XML 63 R51.htm IDEA: XBRL DOCUMENT
v3.20.2

Loans Held for Sale - Narrative (Details) - USD ($) $ in Thousands |  | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Receivables Held-for-sale [Abstract] |  |  |  |
Transfer of multi-family loans held for sale to held for investment | $ 401,100 | $ 401,144 | $ 0 |
Loans held-for-sale (including nonperforming loans) | $ 19,700 | $ 19,700 |  | $ 1,300

X
- Definition Loans Held-for-Sale (Including Nonperforming Loans) + References No definition available. + Details
Name: | cubi_LoansHeldForSaleIncludingNonperformingLoans
Namespace Prefix: | cubi_
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

X
- Definition Value of loans held-for-sale transferred to loans held in the entity's portfolio in noncash transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586 + Details
Name: | us-gaap_TransferOfLoansHeldForSaleToPortfolioLoans1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration