$CUBI
Customers Bancorp, Inc. Stock $cubi

$cubi Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000148881321000168 Filed on November 08, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q3
Revenue	$214.0M	$242.9M	$139.7M
YoY Change	39.81%	73.9%	10.21%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development		$21.28M	$13.01M
YoY Change		63.64%	48.54%
% of Gross Profit
Depreciation & Amortization	$5.500M	$5.500M	-$800.0K
YoY Change	10.0%	-787.5%	-112.7%
% of Gross Profit
Operating Expenses		$21.28M	$13.01M
YoY Change		63.64%	48.54%
Operating Profit
YoY Change
Interest Expense	$20.34M	$22.96M	$32.21M
YoY Change	-32.52%	-28.72%	-36.82%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$115.2M	$152.3M	$63.06M
YoY Change	40.53%	141.51%	79.74%
Income Tax	$12.99M	$36.26M	$12.02M
% Of Pretax Income	11.27%	23.81%	19.05%
Net Earnings	$100.7M	$116.0M	$50.52M
YoY Change	78.98%	129.72%	86.64%
Net Earnings / Revenue	47.03%	47.78%	36.17%
Basic Earnings Per Share	$3.02	$3.40	$1.49
Diluted Earnings Per Share	$2.87	$3.25	$1.48
COMMON SHARES
Basic Shares Outstanding	32.41M shares	32.45M shares	31.52M shares
Diluted Shares Outstanding		33.87M shares	31.74M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$518.0M	$1.052B	$331.4M
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	$11.74M
YoY Change	-20.8%	-15.33%	-16.56%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$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	$18.78B
YoY Change	6.16%	1.76%	60.18%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$210.0M	$433.0M	$222.0M
YoY Change	183.78%	95.05%	177.5%
Accrued Expenses	$15.00M	$16.00M	$20.00M
YoY Change	-21.05%	-20.0%	-9.09%
Deferred Revenue
YoY Change
Short-Term Debt	$775.0M	$0.00	$1.530B
YoY Change	-29.55%	-100.0%	310.19%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$225.0M	$449.0M	$242.0M
YoY Change	141.94%	85.54%	137.25%
LONG-TERM LIABILITIES
Long-Term Debt	$405.0M	$405.0M	$5.116B
YoY Change	-91.42%	-92.08%	2095.71%
Other Long-Term Liabilities	$27.00M	$0.00
YoY Change	-72.45%
Total Long-Term Liabilities	$432.0M	$405.0M	$5.116B
YoY Change	-91.03%	-92.08%	1837.88%
TOTAL LIABILITIES
Total Short-Term Liabilities	$225.0M	$449.0M	$242.0M
Total Long-Term Liabilities	$432.0M	$405.0M	$5.116B
Total Liabilities	$18.21B	$17.82B	$17.73B
YoY Change	5.12%	0.55%	65.6%
SHAREHOLDERS EQUITY
Retained Earnings	$705.7M	$607.1M	$385.8M
YoY Change	60.91%	57.38%	7.87%
Common Stock	$34.72M	$33.82M	$32.84M
YoY Change	5.26%	2.99%	0.95%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$49.44M	$21.78M	$21.78M
YoY Change	127.01%	0.0%	0.0%
Treasury Stock Shares	1.808M shares	1.281M shares	1.281M shares
Shareholders Equity	$1.366B	$1.284B	$1.051B
YoY Change
Total Liabilities & Shareholders Equity	$19.58B	$19.11B	$18.78B
YoY Change	6.16%	1.76%	60.18%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	$100.7M	$116.0M	$50.52M
YoY Change	78.98%	129.72%	86.64%
Depreciation, Depletion And Amortization	$5.500M	$5.500M	-$800.0K
YoY Change	10.0%	-787.5%	-112.7%
Cash From Operating Activities	$19.50M	-$14.80M	$33.90M
YoY Change	-67.28%	-143.66%	7.28%
INVESTING ACTIVITIES
Capital Expenditures	-$15.90M	-$8.200M	-$6.400M
YoY Change	20.45%	28.13%	-68.93%
Acquisitions
YoY Change
Other Investing Activities	-$1.105B	$1.397B	-$1.704B
YoY Change	-263.73%	-181.98%	294.88%
Cash From Investing Activities	-$1.120B	$1.389B	-$1.711B
YoY Change	-269.4%	-181.19%	278.31%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	567.0M	-752.6M	941.0M
YoY Change	-257.85%	-179.98%	85.6%
NET CHANGE
Cash From Operating Activities	19.50M	-14.80M	33.90M
Cash From Investing Activities	-1.120B	1.389B	-1.711B
Cash From Financing Activities	567.0M	-752.6M	941.0M
Net Change In Cash	-533.9M	621.5M	-735.8M
YoY Change	-247.57%	-184.47%	-951.62%
FREE CASH FLOW
Cash From Operating Activities	$19.50M	-$14.80M	$33.90M
Capital Expenditures	-$15.90M	-$8.200M	-$6.400M
Free Cash Flow	$35.40M	-$6.600M	$40.30M
YoY Change	-51.37%	-116.38%	-22.8%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0001488813
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-35542
	dei	Entity Registrant Name EntityRegistrantName	Customers Bancorp, Inc.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-2290659
	dei	Entity Address Address Line1 EntityAddressAddressLine1	701 Reading Avenue
	dei	Entity Address City Or Town EntityAddressCityOrTown	West Reading
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	19611
	dei	City Area Code CityAreaCode	610
	dei	Local Phone Number LocalPhoneNumber	933-2000
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
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CY2020Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	94484000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	477844000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	215054000	USD
CY2021Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	5213000	USD
CY2020Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	4510000	USD
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	15729000	USD
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	13286000	USD
CY2021Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1988000	USD
CY2020Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1746000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	6432000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	5265000	USD
CY2021Q3	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	3100000	USD
CY2020Q3	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	3320000	USD
	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	10612000	USD
	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	7854000	USD
CY2021Q3	cubi	Gain On Sale Of Mortgages And Other Loans GainOnSaleOfMortgagesAndOtherLoans	5359000	USD
CY2020Q3	cubi	Gain On Sale Of Mortgages And Other Loans GainOnSaleOfMortgagesAndOtherLoans	286000	USD
	cubi	Gain On Sale Of Mortgages And Other Loans GainOnSaleOfMortgagesAndOtherLoans	8834000	USD
	cubi	Gain On Sale Of Mortgages And Other Loans GainOnSaleOfMortgagesAndOtherLoans	320000	USD
CY2021Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	425000	USD
CY2020Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	1013000	USD
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	1274000	USD
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	1347000	USD
CY2021Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	6063000	USD
CY2020Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	11707000	USD
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	31441000	USD
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	20035000	USD
CY2021Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	238000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	2720000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	60000	USD
CY2021Q3	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-2840000	USD
	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
CY2021Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	524000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	549000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	2622000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-4755000	USD
CY2021Q3	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
CY2020Q3	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	-24467000	USD
	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
CY2021Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1837000	USD
CY2020Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	753000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5519000	USD
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2066000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	25586000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	24864000	USD
	us-gaap	Noninterest Income NoninterestIncome	60876000	USD
	us-gaap	Noninterest Income NoninterestIncome	47736000	USD
CY2021Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	26268000	USD
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	24752000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	78262000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	68467000	USD
CY2021Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	21281000	USD
CY2020Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	13005000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	60887000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	34647000	USD
CY2021Q3	us-gaap	Professional Fees ProfessionalFees	8249000	USD
CY2020Q3	us-gaap	Professional Fees ProfessionalFees	4421000	USD
	us-gaap	Professional Fees ProfessionalFees	22772000	USD
	us-gaap	Professional Fees ProfessionalFees	10939000	USD
CY2021Q3	us-gaap	Occupancy Net OccupancyNet	2704000	USD
CY2020Q3	us-gaap	Occupancy Net OccupancyNet	3368000	USD
	us-gaap	Occupancy Net OccupancyNet	7807000	USD
	us-gaap	Occupancy Net OccupancyNet	8620000	USD
CY2021Q3	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	4493000	USD
CY2020Q3	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	3663000	USD
	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	13199000	USD
	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	10733000	USD
CY2021Q3	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	2313000	USD
CY2020Q3	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	3784000	USD
	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	7634000	USD
	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	9019000	USD
CY2021Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2020Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	658000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	418000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	658000	USD
CY2021Q3	cubi	Loan Workout Expense Income LoanWorkoutExpenseIncome	198000	USD
CY2020Q3	cubi	Loan Workout Expense Income LoanWorkoutExpenseIncome	846000	USD
	cubi	Loan Workout Expense Income LoanWorkoutExpenseIncome	39000	USD
	cubi	Loan Workout Expense Income LoanWorkoutExpenseIncome	3020000	USD
CY2021Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	302000	USD
CY2020Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	0	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1176000	USD
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1795000	USD
CY2021Q3	cubi	Deposit Relationship Modification Fees DepositRelationshipModificationFees	6216000	USD
CY2020Q3	cubi	Deposit Relationship Modification Fees DepositRelationshipModificationFees	0	USD
	cubi	Deposit Relationship Modification Fees DepositRelationshipModificationFees	6216000	USD
	cubi	Deposit Relationship Modification Fees DepositRelationshipModificationFees	0	USD
CY2021Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	7985000	USD
CY2020Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1788000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	14349000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	7145000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	80009000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	56285000	USD
	us-gaap	Noninterest Expense NoninterestExpense	212759000	USD
	us-gaap	Noninterest Expense NoninterestExpense	155043000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	152305000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	63063000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	325961000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	107747000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36263000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12016000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	73947000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23270000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	116042000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	51047000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	252014000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	84477000	USD
CY2021Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
CY2020Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-347000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-20354000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-10259000	USD
CY2021Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2020Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	185000	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	17682000	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-2114000	USD
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-532000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-38036000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-8145000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	116042000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	50515000	USD
	us-gaap	Net Income Loss NetIncomeLoss	213978000	USD
	us-gaap	Net Income Loss NetIncomeLoss	76332000	USD
CY2021Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2981000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3430000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	9671000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	10626000	USD
CY2021Q3	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	2820000	USD
CY2020Q3	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	2820000	USD
	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	110241000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	47085000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	201487000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	65706000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.40
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.51
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	7.44
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.35
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.40
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.26
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.09
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.25
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.50
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	7.15
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.33
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.25
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.48
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.02
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.07
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	116042000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	50515000	USD
	us-gaap	Net Income Loss NetIncomeLoss	213978000	USD
	us-gaap	Net Income Loss NetIncomeLoss	76332000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	958000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1090000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1950000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	25127000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	249000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-283000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	507000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	6533000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	6063000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	11707000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	31441000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	20035000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	1576000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	3044000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	8174000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	5209000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3778000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-9470000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-21824000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	3768000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	580000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	12321000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-33486000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	151000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	3204000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-8884000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-4400000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-26972000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-8596000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-1145000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-7013000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-2263000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	3684000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	29076000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-18269000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3778000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5786000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7252000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-14501000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	112264000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	44729000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	221230000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	61831000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	1250729000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	116042000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3778000	USD
CY2021Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	2981000	USD
CY2021Q3	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	79677000	USD
CY2021Q3	cubi	Write Off Of Stock Issuance Costs Preferred Stock WriteOffOfStockIssuanceCostsPreferredStock	2820000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3289000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3495000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1284299000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	1007847000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	50515000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5786000	USD
CY2020Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3430000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2028000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	317000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1051491000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1117086000	USD
	us-gaap	Net Income Loss NetIncomeLoss	213978000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7252000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	9671000	USD
	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	79677000	USD
	cubi	Write Off Of Stock Issuance Costs Preferred Stock WriteOffOfStockIssuanceCostsPreferredStock	2820000	USD
	cubi	Adjustments To Additional Paid In Capital Increase From Sale Of Noncontrolling Interest AdjustmentsToAdditionalPaidInCapitalIncreaseFromSaleOfNoncontrollingInterest	31893000	USD
	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	32983000	USD
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	19592000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11162000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	8487000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1284299000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1052795000	USD
	us-gaap	Net Income Loss NetIncomeLoss	76332000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-14501000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	10626000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8855000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	111000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1051491000	USD
	cubi	Special Dividends Shares SpecialDividendsShares	0.15389	shares
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	252014000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	84477000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	13536000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	65688000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	16221000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	13491000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	11194000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	9474000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7051000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-26188000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1171000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	449000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	2720000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	60000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	31441000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	20035000	USD
	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-2840000	USD
	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	2622000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-4755000	USD
	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	-24467000	USD
	us-gaap	Gain Loss On Discontinuation Of Cash Flow Hedge Due To Forecasted Transaction Probable Of Not Occurring Net GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet	0	USD
	cubi	Payment For Settlement Of Terminated Cash Flow Hedges PaymentForSettlementOfTerminatedCashFlowHedges	27156000	USD
	cubi	Payment For Settlement Of Terminated Cash Flow Hedges PaymentForSettlementOfTerminatedCashFlowHedges	0	USD
	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	-763000	USD
	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	0	USD
	cubi	Gain Loss On Fair Value Adjustment On Loans Held For Sale GainLossOnFairValueAdjustmentOnLoansHeldForSale	1115000	USD
	cubi	Gain Loss On Fair Value Adjustment On Loans Held For Sale GainLossOnFairValueAdjustmentOnLoansHeldForSale	0	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	10067000	USD
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	-194000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	55093000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	50941000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	49674000	USD
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	47009000	USD
	cubi	Accretion Of Fair Values Discounts Net AccretionOfFairValuesDiscountsNet	-149647000	USD
	cubi	Accretion Of Fair Values Discounts Net AccretionOfFairValuesDiscountsNet	-2106000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	6432000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	5265000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-45591000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	123609000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	136295000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	77355000	USD
	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	3765000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	274524000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	73790000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	258418000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	156759000	USD
	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	666023000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	377767000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1423959000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1024345000	USD
	cubi	Originationofmortgagewarehouseloans Originationofmortgagewarehouseloans	44292416000	USD
	cubi	Originationofmortgagewarehouseloans Originationofmortgagewarehouseloans	41764787000	USD
	cubi	Proceedsfrompayoffsofmortgagewarehouseloans Proceedsfrompayoffsofmortgagewarehouseloans	45356500000	USD
	cubi	Proceedsfrompayoffsofmortgagewarehouseloans Proceedsfrompayoffsofmortgagewarehouseloans	40106032000	USD
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-521323000	USD
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	4733097000	USD
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	260851000	USD
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	23390000	USD
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	1389512000	USD
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	226498000	USD
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	46462000	USD
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1999000	USD
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	14184000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	13827000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	418000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4182000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	45000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	77000	USD
	us-gaap	Proceeds From Sale Of Lease Receivables ProceedsFromSaleOfLeaseReceivables	5475000	USD
	us-gaap	Proceeds From Sale Of Lease Receivables ProceedsFromSaleOfLeaseReceivables	0	USD
	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	16691000	USD
	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	11432000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-80875000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-7086489000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	5661096000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2190141000	USD
	cubi	Proceeds From Repayments Of Short Term Debt From The Federal Home Loan Bank ProceedsFromRepaymentsOfShortTermDebtFromTheFederalHomeLoanBank	-850000000	USD
	cubi	Proceeds From Repayments Of Short Term Debt From The Federal Home Loan Bank ProceedsFromRepaymentsOfShortTermDebtFromTheFederalHomeLoanBank	0	USD
	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	250000000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	-142000000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	-4415016000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	4811009000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	98799000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	82497000	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	8794000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	10661000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4201000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1143000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	11660000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	635000	USD
	cubi	Proceeds From Sale Of Noncontrolling Interest ProceedsFromSaleOfNoncontrollingInterest	26795000	USD
	cubi	Proceeds From Sale Of Noncontrolling Interest ProceedsFromSaleOfNoncontrollingInterest	0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	187842000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	7131981000	USD
	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	381491000	USD
	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	119282000	USD
	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-22791000	USD
	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-423000	USD
	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	52000	USD
	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-22791000	USD
	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-371000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	358700000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	118911000	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
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1052054000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	331416000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	31000	USD
	us-gaap	Stock Issued1 StockIssued1	32983000	USD
	us-gaap	Stock Issued1 StockIssued1	0	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	17155000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	18336000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	55684000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	0	USD
	cubi	Unsettled Purchases Of Investment Securities UnsettledPurchasesOfInvestmentSecurities	160000000	USD
	cubi	Unsettled Purchases Of Investment Securities UnsettledPurchasesOfInvestmentSecurities	22500000	USD
	cubi	Transfer Of Multi Family Loans Held For Sale To Held For Investment TransferOfMultiFamilyLoansHeldForSaleToHeldForInvestment	0	USD
	cubi	Transfer Of Multi Family Loans Held For Sale To Held For Investment TransferOfMultiFamilyLoansHeldForSaleToHeldForInvestment	401144000	USD
	us-gaap	Nature Of Operations NatureOfOperations	DESCRIPTION OF THE BUSINESS<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%">Customers Bancorp, Inc. (“Customers Bancorp”) is a bank holding company engaged in banking activities through its wholly owned subsidiary, Customers Bank ("the Bank”), collectively referred to as “Customers” herein. </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%">Customers Bancorp and its wholly owned subsidiaries, the Bank, and non-bank subsidiaries, serve residents and businesses in Southeastern Pennsylvania (Bucks, Berks, Chester, Philadelphia and Delaware Counties); Harrisburg, Pennsylvania (Dauphin County); Rye Brook, New York (Westchester County); Hamilton, New Jersey (Mercer County); Boston, Massachusetts; Providence, Rhode Island; Portsmouth, New Hampshire (Rockingham County); Manhattan and Melville, New York; Washington, D.C.; Chicago, Illinois; Dallas, Texas; Orlando, Florida; Wilmington, North Carolina; and nationally for certain loan and deposit products. The Bank has 12 full-service branches and provides commercial banking products, primarily loans and deposits. In addition, Customers Bank also administratively supports loan and other financial products, including equipment finance leases, to customers through its limited-purpose offices in Boston, Massachusetts; Providence, Rhode Island; Portsmouth, New Hampshire; Manhattan and Melville, New York; Philadelphia and Lancaster, Pennsylvania; Chicago, Illinois; Dallas, Texas; Orlando, Florida and Wilmington, North Carolina. The Bank also serves specialty niche businesses nationwide, including its commercial loans to mortgage banking businesses, commercial equipment financing, SBA lending, specialty lending and consumer loans through relationships with fintech companies.</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%">The Bank is subject to regulation of the Pennsylvania Department of Banking and Securities and the Federal Reserve Bank and is periodically examined by those regulatory authorities. Customers Bancorp made certain equity investments through its wholly owned subsidiaries CB Green Ventures Pte Ltd. and CUBI India Ventures Pte Ltd., which were sold in June 2021. See NOTE 6 – INVESTMENT SECURITIES for additional information.</span></div>
CY2021Q3	cubi	Number Of Branches NumberOfBranches	12	branch
CY2021Q3	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	110241000	USD
CY2020Q3	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	47617000	USD
	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	239523000	USD
	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	73851000	USD
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-532000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-38036000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-8145000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	110241000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	47085000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	201487000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	65706000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32449853	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31517504	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32206547	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31462284	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1418700	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	218807	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1281125	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	203743	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33868553	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31736311	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33487672	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31666027	shares
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.40
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.51
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	7.44
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.35
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-1.18
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.26
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.40
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.26
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.09
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.25
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.50
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	7.15
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.33
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-1.13
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.26
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.25
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.48
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.02
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.07
CY2021Q3	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	958000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	249000	USD
CY2021Q3	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	709000	USD
CY2021Q3	us-gaap	Reclassification From Aoci Current Period Before Tax Attributable To Parent ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent	6063000	USD
CY2021Q3	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	1576000	USD
CY2021Q3	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	4487000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3778000	USD
CY2020Q3	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	-510000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-132000	USD
CY2020Q3	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-378000	USD
CY2020Q3	us-gaap	Reclassification From Aoci Current Period Before Tax Attributable To Parent ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent	7307000	USD
CY2020Q3	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	1899000	USD
CY2020Q3	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	5408000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5786000	USD
	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	14271000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	3711000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1861697000	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	5000000	USD
CY2021Q3	cubi	Investment Securitiesat Fair Value InvestmentSecuritiesatFairValue	1866697000	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
	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	10560000	USD
	us-gaap	Reclassification From Aoci Current Period Before Tax Attributable To Parent ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent	4469000	USD
	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	1161000	USD
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	3308000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7252000	USD
	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	-8359000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Tax OtherComprehensiveIncomeLossBeforeReclassificationsTax	-2351000	USD
	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-6008000	USD
	us-gaap	Reclassification From Aoci Current Period Before Tax Attributable To Parent ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent	11439000	USD
	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	2946000	USD
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	8493000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-14501000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1860529000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	5780000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	4612000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	4200000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3854000	USD
CY2020Q4	cubi	Investment Securitiesat Fair Value InvestmentSecuritiesatFairValue	1210285000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	6300000	USD
	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	3800000	USD
CY2021Q2	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-2800000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	2700000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	200000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-100000	USD
CY2021Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	258400000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	666000000	USD
CY2020Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	268600000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	377800000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	6100000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	31400000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	11700000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	20000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	4932000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	5022000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	280813000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	282050000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	156973000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	159475000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	3000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	3000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1860529000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1861697000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	487009000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	4569000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1957000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	43000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	488966000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	4612000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	35	security
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	1	contract
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	36	contract
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	36	security
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	16	security
CY2021Q3	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	12400000	USD
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	18800000	USD
CY2021Q3	cubi	Multi Family Commercial Loans Held For Sale MultiFamilyCommercialLoansHeldForSale	17290000	USD
CY2020Q4	cubi	Multi Family Commercial Loans Held For Sale MultiFamilyCommercialLoansHeldForSale	0	USD
CY2021Q3	cubi	Commercial Industrial Loans Held For Sale CommercialIndustrialLoansHeldForSale	0	USD
CY2020Q4	cubi	Commercial Industrial Loans Held For Sale CommercialIndustrialLoansHeldForSale	55683000	USD
CY2021Q3	cubi	Commercial Real Estate Non Owner Occupied Loans Held For Sale CommercialRealEstateNonOwnerOccupiedLoansHeldForSale	0	USD
CY2020Q4	cubi	Commercial Real Estate Non Owner Occupied Loans Held For Sale CommercialRealEstateNonOwnerOccupiedLoansHeldForSale	17251000	USD
CY2021Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Commercial Real Estate1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupCommercialRealEstate1	17290000	USD
CY2020Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Commercial Real Estate1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupCommercialRealEstate1	72934000	USD
CY2021Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Home Equity1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerHomeEquity1	508000	USD
CY2020Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Home Equity1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerHomeEquity1	643000	USD
CY2021Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage1	12159000	USD
CY2020Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage1	5509000	USD
CY2021Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumer	12667000	USD
CY2020Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumer	6152000	USD
CY2021Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	29957000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	79086000	USD
CY2021Q3	cubi	Loans Held For Sale Including Nonperforming Loans LoansHeldForSaleIncludingNonperformingLoans	500000	USD
CY2020Q4	cubi	Loans Held For Sale Including Nonperforming Loans LoansHeldForSaleIncludingNonperformingLoans	18500000	USD
CY2021Q3	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	2557624000	USD
CY2020Q4	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	3616432000	USD
CY2021Q3	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	4957357000	USD
CY2020Q4	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	4561365000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7970599000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7575368000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	131496000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144176000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15354084000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15608989000	USD
CY2021Q3	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-131200000	USD
CY2020Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-54600000	USD
CY2021Q3	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	87700000	USD
CY2020Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	76600000	USD
	cubi	Loans Held For Sale Average Life From Purchase To Sale LoansHeldForSaleAverageLifeFromPurchaseToSale	P30D
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7970599000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7575368000	USD
CY2021Q3	us-gaap	Financing Receivable Threshold Period Past Due FinancingReceivableThresholdPeriodPastDue	P30D
CY2021Q3	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	11000000	USD
CY2020Q4	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	13400000	USD
CY2021Q3	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	44077000	USD
CY2021Q3	cubi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	7457000	USD
CY2021Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	51534000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	40862000	USD
CY2020Q4	cubi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	11177000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	52039000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	125436000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5877000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	8755000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1651000	USD
CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	13164000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	131496000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144176000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	31361000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5145000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	13536000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	131496000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	159905000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	21946000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4647000	USD
CY2020Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	12955000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	155561000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	56379000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	52212000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	65688000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	155561000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	131500000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	-12700000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	144200000	USD
CY2021Q3	cubi	Loans Receivables Gross Troubled Debt Restructurings LoansReceivablesGrossTroubledDebtRestructurings	17000000	USD
CY2020Q4	cubi	Loans Receivables Gross Troubled Debt Restructurings LoansReceivablesGrossTroubledDebtRestructurings	16100000	USD
	cubi	Financing Receivable Impairment Minimum Performance Requirement Period FinancingReceivableImpairmentMinimumPerformanceRequirementPeriod	P6M
CY2021Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	0	USD
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	0	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	43	Loan
CY2021Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	931000	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	67	Loan
CY2020Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1473000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	174	Loan
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2954000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	105	Loan
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	3231000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	0	USD
CY2020Q4	cubi	Number Of Commitments To Lend Additional Funds For Troubled Debt Restructurings NumberOfCommitmentsToLendAdditionalFundsForTroubledDebtRestructurings	0	Commitment
CY2021Q3	cubi	Number Of Commitments To Lend Additional Funds For Troubled Debt Restructurings NumberOfCommitmentsToLendAdditionalFundsForTroubledDebtRestructurings	0	Commitment
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	21	Loan
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	302000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	15	Loan
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	15	Loan
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1374000	USD
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1374000	USD
	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	11000000	USD
CY2020	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	13400000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1700985000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1249900000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	1154989000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	620329000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	786670000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1259055000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	1198671000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7970599000	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
CY2021Q3	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	652176000	USD
CY2020Q3	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	15700000	USD
	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	1389512000	USD
	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	225963000	USD
CY2021Q3	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	130350000	USD
CY2020Q3	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	0.981
CY2020Q3	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	21568000	USD
	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	260851000	USD
	us-gaap	Financing Receivable Significant Sales FinancingReceivableSignificantSales	23390000	USD
CY2021Q3	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	0.992
	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	1.010
	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	1.002
CY2021Q3	us-gaap	Gain Loss On Sale Of Notes Receivable GainLossOnSaleOfNotesReceivable	5800000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Notes Receivable GainLossOnSaleOfNotesReceivable	300000	USD
	us-gaap	Gain Loss On Sale Of Notes Receivable GainLossOnSaleOfNotesReceivable	10100000	USD
	us-gaap	Gain Loss On Sale Of Notes Receivable GainLossOnSaleOfNotesReceivable	300000	USD
CY2021Q3	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	3700000000	USD
CY2020Q4	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	8500000000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P15Y
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	14598000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	16578000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	15818000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	18005000	USD
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	1147000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	1657000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3394000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	4060000	USD
CY2020Q3	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
CY2021Q3	us-gaap	Variable Lease Cost VariableLeaseCost	0	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	1375000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5060000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4208000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3177000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2047000	USD
CY2021Q3	cubi	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	1424000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	17291000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1473000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	15818000	USD
CY2021Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	1300000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	3800000	USD
CY2020Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	1200000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	4100000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y8M12D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0265
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0290
CY2021Q3	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	126311000	USD
CY2020Q4	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	104982000	USD
CY2021Q3	us-gaap	Direct Financing Lease Residual Value Of Leased Asset DirectFinancingLeaseResidualValueOfLeasedAsset	11609000	USD
CY2020Q4	us-gaap	Direct Financing Lease Residual Value Of Leased Asset DirectFinancingLeaseResidualValueOfLeasedAsset	12988000	USD
CY2021Q3	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	5366000	USD
CY2020Q4	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	1229000	USD
CY2021Q3	cubi	Direct Financing Lease Deferred Initial Direct Costs DirectFinancingLeaseDeferredInitialDirectCosts	441000	USD
CY2020Q4	cubi	Direct Financing Lease Deferred Initial Direct Costs DirectFinancingLeaseDeferredInitialDirectCosts	560000	USD
CY2021Q3	cubi	Federal Reserve Bank Payment Protection Program Liquidity Facility Advances Cares Act FederalReserveBankPaymentProtectionProgramLiquidityFacilityAdvancesCARESAct	0	USD
CY2021Q3	cubi	Cares Act Federal Reserve Bank Interest Rate CARESActFederalReserveBankInterestRate	0
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
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	0	USD
CY2021Q3	us-gaap	Direct Financing Lease Deferred Selling Profit DirectFinancingLeaseDeferredSellingProfit	7439000	USD
CY2020Q4	us-gaap	Direct Financing Lease Deferred Selling Profit DirectFinancingLeaseDeferredSellingProfit	11175000	USD
CY2021Q3	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	136288000	USD
CY2020Q4	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	108584000	USD
CY2021Q3	cubi	Operating Lease Investmentin Lease Gross OperatingLeaseInvestmentinLeaseGross	142488000	USD
CY2020Q4	cubi	Operating Lease Investmentin Lease Gross OperatingLeaseInvestmentinLeaseGross	131791000	USD
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	36123000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	28919000	USD
CY2021Q3	cubi	Operating Lease Deferred Initial Direct Costs OperatingLeaseDeferredInitialDirectCosts	937000	USD
CY2020Q4	cubi	Operating Lease Deferred Initial Direct Costs OperatingLeaseDeferredInitialDirectCosts	996000	USD
CY2021Q3	cubi	Operating Lease Net Investmentin Lease OperatingLeaseNetInvestmentinLease	107302000	USD
CY2020Q4	cubi	Operating Lease Net Investmentin Lease OperatingLeaseNetInvestmentinLease	103868000	USD
CY2021Q3	cubi	Net Investmentin Direct Financingand Operating Leases NetInvestmentinDirectFinancingandOperatingLeases	243590000	USD
CY2020Q4	cubi	Net Investmentin Direct Financingand Operating Leases NetInvestmentinDirectFinancingandOperatingLeases	212452000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	0	USD
CY2021Q3	cubi	Federal Home Loan Bank Advances Short Term Interest Rate FederalHomeLoanBankAdvancesShortTermInterestRate	0
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
CY2021Q3	us-gaap	Federal Funds Purchased FederalFundsPurchased	0	USD
CY2021Q3	cubi	Federal Funds Purchased Interest Rate FederalFundsPurchasedInterestRate	0
CY2020Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	250000000	USD
CY2020Q4	cubi	Federal Funds Purchased Interest Rate FederalFundsPurchasedInterestRate	0.0009
CY2021Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1100000000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	4415016000	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	217471000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	2789580000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	2729516000	USD
CY2021Q3	cubi	Federal Reserve Bank Maximum Amount Available FederalReserveBankMaximumAmountAvailable	186841000	USD
CY2020Q4	cubi	Federal Reserve Bank Maximum Amount Available FederalReserveBankMaximumAmountAvailable	223299000	USD
CY2021Q3	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	3613109000	USD
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	3363364000	USD
CY2020Q4	cubi	Federal Reserve Bank Paycheck Protection Program Liquidity Facility Cares Act FederalReserveBankPaycheckProtectionProgramLiquidityFacilityCARESAct	4400000000	USD
CY2021Q3	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	3235326	shares
CY2021Q3	cubi	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased Percent Of Outstanding Shares StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchasedPercentOfOutstandingShares	0.10
CY2021Q3	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P1Y
CY2021Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2021Q3	cubi	Preferred Stock Numberof Series Outstanding PreferredStockNumberofSeriesOutstanding	2	series
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	5700000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	9000000	shares
CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	137794000	USD
CY2021Q3	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1201160000	USD
CY2021Q3	cubi	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.10412
CY2021Q3	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	519125000	USD
CY2021Q3	cubi	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.04500
CY2021Q3	cubi	Common Equity Tier One Capital Requiredfor Basel Iii CommonEquityTierOneCapitalRequiredforBaselIII	807527000	USD
CY2021Q3	cubi	Tier One Common Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneCommonCapitalRequiredforBaselIIItoRiskWeightedAssets	0.07000
CY2021Q3	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1338953000	USD
CY2021Q3	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.11607
CY2021Q3	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	692166000	USD
CY2021Q3	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06000
CY2021Q3	cubi	Tier One Risk Based Capital Requiredfor Basel Iii TierOneRiskBasedCapitalRequiredforBaselIII	980569000	USD
CY2021Q3	cubi	Tier One Risk Based Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneRiskBasedCapitalRequiredforBaselIIItoRiskWeightedAssets	0.08500
CY2021Q3	us-gaap	Capital Capital	1572222000	USD
CY2021Q3	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.13629
CY2021Q3	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	922888000	USD
CY2021Q3	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08000
CY2021Q3	cubi	Capital Requiredfor Basel Iii CapitalRequiredforBaselIII	1211291000	USD
CY2021Q3	cubi	Capital Requiredfor Basel Ii Ito Risk Weighted Assets CapitalRequiredforBaselIIItoRiskWeightedAssets	0.10500
CY2021Q3	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1338953000	USD
CY2021Q3	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.07876
CY2021Q3	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	679974000	USD
CY2021Q3	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04000
CY2021Q3	cubi	Tier One Leverage Capital Requiredfor Basel Iii TierOneLeverageCapitalRequiredforBaselIII	679974000	USD
CY2021Q3	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	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
CY2021Q3	cubi	Capital Conservation Bufferto Risk Weighted Assets Year Fourand Thereafter CapitalConservationBuffertoRiskWeightedAssetsYearFourandThereafter	0.02500
	cubi	Loans Held For Sale Average Life From Purchase To Sale LoansHeldForSaleAverageLifeFromPurchaseToSale	P30D
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1052054000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	1052054000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1861697000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1861697000	USD
CY2021Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	29957000	USD
CY2021Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	29957000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15354084000	USD
CY2021Q3	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	15323107000	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	57184000	USD
CY2021Q3	cubi	Federal Home Loan Bank Stock And Federal Reserve Bank Stock Fair Value FederalHomeLoanBankStockAndFederalReserveBankStockFairValue	57184000	USD
CY2021Q3	us-gaap	Derivative Assets DerivativeAssets	34234000	USD
CY2021Q3	us-gaap	Derivative Assets DerivativeAssets	34234000	USD
CY2021Q3	us-gaap	Deposits Deposits	16971025000	USD
CY2021Q3	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	16971434000	USD
CY2021Q3	us-gaap	Other Borrowings OtherBorrowings	223151000	USD
CY2021Q3	cubi	Borrowings Fair Value Disclosure BorrowingsFairValueDisclosure	229582000	USD
CY2021Q3	us-gaap	Subordinated Debt SubordinatedDebt	181603000	USD
CY2021Q3	cubi	Subordinated Debt Fair Value Disclosure SubordinatedDebtFairValueDisclosure	200080000	USD
CY2021Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	34573000	USD
CY2021Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	34573000	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	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	852442000	USD
CY2020Q4	us-gaap	Other Borrowings OtherBorrowings	124037000	USD
CY2020Q4	cubi	Borrowings Fair Value Disclosure BorrowingsFairValueDisclosure	129120000	USD
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	181394000	USD
CY2020Q4	cubi	Subordinated Debt Fair Value Disclosure SubordinatedDebtFairValueDisclosure	193119000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	98164000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	98164000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	9117000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-24602000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-26972000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-8596000	USD
CY2021Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	-33200000	USD
	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	LOSS CONTINGENCIES<div style="margin-top:9pt;text-align:justify"><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:9pt;text-align:justify"><span style="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="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 </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%">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 partner institutions. Customers disagreed with the FPRD and appealed the asserted financial liabilities of $6.5 million, and a request for review was 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:115%">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 Stated Bankruptcy Court for the Central District of California. On October 28, 2020, the Trustee, as plaintiff, filed her amended adversary complaint (“Adversary Complaint”) against Customers 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 Customers Bank in the amount of $8.1 million in satisfaction of a Payroll Protection Program loan made by Customers Bank to the Debtor (the “PPP Loan Payment”). The Trustee seeks 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. The Bank intends to vigorously defend itself against the Trustee’s Adversary Complaint and is currently unable to reasonably determine the likelihood of loss nor estimate a possible range of loss.</span></div>

Files In Submission

Name	View Source	Status
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2021 Q4 Form 10-Q Financial Statement

#000148881321000168 Filed on November 08, 2021

Income Statement

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$CUBI Customers Bancorp, Inc. Stock $cubi

2021 Q4 Form 10-Q Financial Statement

#000148881321000168 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CUBI
Customers Bancorp, Inc. Stock $cubi