Quarterly report pursuant to Section 13 or 15(d)

Loans - Allowance for Credit Losses by Portfolio Segment as a Percentage of Recorded Total Allowance for Credit Losses and Aggregate Recorded Investment of Loans Receivable (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 Loans Receivable (Detail) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 68,270 $ 69,462
Percentage of Total Allowance 100.00% 100.00%
Total Loans $ 6,177,840 $ 6,182,434
Percentage of Total Loans 100.00% 100.00%
Residential    
Financing Receivable Allowance For Credit Losses [Line Items]    
Total Loans   $ 962,661
Real Estate    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 42,584 $ 45,499
Percentage of Total Allowance 62.40% 65.50%
Total Loans $ 4,849,039 $ 4,852,400
Percentage of Total Loans 78.50% 78.50%
Real Estate | Retail    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 10,095 $ 10,264
Percentage of Total Allowance 14.80% 14.80%
Total Loans $ 1,091,059 $ 1,107,360
Percentage of Total Loans 17.70% 17.90%
Real Estate | Hospitality    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 11,668 $ 15,534
Percentage of Total Allowance 17.10% 22.40%
Total Loans $ 740,160 $ 740,519
Percentage of Total Loans 12.00% 12.00%
Real Estate | Office    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 3,740 $ 3,024
Percentage of Total Allowance 5.50% 4.40%
Total Loans $ 575,847 $ 574,981
Percentage of Total Loans 9.30% 9.30%
Real Estate | Other    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 8,270 $ 8,663
Percentage of Total Allowance 12.10% 12.40%
Total Loans $ 1,367,395 $ 1,366,534
Percentage of Total Loans 22.10% 22.10%
Real Estate | Total commercial property loans    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 33,773 $ 37,485
Percentage of Total Allowance 49.50% 54.00%
Total Loans $ 3,774,461 $ 3,789,394
Percentage of Total Loans 61.10% 61.30%
Real Estate | Construction    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 2,611 $ 2,756
Percentage of Total Allowance 3.80% 4.00%
Total Loans $ 104,216 $ 100,345
Percentage of Total Loans 1.70% 1.60%
Real Estate | Residential    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 6,200 $ 5,258
Percentage of Total Allowance 9.10% 7.50%
Total Loans $ 970,362 $ 962,661
Percentage of Total Loans 15.70% 15.60%
Commercial and Industrial    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 11,836 $ 10,257
Percentage of Total Allowance 17.30% 14.80%
Total Loans $ 774,851 $ 747,819
Percentage of Total Loans 12.50% 12.10%
Equipment Financing Agreements    
Financing Receivable Allowance For Credit Losses [Line Items]    
Allowance Amount $ 13,850 $ 13,706
Percentage of Total Allowance 20.30% 19.70%
Total Loans $ 553,950 $ 582,215
Percentage of Total Loans 9.00% 9.40%