XML 143 R125.htm IDEA: XBRL DOCUMENT v3.8.0.1

SERVICING RIGHTS - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Mar. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Transfers and Servicing [Abstract]
Unpaid principal balance		$ 3,940,000	$ 7,580,000
Escrow balances		17,800	34,200
Servicing Assets at Fair Value [Line Items]
Sales of servicing rights		39,345	$ 5,382	$ 5,862
Servicing rights, held-for-sale, fair value		$ 29,793
Discount rate		8.50%
Prepayment speed		8.50%
Discontinued Operations, Disposed of by Sale | Banc Home Loan
Servicing Assets at Fair Value [Line Items]
Sales of servicing rights	$ 37,800	$ 37,772

X

- Definition

Continuing Involvement with Derecognized Transferred Financial Assets, Recorded Escrow Balance

+ References

No definition available.

+ Details

Name:	banc_ContinuingInvolvementwithDerecognizedTransferredFinancialAssetsRecordedEscrowBalance
Namespace Prefix:	banc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Servicing Asset at Amortized Cost, Discount Rate

+ References

No definition available.

+ Details

Name:	banc_ServicingAssetatAmortizedCostDiscountRate
Namespace Prefix:	banc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Servicing Asset at Amortized Cost, Prepayment Speed Calculation, Percentage

+ References

No definition available.

+ Details

Name:	banc_ServicingAssetatAmortizedCostPrepaymentSpeedCalculationPercentage
Namespace Prefix:	banc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Servicing Asset at Fair Value, Amount, Held-For-Sale

+ References

No definition available.

+ Details

Name:	banc_ServicingAssetatFairValueAmountHeldForSale
Namespace Prefix:	banc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that have been derecognized. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=d3e107314-111719

+ Details

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

X

- Definition

Decrease in servicing assets subsequently measured at fair value resulting from conveyance of servicing rights to unrelated parties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122625-111746

+ Details

Name:	us-gaap_ServicingAssetAtFairValueDisposals
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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

X

- References

No definition available.

+ Details

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

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: