Annual report pursuant to Section 13 and 15(d)

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

v3.3.1.900
Loans - Allowance for Loan Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Allowance for loan losses:                      
Balance at beginning of period       $ 52,666         $ 52,666    
(Negative provision) provision $ (3,835) $ (3,704) $ (2,403) (1,672) $ 1,312 $ (60) $ (3,902) $ (3,608) (11,614) $ (6,258) $ 576
Balance at end of period 42,935       52,666       42,935 52,666  
Loans receivable:                      
Balance at end of period 3,183,316       2,788,498       3,183,316 2,788,498  
PCI Loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       1,026         1,026    
(Negative provision) provision                 4,415    
Balance at end of period 5,441       1,026       5,441 1,026  
Loans receivable:                      
Balance at end of period 20,014       44,501       20,014 44,501  
PCI Loans [Member] | Real estate loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       895         895    
(Negative provision) provision                 4,502    
Balance at end of period 5,397       895       5,397 895  
Loans receivable:                      
Balance at end of period 19,796               19,796    
PCI Loans [Member] | Commercial and industrial loans[Member]                      
Allowance for loan losses:                      
Balance at beginning of period       131         131    
(Negative provision) provision                 (89)    
Balance at end of period 42       131       42 131  
Loans receivable:                      
Balance at end of period 171               171    
PCI Loans [Member] | Consumer loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       0         0    
(Negative provision) provision                 2    
Balance at end of period 2       0       2 0  
Loans receivable:                      
Balance at end of period 47               47    
PCI Loans [Member] | Unallocated [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       0         0    
(Negative provision) provision                 0    
Balance at end of period 0       0       0 0  
Loans receivable:                      
Balance at end of period 0               0    
Non-PCI Loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       51,640       57,555 51,640 57,555  
Charge-offs                 (3,531) (6,992)  
Recoveries on loans previously charged off                 5,423 8,361  
(Negative provision) provision                 (16,038) (7,284)  
Balance at end of period 37,494       51,640       37,494 51,640 57,555
Ending balance: individually evaluated for impairment 4,445       5,246       4,445 5,246  
Ending balance: collectively evaluated for impairment 33,049       46,394       33,049 46,394  
Loans receivable:                      
Balance at end of period 3,163,302       2,740,760       3,163,302 2,740,760  
Ending balance: individually evaluated for impairment 35,859       45,865       35,859 45,865  
Ending balance: collectively evaluated for impairment 3,127,443       2,694,895       3,127,443 2,694,895  
Non-PCI Loans [Member] | Real estate loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       41,194       43,550 41,194 43,550  
Charge-offs                 (565) (3,009)  
Recoveries on loans previously charged off                 2,080 4,348  
(Negative provision) provision                 (12,909) (3,695)  
Balance at end of period 29,800       41,194       29,800 41,194 43,550
Ending balance: individually evaluated for impairment 3,858       2,517       3,858 2,517  
Ending balance: collectively evaluated for impairment 25,942       38,677       25,942 38,677  
Loans receivable:                      
Balance at end of period 2,825,718       2,464,386       2,825,718 2,464,386  
Ending balance: individually evaluated for impairment 27,341       32,497       27,341 32,497  
Ending balance: collectively evaluated for impairment 2,798,377       2,431,889       2,798,377 2,431,889  
Non-PCI Loans [Member] | Commercial and industrial loans[Member]                      
Allowance for loan losses:                      
Balance at beginning of period       9,142       11,287 9,142 11,287  
Charge-offs                 (2,966) (3,881)  
Recoveries on loans previously charged off                 3,339 3,801  
(Negative provision) provision                 (2,434) (2,065)  
Balance at end of period 7,081       9,142       7,081 9,142 11,287
Ending balance: individually evaluated for impairment 587       2,729       587 2,729  
Ending balance: collectively evaluated for impairment 6,494       6,413       6,494 6,413  
Loans receivable:                      
Balance at end of period 312,705       248,862       312,705 248,862  
Ending balance: individually evaluated for impairment 6,853       11,626       6,853 11,626  
Ending balance: collectively evaluated for impairment 305,852       237,236       305,852 237,236  
Non-PCI Loans [Member] | Consumer loans [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       220       1,427 220 1,427  
Charge-offs                 0 (102)  
Recoveries on loans previously charged off                 4 212  
(Negative provision) provision                 18 (1,317)  
Balance at end of period 242       220       242 220 1,427
Ending balance: individually evaluated for impairment 0       0       0 0  
Ending balance: collectively evaluated for impairment 242       220       242 220  
Loans receivable:                      
Balance at end of period 24,879       27,512       24,879 27,512  
Ending balance: individually evaluated for impairment 1,665       1,742       1,665 1,742  
Ending balance: collectively evaluated for impairment 23,214       25,770       23,214 25,770  
Non-PCI Loans [Member] | Unallocated [Member]                      
Allowance for loan losses:                      
Balance at beginning of period       $ 1,084       $ 1,291 1,084 1,291  
Charge-offs                 0 0  
Recoveries on loans previously charged off                 0 0  
(Negative provision) provision                 (713) (207)  
Balance at end of period 371       1,084       371 1,084 $ 1,291
Ending balance: individually evaluated for impairment 0       0       0 0  
Ending balance: collectively evaluated for impairment 371       1,084       371 1,084  
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