XML 16 R48.htm IDEA: XBRL DOCUMENT v3.3.0.814

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) rolling_quarter industry_group loan_production_office banking_office	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Accounting Policies [Abstract]
Number of banking offices | banking_office		35
Number of loan production offices | loan_production_office		72
Net deferred tax asset		$ 13,388,000		$ 16,373,000
Valuation allowance		$ 0		0
Look-back period | rolling_quarter		28
Number of industry groups | industry_group		3
Accounting Standards Update 2014-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of change on equity or net assets				$ (274,000)
Effect of change on net income	$ 21,000		$ (9,000)

X

- Definition

Allowance for Loan and Lease Losses, Comparative Analysis, Look-back Period

+ References

No definition available.

+ Details

Name:	banc_AllowanceforLoanandLeaseLossesComparativeAnalysisLookbackPeriod
Namespace Prefix:	banc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Allowance for Loan and Lease Losses, Number of Industry Groups

+ References

No definition available.

+ Details

Name:	banc_AllowanceforLoanandLeaseLossesNumberofIndustryGroups
Namespace Prefix:	banc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of offices included in Nature of Operations disclosure.

+ References

No definition available.

+ Details

Name:	banc_NumberOfBankingOffices
Namespace Prefix:	banc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of loan production offices included in Nature of Operations disclosure.

+ References

No definition available.

+ Details

Name:	banc_NumberOfProductionOffices
Namespace Prefix:	banc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

+ Details

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

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

+ Details

Name:	us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Direct Effects of a Change in Accounting Principle



-URI http://asc.fasb.org/extlink&oid=6510796



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 250



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Indirect Effects of a Change in Accounting Principle



-URI http://asc.fasb.org/extlink&oid=6515603



Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Accounting Change



-URI http://asc.fasb.org/extlink&oid=6503790



Reference 5: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Retrospective Application



-URI http://asc.fasb.org/extlink&oid=6523989



Reference 6: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 250



-SubTopic 10



-Section 50



-Paragraph 1



-Subparagraph (b)(3)



-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22499-107794



Reference 7: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 250



-SubTopic 10



-Section 50



-Paragraph 3



-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794



Reference 8: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Change in Accounting Principle



-URI http://asc.fasb.org/extlink&oid=6507316

+ Details

Name:	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of the effect of a change in accounting principle on net income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 250



-SubTopic 10



-Section 50



-Paragraph 3



-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 250



-SubTopic 10



-Section 50



-Paragraph 1



-Subparagraph (b)(2)



-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22499-107794



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 250



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794

+ Details

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

X

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=banc_AccountingStandardsUpdate201401Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: