate Reconciliation Tax Exempt Income Life Insurance Percent EffectiveIncomeTaxRateReconciliationTaxExemptIncomeLifeInsurancePercent	0.0044
CY2020	cubi	Effective Income Tax Rate Reconciliation Tax Exempt Income Life Insurance Amount EffectiveIncomeTaxRateReconciliationTaxExemptIncomeLifeInsuranceAmount	1579000	USD
CY2020	cubi	Effective Income Tax Rate Reconciliation Tax Exempt Income Life Insurance Percent EffectiveIncomeTaxRateReconciliationTaxExemptIncomeLifeInsurancePercent	0.0083
CY2019	cubi	Effective Income Tax Rate Reconciliation Tax Exempt Income Life Insurance Amount EffectiveIncomeTaxRateReconciliationTaxExemptIncomeLifeInsuranceAmount	1677000	USD
CY2019	cubi	Effective Income Tax Rate Reconciliation Tax Exempt Income Life Insurance Percent EffectiveIncomeTaxRateReconciliationTaxExemptIncomeLifeInsurancePercent	0.0156
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	11284000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0292
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1062000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0061
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	446000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.0041
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-8237000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.0187
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	185000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.0010
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	132000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.0012
CY2021	cubi	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationAmount	3195000	USD
CY2021	cubi	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent	0.0072
CY2020	cubi	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationAmount	454000	USD
CY2020	cubi	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent	0.0024
CY2019	cubi	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationAmount	440000	USD
CY2019	cubi	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent	0.0041
CY2021	cubi	Effective Income Tax Rate Reconciliation Unrecorded Foreign Income Tax Rate Differential Amount EffectiveIncomeTaxRateReconciliationUnrecordedForeignIncomeTaxRateDifferentialAmount	0	USD
CY2021	cubi	Effective Income Tax Rate Reconciliation Unrecorded Foreign Income Tax Rate Differential Percent EffectiveIncomeTaxRateReconciliationUnrecordedForeignIncomeTaxRateDifferentialPercent	0
CY2020	cubi	Effective Income Tax Rate Reconciliation Unrecorded Foreign Income Tax Rate Differential Amount EffectiveIncomeTaxRateReconciliationUnrecordedForeignIncomeTaxRateDifferentialAmount	-304000	USD
CY2020	cubi	Effective Income Tax Rate Reconciliation Unrecorded Foreign Income Tax Rate Differential Percent EffectiveIncomeTaxRateReconciliationUnrecordedForeignIncomeTaxRateDifferentialPercent	-0.0016
CY2019	cubi	Effective Income Tax Rate Reconciliation Unrecorded Foreign Income Tax Rate Differential Amount EffectiveIncomeTaxRateReconciliationUnrecordedForeignIncomeTaxRateDifferentialAmount	-144000	USD
CY2019	cubi	Effective Income Tax Rate Reconciliation Unrecorded Foreign Income Tax Rate Differential Percent EffectiveIncomeTaxRateReconciliationUnrecordedForeignIncomeTaxRateDifferentialPercent	-0.0013
CY2021	cubi	Effective Income Tax Rate Reconciliation Recorded Foreign Income Tax Rate Differential Amount EffectiveIncomeTaxRateReconciliationRecordedForeignIncomeTaxRateDifferentialAmount	-4217000	USD
CY2021	cubi	Effective Income Tax Rate Reconciliation Recorded Foreign Income Tax Rate Differential Percent EffectiveIncomeTaxRateReconciliationRecordedForeignIncomeTaxRateDifferentialPercent	-0.0100
CY2020	cubi	Effective Income Tax Rate Reconciliation Recorded Foreign Income Tax Rate Differential Amount EffectiveIncomeTaxRateReconciliationRecordedForeignIncomeTaxRateDifferentialAmount	0	USD
CY2020	cubi	Effective Income Tax Rate Reconciliation Recorded Foreign Income Tax Rate Differential Percent EffectiveIncomeTaxRateReconciliationRecordedForeignIncomeTaxRateDifferentialPercent	0
CY2019	cubi	Effective Income Tax Rate Reconciliation Recorded Foreign Income Tax Rate Differential Amount EffectiveIncomeTaxRateReconciliationRecordedForeignIncomeTaxRateDifferentialAmount	0	USD
CY2019	cubi	Effective Income Tax Rate Reconciliation Recorded Foreign Income Tax Rate Differential Percent EffectiveIncomeTaxRateReconciliationRecordedForeignIncomeTaxRateDifferentialPercent	0
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	563000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0054
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	441000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0028
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	129000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0012
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	86940000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.1970
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46717000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2462
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26392000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.2449
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	36111000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	37503000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	825000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	916000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	8356000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	8564000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	10703000	USD
CY2021Q4	cubi	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	3806000	USD
CY2020Q4	cubi	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	4683000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1748000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	4740000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3080000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2830000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	58666000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	65199000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	6405000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	2335000	USD
CY2021Q4	cubi	Deferred Tax Liabilities Tax Qualified Lease Adjustments DeferredTaxLiabilitiesTaxQualifiedLeaseAdjustments	50605000	USD
CY2020Q4	cubi	Deferred Tax Liabilities Tax Qualified Lease Adjustments DeferredTaxLiabilitiesTaxQualifiedLeaseAdjustments	38527000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	3321000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	4312000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	8194000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1173000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1284000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	61504000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	54652000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2838000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	10547000	USD
CY2021Q4	cubi	Benchmark Percentage Of Gross Revenues For Related Party Transactions BenchmarkPercentageOfGrossRevenuesForRelatedPartyTransactions	0.05
CY2021Q4	cubi	Commitments To Fund Loans And Leases CommitmentsToFundLoansAndLeases	321473000	USD
CY2020Q4	cubi	Commitments To Fund Loans And Leases CommitmentsToFundLoansAndLeases	262153000	USD
CY2021Q4	cubi	Unfunded Commitments To Fund Mortgage Warehouse Loans UnfundedCommitmentsToFundMortgageWarehouseLoans	2732258000	USD
CY2020Q4	cubi	Unfunded Commitments To Fund Mortgage Warehouse Loans UnfundedCommitmentsToFundMortgageWarehouseLoans	1933067000	USD
CY2021Q4	cubi	Unfunded Commitments Under Lines Of Credit UnfundedCommitmentsUnderLinesOfCredit	1535573000	USD
CY2020Q4	cubi	Unfunded Commitments Under Lines Of Credit UnfundedCommitmentsUnderLinesOfCredit	1009031000	USD
CY2021Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	25646000	USD
CY2020Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	27166000	USD
CY2021Q4	us-gaap	Other Commitment OtherCommitment	875000	USD
CY2020Q4	us-gaap	Other Commitment OtherCommitment	1842000	USD
CY2020	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-1100000	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2300000	USD
CY2021	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-200000	USD
CY2021Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2100000	USD
CY2021Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1291270000	USD
CY2021Q4	cubi	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.09981
CY2021Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	582179000	USD
CY2021Q4	cubi	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.04500
CY2021Q4	cubi	Common Equity Tier One Capital Requiredfor Basel Iii CommonEquityTierOneCapitalRequiredforBaselIII	905611000	USD
CY2021Q4	cubi	Tier One Common Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneCommonCapitalRequiredforBaselIIItoRiskWeightedAssets	0.07000
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1429063000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.11046
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	776238000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06000
CY2021Q4	cubi	Tier One Risk Based Capital Requiredfor Basel Iii TierOneRiskBasedCapitalRequiredforBaselIII	1099671000	USD
CY2021Q4	cubi	Tier One Risk Based Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneRiskBasedCapitalRequiredforBaselIIItoRiskWeightedAssets	0.08500
CY2021Q4	us-gaap	Capital Capital	1667395000	USD
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.12888
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	1034984000	USD
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08000
CY2021Q4	cubi	Capital Requiredfor Basel Iii CapitalRequiredforBaselIII	1358417000	USD
CY2021Q4	cubi	Capital Requiredfor Basel Ii Ito Risk Weighted Assets CapitalRequiredforBaselIIItoRiskWeightedAssets	0.10500
CY2021Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1429063000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.07413
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	771084000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04000
CY2021Q4	cubi	Tier One Leverage Capital Requiredfor Basel Iii TierOneLeverageCapitalRequiredforBaselIII	771084000	USD
CY2021Q4	cubi	Tier One Leverage Capital Requiredfor Basel Ii Ito Average Assets TierOneLeverageCapitalRequiredforBaselIIItoAverageAssets	0.04000
CY2020Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	954839000	USD
CY2020Q4	cubi	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.08079
CY2020Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	531844000	USD
CY2020Q4	cubi	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.04500
CY2020Q4	cubi	Common Equity Tier One Capital Requiredfor Basel Iii CommonEquityTierOneCapitalRequiredforBaselIII	827312000	USD
CY2020Q4	cubi	Tier One Common Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneCommonCapitalRequiredforBaselIIItoRiskWeightedAssets	0.07000
CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1172310000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.09919
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	709125000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06000
CY2020Q4	cubi	Tier One Risk Based Capital Requiredfor Basel Iii TierOneRiskBasedCapitalRequiredforBaselIII	1004594000	USD
CY2020Q4	cubi	Tier One Risk Based Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneRiskBasedCapitalRequiredforBaselIIItoRiskWeightedAssets	0.08500
CY2020Q4	us-gaap	Capital Capital	1401119000	USD
CY2020Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.11855
CY2020Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	945500000	USD
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08000
CY2020Q4	cubi	Capital Requiredfor Basel Iii CapitalRequiredforBaselIII	1240969000	USD
CY2020Q4	cubi	Capital Requiredfor Basel Ii Ito Risk Weighted Assets CapitalRequiredforBaselIIItoRiskWeightedAssets	0.10500
CY2020Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1172310000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.08597
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	545485000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04000
CY2020Q4	cubi	Federal Home Loan Bank Advances Branchof Fhlb Bank Amountof Advances Fair Value Disclosure FederalHomeLoanBankAdvancesBranchofFHLBBankAmountofAdvancesFairValueDisclosure	852442000	USD
CY2020Q4	us-gaap	Other Borrowings OtherBorrowings	124037000	USD
CY2020Q4	cubi	Tier One Leverage Capital Requiredfor Basel Iii TierOneLeverageCapitalRequiredforBaselIII	545485000	USD
CY2020Q4	cubi	Tier One Leverage Capital Requiredfor Basel Ii Ito Average Assets TierOneLeverageCapitalRequiredforBaselIIItoAverageAssets	0.04000
CY2021Q4	cubi	Capital Conservation Bufferto Risk Weighted Assets Year Fourand Thereafter CapitalConservationBuffertoRiskWeightedAssetsYearFourandThereafter	0.02500
CY2021	cubi	Loans Held For Sale Average Life From Purchase To Sale LoansHeldForSaleAverageLifeFromPurchaseToSale	P30D
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	518032000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	518032000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3791575000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	3791575000	USD
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	16254000	USD
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	16254000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	14414827000	USD
CY2021Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	14207811000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	64584000	USD
CY2021Q4	cubi	Federal Home Loan Bank Stock And Federal Reserve Bank Stock Fair Value FederalHomeLoanBankStockAndFederalReserveBankStockFairValue	64584000	USD
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	27295000	USD
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	27295000	USD
CY2021Q4	us-gaap	Deposits Deposits	16777924000	USD
CY2021Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	16777236000	USD
CY2021Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	75000000	USD
CY2021Q4	us-gaap	Federal Funds Purchased Fair Value Disclosure FederalFundsPurchasedFairValueDisclosure	75000000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	700000000	USD
CY2021Q4	cubi	Federal Home Loan Bank Advances Branchof Fhlb Bank Amountof Advances Fair Value Disclosure FederalHomeLoanBankAdvancesBranchofFHLBBankAmountofAdvancesFairValueDisclosure	700000000	USD
CY2021Q4	us-gaap	Other Borrowings OtherBorrowings	223086000	USD
CY2021Q4	cubi	Borrowings Fair Value Disclosure BorrowingsFairValueDisclosure	226585000	USD
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	181673000	USD
CY2021Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	204782000	USD
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	26544000	USD
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	26544000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	693354000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	693354000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1206431000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1206431000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3854000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3854000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	79086000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	79086000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15608989000	USD
CY2020Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	16222202000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	71368000	USD
CY2020Q4	cubi	Federal Home Loan Bank Stock And Federal Reserve Bank Stock Fair Value FederalHomeLoanBankStockAndFederalReserveBankStockFairValue	71368000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	54223000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	54223000	USD
CY2020Q4	us-gaap	Deposits Deposits	11309929000	USD
CY2020Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	11312494000	USD
CY2020Q4	cubi	Federal Reserve Bank Paycheck Protection Program Liquidity Facility Cares Act FederalReserveBankPaycheckProtectionProgramLiquidityFacilityCARESAct	4415016000	USD
CY2020Q4	cubi	Federal Reserve Bank Advances Fair Value FederalReserveBankAdvancesFairValue	4415016000	USD
CY2020Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	250000000	USD
CY2020Q4	us-gaap	Federal Funds Purchased Fair Value Disclosure FederalFundsPurchasedFairValueDisclosure	250000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	850000000	USD
CY2020Q4	cubi	Borrowings Fair Value Disclosure BorrowingsFairValueDisclosure	129120000	USD
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	181394000	USD
CY2020Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	193119000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	98164000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	98164000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-26972000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-13092000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1407000	USD
CY2021Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	23100000	USD
CY2021	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	LOSS CONTINGENCIES<div style="margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there are any such matters that will have a material effect on the consolidated financial statements that are not currently accrued for. However, in light of the uncertainties inherent in these matters, it is possible that the ultimate resolution may have a material adverse effect on Customers’ results of operations for a particular period, and future changes in circumstances or additional information could result in accruals or resolution in excess of established accruals, which could adversely affect Customers’ results of operations, potentially materially.</span></div><div style="margin-top:12pt;text-align:justify"><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">United States Department of Education Matter</span></div><div style="margin-top:9pt"><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In third quarter 2018, Customers received a Final Program Review Determination ("FPRD") letter dated September 5, 2018 from the ED regarding a focused program review of Higher One's/Customers Bank's administration, as a third party servicer, of the programs authorized pursuant to Title IV of the Higher Education Act of 1965. The ED program review covered the award years beginning in 2013 through the FPRD issuance date, including the time period when Higher One was acting as the third party servicer prior to Customers' acquisition of the Disbursement Business on June 15, 2016. The FPRD determined that, with respect to students enrolled at specified partner institutions, Higher One/Customers did not provide convenient fee-free access to ATMs or bank branch offices in such locations as required by the ED’s cash management regulations. Those regulations, which were in effect during the period covered by the program review and were revised during that period, seek, among other purposes, to ensure that students can make fee-free cash withdrawals. The FPRD determined that students incurred prohibited costs in accessing Title IV credit balance funds, and the FPRD classifies those costs as financial liabilities of Customers. The FPRD also requires Customers to take prospective action to increase ATM access for students at certain of its part</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ner institutions. Customers disagreed with the FPRD and appealed the asserted financial liabilities of $6.5 million, and a request for review has been submitted to trigger an administrative process before the ED’s Office of Hearing and Appeals.