Annual report pursuant to Section 13 and 15(d)

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

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Loans and Leases - Allowance for Loan Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Allowance for loan losses:      
Balance at beginning of period $ 31,974 $ 31,043 $ 32,429
Less loans and leases charged off (4,588) (7,310) (5,899)
Recoveries on loans and leases previously charged off 3,852 4,251 3,682
Loan and lease loss provision 30,170 3,990 831
Balance at end of period 61,408 31,974 31,043
Loans receivable:      
Total loans and leases receivable 4,610,147 4,600,540  
Real Estate      
Loans receivable:      
Total loans and leases receivable 3,628,505 3,758,355  
Commercial and Industrial      
Loans receivable:      
Total loans and leases receivable 484,093 429,903  
Leases Receivable      
Loans receivable:      
Total loans and leases receivable 483,879 398,858  
Consumer      
Loans receivable:      
Total loans and leases receivable 13,670 13,424  
Non-PCI Loans and Leases      
Allowance for loan losses:      
Balance at beginning of period 31,974 31,043  
Less loans and leases charged off (4,588) (7,310)  
Recoveries on loans and leases previously charged off 3,852 4,251  
Loan and lease loss provision 30,170 3,990  
Balance at end of period 61,408 31,974 31,043
Ending balance: individually evaluated for impairment 25,778 1,812  
Ending balance: collectively evaluated for impairment 35,631 30,162  
Loans receivable:      
Total loans and leases receivable 4,610,147 4,600,540  
Individually evaluated for impairment 64,766 25,125  
Collectively evaluated for impairment 4,545,382 4,575,415  
Non-PCI Loans and Leases | Real Estate      
Allowance for loan losses:      
Balance at beginning of period 18,384 17,012  
Less loans and leases charged off (131) (3,897)  
Recoveries on loans and leases previously charged off 2,190 2,512  
Loan and lease loss provision 15,913 2,757  
Balance at end of period 36,355 18,384 17,012
Ending balance: individually evaluated for impairment 14,028 1  
Ending balance: collectively evaluated for impairment 22,327 18,383  
Loans receivable:      
Total loans and leases receivable 3,628,505 3,758,355  
Individually evaluated for impairment 43,867 14,761  
Collectively evaluated for impairment 3,584,638 3,743,594  
Non-PCI Loans and Leases | Commercial and Industrial      
Allowance for loan losses:      
Balance at beginning of period 7,162 7,400  
Less loans and leases charged off (1,293) (815)  
Recoveries on loans and leases previously charged off 1,241 1,369  
Loan and lease loss provision 9,097 (792)  
Balance at end of period 16,206 7,162 7,400
Ending balance: individually evaluated for impairment 8,885 428  
Ending balance: collectively evaluated for impairment 7,321 6,734  
Loans receivable:      
Total loans and leases receivable 484,093 429,903  
Individually evaluated for impairment 13,700 4,396  
Collectively evaluated for impairment 470,393 425,507  
Non-PCI Loans and Leases | Leases Receivable      
Allowance for loan losses:      
Balance at beginning of period 6,303 6,279  
Less loans and leases charged off (3,162) (2,598)  
Recoveries on loans and leases previously charged off 422 368  
Loan and lease loss provision 5,205 2,254  
Balance at end of period 8,767 6,303 6,279
Ending balance: individually evaluated for impairment 2,863 1,383  
Ending balance: collectively evaluated for impairment 5,904 4,920  
Loans receivable:      
Total loans and leases receivable 483,879 398,858  
Individually evaluated for impairment 5,902 5,129  
Collectively evaluated for impairment 477,977 393,729  
Non-PCI Loans and Leases | Consumer      
Allowance for loan losses:      
Balance at beginning of period 98 122  
Less loans and leases charged off (1)    
Recoveries on loans and leases previously charged off 0 2  
Loan and lease loss provision (17) (26)  
Balance at end of period 80 98 122
Ending balance: individually evaluated for impairment 1 0  
Ending balance: collectively evaluated for impairment 79 98  
Loans receivable:      
Total loans and leases receivable 13,670 13,424  
Individually evaluated for impairment 1,297 839  
Collectively evaluated for impairment 12,373 12,585  
Non-PCI Loans and Leases | Unallocated      
Allowance for loan losses:      
Balance at beginning of period 27 230  
Loan and lease loss provision (27) (203)  
Balance at end of period   27 $ 230
Ending balance: individually evaluated for impairment   0  
Ending balance: collectively evaluated for impairment   27  
Loans receivable:      
Total loans and leases receivable 0 0  
Individually evaluated for impairment 0 0  
Collectively evaluated for impairment $ 0 $ 0