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Income Taxes - Differences Between Tax Basis of Assets and Liabilities (Detail) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Deferred tax assets: |  |
Allowance for credit losses | $ 77,614 | $ 76,221
Deferred compensation | 3,593 | 6,783
Stock compensation | 3,579 | 4,981
Non-accrual interest income | 1,964 | 1,798
Real estate owned | 311 | 674
Unrealized loss on investment securities, available-for-sale | 69,594 | 79,847
Loan discounts | 2,944 | 3,323
Investments | 23,605 | 26,042
Accelerated depreciation on premises and equipment | 1,190 | 664
Other | 14,486 | 14,634
Gross deferred tax assets | 198,880 | 214,967
Deferred tax liabilities: |  |
Tax basis on acquisitions | 8,326 | 7,439
Core deposit intangibles | 8,555 | 8,997
FHLB dividends | 1,932 | 1,919
Other | 9,947 | 9,915
Gross deferred tax liabilities | 28,760 | 28,270
Net deferred tax assets | $ 170,120 | $ 186,697

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