v3.3.1.900
Purchase Credit Impaired ("PCI") Loans - Rollforward of PCI Loans, Net of Allowance for Loan Losses (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]    
Balance at beginning of period $ 83,693 $ 125,100
Principal reductions and interest payments (24,441) (35,718)
Accretion of loan discount 10,775 15,747
Changes in contractual and expected cash flows due to remeasurement 14,707 8,467
Reductions due to disposals (20,151) (29,903)
Balance at end of period 64,583 83,693
Contractual Cashflows    
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]    
Balance at beginning of period 178,145 266,068
Principal reductions and interest payments (24,441) (35,718)
Accretion of loan discount 0 0
Changes in contractual and expected cash flows due to remeasurement (3,574) (2,170)
Reductions due to disposals (33,441) (50,035)
Balance at end of period 116,689 178,145
Non-accretable Difference    
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]    
Balance at beginning of period 65,719 87,438
Principal reductions and interest payments 0 0
Accretion of loan discount 0 0
Changes in contractual and expected cash flows due to remeasurement (30,413) (7,403)
Reductions due to disposals (8,541) (14,316)
Balance at end of period 26,765 65,719
Accretable Yield    
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]    
Balance at beginning of period 28,733 53,530
Principal reductions and interest payments 0 0
Accretion of loan discount 10,775 15,747
Changes in contractual and expected cash flows due to remeasurement 12,132 (3,234)
Reductions due to disposals (4,749) (5,816)
Balance at end of period $ 25,341 $ 28,733