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v2.4.1.9

STOCKHOLDERS' EQUITY - Perpetual Preferred Stock (Details) (Subsequent Event, Series D Preferred Stock) | 0 Months Ended
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Apr. 08, 2015
Subsequent Event | Series D Preferred Stock |
Class of Stock [Line Items] |
Depository shares to preferred stock ratio | 2.50%banc_DepositorySharesToPreferredStockRatio / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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- Definition Depository Shares to Preferred Stock Ratio + References No definition available. + Details
Name: | banc_DepositorySharesToPreferredStockRatio
Namespace Prefix: | banc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration