$CUBI
Customers Bancorp, Inc. Stock $cubi

$cubi Overview Financials Valuation SEC Filings Company Website

2023 Q4 Form 10-Q Financial Statement

#000148881323000099 Filed on November 09, 2023

Income Statement

Concept	2023 Q4	2023 Q3	2022 Q3
Revenue		$376.3M	$235.9M
YoY Change		59.52%	-2.86%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development		$15.67M	$19.59M
YoY Change		-20.02%	-7.96%
% of Gross Profit
Depreciation & Amortization	$7.587M	$7.600M	$6.700M
YoY Change	6.41%	13.43%	21.82%
% of Gross Profit
Operating Expenses		$15.67M	$19.59M
YoY Change		-20.02%	-7.96%
Operating Profit
YoY Change
Interest Expense		$176.6M	$76.88M
YoY Change		129.65%	234.88%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$83.89M	$110.2M	$81.81M
YoY Change	134.02%	34.73%	-46.28%
Income Tax	$21.80M	$23.47M	$17.90M
% Of Pretax Income	25.98%	21.29%	21.88%
Net Earnings	$58.22M	$86.76M	$63.91M
YoY Change	127.23%	35.74%	-44.92%
Net Earnings / Revenue		23.05%	27.09%
Basic Earnings Per Share		$2.65	$1.89
Diluted Earnings Per Share	$1.79	$2.58	$1.924M
COMMON SHARES
Basic Shares Outstanding	31.41M shares	31.29M shares	32.45M shares
Diluted Shares Outstanding		32.18M shares	33.23M shares

Balance Sheet

Concept	2023 Q4	2023 Q3	2022 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$3.846B	$3.420B	$404.5M
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	$7.371M	$7.789M	$6.610M
YoY Change	-18.33%	17.84%	-33.53%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$21.32B	$21.86B	$20.37B
YoY Change	2.01%	7.31%	6.59%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$248.4M	$204.0M	$287.9M
YoY Change	7.67%	-29.13%	-33.52%
Accrued Expenses	$18.05M	$19.00M	$19.72M
YoY Change	-5.24%	-3.65%	23.25%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$365.0M
YoY Change	-100.0%	-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$248.4M	$223.0M	$287.9M
YoY Change	7.67%	-22.53%	-35.89%
LONG-TERM LIABILITIES
Long-Term Debt	$306.1M	$306.0M	$305.4M
YoY Change	0.18%	0.2%	-24.59%
Other Long-Term Liabilities	$27.11M	$41.00M
YoY Change	-35.61%
Total Long-Term Liabilities	$306.1M	$347.0M	$305.4M
YoY Change	0.18%	13.62%	-24.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$248.4M	$223.0M	$287.9M
Total Long-Term Liabilities	$306.1M	$347.0M	$305.4M
Total Liabilities	$19.68B	$20.30B	$18.98B
YoY Change	0.95%	6.93%	6.49%
SHAREHOLDERS EQUITY
Retained Earnings	$1.160B	$1.101B
YoY Change	25.48%
Common Stock	$35.46M	$35.33M
YoY Change	1.28%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.638B	$1.562B	$1.387B
YoY Change
Total Liabilities & Shareholders Equity	$21.32B	$21.86B	$20.37B
YoY Change	2.01%	7.31%	6.59%

Cashflow Statement

Concept	2023 Q4	2023 Q3	2022 Q3
OPERATING ACTIVITIES
Net Income	$58.22M	$86.76M	$63.91M
YoY Change	127.23%	35.74%	-44.92%
Depreciation, Depletion And Amortization	$7.587M	$7.600M	$6.700M
YoY Change	6.41%	13.43%	21.82%
Cash From Operating Activities	-$118.4M	$136.1M	$109.0M
YoY Change	-59.99%	24.86%	-836.47%
INVESTING ACTIVITIES
Capital Expenditures	$20.56M	$5.800M	-$58.31M
YoY Change	-20.79%	-109.95%	611.13%
Acquisitions
YoY Change
Other Investing Activities	$1.181B	$402.9M	$73.27M
YoY Change	-730.46%	449.87%	-94.76%
Cash From Investing Activities	$1.161B	$397.1M	$14.96M
YoY Change	-644.08%	2554.59%	-98.92%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-615.8M	-268.4M	35.33M
YoY Change	-209.87%	-859.69%	-104.69%
NET CHANGE
Cash From Operating Activities	-118.4M	136.1M	109.0M
Cash From Investing Activities	1.161B	397.1M	14.96M
Cash From Financing Activities	-615.8M	-268.4M	35.33M
Net Change In Cash	426.4M	264.8M	159.3M
YoY Change	730.47%	66.24%	-74.37%
FREE CASH FLOW
Cash From Operating Activities	-$118.4M	$136.1M	$109.0M
Capital Expenditures	$20.56M	$5.800M	-$58.31M
Free Cash Flow	-$138.9M	$130.3M	$167.3M
YoY Change	-56.83%	-22.12%	-2635.02%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssets
CY2022Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilities
CY2023Q3	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	137063000	usd
CY2022Q4	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	998153000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	12463485000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	13144894000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	139213000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	130924000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	13423901000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15335435000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	126098000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	74196000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9025000	usd
CY2023Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	291670000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	338441000	usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2022Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	25.00
CY2023Q3	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	25.00
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	5700000	shares
CY2023Q3	us-gaap	Preferred Stock Value PreferredStockValue	137794000	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	137794000	usd
CY2023Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2023Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2023Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	35329690	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	35012250	shares
CY2023Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	31311254	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	32373697	shares
CY2023Q3	us-gaap	Common Stock Value CommonStockValue	35330000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	35012000	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	559346000	usd
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	149585000	usd
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	76283000	usd
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5463000	usd
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	8672000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1021445000	usd
	cubi	Interest Expense Federal Home Loan Bank Advances Short Term InterestExpenseFederalHomeLoanBankAdvancesShortTerm	61140000	usd
	cubi	Interest Expense Federal Home Loan Bank Advances Short Term InterestExpenseFederalHomeLoanBankAdvancesShortTerm	7000000	usd
	cubi	Interest Expense Federal Reserve Bank Advances Short Term InterestExpenseFederalReserveBankAdvancesShortTerm	0	usd
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	8067000	usd
	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	8067000	usd
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	10203000	usd
	us-gaap	Interest Expense InterestExpense	506502000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	514943000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	488583000	usd
	cubi	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal Including Portion Of Available For Sale Securities FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversalIncludingPortionOfAvailableForSaleSecurities	61088000	usd
	cubi	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal Including Portion Of Available For Sale Securities FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversalIncludingPortionOfAvailableForSaleSecurities	31850000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	453855000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	456733000	usd
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	19584000	usd
	cubi	Income From Loan Fees IncomeFromLoanFees	14290000	usd
	cubi	Income From Loan Fees IncomeFromLoanFees	8171000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	9617000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	13722000	usd
	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	3468000	usd
	cubi	Fees Mortgage Warehouse Lending FeesMortgageWarehouseLending	5443000	usd
	cubi	Gain Loss On Sale Of Mortgages And Other Loans GainLossOnSaleOfMortgagesAndOtherLoans	-1109000	usd
	cubi	Gain Loss On Sale Of Mortgages And Other Loans GainLossOnSaleOfMortgagesAndOtherLoans	3155000	usd
	cubi	Gain Loss On Sale Of Capital Call Lines Of Credit GainLossOnSaleOfCapitalCallLinesOfCredit	-5037000	usd
	cubi	Gain Loss On Sale Of Capital Call Lines Of Credit GainLossOnSaleOfCapitalCallLinesOfCredit	0	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	16755000	usd
CY2023Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	19222000	usd
CY2022Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	1137000	usd
CY2023Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	1300000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	4400000	usd
CY2022Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	1200000	usd
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y8M12D
CY2023Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0324
CY2023Q3	us-gaap	Direct Financing Lease Deferred Selling Profit DirectFinancingLeaseDeferredSellingProfit	6840000	usd
CY2023Q3	us-gaap	Direct Financing Lease Net Investment In Lease Excluding Accrued Interest Before Allowance For Credit Loss DirectFinancingLeaseNetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss	193830000	usd
CY2023Q3	cubi	Operating Lease Investmentin Lease Gross OperatingLeaseInvestmentinLeaseGross	264595000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	72512000	usd
CY2023Q3	cubi	Operating Lease Deferred Initial Direct Costs OperatingLeaseDeferredInitialDirectCosts	1270000	usd
CY2023Q3	cubi	Operating Lease Net Investmentin Lease OperatingLeaseNetInvestmentinLease	193353000	usd
CY2023Q3	cubi	Net Investmentin Direct Financingand Operating Leases NetInvestmentinDirectFinancingandOperatingLeases	387183000	usd
CY2023Q3	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	4758682000	usd
CY2023Q3	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	5824410000	usd
CY2023Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	3617946000	usd
CY2023Q3	us-gaap	Time Deposits TimeDeposits	3994326000	usd
CY2023Q3	us-gaap	Deposits Deposits	18195364000	usd
CY2023Q3	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	160400000	usd
CY2023Q3	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	4100000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssets
CY2023Q3	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilities
CY2023Q3	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	962566000	usd
CY2022Q4	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	1323312000	usd
CY2023Q3	us-gaap	Interest Receivable InterestReceivable	123984000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	123374000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	7789000	usd
CY2023Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	3629000	usd
CY2022Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	3629000	usd
CY2023Q3	us-gaap	Other Assets OtherAssets	358162000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	400135000	usd
CY2023Q3	us-gaap	Assets Assets	21857152000	usd
CY2022Q4	us-gaap	Assets Assets	20896112000	usd
CY2023Q3	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	4758682000	usd
CY2022Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	1885045000	usd
CY2023Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	13436682000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	16271908000	usd
CY2023Q3	us-gaap	Deposits Deposits	18195364000	usd
CY2022Q4	us-gaap	Deposits Deposits	18156953000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	1529839000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	800000000	usd
CY2023Q3	us-gaap	Other Borrowings OtherBorrowings	123775000	usd
CY2022Q4	us-gaap	Other Borrowings OtherBorrowings	123580000	usd
CY2023Q3	us-gaap	Subordinated Debt SubordinatedDebt	182161000	usd
CY2022Q4	us-gaap	Subordinated Debt SubordinatedDebt	181952000	usd
CY2023Q3	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	264406000	usd
CY2022Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	230666000	usd
CY2023Q3	us-gaap	Liabilities Liabilities	20295545000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	19493151000	usd
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	5700000	shares
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	551721000	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1101359000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	924134000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-149812000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-163096000	usd
CY2023Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	4018436	shares
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	2638553	shares
CY2023Q3	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	122410000	usd
CY2022Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	82604000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1561607000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1402961000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	21857152000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	20896112000	usd
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	757064000	usd
	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	526478000	usd
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	81819000	usd
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	4198000	usd
	us-gaap	Interest And Fee Income Loans And Leases Held For Sale InterestAndFeeIncomeLoansAndLeasesHeldForSale	27514000	usd
	us-gaap	Interest And Fee Income Loans And Leases Held For Sale InterestAndFeeIncomeLoansAndLeasesHeldForSale	95000	usd
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	4879000	usd
	us-gaap	Interest Expense InterestExpense	127143000	usd
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	27144000	usd
CY2023Q3	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	0	usd
CY2022Q3	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	-23465000	usd
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	0	usd
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	-23465000	usd
CY2023Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-429000	usd
CY2022Q3	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-2135000	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-429000	usd
	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-6227000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3949000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	4544000	usd
	us-gaap	Noninterest Income NoninterestIncome	51893000	usd
	us-gaap	Noninterest Income NoninterestIncome	24927000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	99310000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	83171000	usd
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	48663000	usd
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	66394000	usd
	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	22541000	usd
	cubi	Operating Leases Commercial Lease Depreciation OperatingLeasesCommercialLeaseDepreciation	16460000	usd
	us-gaap	Professional Fees ProfessionalFees	25357000	usd
	us-gaap	Professional Fees ProfessionalFees	20640000	usd
	us-gaap	Loan Processing Fee LoanProcessingFee	13296000	usd
	us-gaap	Loan Processing Fee LoanProcessingFee	10563000	usd
	us-gaap	Occupancy Net OccupancyNet	7750000	usd
	us-gaap	Occupancy Net OccupancyNet	9934000	usd
	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	21059000	usd
	cubi	Fdic Assessments Taxes And Regulatory Fees FdicAssessmentsTaxesAndRegulatoryFees	6530000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	2245000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1430000	usd
	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-4096000	usd
	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	14579000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	11088000	usd
	us-gaap	Noninterest Expense NoninterestExpense	258896000	usd
	us-gaap	Noninterest Expense NoninterestExpense	226210000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	246852000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	255450000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	58801000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	56127000	usd
	us-gaap	Net Income Loss NetIncomeLoss	188051000	usd
	us-gaap	Net Income Loss NetIncomeLoss	199323000	usd
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	10826000	usd
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	6544000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	192779000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	192779000	usd
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.63
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.89
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.72
	us-gaap	Net Income Loss NetIncomeLoss	188051000	usd
	us-gaap	Net Income Loss NetIncomeLoss	199323000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	14535000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-213532000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	3692000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-55518000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	429000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-9281000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	109000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-2413000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	-3700000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Before Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossBeforeTax	0	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	-939000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	0	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	13284000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-151146000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	13284000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-151146000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	201335000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	48177000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	1456652000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	86756000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18364000	usd
CY2023Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3803000	usd
CY2023Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3510000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	128000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1561607000	usd
CY2022Q2	us-gaap	Stockholders Equity StockholdersEquity	1353390000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	63912000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-31245000	usd
CY2022Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	2548000	usd
CY2022Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3336000	usd
CY2022Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	86000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1402961000	usd
	us-gaap	Net Income Loss NetIncomeLoss	188051000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	13284000	usd
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	10826000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9979000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-2036000	usd
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	39806000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1366217000	usd
	us-gaap	Net Income Loss NetIncomeLoss	199323000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-151146000	usd
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	6544000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10657000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-3756000	usd
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	27820000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	1386931000	usd
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	188051000	usd
	cubi	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal Including Portion Of Available For Sale Securities FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversalIncludingPortionOfAvailableForSaleSecurities	61088000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	24226000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	10048000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	21999000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	8859000	usd
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-197000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-429000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	124000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1362000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	344000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	2348000	usd
	cubi	Gain Loss On Settlement Of Cash Flow Hedges GainLossOnSettlementOfCashFlowHedges	-4630000	usd
	cubi	Gain Loss On Settlement Of Cash Flow Hedges GainLossOnSettlementOfCashFlowHedges	0	usd
	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	-439000	usd
	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	-350000	usd
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	-869000	usd
	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	4149000	usd
	cubi	Gain Loss On Sale Of Capital Call Lines Of Credit GainLossOnSaleOfCapitalCallLinesOfCredit	-5037000	usd
	cubi	Gain Loss On Sale Of Capital Call Lines Of Credit GainLossOnSaleOfCapitalCallLinesOfCredit	0	usd
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	0	usd
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	-23465000	usd
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	470318000	usd
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	28077000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	454867000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	44209000	usd
	cubi	Accretion Of Fair Values Discounts Net AccretionOfFairValuesDiscountsNet	-74016000	usd
	cubi	Accretion Of Fair Values Discounts Net AccretionOfFairValuesDiscountsNet	-49601000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	13722000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	243106000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	275022000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	228503000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	408046000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	175896000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	13631000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	4075000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	681633000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	929754000	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	73074000	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	usd
	cubi	Originationofmortgagewarehouseloans Originationofmortgagewarehouseloans	15385554000	usd
	cubi	Originationofmortgagewarehouseloans Originationofmortgagewarehouseloans	23568943000	usd
	cubi	Proceedsfrompayoffsofmortgagewarehouseloans Proceedsfrompayoffsofmortgagewarehouseloans	15766489000	usd
	cubi	Proceedsfrompayoffsofmortgagewarehouseloans Proceedsfrompayoffsofmortgagewarehouseloans	24247843000	usd
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-1586922000	usd
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	1639900000	usd
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	409503000	usd
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	136920000	usd
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	702409000	usd
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	368776000	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	56645000	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	11807000	usd
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	51667000	usd
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	6880000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	521000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	587000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	73000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	33000	usd
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	0	usd
	us-gaap	Proceeds From Sale Of Lease Receivables ProceedsFromSaleOfLeaseReceivables	2515000	usd
	us-gaap	Proceeds From Sale Of Lease Receivables ProceedsFromSaleOfLeaseReceivables	2889000	usd
	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	20257000	usd
	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	86797000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1997172000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1085108000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	36624000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	744514000	usd
	cubi	Proceeds From Repayments Of Short Term Debt From The Federal Home Loan Bank ProceedsFromRepaymentsOfShortTermDebtFromTheFederalHomeLoanBank	-300000000	usd
	cubi	Proceeds From Repayments Of Short Term Debt From The Federal Home Loan Bank ProceedsFromRepaymentsOfShortTermDebtFromTheFederalHomeLoanBank	-700000000	usd
	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	0	usd
	us-gaap	Increase Decrease In Federal Funds Purchased IncreaseDecreaseInFederalFundsPurchased	-290000000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	2565000000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	500000000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	1525000000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	0	usd
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	0	usd
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	100000000	usd
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	10823000	usd
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	6374000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	39806000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	27820000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2429000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4248000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	324000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	447000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	723890000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	696519000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	2964168000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-113567000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	455806000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	518032000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3419974000	usd
	cubi	Debt Securities Available For Sale Transfer To Held To Maturity Amount DebtSecuritiesAvailableForSaleTransferToHeldToMaturityAmount	0	usd
	cubi	Debt Securities Available For Sale Transfer To Held To Maturity Amount DebtSecuritiesAvailableForSaleTransferToHeldToMaturityAmount	500174000	usd
	cubi	Purchases Of Investment Securities Held To Maturity Upon Sale Of Consumer Installment Loans PurchasesOfInvestmentSecuritiesHeldToMaturityUponSaleOfConsumerInstallmentLoans	436841000	usd
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	309076000	usd
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	14377000	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 and Jacksonville, Florida; Wilmington and Charlotte, North Carolina; and nationally for certain loan and deposit products. The Bank has seven branches and provides commercial banking products, primarily loans and deposits. In addition, the 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; Wilmington and Charlotte, North Carolina; and other locations. The Bank also serves specialty niche businesses nationwide, including its commercial loans to mortgage companies, 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.</span></div>
CY2023Q3	cubi	Number Of Branches NumberOfBranches	7	branch
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	82953000	usd
CY2022Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	61364000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	192779000	usd
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31290581	shares
CY2023Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	884503	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32175084	shares
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.65
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.58
CY2023Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	2911234000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	3849000	usd
CY2023Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1594000	usd
CY2023Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	162251000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2746728000	usd
CY2023Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	26479000	usd
CY2023Q3	cubi	Investment Securitiesat Fair Value InvestmentSecuritiesatFairValue	2773207000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	3138534000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	578000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	442000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	177383000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2961015000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	26485000	usd
CY2022Q4	cubi	Investment Securitiesat Fair Value InvestmentSecuritiesatFairValue	2987500000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	19700000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	16700000	usd
CY2023Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	4100000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	4100000	usd
CY2022Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	126600000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	681600000	usd
