XML 101 R90.htm IDEA: XBRL DOCUMENT v3.7.0.1

LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Risk Categories for Loans and Leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 5,956,337	$ 6,034,752	$ 6,236,115
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	5,923,280	5,865,052
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	17,513	12,260
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	15,472	24,150
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	72	78
Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	133,212
Purchased Credit Impaired
Financing Receivable, Recorded Investment [Line Items]
Loans	4,301	141,826	751,244
Purchased Credit Impaired | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	2,353	2,450
Purchased Credit Impaired | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	4,056
Purchased Credit Impaired | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	1,948	2,108
Purchased Credit Impaired | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Purchased Credit Impaired | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	133,212
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment [Line Items]
Loans	773,037	885,148
Traditional Loans
Financing Receivable, Recorded Investment [Line Items]
Loans	5,178,999	5,007,778
Traditional Loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	5,147,890	4,981,404
Traditional Loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	17,513	4,721
Traditional Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	13,524	21,575
Traditional Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	72	78
Traditional Loans | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Traditional Loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	156,246	125,100
Consumer | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans	1,696,039	2,019,161
Consumer | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	117,011	107,063
Consumer | Purchased Credit Impaired | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans	0	133,212
Consumer | Purchased Credit Impaired | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Purchased Credit Impaired | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Purchased Credit Impaired | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Purchased Credit Impaired | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Purchased Credit Impaired | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	133,212
Consumer | Purchased Credit Impaired | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment [Line Items]
Loans	773,037	885,148
Consumer | Non-Traditional Mortgages (NTM) | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	773,037	881,198
Consumer | Non-Traditional Mortgages (NTM) | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	3,483
Consumer | Non-Traditional Mortgages (NTM) | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	467
Consumer | Non-Traditional Mortgages (NTM) | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Loans	769,495	881,589
Consumer | Non-Traditional Mortgages (NTM) | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Loans	3,542	3,559
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans	686,998	794,120
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	686,998	792,179
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	1,474
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	467
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens
Financing Receivable, Recorded Investment [Line Items]
Loans	82,497	87,469
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	82,497	85,460
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	2,009
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Doubtful
Financing Receivable, Recorded Investment [Line Items]
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]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens
Financing Receivable, Recorded Investment [Line Items]
Loans	3,542	3,559
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	3,542	3,559
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Doubtful
Financing Receivable, Recorded Investment [Line Items]
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]
Loans	0	0
Consumer | Non-Traditional Mortgages (NTM) | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Traditional Loans | Single family residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans	1,009,041	1,091,829
Consumer | Traditional Loans | Single family residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,002,654	1,080,664
Consumer | Traditional Loans | Single family residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	950
Consumer | Traditional Loans | Single family residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	6,387	10,215
Consumer | Traditional Loans | Single family residential mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Traditional Loans | Single family residential mortgage | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Traditional Loans | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	117,011	107,063
Consumer | Traditional Loans | Other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	116,163	106,632
Consumer | Traditional Loans | Other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	46	48
Consumer | Traditional Loans | Other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	802	383
Consumer | Traditional Loans | Other consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer | Traditional Loans | Other consumer | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans	1,560,916	1,522,960	1,306,866
Commercial | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	716,771	729,959	725,107
Commercial | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans	1,545,888	1,365,262	1,147,597
Commercial | SBA
Financing Receivable, Recorded Investment [Line Items]
Loans	77,254	73,840	65,477
Commercial | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	156,246	125,100	86,852
Commercial | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Loans	173	379	228,663
Commercial | Purchased Credit Impaired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans	652	4,760	4,910
Commercial | Purchased Credit Impaired | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	4,056
Commercial | Purchased Credit Impaired | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	652	704
Commercial | Purchased Credit Impaired | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Commercial and industrial | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	1,121	1,182	3,326
Commercial | Purchased Credit Impaired | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,121	1,182
Commercial | Purchased Credit Impaired | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Commercial real estate | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0	0
Commercial | Purchased Credit Impaired | SBA
Financing Receivable, Recorded Investment [Line Items]
Loans	2,528	2,672	2,843
Commercial | Purchased Credit Impaired | SBA | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,232	1,268
Commercial | Purchased Credit Impaired | SBA | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | SBA | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	1,296	1,404
Commercial | Purchased Credit Impaired | SBA | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | SBA | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Purchased Credit Impaired | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0	0
Commercial | Purchased Credit Impaired | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0	$ 0
Commercial | Non-Traditional Mortgages (NTM) | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | SBA
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Non-Traditional Mortgages (NTM) | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans	1,560,264	1,518,200
Commercial | Traditional Loans | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,545,120	1,508,636
Commercial | Traditional Loans | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	12,522	844
Commercial | Traditional Loans | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	2,550	8,642
Commercial | Traditional Loans | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	72	78
Commercial | Traditional Loans | Commercial and industrial | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	715,650	728,777
Commercial | Traditional Loans | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	710,187	725,861
Commercial | Traditional Loans | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	3,393	1,350
Commercial | Traditional Loans | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	2,070	1,566
Commercial | Traditional Loans | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Commercial real estate | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans	1,545,888	1,365,262
Commercial | Traditional Loans | Multi-family | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	1,545,340	1,365,262
Commercial | Traditional Loans | Multi-family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	548	0
Commercial | Traditional Loans | Multi-family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Multi-family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Multi-family | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | SBA
Financing Receivable, Recorded Investment [Line Items]
Loans	74,726	71,168
Commercial | Traditional Loans | SBA | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	72,072	70,508
Commercial | Traditional Loans | SBA | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	1,004	0
Commercial | Traditional Loans | SBA | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	1,650	660
Commercial | Traditional Loans | SBA | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | SBA | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans	156,246	125,100
Commercial | Traditional Loans | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	156,246	123,571
Commercial | Traditional Loans | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	1,529
Commercial | Traditional Loans | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Construction | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Construction | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Lease financing
Financing Receivable, Recorded Investment [Line Items]
Loans	173	379
Commercial | Traditional Loans | Lease financing | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans	108	270
Commercial | Traditional Loans | Lease financing | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Lease financing | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans	65	109
Commercial | Traditional Loans | Lease financing | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial | Traditional Loans | Lease financing | Not-Rated
Financing Receivable, Recorded Investment [Line Items]
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 and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. 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=82891408&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
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: