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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 | Sep. 30, 2022 | Dec. 31, 2021
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Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 71,584 | $ 72,557
Percentage of Total Allowance | 100.00% | 100.00%
Loans | $ 5,800,991 | $ 5,151,541
Percentage of Total Loans | 100.00% | 100.00%
Residential |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Loans | $ 649,589 | $ 400,546
Real Estate |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 45,524 | $ 48,890
Percentage of Total Allowance | 63.60% | 67.40%
Loans | $ 4,503,534 | $ 4,102,411
Percentage of Total Loans | 77.70% | 79.60%
Real Estate | Retail |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 7,758 | $ 6,579
Percentage of Total Allowance | 10.80% | 9.10%
Loans | $ 1,044,287 | $ 970,134
Percentage of Total Loans | 18.00% | 18.80%
Real Estate | Hospitality |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 15,417 | $ 22,670
Percentage of Total Allowance | 21.50% | 31.20%
Loans | $ 662,438 | $ 717,692
Percentage of Total Loans | 11.40% | 13.90%
Real Estate | Other |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 15,450 | $ 15,065
Percentage of Total Allowance | 21.70% | 20.80%
Loans | $ 2,044,878 | $ 1,919,033
Percentage of Total Loans | 35.30% | 37.30%
Real Estate | Total commercial property loans |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 38,625 | $ 44,314
Percentage of Total Allowance | 54.00% | 61.10%
Loans | $ 3,751,603 | $ 3,606,859
Percentage of Total Loans | 64.70% | 70.00%
Real Estate | Construction |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 4,034 | $ 4,078
Percentage of Total Allowance | 5.60% | 5.60%
Loans | $ 102,342 | $ 95,006
Percentage of Total Loans | 1.80% | 1.80%
Real Estate | Residential |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 2,865 | $ 498
Percentage of Total Allowance | 4.00% | 0.70%
Loans | $ 649,589 | $ 400,546
Percentage of Total Loans | 11.20% | 7.80%
Commercial and Industrial |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 14,876 | $ 12,418
Percentage of Total Allowance | 20.80% | 17.10%
Loans | $ 732,033 | $ 561,831
Percentage of Total Loans | 12.60% | 10.90%
Equipment Financing Agreements |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Allowance Amount | $ 11,184 | $ 11,249
Percentage of Total Allowance | 15.60% | 15.50%
Loans | $ 565,424 | $ 487,299
Percentage of Total Loans | 9.70% | 9.50%

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