</span></div><div style="margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On March 26, 2020, the ED and Customers filed a Joint Motion to Dismiss with Prejudice (the "Joint Motion") with the United States Department of Education. The Joint Motion states that the ED and Customers reached an agreement that resolves the liabilities at issue in the appeal. The Joint Motion was granted on April 27, 2020. As part of the settlement, the liabilities assessed in the FPRD were reduced to $3.0 million (the "settlement amount"). Customers had previously recorded a liability in the amount of $1.0 million during third quarter 2019 and increased its liability by an additional $1.0 million in first quarter 2020. The remaining $1.0 million is expected to be funded from funds in an escrow account set-up at the time of Customers' acquisition of the Disbursement Business from Higher One in 2016.</span></div><div style="margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Specialty’s Café Bakery, Inc. Matter</span></div><div style="margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On May 27, 2020, the appointed Chapter 7 Trustee for Specialty’s Café Bakery, Inc. (“Debtor”) filed a voluntary petition for relief under Chapter 7 of the Bankruptcy Code in the United States Bankruptcy Court for the Central District of California. On October 28, 2020, the Trustee, as plaintiff, filed her amended adversary complaint (“Adversary Complaint”) against the Bank and the SBA seeking to avoid and recover for the benefit of the Debtor’s estate and its creditors the payment made by the Debtor to the Bank in the amount of $8.1 million in satisfaction of a PPP loan made by the Bank to the Debtor (the “PPP Loan Payment”). The Trustee sought to avoid and recover the entire PPP Loan Payment from the Bank under the authority provided in 11 U.S.C. §547 and §550, which together permit a trustee of a bankruptcy debtor to avoid and recover, for a more equitable distribution among all creditors, certain transfers made within ninety (90) days before the filing of the bankruptcy petition. On December 2, 2021, the Bank filed a motion for summary judgement, arguing that the Trustee had failed to establish the elements under 11 U.S.C. §547 necessary to recover the PPP Loan Payment and other affirmative defenses to any such recovery. On February 2, 2022, the United States Bankruptcy Court for the Central District of California granted the Bank’s motion for summary judgment, finding that the PPP Loan Payment was not recoverable by the Trustee. The Trustee has elected not to appeal this decision and, on February 23, 2022, the case against the Bank was closed by the United States Bankruptcy Court for the Central District of California.</span></div>
CY2021Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	214037000	USD
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	242851000	USD
CY2021Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	162881000	USD
CY2021Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	161115000	USD
CY2021Q4	us-gaap	Interest Expense InterestExpense	20343000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	22959000	USD
CY2021Q2	us-gaap	Interest Expense InterestExpense	24124000	USD
CY2021Q1	us-gaap	Interest Expense InterestExpense	28384000	USD
CY2021Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	193694000	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	219892000	USD
CY2021Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	138757000	USD
CY2021Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	132731000	USD
CY2021Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	13890000	USD
CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	13164000	USD
CY2021Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	3291000	USD
CY2021Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-2919000	USD
CY2021Q4	us-gaap	Noninterest Income NoninterestIncome	16991000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	25586000	USD
CY2021Q2	us-gaap	Noninterest Income NoninterestIncome	16822000	USD
CY2021Q1	us-gaap	Noninterest Income NoninterestIncome	18468000	USD
CY2021Q4	us-gaap	Noninterest Expense NoninterestExpense	81548000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	80009000	USD
CY2021Q2	us-gaap	Noninterest Expense NoninterestExpense	70823000	USD
CY2021Q1	us-gaap	Noninterest Expense NoninterestExpense	61927000	USD
CY2021Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	115247000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	152305000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	81465000	USD
CY2021Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	92191000	USD
CY2021Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12993000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36263000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20124000	USD
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17560000	USD
CY2021Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	102254000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	116042000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	61341000	USD
CY2021Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	74631000	USD
CY2021Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
CY2021Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
CY2021Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
CY2021Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-20354000	USD
CY2021Q4	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	1585000	USD
CY2021Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2021Q2	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2021Q1	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	17682000	USD
CY2021Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-1585000	USD
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2021Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2021Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-38036000	USD
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	100669000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	116042000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	61341000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	36595000	USD
CY2021Q4	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2022000	USD
CY2021Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2981000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3299000	USD
CY2021Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3391000	USD
CY2021Q4	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2021Q3	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	2820000	USD
CY2021Q2	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2021Q1	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2021Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	98647000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	110241000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	58042000	USD
CY2021Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	33204000	USD
CY2021Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.07
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.40
CY2021Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.80
CY2021Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.23
CY2021Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.02
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.40
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.80
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.04
CY2021Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.92
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.25
CY2021Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.72
CY2021Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.17
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.87
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.25
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.72
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.01
CY2020Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	153093000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	139650000	USD
CY2020Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	125218000	USD
CY2020Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	125343000	USD
CY2020Q4	us-gaap	Interest Expense InterestExpense	30147000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	32211000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	33236000	USD
CY2020Q1	us-gaap	Interest Expense InterestExpense	44022000	USD
CY2020Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	122946000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	107439000	USD
CY2020Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	91982000	USD
CY2020Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	81321000	USD
CY2020Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-2913000	USD
CY2020Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	12955000	USD
CY2020Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	20946000	USD
CY2020Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	31786000	USD
CY2020Q4	us-gaap	Noninterest Income NoninterestIncome	16083000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	24864000	USD
CY2020Q2	us-gaap	Noninterest Income NoninterestIncome	11711000	USD
CY2020Q1	us-gaap	Noninterest Income NoninterestIncome	11160000	USD
CY2020Q4	us-gaap	Noninterest Expense NoninterestExpense	59933000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	56285000	USD
CY2020Q2	us-gaap	Noninterest Expense NoninterestExpense	49791000	USD
CY2020Q1	us-gaap	Noninterest Expense NoninterestExpense	48967000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	82009000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	63063000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32956000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11728000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23447000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12016000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7980000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3274000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	58562000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	51047000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	24976000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	8454000	USD
CY2020Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-3539000	USD
CY2020Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-347000	USD
CY2020Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-3190000	USD
CY2020Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-6722000	USD
CY2020Q4	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-1222000	USD
CY2020Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	185000	USD
CY2020Q2	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-932000	USD
CY2020Q1	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-1368000	USD
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2317000	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-532000	USD
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2258000	USD
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-5354000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	56245000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	50515000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	22718000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	3100000	USD
CY2020Q4	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3414000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3430000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3581000	USD
CY2020Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3615000	USD
CY2020Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	52831000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	47085000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	19137000	USD
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-515000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.74
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.51
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.68
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.15
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.73
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.50
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.68
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.15
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.65
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.48
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02

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$CUBI
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2021 Q4 Form 10-K Financial Statement

#000148881322000018 Filed on February 28, 2022

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$CUBI Customers Bancorp, Inc. Stock $cubi

2021 Q4 Form 10-K Financial Statement

#000148881322000018 Filed on February 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CUBI
Customers Bancorp, Inc. Stock $cubi