Annual report [Section 13 and 15(d), not S-K Item 405]

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

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Loans Receivable - Allowance for Credit Losses by Portfolio Segment (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Allowance for credit losses:      
Beginning balance $ 69,462    
Ending balance 70,147 $ 69,462  
Non-PCI Loans and Leases      
Allowance for credit losses:      
Beginning balance 69,462 71,523 $ 72,557
Charge-offs (11,618) (16,090) (4,722)
Recoveries 7,485 9,047 3,348
Provision (recovery) for credit losses 4,818 4,982 340
Ending balance 70,147 69,462 71,523
Real Estate      
Allowance for credit losses:      
Beginning balance 45,499    
Ending balance 45,099 45,499  
Real Estate | Non-PCI Loans and Leases      
Allowance for credit losses:      
Beginning balance 45,499 44,026 48,890
Charge-offs (1,543) (627) (1,886)
Recoveries 2,223 312 848
Provision (recovery) for credit losses (1,080) 1,788 (3,826)
Ending balance 45,099 45,499 44,026
Commercial and Industrial      
Allowance for credit losses:      
Beginning balance 10,257    
Ending balance 10,006 10,257  
Commercial and Industrial | Non-PCI Loans and Leases      
Allowance for credit losses:      
Beginning balance 10,257 15,267 12,418
Charge-offs (576) (6,657) (524)
Recoveries 3,482 7,089 1,178
Provision (recovery) for credit losses (3,157) (5,442) 2,195
Ending balance 10,006 10,257 15,267
Equipment Financing Agreements      
Allowance for credit losses:      
Beginning balance 13,706    
Ending balance 15,042 13,706  
Equipment Financing Agreements | Non-PCI Loans and Leases      
Allowance for credit losses:      
Beginning balance 13,706 12,230 11,249
Charge-offs (9,499) (8,806) (2,312)
Recoveries 1,780 1,646 1,322
Provision (recovery) for credit losses 9,055 8,636 1,971
Ending balance $ 15,042 $ 13,706 $ 12,230