XML 182 R162.htm IDEA: XBRL DOCUMENT v3.3.1.900

SEGMENT REPORTING - Additional Information (Detail) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) segment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment									4
Segment Reporting Information [Line Items]
Noninterest expense	$ 86,659	$ 81,743	$ 87,920	$ 75,879	$ 78,220	$ 67,354	$ 60,304	$ 57,594	$ 332,201	$ 263,472	$ 178,101
Operating Segments | Commercial Banking
Segment Reporting Information [Line Items]
Noninterest expense									183,918	150,539	88,449
Operating Segments | Corporate/ Other
Segment Reporting Information [Line Items]
Noninterest expense									0	12,480	13,624
Operating Segments | Mortgage Banking
Segment Reporting Information [Line Items]
Noninterest expense									143,912	96,103	76,210
Operating Segments | Financial Advisory
Segment Reporting Information [Line Items]
Noninterest expense									$ 10,463	11,071	2,339
Adjustment
Segment Reporting Information [Line Items]
Noninterest expense										$ (689)	$ (569)
Adjustment | Operating Segments | Commercial Banking
Segment Reporting Information [Line Items]
Noninterest expense	(7,100)
Adjustment | Operating Segments | Corporate/ Other
Segment Reporting Information [Line Items]
Noninterest expense	(13,800)
Adjustment | Operating Segments | Mortgage Banking
Segment Reporting Information [Line Items]
Noninterest expense	19,300
Adjustment | Operating Segments | Financial Advisory
Segment Reporting Information [Line Items]
Noninterest expense	$ 1,600

X

- Definition

Total aggregate amount of all noninterest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

Name:	us-gaap_NoninterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=banc_BankingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=banc_MortgageBankingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=banc_FinancialAdvisoryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_RestatementAdjustmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: