XML 124 R90.htm IDEA: XBRL DOCUMENT
v3.22.2

Derivative Instruments and Hedging Activities - Additional Information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 USD ($) derivative | Jun. 30, 2021 USD ($) derivative | Jun. 30, 2022 USD ($) derivative | Jun. 30, 2021 USD ($) derivative | Dec. 31, 2021 USD ($) derivative
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, net liability position, aggregate fair value | $ 14,400 |  | $ 14,400 |  |
Cash collateral received | 15,900 |  | $ 15,900 |  |
Minimum |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative expiration period |  |  | 30 days |  |
Maximum |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative expiration period |  |  | 60 days |  |
Not Designated as Hedging Instrument | Residential mortgage loan commitments |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Aggregate notional amount | 5,000 |  | $ 5,000 |  | $ 8,200
Interest Rate Contract |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Cash collateral received | $ 14,398 |  | $ 14,398 |  | $ 0
Interest Rate Contract | Derivative Designated as Hedging Instrument | Cash Flow Hedges |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Number of interest rate derivatives terminated | derivative |  |  |  | 4 |
Aggregate notional amount, terminated |  |  |  | $ 850,000 |
Reclassification of realized losses from AOCI, discontinuation of cash flow hedge |  |  |  | $ 25,900 |
Number of outstanding interest rate derivatives | derivative | 0 |  | 0 |  | 0
Interest Rate Contract | Derivative Designated as Hedging Instrument | Fair Value Hedging |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Number of interest rate derivatives terminated | derivative | 7 | 1 | 9 | 8 |
Aggregate notional amount, terminated | $ 31,500 | $ 5,000 | $ 48,000 | $ 191,800 |
Number of outstanding interest rate derivatives | derivative | 7 |  | 7 |  | 16
Aggregate notional amount | $ 32,500 |  | $ 32,500 |  | $ 80,500
Interest rate swaps | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Aggregate notional amount | $ 1,400,000 |  | $ 1,400,000 |  | $ 1,400,000
Number of derivative instruments held | derivative | 151 |  | 151 |  | 153
Interest rate caps | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Aggregate notional amount | $ 243,800 |  | $ 243,800 |  | $ 264,700
Number of derivative instruments held | derivative | 12,000 |  | 12,000 |  | 14,000
Credit contracts | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Aggregate notional amount | $ 143,800 |  | $ 143,800 |  | $ 129,900

X
- Definition Derivative, Net Asset Position, Aggregate Fair Value + References No definition available. + Details
Name: | cubi_DerivativeNetAssetPositionAggregateFairValue
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Derivative, Notional Amount, Terminated + References No definition available. + Details
Name: | cubi_DerivativeNotionalAmountTerminated
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of Interest Rate Derivatives Terminated + References No definition available. + Details
Name: | cubi_NumberOfInterestRateDerivativesTerminated
Namespace Prefix: | cubi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226038-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226016-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41678-113959 + Details
Name: | us-gaap_DerivativeCollateralObligationToReturnCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of derivative instruments of a particular group held by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 + Details
Name: | us-gaap_DerivativeNumberOfInstrumentsHeld
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DerivativeRemainingMaturity1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 + Details
Name: | us-gaap_NumberOfInterestRateDerivativesHeld
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount, before tax, of reclassification from accumulated other comprehensive income (AOCI) for gain (loss) from discontinuance of cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeReclassificationForDiscontinuanceBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=cubi_ResidentialMortgageLoansCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_FairValueHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateCapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CreditRiskContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |