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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, 2023 | Dec. 31, 2022
--- | --- | ---
Balance sheet assets |  |
Securities held-to-maturity, net | $ 730,655 | $ 709,915
Carrying Amount |  |
Balance sheet assets |  |
Securities held-to-maturity, net | 730,655 | 709,915
Other investments | 59,123 | 61,123
Loans held for sale | 212 | 1,228
Loans, net | 10,474,687 | 9,600,206
State tax credits held for sale | 26,765 | 27,700
Servicing asset | 3,202 | 3,648
Balance sheet liabilities |  |
Certificates of deposit | 1,470,678 | 530,708
Subordinated debentures and notes | 155,844 | 155,433
FHLB advances | 0 | 100,000
Other borrowings | 182,372 | 324,119
Estimated fair value |  |
Balance sheet assets |  |
Securities held-to-maturity, net | 622,660 | 628,517
Other investments | 59,123 | 61,123
Loans held for sale | 212 | 1,228
Loans, net | 10,244,122 | 9,328,844
State tax credits held for sale | 27,529 | 28,880
Servicing asset | 4,058 | 3,905
Balance sheet liabilities |  |
Certificates of deposit | 1,456,118 | 512,229
Subordinated debentures and notes | 153,975 | 152,679
FHLB advances | 0 | 100,004
Other borrowings | $ 157,173 | $ 324,119

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