XML 70 R58.htm IDEA: XBRL DOCUMENT
v3.25.3

LOANS HELD FOR SALE - Composition of Loans Held for Sale (Detail) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Receivable, Held-for-Sale [Abstract] |  |
Commercial real estate non-owner occupied loans, at lower of cost or fair value | $ 4,700 | $ 0
Total commercial loans held for sale | 4,700 | 0
Residential mortgage loans, at fair value | 2,229 | 1,836
Personal installment loans, at lower of cost or fair value | 23,728 | 40,903
Other installment loans, at fair value | 240 | 162,055
Total consumer loans held for sale | 26,197 | 204,794
Loans held for sale (includes $2,469 and $163,891, respectively, at fair value) | $ 30,897 | $ 204,794

X
- Definition Commercial Real Estate Non-Owner Occupied Loans, Held-for-Sale + References No definition available. + Details
Name: | cubi_CommercialRealEstateNonOwnerOccupiedLoansHeldForSale
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Commercial, Real Estate1 + References No definition available. + Details
Name: | cubi_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupCommercialRealEstate1
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Consumer + References No definition available. + Details
Name: | cubi_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupConsumer
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Mortgage1 + References No definition available. + Details
Name: | cubi_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupMortgage1
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Other Installment Loans + References No definition available. + Details
Name: | cubi_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupOtherInstallmentLoans
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Personal Installment Loans + References No definition available. + Details
Name: | cubi_LoansReceivableHeldForSaleNetNotPartOfDisposalGroupPersonalInstallmentLoans
Namespace Prefix: | cubi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesHeldForSaleAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration