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Legal and Regulatory Proceedings - Additional Information (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2008
Mar. 31, 2013
USD ($)
Dec. 31, 2012
USD ($)
Loss Contingencies [Line Items]        
Number of alleging violations of ERISA that were dismissed   2    
Percentage of funds returned to defendants 25.00%      
Class Settlement Escrow     $ 46,000  
Non Class Action Escrow       $ 4,000
Amount in excess of amounts reserved $ 37,000      
Federal Lawsuits        
Loss Contingencies [Line Items]        
Number of merchants 460      
State Lawsuits        
Loss Contingencies [Line Items]        
Number of merchants 1      
Merchants requesting exclusion from class settlement        
Loss Contingencies [Line Items]        
Number of merchants 8,000      
Amount Owed to Consumers | Bancorp's debt protection credit card "add-on" product for those enrolled in product from January 1, 2007 through November 11, 2013        
Loss Contingencies [Line Items]        
Loss Contingency $ 3,000      
Total amount owed to the CFPB and consumers | Bancorp's debt protection credit card "add-on" product for those enrolled in product from January 1, 2007 through November 11, 2013        
Loss Contingencies [Line Items]        
Loss Contingency 3,500      
Consumer Financial Protection Bureau And Department Of Justice | Bancorp's debt protection credit card "add-on" product for those enrolled in product from January 1, 2007 through November 11, 2013        
Loss Contingencies [Line Items]        
Loss Contingency 500      
Consumer Financial Protection Bureau And Department Of Justice | Bancorp's Indirect Automobile Loan Portfolio        
Loss Contingencies [Line Items]        
Loss Contingency 18,000      
Consumer Financial Protection Bureau And Department Of Justice | Bancorp's Indirect Automobile Loan Portfolio | Upper Limit        
Loss Contingencies [Line Items]        
Loss Contingency Redemption 6,000      
Consumer Financial Protection Bureau And Department Of Justice | Bancorp's Indirect Automobile Loan Portfolio | Lower limit        
Loss Contingencies [Line Items]        
Loss Contingency Redemption $ 5,000      
Department Of Housing And Urban Development        
Loss Contingencies [Line Items]        
Number Of Loans Bancorp Agreed To Pay Hud For Any Losses 900      
Number Of Loans Bancorp Voluntarily Disclosed As Eligible For FHA Insurance which were later determined to be ineligible for such insurance 1,400      
Department Of Housing And Urban Development | Amount owed to HUD to cover losses on paid FHA insurance claims        
Loss Contingencies [Line Items]        
Loss Contingency $ 85,000      
Number Of Loans With Expected Losses 500      
Department Of Housing And Urban Development | Amount owed to HUD for stipulation and order of settlement and dismissal with DOJ and HUD        
Loss Contingencies [Line Items]        
Loss Contingency $ 2,000