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Loans - Loans (Detail) (Parenthetical) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans receivable | $ 6,177,840 | $ 6,182,434
Payment Protection Program |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans receivable | 100 | 200
Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans receivable | 4,849,039 | 4,852,400
Real Estate | Home Equity Loans and Lines - Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans receivable | 1,500 | 1,900
Real Estate | Personal Loans - Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans receivable | $ 5,300 | $ 4,500

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