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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 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Balance sheet assets |  |
Securities available-for-sale | $ 1,135,317 | $ 721,369
Securities held-to-maturity | 181,166 | 65,679
Carrying Amount |  |
Balance sheet assets |  |
Securities held-to-maturity | 181,166 | 65,679
Other investments | 38,044 | 26,654
Loans held for sale | 5,570 | 392
Loans, net | 5,271,049 | 4,306,525
State tax credits held for sale | 36,802 | 37,587
Balance sheet liabilities |  |
Certificates of deposit | 826,447 | 684,429
Subordinated debentures and notes | 141,258 | 118,156
FHLB advances | 222,406 | 70,000
Other borrowings | 265,172 | 223,450
Estimated fair value |  |
Balance sheet assets |  |
Securities held-to-maturity | 181,939 | 63,934
Other investments | 38,044 | 26,654
Loans held for sale | 5,570 | 392
Loans, net | 5,205,651 | 4,253,239
State tax credits held for sale | 39,046 | 39,169
Balance sheet liabilities |  |
Certificates of deposit | 825,203 | 679,491
Subordinated debentures and notes | 130,985 | 106,316
FHLB advances | 221,402 | 70,000
Other borrowings | $ 265,172 | $ 223,260

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