CY2022Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	411000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	564000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	511000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2563000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	429000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	2135000	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	429000	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	8790000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-429000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-2135000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-429000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-6227000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	7500000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	7444000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	532269000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	488929000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	98461000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	82524000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	2911234000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2746728000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	285238000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	15183000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	2070331000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	135150000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	2355569000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	150333000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1585495000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	102076000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	901562000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	75307000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	2487057000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	177383000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	25	security
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	155	security
CY2023Q3	cubi	Number Of Asset Backed Securities With Deterioration In Future Estimated Cash Flows NumberOfAssetBackedSecuritiesWithDeteriorationInFutureEstimatedCashFlows	4	assetbackedsecurity
CY2023Q3	cubi	Number Of Corporate Notes With Deterioration In Future Estimated Cash Flows NumberOfCorporateNotesWithDeteriorationInFutureEstimatedCashFlows	12	corporatenote
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	180	security
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	180	security
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	156	security
CY2023Q3	cubi	Number Of Asset Backed Securities With Deterioration In Future Estimated Cash Flows NumberOfAssetBackedSecuritiesWithDeteriorationInFutureEstimatedCashFlows	4	assetbackedsecurity
CY2023Q3	cubi	Number Of Corporate Notes With Deterioration In Future Estimated Cash Flows NumberOfCorporateNotesWithDeteriorationInFutureEstimatedCashFlows	12	corporatenote
CY2022Q3	cubi	Number Of Asset Backed Securities With Deterioration In Future Estimated Cash Flows NumberOfAssetBackedSecuritiesWithDeteriorationInFutureEstimatedCashFlows	4	assetbackedsecurity
CY2023Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	3439000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	0	usd
CY2023Q3	cubi	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Decrease On Previously Impaired Securities DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossDecreaseOnPreviouslyImpairedSecurities	274000	usd
CY2022Q3	cubi	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Decrease On Previously Impaired Securities DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossDecreaseOnPreviouslyImpairedSecurities	158000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossSecuritiesSold	391000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossSecuritiesSold	0	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	3849000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	253000	usd
	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	2485000	usd
	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	253000	usd
	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	1488000	usd
	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	0	usd
	cubi	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Decrease On Previously Impaired Securities DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossDecreaseOnPreviouslyImpairedSecurities	311000	usd
	cubi	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Decrease On Previously Impaired Securities DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossDecreaseOnPreviouslyImpairedSecurities	0	usd
	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossSecuritiesSold	391000	usd
	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossSecuritiesSold	0	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	1178370000	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	1178370000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2023Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	62794000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1115576000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	840259000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	840259000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	46446000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	793813000	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	2700000	usd
	cubi	Gain Loss On Sale Of Financing Receivables Held For Sale GainLossOnSaleOfFinancingReceivablesHeldForSale	-1200000	usd
CY2023Q3	us-gaap	Servicing Asset ServicingAsset	3800000	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Without Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityWithoutSingleMaturityDate	1178370000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	1115576000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	1178370000	usd
CY2023Q3	cubi	Multi Family Commercial Loans Held For Sale MultiFamilyCommercialLoansHeldForSale	0	usd
CY2022Q4	cubi	Multi Family Commercial Loans Held For Sale MultiFamilyCommercialLoansHeldForSale	4079000	usd
CY2023Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Commercial Real Estate1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupCommercialRealEstate1	0	usd
CY2022Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Commercial Real Estate1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupCommercialRealEstate1	4079000	usd
CY2023Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Home Equity1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerHomeEquity1	0	usd
CY2022Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Home Equity1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerHomeEquity1	507000	usd
CY2023Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage1	1005000	usd
CY2022Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Mortgage1 LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage1	322000	usd
CY2023Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Personal Installment Loans LoansReceivableHeldForSaleNetNotPartOfDisposalGroupPersonalInstallmentLoans	124848000	usd
CY2022Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Personal Installment Loans LoansReceivableHeldForSaleNetNotPartOfDisposalGroupPersonalInstallmentLoans	133801000	usd
CY2023Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Other Installment Loans LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerOtherInstallmentLoans	0	usd
CY2022Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer Other Installment Loans LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumerOtherInstallmentLoans	189603000	usd
CY2023Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Other Installment Loans LoansReceivableHeldForSaleNetNotPartOfDisposalGroupOtherInstallmentLoans	24515000	usd
CY2022Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Other Installment Loans LoansReceivableHeldForSaleNetNotPartOfDisposalGroupOtherInstallmentLoans	0	usd
CY2023Q3	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumer	150368000	usd
CY2022Q4	cubi	Loans Receivable Held For Sale Net Not Part Of Disposal Group Consumer LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumer	324233000	usd
CY2023Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	150368000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	328312000	usd
CY2023Q3	cubi	Loans Held For Sale Including Nonperforming Loans LoansHeldForSaleIncludingNonperformingLoans	200000	usd
CY2022Q4	cubi	Loans Held For Sale Including Nonperforming Loans LoansHeldForSaleIncludingNonperformingLoans	6200000	usd
CY2023Q3	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	962566000	usd
CY2022Q4	cubi	Loansreceivablemortgagewarehouse Loansreceivablemortgagewarehouse	1323312000	usd
CY2023Q3	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	137063000	usd
CY2022Q4	cubi	Financing Receivable Before Allowance For Credit Loss Payment Protection Program Cares Act FinancingReceivableBeforeAllowanceForCreditLossPaymentProtectionProgramCARESAct	998153000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	12463485000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	13144894000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	139213000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	130924000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	13423901000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15335435000	usd
CY2023Q3	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-35800000	usd
CY2022Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-21500000	usd
CY2023Q3	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	96800000	usd
CY2022Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	105500000	usd
	cubi	Loans Held For Sale Average Life From Purchase To Sale LoansHeldForSaleAverageLifeFromPurchaseToSale	P30D
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	12463485000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	13144894000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	600000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	1900000	usd
CY2023Q3	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	195800000	usd
CY2022Q4	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	8300000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	17180000	usd
CY2023Q3	cubi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	12469000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	29649000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	12564000	usd
CY2022Q4	cubi	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	11967000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	24531000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	139656000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	30020000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	12522000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	17055000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	139213000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	130924000	usd
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	2576000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	69713000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	18000000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	57426000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	139213000	usd
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	156530000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	21484000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2987000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	-7836000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	130197000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	137804000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	45935000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	6731000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	31597000	usd
CY2023Q2	cubi	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase Excluding Charge Offs FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncreaseExcludingChargeOffs	8700000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	139200000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Period Increase Decrease FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossPeriodIncreaseDecrease	8300000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	130900000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Modified Period FinancingReceivableExcludingAccruedInterestModifiedPeriod	4200000	usd
CY2023Q3	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Modified Past12 Months FinancingReceivableExcludingAccruedInterestModifiedPast12Months	11864000	usd
CY2022Q4	cubi	Loans Receivables Gross Troubled Debt Restructurings LoansReceivablesGrossTroubledDebtRestructurings	16800000	usd
CY2022Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	71	loan
CY2022Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	739000	usd
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	184	loan
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2403000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0	usd
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	36	loan
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	585000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1280528000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	4853685000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	1613532000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	670215000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	480416000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1239192000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	2105647000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	220270000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	12463485000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	2125000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	7365000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	5728000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	10102000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	2078000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	2622000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Writeoff FinancingReceivableExcludingAccruedInterestRevolvingWriteoff	0	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan Writeoff FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff	0	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	30020000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff	5613000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff	17406000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff	18242000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff	13221000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff	5568000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year Writeoff FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff	9663000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Writeoff FinancingReceivableExcludingAccruedInterestRevolvingWriteoff	0	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan Writeoff FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff	0	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	69713000	usd
CY2023Q2	cubi	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase Excluding Charge Offs FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncreaseExcludingChargeOffs	8700000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	6146506000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1911220000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	803531000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	570940000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	322745000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1176989000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	2212963000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	0	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	13144894000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Purchase FinancingReceivableExcludingAccruedInterestPurchase	101735000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Purchase FinancingReceivableExcludingAccruedInterestPurchase	137814000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Purchase FinancingReceivableExcludingAccruedInterestPurchase	750400000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Purchase FinancingReceivableExcludingAccruedInterestPurchase	368776000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest Sale And Reclassification To Held For Sale FinancingReceivableExcludingAccruedInterestSaleAndReclassificationToHeldForSale	12396000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Sale And Reclassification To Held For Sale FinancingReceivableExcludingAccruedInterestSaleAndReclassificationToHeldForSale	502201000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Sale And Reclassification To Held For Sale FinancingReceivableExcludingAccruedInterestSaleAndReclassificationToHeldForSale	535832000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Sale And Reclassification To Held For Sale FinancingReceivableExcludingAccruedInterestSaleAndReclassificationToHeldForSale	536920000	usd
CY2023Q3	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	1.000
CY2022Q3	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	0.999
	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	0.877
	cubi	Loans Heldforinvestment Purchase Priceasa Percentageof Loans Outstanding LoansHeldforinvestmentPurchasePriceasaPercentageofLoansOutstanding	0.987
CY2023Q3	cubi	Gain Loss On Sale Of Loans Held For Investment And Loans Held For Sale GainLossOnSaleOfLoansHeldForInvestmentAndLoansHeldForSale	-200000	usd
CY2022Q3	cubi	Gain Loss On Sale Of Mortgages And Other Loans GainLossOnSaleOfMortgagesAndOtherLoans	100000	usd
	cubi	Gain Loss On Sale Of Loans Held For Investment And Loans Held For Sale GainLossOnSaleOfLoansHeldForInvestmentAndLoansHeldForSale	200000	usd
	cubi	Gain Loss On Sale Of Mortgages And Other Loans GainLossOnSaleOfMortgagesAndOtherLoans	3200000	usd
CY2022Q3	cubi	Financing Receivables Sold Carrying Amount FinancingReceivablesSoldCarryingAmount	521800000	usd
	cubi	Financing Receivables Sold Carrying Amount FinancingReceivablesSoldCarryingAmount	521800000	usd
CY2022Q3	cubi	Gain Loss On Sale Of Financing Receivables Held For Investment GainLossOnSaleOfFinancingReceivablesHeldForInvestment	-23500000	usd
	cubi	Gain Loss On Sale Of Financing Receivables Held For Investment GainLossOnSaleOfFinancingReceivablesHeldForInvestment	-23500000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P10Y
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	16133000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	19046000	usd
CY2023Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	1260000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	3775000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	3352000	usd
CY2023Q3	us-gaap	Variable Lease Cost VariableLeaseCost	0	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	0	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	0	usd
CY2022Q3	us-gaap	Variable Lease Cost VariableLeaseCost	0	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	1334000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4786000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3745000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2977000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2469000	usd
CY2023Q3	cubi	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	5625000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	20936000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1714000	usd
CY2023Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	19222000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	3600000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Remainder Of Fiscal Year SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear	11562000	usd
CY2023Q3	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	38612000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y1M6D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0285
CY2023Q3	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	175931000	usd
CY2022Q4	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	140182000	usd
CY2023Q3	us-gaap	Direct Financing Lease Residual Value Of Leased Asset DirectFinancingLeaseResidualValueOfLeasedAsset	14211000	usd
CY2022Q4	us-gaap	Direct Financing Lease Residual Value Of Leased Asset DirectFinancingLeaseResidualValueOfLeasedAsset	12370000	usd
CY2023Q3	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	9551000	usd
CY2022Q4	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	7555000	usd
CY2023Q3	cubi	Direct Financing Lease Deferred Initial Direct Costs DirectFinancingLeaseDeferredInitialDirectCosts	977000	usd
CY2022Q4	cubi	Direct Financing Lease Deferred Initial Direct Costs DirectFinancingLeaseDeferredInitialDirectCosts	667000	usd
CY2022Q4	us-gaap	Direct Financing Lease Deferred Selling Profit DirectFinancingLeaseDeferredSellingProfit	3404000	usd
CY2022Q4	us-gaap	Direct Financing Lease Net Investment In Lease Excluding Accrued Interest Before Allowance For Credit Loss DirectFinancingLeaseNetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss	157370000	usd
CY2022Q4	cubi	Operating Lease Investmentin Lease Gross OperatingLeaseInvestmentinLeaseGross	248454000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	52585000	usd
CY2022Q4	cubi	Operating Lease Deferred Initial Direct Costs OperatingLeaseDeferredInitialDirectCosts	1461000	usd
CY2022Q4	cubi	Operating Lease Net Investmentin Lease OperatingLeaseNetInvestmentinLease	197330000	usd
CY2022Q4	cubi	Net Investmentin Direct Financingand Operating Leases NetInvestmentinDirectFinancingandOperatingLeases	354700000	usd
CY2023Q3	us-gaap	Lessor Operating Lease Payments To Be Received Remainder Of Fiscal Year LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear	9705000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Next Twelve Months SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths	46214000	usd
CY2023Q3	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	34976000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Two Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears	36992000	usd
CY2023Q3	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	39906000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Three Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears	29175000	usd
CY2023Q3	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	29824000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Four Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears	24254000	usd
CY2023Q3	cubi	Lessor Operating Lease Payment To Be Received After Year Four LessorOperatingLeasePaymentToBeReceivedAfterYearFour	69025000	usd
CY2023Q3	cubi	Sales Type And Direct Financing Leases Lease Receivable To Be Received After Year Four SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour	28840000	usd
CY2023Q3	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	222048000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived	177037000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Undiscounted Excess Amount SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount	1106000	usd
CY2023Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable SalesTypeAndDirectFinancingLeasesLeaseReceivable	175931000	usd
CY2022Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	1885045000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	8476027000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	3546015000	usd
CY2022Q4	us-gaap	Time Deposits TimeDeposits	4249866000	usd
CY2022Q4	us-gaap	Deposits Deposits	18156953000	usd
CY2023Q3	us-gaap	Time Deposit Maturities Remainder Of Fiscal Year TimeDepositMaturitiesRemainderOfFiscalYear	864722000	usd
CY2023Q3	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	2457137000	usd
CY2023Q3	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	165024000	usd
CY2023Q3	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	360201000	usd
CY2023Q3	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	59783000	usd
CY2023Q3	cubi	Time Deposit Maturities After Year Four TimeDepositMaturitiesAfterYearFour	87459000	usd
CY2023Q3	us-gaap	Time Deposits TimeDeposits	3994326000	usd
CY2022Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	85500000	usd
CY2022Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	3700000	usd
CY2023Q3	cubi	Deposits State And Municipal Secured By Collateral DepositsStateAndMunicipalSecuredByCollateral	591300000	usd
CY2023Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	0	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	300000000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	250000000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0344
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	200000000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate	0.0445
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	540000000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0.0554
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate	450000000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Three To Four Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate	0.0370
CY2023Q3	cubi	Federal Home Loan Bank Advance Maturity After Year Four FederalHomeLoanBankAdvanceMaturityAfterYearFour	100000000	usd
CY2023Q3	cubi	Federal Home Loan Bank Advance Maturity Average Interest Rate After Year Four FederalHomeLoanBankAdvanceMaturityAverageInterestRateAfterYearFour	0.0419
CY2023Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	1540000000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	3393013000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	3241120000	usd
CY2023Q3	cubi	Federal Reserve Bank Maximum Amount Available FederalReserveBankMaximumAmountAvailable	5013377000	usd
CY2022Q4	cubi	Federal Reserve Bank Maximum Amount Available FederalReserveBankMaximumAmountAvailable	2510189000	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
CY2023Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1379883	shares
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	39800000	usd
CY2022Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	664145	shares
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	27800000	usd
CY2022Q4	cubi	Preferred Stock Numberof Series Outstanding PreferredStockNumberofSeriesOutstanding	2	series
CY2023Q3	cubi	Preferred Stock Numberof Series Outstanding PreferredStockNumberofSeriesOutstanding	2	series
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	5700000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	5700000	shares
CY2023Q3	us-gaap	Preferred Stock Value PreferredStockValue	137794000	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	137794000	usd
CY2023Q3	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1596157000	usd
CY2023Q3	cubi	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.11305
CY2023Q3	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	635353000	usd
CY2023Q3	cubi	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.04500
CY2023Q3	cubi	Common Equity Tier One Capital Requiredfor Basel Iii CommonEquityTierOneCapitalRequiredforBaselIII	988327000	usd
CY2023Q3	cubi	Tier One Common Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneCommonCapitalRequiredforBaselIIItoRiskWeightedAssets	0.07000
CY2023Q3	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1733950000	usd
CY2023Q3	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.12281
CY2023Q3	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	847137000	usd
CY2023Q3	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06000
CY2023Q3	cubi	Tier One Risk Based Capital Requiredfor Basel Iii TierOneRiskBasedCapitalRequiredforBaselIII	1200111000	usd
CY2023Q3	cubi	Tier One Risk Based Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneRiskBasedCapitalRequiredforBaselIIItoRiskWeightedAssets	0.08500
CY2023Q3	us-gaap	Capital Capital	2015526000	usd
CY2023Q3	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.14275
CY2023Q3	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	1129516000	usd
CY2023Q3	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08000
CY2023Q3	cubi	Capital Requiredfor Basel Iii CapitalRequiredforBaselIII	1482490000	usd
CY2023Q3	cubi	Capital Requiredfor Basel Ii Ito Risk Weighted Assets CapitalRequiredforBaselIIItoRiskWeightedAssets	0.10500
CY2023Q3	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1733950000	usd
CY2023Q3	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.07805
CY2023Q3	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	888675000	usd
CY2023Q3	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04000
CY2023Q3	cubi	Tier One Leverage Capital Requiredfor Basel Iii TierOneLeverageCapitalRequiredforBaselIII	888675000	usd
CY2023Q3	cubi	Tier One Leverage Capital Requiredfor Basel Ii Ito Average Assets TierOneLeverageCapitalRequiredforBaselIIItoAverageAssets	0.04000
CY2022Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	1470837000	usd
CY2022Q4	cubi	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.09637
CY2022Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	686838000	usd
CY2022Q4	cubi	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.04500
CY2022Q4	cubi	Common Equity Tier One Capital Requiredfor Basel Iii CommonEquityTierOneCapitalRequiredforBaselIII	1068415000	usd
CY2022Q4	cubi	Tier One Common Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneCommonCapitalRequiredforBaselIIItoRiskWeightedAssets	0.07000
CY2022Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1608630000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.10539
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	915784000	usd
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06000
CY2022Q4	cubi	Tier One Risk Based Capital Requiredfor Basel Iii TierOneRiskBasedCapitalRequiredforBaselIII	1297361000	usd
CY2022Q4	cubi	Tier One Risk Based Capital Requiredfor Basel Ii Ito Risk Weighted Assets TierOneRiskBasedCapitalRequiredforBaselIIItoRiskWeightedAssets	0.08500
CY2022Q4	us-gaap	Capital Capital	1862089000	usd
CY2022Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.12200
CY2022Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	1221045000	usd
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08000
CY2022Q4	cubi	Capital Requiredfor Basel Iii CapitalRequiredforBaselIII	1602622000	usd
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CY2022Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1608630000	usd
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CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	839547000	usd
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CY2022Q4	cubi	Tier One Leverage Capital Requiredfor Basel Iii TierOneLeverageCapitalRequiredforBaselIII	839547000	usd
CY2022Q4	cubi	Tier One Leverage Capital Requiredfor Basel Ii Ito Average Assets TierOneLeverageCapitalRequiredforBaselIIItoAverageAssets	0.04000
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	cubi	Loans Held For Sale Number Of Days Held Prior To Sale LoansHeldForSaleNumberOfDaysHeldPriorToSale	P90D
	cubi	Loans Held For Sale Average Life From Purchase To Sale LoansHeldForSaleAverageLifeFromPurchaseToSale	P30D
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	3419974000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	3419974000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2746728000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2746728000	usd
CY2023Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	1178370000	usd
CY2023Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1115576000	usd
CY2023Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	150368000	usd
CY2023Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	150368000	usd
CY2023Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	13423901000	usd
CY2023Q3	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	13052491000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	126098000	usd
CY2023Q3	cubi	Federal Home Loan Bank Stock And Federal Reserve Bank Stock Fair Value FederalHomeLoanBankStockAndFederalReserveBankStockFairValue	126098000	usd
CY2023Q3	us-gaap	Derivative Assets DerivativeAssets	28475000	usd
CY2023Q3	us-gaap	Derivative Assets DerivativeAssets	28475000	usd
CY2023Q3	us-gaap	Deposits Deposits	18195364000	usd
CY2023Q3	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	18171737000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	1529839000	usd
CY2023Q3	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	1507761000	usd
CY2023Q3	us-gaap	Other Borrowings OtherBorrowings	123775000	usd
CY2023Q3	cubi	Borrowings Fair Value Disclosure BorrowingsFairValueDisclosure	103388000	usd
CY2023Q3	us-gaap	Subordinated Debt SubordinatedDebt	182161000	usd
CY2023Q3	cubi	Subordinated Debt Fair Value Disclosure SubordinatedDebtFairValueDisclosure	160712000	usd
CY2023Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	41433000	usd
CY2023Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	41433000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	455806000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	455806000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2961015000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2961015000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	840259000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	793813000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	328312000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	328312000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	15335435000	usd
CY2022Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	14890823000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	74196000	usd
CY2022Q4	cubi	Federal Home Loan Bank Stock And Federal Reserve Bank Stock Fair Value FederalHomeLoanBankStockAndFederalReserveBankStockFairValue	74196000	usd
CY2022Q4	us-gaap	Derivative Assets DerivativeAssets	44435000	usd
CY2022Q4	us-gaap	Derivative Assets DerivativeAssets	44435000	usd
CY2022Q4	us-gaap	Deposits Deposits	18156953000	usd
CY2022Q4	us-gaap	Deposits Fair Value Disclosure DepositsFairValueDisclosure	18127338000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	800000000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Borrowings Fair Value Disclosure FederalHomeLoanBankBorrowingsFairValueDisclosure	781113000	usd
CY2022Q4	us-gaap	Other Borrowings OtherBorrowings	123580000	usd
CY2022Q4	cubi	Borrowings Fair Value Disclosure BorrowingsFairValueDisclosure	108081000	usd
CY2022Q4	us-gaap	Subordinated Debt SubordinatedDebt	181952000	usd
CY2022Q4	cubi	Subordinated Debt Fair Value Disclosure SubordinatedDebtFairValueDisclosure	168441000	usd
CY2022Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	42106000	usd
CY2022Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	42106000	usd
CY2023Q3	cubi	Derivative Net Asset Position Aggregate Fair Value DerivativeNetAssetPositionAggregateFairValue	28400000	usd
CY2023Q3	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	30300000	usd
	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	LOSS CONTINGENCIESLoss 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.
CY2023Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
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CY2023Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false

Files In Submission

Name	View Source	Status
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$CUBI
Customers Bancorp, Inc. Stock $cubi

2023 Q4 Form 10-Q Financial Statement

#000148881323000099 Filed on November 09, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CUBI Customers Bancorp, Inc. Stock $cubi

2023 Q4 Form 10-Q Financial Statement

#000148881323000099 Filed on November 09, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CUBI
Customers Bancorp, Inc. Stock $cubi