Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Loans and Leases - Allowance for Loan and Lease Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Allowance for loan losses:                      
Balance at beginning of period       $ 42,935         $ 42,935    
(Negative provision) provision $ 151 $ (1,450) $ (1,515) (1,525) $ (3,835) $ (3,704) $ (2,403) $ (1,672) (4,339) $ (11,614) $ (6,258)
Balance at end of period 32,429       42,935       32,429 42,935  
Loans receivable:                      
Balance at end of period 3,844,769       3,183,316       3,844,769 3,183,316  
PCI Loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       5,441       1,026 5,441 1,026  
Charge-offs                 (5,133)    
(Negative provision) provision                 663 4,415  
Balance at end of period 971       5,441       971 5,441 1,026
Loans receivable:                      
Balance at end of period 9,863       20,014       9,863 20,014  
PCI Loans [Member] | Real estate loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       5,397       895 5,397 895  
Charge-offs                 (5,133)    
(Negative provision) provision                 658 4,502  
Balance at end of period 922       5,397       922 5,397 895
Loans receivable:                      
Balance at end of period 9,677       19,796       9,677 19,796  
PCI Loans [Member] | Commercial and industrial loans[Member]                      
Allowance for loan losses:                      
Balance at beginning of period       42       131 42 131  
Charge-offs                 0    
(Negative provision) provision                 (1) (89)  
Balance at end of period 41       42       41 42 131
Loans receivable:                      
Balance at end of period 136       171       136 171  
PCI Loans [Member] | Leases Receivable [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       0         0    
Charge-offs                 0    
(Negative provision) provision                 0    
Balance at end of period 0       0       0 0  
Loans receivable:                      
Balance at end of period 0               0    
PCI Loans [Member] | Consumer loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       2       0 2 0  
Charge-offs                 0    
(Negative provision) provision                 6 2  
Balance at end of period 8       2       8 2 0
Loans receivable:                      
Balance at end of period 50       47       50 47  
PCI Loans [Member] | Unallocated [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       0       0 0 0  
Charge-offs                 0    
(Negative provision) provision                 0 0  
Balance at end of period 0       0       0 0 0
Loans receivable:                      
Balance at end of period 0       0       0 0  
Non-PCI Loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       37,494       51,640 37,494 51,640  
Charge-offs                 (3,736) (3,531)  
Recoveries on loans and leases previously charged off                 2,702 5,423  
(Negative provision) provision                 (5,002) (16,038)  
Balance at end of period 31,458       37,494       31,458 37,494 51,640
Ending balance: individually evaluated for impairment 4,327       4,445       4,327 4,445  
Ending balance: collectively evaluated for impairment 27,131       33,049       27,131 33,049  
Loans receivable:                      
Balance at end of period 3,834,906       3,163,302       3,834,906 3,163,302  
Ending balance: individually evaluated for impairment 26,350       35,859       26,350 35,859  
Ending balance: collectively evaluated for impairment 3,808,556       3,127,443       3,808,556 3,127,443  
Non-PCI Loans [Member] | Real estate loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       29,800       41,194 29,800 41,194  
Charge-offs                 (3,022) (565)  
Recoveries on loans and leases previously charged off                 667 2,080  
(Negative provision) provision                 (2,233) (12,909)  
Balance at end of period 25,212       29,800       25,212 29,800 41,194
Ending balance: individually evaluated for impairment 3,980       3,858       3,980 3,858  
Ending balance: collectively evaluated for impairment 21,232       25,942       21,232 25,942  
Loans receivable:                      
Balance at end of period 3,268,698       2,825,718       3,268,698 2,825,718  
Ending balance: individually evaluated for impairment 21,757       27,341       21,757 27,341  
Ending balance: collectively evaluated for impairment 3,246,941       2,798,377       3,246,941 2,798,377  
Non-PCI Loans [Member] | Commercial and industrial loans[Member]                      
Allowance for loan losses:                      
Balance at beginning of period       7,081       9,142 7,081 9,142  
Charge-offs                 (706) (2,966)  
Recoveries on loans and leases previously charged off                 1,978 3,339  
(Negative provision) provision                 (2,771) (2,434)  
Balance at end of period 5,582       7,081       5,582 7,081 9,142
Ending balance: individually evaluated for impairment 347       587       347 587  
Ending balance: collectively evaluated for impairment 5,235       6,494       5,235 6,494  
Loans receivable:                      
Balance at end of period 300,084       312,705       300,084 312,705  
Ending balance: individually evaluated for impairment 4,174       6,853       4,174 6,853  
Ending balance: collectively evaluated for impairment 295,910       305,852       295,910 305,852  
Non-PCI Loans [Member] | Leases Receivable [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       0         0    
Charge-offs                 (6)    
Recoveries on loans and leases previously charged off                 1    
(Negative provision) provision                 312    
Balance at end of period 307       0       307 0  
Ending balance: individually evaluated for impairment 0               0    
Ending balance: collectively evaluated for impairment 307               307    
Loans receivable:                      
Balance at end of period 243,294               243,294    
Ending balance: individually evaluated for impairment 0               0    
Ending balance: collectively evaluated for impairment 243,294               243,294    
Non-PCI Loans [Member] | Consumer loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       242       220 242 220  
Charge-offs                 (2) 0  
Recoveries on loans and leases previously charged off                 56 4  
(Negative provision) provision                 (105) 18  
Balance at end of period 191       242       191 242 220
Ending balance: individually evaluated for impairment 0       0       0 0  
Ending balance: collectively evaluated for impairment 191       242       191 242  
Loans receivable:                      
Balance at end of period 22,830       24,879       22,830 24,879  
Ending balance: individually evaluated for impairment 419       1,665       419 1,665  
Ending balance: collectively evaluated for impairment 22,411       23,214       22,411 23,214  
Non-PCI Loans [Member] | Unallocated [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       $ 371       $ 1,084 371 1,084  
Charge-offs                 0 0  
Recoveries on loans and leases previously charged off                 0 0  
(Negative provision) provision                 (205) (713)  
Balance at end of period 166       371       166 371 $ 1,084
Ending balance: individually evaluated for impairment 0       0       0 0  
Ending balance: collectively evaluated for impairment 166       371       166 371  
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