XML 85 R73.htm IDEA: XBRL DOCUMENT v3.5.0.2

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Risk Categories for Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$ 6,236,115	$ 5,184,394	$ 4,473,095
Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,406,634	4,376,684
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	19,617	36,530
Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	69,796	72,089
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	34	0
Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	740,034	699,091
Purchased Credit Impaired
Financing Receivable, Recorded Investment [Line Items]
Gross loans	751,244	712,731	266,372
Purchased Credit Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	999	6,663
Purchased Credit Impaired | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,641	523
Purchased Credit Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	5,570	6,454
Purchased Credit Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Purchased Credit Impaired | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	740,034	699,091
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment [Line Items]
Gross loans	842,634	785,908
Traditional Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,642,237	3,685,755
Traditional Loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,581,585	3,616,554
Traditional Loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	12,832	21,947
Traditional Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	47,786	47,254
Traditional Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	34	0
Traditional Loans | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Traditional Loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	86,852	55,289
Consumer | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,455,724	2,150,453
Consumer | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	115,911	109,681
Consumer | Purchased Credit Impaired | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	740,165	699,230
Consumer | Purchased Credit Impaired | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Purchased Credit Impaired | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Purchased Credit Impaired | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	131	139
Consumer | Purchased Credit Impaired | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Purchased Credit Impaired | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	740,034	699,091
Consumer | Purchased Credit Impaired | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment [Line Items]
Gross loans	842,634	785,908
Consumer | Non-Traditional Mortgages (NTM) | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	824,050	753,467
Consumer | Non-Traditional Mortgages (NTM) | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,144	14,060
Consumer | Non-Traditional Mortgages (NTM) | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	16,440	18,381
Consumer | Non-Traditional Mortgages (NTM) | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	838,336	781,091
Consumer | Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,298	4,817
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	738,716	675,960
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	734,266	660,683
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,747	11,731
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,703	3,546
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	99,620	105,131
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	85,486	87,967
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	397	2,329
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	13,737	14,835
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,298	4,704
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,298	4,704
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	113
Consumer | Non-Traditional Mortgages (NTM) | Other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	113
Consumer | Non-Traditional Mortgages (NTM) | Other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Other consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Other consumer | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Traditional Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans		3,685,755
Consumer | Traditional Loans | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Gross loans	976,843	775,263
Consumer | Traditional Loans | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	941,085	738,196
Consumer | Traditional Loans | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	8,513	12,301
Consumer | Traditional Loans | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	27,245	24,766
Consumer | Traditional Loans | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Traditional Loans | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Traditional Loans | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	115,911	109,568
Consumer | Traditional Loans | Other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	115,690	109,206
Consumer | Traditional Loans | Other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	86	148
Consumer | Traditional Loans | Other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	135	214
Consumer | Traditional Loans | Other consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Consumer | Traditional Loans | Other consumer | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,306,866	876,999	771,477
Commercial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	725,107	727,707	807,146
Commercial | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,147,597	904,300	696,768
Commercial | SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	65,477	57,706	56,887
Commercial | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	86,852	55,289	32,022
Commercial | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	228,663	192,424	131,189
Commercial | Purchased Credit Impaired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,910	853	365
Commercial | Purchased Credit Impaired | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	27	54
Commercial | Purchased Credit Impaired | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,127	0
Commercial | Purchased Credit Impaired | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	756	799
Commercial | Purchased Credit Impaired | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Purchased Credit Impaired | Commercial and industrial | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Purchased Credit Impaired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,326	9,599	11,004
Commercial | Purchased Credit Impaired | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	5,621
Commercial | Purchased Credit Impaired | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	514	523
Commercial | Purchased Credit Impaired | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,812	3,455
Commercial | Purchased Credit Impaired | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Purchased Credit Impaired | Commercial real estate | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Purchased Credit Impaired | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0	0
Commercial | Purchased Credit Impaired | SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	2,843	3,049	3,021
Commercial | Purchased Credit Impaired | SBA | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	972	988
Commercial | Purchased Credit Impaired | SBA | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Purchased Credit Impaired | SBA | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,871	2,061
Commercial | Purchased Credit Impaired | SBA | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Purchased Credit Impaired | SBA | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Purchased Credit Impaired | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0	0
Commercial | Purchased Credit Impaired | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0	$ 0
Commercial | Non-Traditional Mortgages (NTM) | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,301,956	876,146
Commercial | Traditional Loans | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,288,857	860,993
Commercial | Traditional Loans | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	863	3,175
Commercial | Traditional Loans | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	12,202	11,978
Commercial | Traditional Loans | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	34	0
Commercial | Traditional Loans | Commercial and industrial | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	721,781	718,108
Commercial | Traditional Loans | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	715,955	707,238
Commercial | Traditional Loans | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,803	4,788
Commercial | Traditional Loans | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	4,023	6,082
Commercial | Traditional Loans | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Commercial real estate | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,147,597	904,300
Commercial | Traditional Loans | Multi-family | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,145,753	901,578
Commercial | Traditional Loans | Multi-family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	403
Commercial | Traditional Loans | Multi-family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,844	2,319
Commercial | Traditional Loans | Multi-family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Multi-family | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | SBA
Financing Receivable, Recorded Investment [Line Items]
Gross loans	62,634	54,657
Commercial | Traditional Loans | SBA | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	62,236	53,078
Commercial | Traditional Loans | SBA | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	1,132
Commercial | Traditional Loans | SBA | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	398	447
Commercial | Traditional Loans | SBA | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | SBA | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	86,852	55,289
Commercial | Traditional Loans | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	85,322	55,289
Commercial | Traditional Loans | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,530	0
Commercial | Traditional Loans | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Construction | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Construction | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Gross loans	228,663	192,424
Commercial | Traditional Loans | Lease financing | Pass
Financing Receivable, Recorded Investment [Line Items]
Gross loans	226,687	190,976
Commercial | Traditional Loans | Lease financing | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Gross loans	37	0
Commercial | Traditional Loans | Lease financing | Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,939	1,448
Commercial | Traditional Loans | Lease financing | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Commercial | Traditional Loans | Lease financing | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$ 0	$ 0

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

X

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

+ Details

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

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=banc_NotRatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReceivablesAcquiredWithDeterioratedCreditQualityAxis=us-gaap_ReceivablesAcquiredWithDeterioratedCreditQualityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=banc_LoansAndFinanceReceivablesNonTraditionalMortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=banc_LoansAndFinanceReceivablesTraditionalLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=banc_ConsumerSingleFamilyResidentialMortgageReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=banc_OtherConsumerLoansReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=us-gaap_FirstMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=us-gaap_SecondMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=banc_ConsumerHomeEquityLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=banc_CommercialandIndustrialReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=banc_CommercialMultiFamilyReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=banc_CommercialSmallBusinessAdministrationReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=banc_CommercialLeaseFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: