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

Loans - Allowance for Credit Losses by Portfolio Segment as a Percentage of Recorded Total Allowance for Credit Losses and Aggregate Recorded Investment of Total Loans (Detail)

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Loans - Allowance for Credit Losses by Portfolio Segment as a Percentage of Recorded Total Allowance for Credit Losses and Aggregate Recorded Investment of Total Loans (Detail) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 69,903 $ 70,147
% of Total Allowance 100.00% 100.00%
Total Loans $ 6,563,368 $ 6,251,377
% of Total Loans 100.00% 100.00%
Residential    
Financing Receivable Allowance For Credit Losses [Line Items]    
Total Loans $ 1,049,872 $ 951,302
Real Estate    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 51,670 $ 45,099
% of Total Allowance 73.90% 64.30%
Total Loans $ 5,079,977 $ 4,900,924
% of Total Loans 77.50% 78.50%
Real Estate | Retail    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 9,999 $ 10,171
% of Total Allowance 14.30% 14.50%
Total Loans $ 1,132,439 $ 1,068,978
% of Total Loans 17.30% 17.10%
Real Estate | Hospitality    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 8,737 $ 15,302
% of Total Allowance 12.50% 21.80%
Total Loans $ 847,989 $ 848,134
% of Total Loans 12.90% 13.60%
Real Estate | Office    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 5,700 $ 3,935
% of Total Allowance 8.20% 5.60%
Total Loans $ 503,268 $ 568,861
% of Total Loans 7.70% 9.10%
Real Estate | Other    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 14,078 $ 8,243
% of Total Allowance 20.10% 11.80%
Total Loans $ 1,532,667 $ 1,385,051
% of Total Loans 23.40% 22.20%
Real Estate | Total commercial property loans    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 38,514 $ 37,651
% of Total Allowance 55.10% 53.70%
Total Loans $ 4,016,363 $ 3,871,024
% of Total Loans 61.30% 62.00%
Real Estate | Construction    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 208 $ 1,664
% of Total Allowance 0.30% 2.40%
Total Loans $ 13,742 $ 78,598
% of Total Loans 0.20% 1.30%
Real Estate | Residential    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 12,948 $ 5,784
% of Total Allowance 18.50% 8.20%
Total Loans $ 1,049,872 $ 951,302
% of Total Loans 16.00% 15.20%
Commercial and Industrial    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 7,792 $ 10,006
% of Total Allowance 11.10% 14.30%
Total Loans $ 1,074,908 $ 863,431
% of Total Loans 16.40% 13.80%
Equipment Financing Agreements    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 10,441 $ 15,042
% of Total Allowance 15.00% 21.40%
Total Loans $ 408,483 $ 487,022
% of Total Loans 6.10% 7.70%