XML 132 R105.htm IDEA: XBRL DOCUMENT v3.10.0.1

Disclosures about Fair Value of Financial Instruments - Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring and Non-recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Measured at Fair Value on a Nonrecurring Basis:
Impaired loans reserve	$ 845	$ 1,451
Impaired loans, net of reserves
Measured at Fair Value on a Nonrecurring Basis:
Impaired loans reserve	845	1,451
Fair Value, Measurements, Recurring
Assets
Assets, Fair Value Disclosure	2,086,632	2,276,417
Fair Value, Measurements, Recurring | Derivatives
Assets
Assets, Fair Value Disclosure	14,693	9,752
Measured at Fair Value on a Nonrecurring Basis:
Financial and Nonfinancial Liabilities, Fair Value Disclosure	16,286	10,074
Fair Value, Measurements, Recurring | Loans held for sale – fair value option
Assets
Assets, Fair Value Disclosure	1,507	1,886
Fair Value, Measurements, Recurring | Loans receivable, mortgage warehouse – fair value option
Assets
Assets, Fair Value Disclosure	1,405,420	1,793,408
Fair Value, Measurements, Recurring | Available-for-sale Securities | Agency-guaranteed residential mortgage-backed securities
Assets
Assets, Fair Value Disclosure	305,374	183,458
Fair Value, Measurements, Recurring | Available-for-sale Securities | Agency-guaranteed commercial real estate mortgage-backed securities
Assets
Assets, Fair Value Disclosure		238,472
Fair Value, Measurements, Recurring | Available-for-sale Securities | Corporate notes
Assets
Assets, Fair Value Disclosure	357,920	46,089
Fair Value, Measurements, Recurring | Available-for-sale Securities | Equity securities
Assets
Assets, Fair Value Disclosure	1,718	3,352
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Assets, Fair Value Disclosure	1,718	3,352
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Derivatives
Assets
Assets, Fair Value Disclosure	0	0
Measured at Fair Value on a Nonrecurring Basis:
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held for sale – fair value option
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans receivable, mortgage warehouse – fair value option
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Available-for-sale Securities | Agency-guaranteed residential mortgage-backed securities
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Available-for-sale Securities | Agency-guaranteed commercial real estate mortgage-backed securities
Assets
Assets, Fair Value Disclosure		0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Available-for-sale Securities | Corporate notes
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Available-for-sale Securities | Equity securities
Assets
Assets, Fair Value Disclosure	1,718	3,352
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Assets, Fair Value Disclosure	2,084,845	2,273,005
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Derivatives
Assets
Assets, Fair Value Disclosure	14,624	9,692
Measured at Fair Value on a Nonrecurring Basis:
Financial and Nonfinancial Liabilities, Fair Value Disclosure	16,286	10,074
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Loans held for sale – fair value option
Assets
Assets, Fair Value Disclosure	1,507	1,886
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Loans receivable, mortgage warehouse – fair value option
Assets
Assets, Fair Value Disclosure	1,405,420	1,793,408
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Available-for-sale Securities | Agency-guaranteed residential mortgage-backed securities
Assets
Assets, Fair Value Disclosure	305,374	183,458
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Available-for-sale Securities | Agency-guaranteed commercial real estate mortgage-backed securities
Assets
Assets, Fair Value Disclosure		238,472
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Available-for-sale Securities | Corporate notes
Assets
Assets, Fair Value Disclosure	357,920	46,089
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Available-for-sale Securities | Equity securities
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets
Assets, Fair Value Disclosure	69	60
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Derivatives
Assets
Assets, Fair Value Disclosure	69	60
Measured at Fair Value on a Nonrecurring Basis:
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Loans held for sale – fair value option
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Loans receivable, mortgage warehouse – fair value option
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Available-for-sale Securities | Agency-guaranteed residential mortgage-backed securities
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Available-for-sale Securities | Agency-guaranteed commercial real estate mortgage-backed securities
Assets
Assets, Fair Value Disclosure		0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Available-for-sale Securities | Corporate notes
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Available-for-sale Securities | Equity securities
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring
Assets
Assets, Fair Value Disclosure	11,497	15,351
Fair Value, Measurements, Nonrecurring | Impaired loans, net of reserves
Assets
Assets, Fair Value Disclosure	10,876	13,902
Fair Value, Measurements, Nonrecurring | Other real estate owned
Assets
Assets, Fair Value Disclosure	621	1,449
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Impaired loans, net of reserves
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate owned
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) | Impaired loans, net of reserves
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) | Other real estate owned
Assets
Assets, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Assets
Assets, Fair Value Disclosure	11,497	15,351
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Impaired loans, net of reserves
Assets
Assets, Fair Value Disclosure	10,876	13,902
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Other real estate owned
Assets
Assets, Fair Value Disclosure	$ 621	$ 1,449

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

+ Details

Name:	us-gaap_AssetsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of allowance for credit losses related to recorded investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Fair value of financial and nonfinancial obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

+ Details

Name:	us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=cubi_ImpairedLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_DerivativeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=cubi_LoansHeldForSaleFairValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=cubi_LoansReceivableFairValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_AvailableforsaleSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CorporateNoteSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=cubi_OtherRealEstateOwnedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: