XML 95 R80.htm IDEA: XBRL DOCUMENT
v3.20.4

FAIR VALUES OF FINANCIAL INSTRUMENTS - Reconciliation of Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Total gains or losses (realized/unrealized): |  |  |  |
Decrease in GNMA loans subject to a repurchase option |  |  | $ 66,000,000.0 |
Disposals | Banc home loans | U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities |  |  |  |
Total gains or losses (realized/unrealized): |  |  |  |
Loans held-for-sale, carried at fair value |  |  |  | $ 32,300,000
Significant Unobservable Inputs (Level 3) | Recurring | Mortgage Servicing Rights |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning Balance | $ 1,157,000 | $ 1,770,000 | 31,852,000 |
Total gains or losses (realized/unrealized): |  |  |  |
Included in earnings-fair value adjustment | (308,000) | (264,000) | (1,155,000) |
Sales and settlements | (283,000) | (349,000) | (28,927,000) |
Ending Balance | 566,000 | 1,157,000 | 1,770,000 |
Significant Unobservable Inputs (Level 3) | Recurring | U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning Balance | 19,233,000 | 25,040,000 | 98,940,000 |
Total gains or losses (realized/unrealized): |  |  |  |
Included in earnings-fair value adjustment | (1,347,000) | (16,000) | (1,378,000) |
Additions | 0 | 406,000 | 23,678,000 |
Sales and settlements | (16,941,000) | (6,197,000) | (96,200,000) |
Ending Balance | 945,000 | 19,233,000 | 25,040,000 |
Significant Unobservable Inputs (Level 3) | Recurring | Disposals | Banc home loans | U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities |  |  |  |
Total gains or losses (realized/unrealized): |  |  |  |
Loans held-for-sale, carried at fair value | $ 0 | $ 0 | $ 17,300,000 |

X
- Definition Disposal Group, Including Discontinued Operation, Loans Receivable Held-For-Sale, Net + References No definition available. + Details
Name: | banc_DisposalGroupIncludingDiscontinuedOperationLoansReceivableHeldForSaleNet
Namespace Prefix: | banc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Fair Value Adjustment Including in Earnings + References No definition available. + Details
Name: | banc_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisAssetFairValueAdjustmentIncludinginEarnings
Namespace Prefix: | banc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales and Settlements + References No definition available. + Details
Name: | banc_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisAssetSalesandSettlements
Namespace Prefix: | banc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Total Gains (Losses) [Abstract] + References No definition available. + Details
Name: | banc_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisAssetTotalGainsLossesAbstract
Namespace Prefix: | banc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase (Decrease) in Loans Subject To Repurchase Option + References No definition available. + Details
Name: | banc_IncreaseDecreaseinLoansSubjectToRepurchaseOption
Namespace Prefix: | banc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + 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 (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsDisposedOfBySaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=banc_BancHomeLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
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_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_ServicingContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |