XML 121 R109.htm IDEA: XBRL DOCUMENT v3.8.0.1

RESERVE FOR LOSS ON REPURCHASED LOANS - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Representations and Warranties Obligations and Corporate Guarantees
Loss Contingencies [Line Items]
Decrease in reserve for loss on repurchased loans	$ 2.9
Portfolio Run-Off and Repurchase Settlement Activities
Loss Contingencies [Line Items]
Decrease in reserve for loss on repurchased loans	1.5
Methodology and Data Enhancements
Loss Contingencies [Line Items]
Decrease in reserve for loss on repurchased loans	$ 1.4

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

X

- Definition

Amount of increase (decrease) in loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

+ Details

Name:	us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=banc_RepresentationsandWarrantiesObligationsandCorporateGuaranteesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=banc_RepresentationsandWarrantiesObligationsandCorporateGuaranteesPortfolioRunOffAndRepurchaseSettlementActivitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=banc_RepresentationsandWarrantiesObligationsandCorporateGuaranteesMethodologyAndDataEnhancementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: