Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Loans - Allowance for Credit Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period $ 61,408    
Balance at end of period 66,500    
Loans receivable:      
Total loans receivable 4,543,636   $ 4,610,147
Non-PCI Loans and Leases      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 61,408 $ 31,974  
Adjusted balance as of January 1, 2020 78,841    
Less loans charged off 27,473 1,107  
Recoveries on loans receivable previously charged off (216) (912)  
Provision for credit losses 14,916 1,117  
Balance at end of period 66,500 32,896  
Individually evaluated for impairment 1,899 4,368  
Collectively evaluated for impairment 64,601 28,528  
Loans receivable:      
Total loans receivable 4,543,636 4,575,620  
Individually evaluated for impairment 47,296 43,282  
Collectively evaluated for impairment 4,496,340 4,532,338  
Non-PCI Loans and Leases | ASU 2016-13      
Financing Receivable Allowance For Credit Losses [Line Items]      
Adjustment related to adoption of ASU 2016-13 17,433    
Real Estate      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 36,355    
Balance at end of period 38,983    
Loans receivable:      
Total loans receivable 3,566,305   3,628,505
Real Estate | Non-PCI Loans and Leases      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 36,355 18,384  
Adjusted balance as of January 1, 2020 50,327    
Less loans charged off 14,142 122  
Recoveries on loans receivable previously charged off (58) (440)  
Provision for credit losses 2,740 (396)  
Balance at end of period 38,983 18,306  
Individually evaluated for impairment 78    
Collectively evaluated for impairment 38,905 18,306  
Loans receivable:      
Total loans receivable 3,566,305 3,714,356  
Individually evaluated for impairment 34,161 14,015  
Collectively evaluated for impairment 3,532,144 3,700,341  
Real Estate | Non-PCI Loans and Leases | ASU 2016-13      
Financing Receivable Allowance For Credit Losses [Line Items]      
Adjustment related to adoption of ASU 2016-13 13,972    
Commercial and Industrial      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 16,206    
Balance at end of period 11,588    
Loans receivable:      
Total loans receivable 472,714   484,093
Commercial and Industrial | Non-PCI Loans and Leases      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 16,206 7,162  
Adjusted balance as of January 1, 2020 13,709    
Less loans charged off 12,150 133  
Recoveries on loans receivable previously charged off (84) (382)  
Provision for credit losses 9,945 1,300  
Balance at end of period 11,588 8,711  
Individually evaluated for impairment 147 3,269  
Collectively evaluated for impairment 11,441 5,442  
Loans receivable:      
Total loans receivable 472,714 422,502  
Individually evaluated for impairment 5,444 23,114  
Collectively evaluated for impairment 467,270 399,388  
Commercial and Industrial | Non-PCI Loans and Leases | ASU 2016-13      
Financing Receivable Allowance For Credit Losses [Line Items]      
Adjustment related to adoption of ASU 2016-13 (2,497)    
Leases Receivable      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 8,767    
Balance at end of period 15,780    
Loans receivable:      
Total loans receivable 492,527   483,879
Leases Receivable | Non-PCI Loans and Leases      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 8,767 6,303  
Adjusted balance as of January 1, 2020 14,669    
Less loans charged off 1,181 852  
Recoveries on loans receivable previously charged off (74) (90)  
Provision for credit losses 2,218 39  
Balance at end of period 15,780 5,580  
Individually evaluated for impairment 1,671 1,099  
Collectively evaluated for impairment 14,109 4,481  
Loans receivable:      
Total loans receivable 492,527 425,530  
Individually evaluated for impairment 6,393 4,783  
Collectively evaluated for impairment 486,134 420,747  
Leases Receivable | Non-PCI Loans and Leases | ASU 2016-13      
Financing Receivable Allowance For Credit Losses [Line Items]      
Adjustment related to adoption of ASU 2016-13 5,902    
Consumer      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 80    
Balance at end of period 149    
Loans receivable:      
Total loans receivable 12,090   $ 13,670
Consumer | Non-PCI Loans and Leases      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period 80 98  
Adjusted balance as of January 1, 2020 135    
Provision for credit losses 14 (9)  
Balance at end of period 149 89  
Individually evaluated for impairment 3    
Collectively evaluated for impairment 146 89  
Loans receivable:      
Total loans receivable 12,090 13,232  
Individually evaluated for impairment 1,298 1,370  
Collectively evaluated for impairment 10,792 11,862  
Consumer | Non-PCI Loans and Leases | ASU 2016-13      
Financing Receivable Allowance For Credit Losses [Line Items]      
Adjustment related to adoption of ASU 2016-13 $ 55    
Unallocated | Non-PCI Loans and Leases      
Financing Receivable Allowance For Credit Losses [Line Items]      
Balance at beginning of period   27  
Provision for credit losses   183  
Balance at end of period   210  
Collectively evaluated for impairment   $ 210