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Fair Value Measurements - Summary of Carrying Amount and Fair Values of Financial Instruments Reported on the Balance Sheets (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Balance sheet assets |  |
Securities held-to-maturity, net | $ 1,081,847 | $ 928,935
Carrying Amount |  |
Balance sheet assets |  |
Securities held-to-maturity, net | 1,081,847 | 928,935
Other investments | 91,042 | 69,801
Loans held-for-sale | 681 | 110
Loans, net | 11,434,255 | 11,082,405
State tax credits, held-for-sale | 14,408 | 14,663
Servicing asset | 3,253 | 2,256
Balance sheet liabilities |  |
Certificates of deposit | 1,651,173 | 1,369,604
Subordinated debentures and notes | 93,617 | 156,551
FHLB advances | 327,000 | 0
Other borrowings | 247,006 | 280,821
Estimated fair value |  |
Balance sheet assets |  |
Securities held-to-maturity, net | 1,032,361 | 858,871
Other investments | 91,042 | 69,801
Loans held-for-sale | 681 | 110
Loans, net | 11,401,145 | 10,983,459
State tax credits, held-for-sale | 15,729 | 15,518
Servicing asset | 4,853 | 3,570
Balance sheet liabilities |  |
Certificates of deposit | 1,636,546 | 1,364,377
Subordinated debentures and notes | 92,150 | 155,102
FHLB advances | 327,000 | 0
Other borrowings | $ 223,538 | $ 258,461

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