Fair Value of Assets and Liabilities - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets:
Securities available-for-sale, at fair value		$ 483,893
Securities available-for-sale, at fair value, post ASU 2019-04	$ 385,131
Securities held to maturity, fair value	256,325	260,613
Liabilities:
Noninterest-bearing demand deposits	923,763	1,072,449
Interest-bearing demand deposits	993,717	965,911
Time deposits	562,620	455,259
Carrying Amount [Member]
Assets:
Cash and cash equivalents	400,258	266,424
Securities available-for-sale, at fair value		483,893
Securities available-for-sale, at fair value, post ASU 2019-04	385,131
Securities held to maturity, fair value	282,313	285,949
Other investments	13,805	15,530
Loans, net and loans held for sale	3,348,046	3,232,045
Derivative financial instruments and interest rate swap agreements, asset	16,191	11,834
Liabilities:
Noninterest-bearing demand deposits	923,763	1,072,449
Interest-bearing demand deposits	993,717	965,911
Money market and savings deposits	1,766,409	1,583,481
Time deposits	562,620	455,259
Borrowings	14,117	41,860
Subordinated debt	42,078	42,015
Derivative financial instruments and interest rate swap agreements, liability	17,647	13,110
Estimated Fair Value [Member]
Assets:
Cash and cash equivalents	400,258	266,424
Securities available-for-sale, at fair value		483,893
Securities available-for-sale, at fair value, post ASU 2019-04	385,131
Securities held to maturity, fair value	256,325	260,613
Loans, net and loans held for sale	3,210,772	3,143,921
Derivative financial instruments and interest rate swap agreements, asset	16,191	11,834
Liabilities:
Noninterest-bearing demand deposits	923,763	1,072,449
Interest-bearing demand deposits	993,717	965,911
Money market and savings deposits	1,766,409	1,583,481
Time deposits	558,744	451,899
Borrowings	14,117	41,860
Subordinated debt	39,650	40,439
Derivative financial instruments and interest rate swap agreements, liability	17,647	13,110
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash and cash equivalents	400,258	266,424
Fair Value, Inputs, Level 2 [Member]
Assets:
Securities available-for-sale, at fair value		483,893
Securities available-for-sale, at fair value, post ASU 2019-04	385,131
Securities held to maturity, fair value	256,325	260,613
Derivative financial instruments and interest rate swap agreements, asset	16,191	11,834
Liabilities:
Noninterest-bearing demand deposits	923,763	1,072,449
Interest-bearing demand deposits	993,717	965,911
Money market and savings deposits	1,766,409	1,583,481
Time deposits	558,744	451,899
Borrowings	14,117	41,860
Derivative financial instruments and interest rate swap agreements, liability	17,647	13,110
Fair Value, Inputs, Level 3 [Member]
Assets:
Loans, net and loans held for sale	3,210,772	3,143,921
Liabilities:
Subordinated debt	$ 39,650	$ 40,439