Fair Value of Financial Instruments - Fair Value Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Securities available for sale, fair value	$ 839,869	$ 777,236
Collateralized Mortgage Backed Securities [Member]
Securities available for sale, fair value	553,828	572,184
Other Securities [Member]
Securities available for sale, fair value	1,740	1,695
Fair Value, Measurements, Recurring [Member]
Total assets	875,505	787,919
Financial and Nonfinancial Liabilities, Fair Value Disclosure	69,540	81,543
Fair Value, Measurements, Recurring [Member] \| Collateralized Mortgage Backed Securities [Member]
Securities available for sale, fair value	553,828	572,184
Fair Value, Measurements, Recurring [Member] \| Other Securities [Member]
Securities available for sale, fair value	286,041	205,052
Fair Value, Measurements, Recurring [Member] \| Interest Rate Swap [Member]
Interest Rate Swaps, Net Amount	35,636	10,683
Interest Rate Swaps, Net Amount	11,585	25,071
Fair Value, Measurements, Recurring [Member] \| Junior Subordinated Debentures [Member]
Borrowings	57,955	56,472
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Total assets	11,937	12,485
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Other Securities [Member]
Securities available for sale, fair value	11,937	12,485
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Total assets	861,828	773,739
Financial and Nonfinancial Liabilities, Fair Value Disclosure	11,585	25,071
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Collateralized Mortgage Backed Securities [Member]
Securities available for sale, fair value	553,828	572,184
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Other Securities [Member]
Securities available for sale, fair value	272,364	190,872
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Interest Rate Swaps, Net Amount	35,636	10,683
Interest Rate Swaps, Net Amount	11,585	25,071
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Total assets	1,740	1,695
Financial and Nonfinancial Liabilities, Fair Value Disclosure	57,955	56,472
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Other Securities [Member]
Securities available for sale, fair value	1,740	1,695
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Junior Subordinated Debentures [Member]
Borrowings	57,955	56,472
Fair Value, Measurements, Nonrecurring [Member]
Total assets	11,967	11,026
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Total assets	$ 11,967	$ 11,026

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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