Quarterly report pursuant to Section 13 or 15(d)

Loans - Allowance for Loan Losses by Portfolio Segment (Detail)

v3.3.0.814
Loans - Allowance for Loan Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Allowance for loan losses:        
Balance at beginning of period     $ 52,666  
Balance at end of period $ 46,360   46,360  
Loans receivable:        
Balance at end of period 3,045,072   3,045,072  
Non-PCI Loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 49,468 $ 51,886 51,640 $ 57,555
Charge-offs (1,748) (1,418) (3,004) (5,569)
Recoveries on loans previously charged off 992 663 4,477 6,656
Provision (negative provision) (5,490) 48 (9,891) (7,463)
Balance at end of period 43,222 51,179 43,222 51,179
Ending balance: individually evaluated for impairment 4,346 5,784 4,346 5,784
Ending balance: collectively evaluated for impairment 38,876 45,395 38,876 45,395
Loans receivable:        
Balance at end of period 3,019,927 2,612,246 3,019,927 2,612,246
Ending balance: individually evaluated for impairment 37,912 49,382 37,912 49,382
Ending balance: collectively evaluated for impairment 2,982,015 2,562,864 2,982,015 2,562,864
Non-PCI Loans [Member] | Real estate loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 39,898 40,303 41,194 43,550
Charge-offs (334) (884) (435) (2,073)
Recoveries on loans previously charged off 745 293 2,040 3,298
Provision (negative provision) (5,867) 179 (8,357) (4,884)
Balance at end of period 34,442 39,891 34,442 39,891
Ending balance: individually evaluated for impairment 3,500 2,027 3,500 2,027
Ending balance: collectively evaluated for impairment 30,942 37,864 30,942 37,864
Loans receivable:        
Balance at end of period 2,714,645 2,348,366 2,714,645 2,348,366
Ending balance: individually evaluated for impairment 28,372 35,654 28,372 35,654
Ending balance: collectively evaluated for impairment 2,686,273 2,312,712 2,686,273 2,312,712
Non-PCI Loans [Member] | Commercial and industrial loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 8,245 9,738 9,142 11,287
Charge-offs (1,414) (499) (2,569) (3,394)
Recoveries on loans previously charged off 244 365 2,434 3,338
Provision (negative provision) 700 260 (1,232) (1,367)
Balance at end of period 7,775 9,864 7,775 9,864
Ending balance: individually evaluated for impairment 846 3,757 846 3,757
Ending balance: collectively evaluated for impairment 6,929 6,107 6,929 6,107
Loans receivable:        
Balance at end of period 280,591 234,975 280,591 234,975
Ending balance: individually evaluated for impairment 7,851 11,970 7,851 11,970
Ending balance: collectively evaluated for impairment 272,740 223,005 272,740 223,005
Non-PCI Loans [Member] | Consumer loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 172 540 220 1,427
Charge-offs 0 (35) 0 (102)
Recoveries on loans previously charged off 3 5 3 20
Provision (negative provision) (78) (186) (126) (1,021)
Balance at end of period 97 324 97 324
Ending balance: individually evaluated for impairment 0 0 0 0
Ending balance: collectively evaluated for impairment 97 324 97 324
Loans receivable:        
Balance at end of period 24,691 28,905 24,691 28,905
Ending balance: individually evaluated for impairment 1,689 1,758 1,689 1,758
Ending balance: collectively evaluated for impairment 23,002 27,147 23,002 27,147
Non-PCI Loans [Member] | Unallocated [Member]        
Allowance for loan losses:        
Balance at beginning of period 1,153 1,305 1,084 1,291
Charge-offs 0 0 0 0
Recoveries on loans previously charged off 0 0 0 0
Provision (negative provision) (245) (205) (176) (191)
Balance at end of period 908 1,100 908 1,100
Ending balance: individually evaluated for impairment 0 0 0 0
Ending balance: collectively evaluated for impairment 908 1,100 908 1,100
Loans receivable:        
Balance at end of period 0 0 0 0
Ending balance: individually evaluated for impairment 0 0 0 0
Ending balance: collectively evaluated for impairment 0 $ 0 0 $ 0
PCI Loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 1,352   1,026  
Provision (negative provision) 1,786   2,112  
Balance at end of period 3,138   3,138  
Loans receivable:        
Balance at end of period 25,145   25,145  
PCI Loans [Member] | Real estate loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 1,289   895  
Provision (negative provision) 1,830   2,224  
Balance at end of period 3,119   3,119  
Loans receivable:        
Balance at end of period 24,909   24,909  
PCI Loans [Member] | Commercial and industrial loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 63   131  
Provision (negative provision) (46)   (114)  
Balance at end of period 17   17  
Loans receivable:        
Balance at end of period 193   193  
PCI Loans [Member] | Consumer loans [Member]        
Allowance for loan losses:        
Balance at beginning of period 0   0  
Provision (negative provision) 2   2  
Balance at end of period 2   2  
Loans receivable:        
Balance at end of period 43   43  
PCI Loans [Member] | Unallocated [Member]        
Allowance for loan losses:        
Balance at beginning of period 0   0  
Provision (negative provision) 0   0  
Balance at end of period 0   0  
Loans receivable:        
Balance at end of period $ 0   $ 0