Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Securities held-to-maturity, amortized cost	$ 58,730
Securities held-to-maturity, amortized cost	57,868	$ 57,832
Securities held-to-maturity, fair value	62,029	63,529
Securities held-to-maturity, gross Unrecognized gains	3,299	4,790
Securities held-to-maturity, allowance for credit losses	(862)	(907)
Securities available for sale, amortized cost, total other securities	786,425	646,112
Securities available for sale, fair value	777,236	647,974
Securities available for sale, gross unrealized gains	3,031	9,628
Securities available for sale, gross unrealized losses	12,220	7,766
Other Securities [Member]
Securities available for sale, amortized cost, total other securities	1,695	1,295
Securities available for sale, fair value	1,695	1,295
Securities available for sale, gross unrealized gains	0	0
Securities available for sale, gross unrealized losses	0	0
US Government Agencies Debt Securities [Member]
Securities available for sale, amortized cost, total other securities	5,599	6,452
Securities available for sale, fair value	5,590	6,453
Securities available for sale, gross unrealized gains	0	2
Securities available for sale, gross unrealized losses	9	1
Corporate Debt Securities [Member]
Securities available for sale, amortized cost, total other securities	107,423	130,000
Securities available for sale, fair value	104,370	123,865
Securities available for sale, gross unrealized gains	136	131
Securities available for sale, gross unrealized losses	3,189	6,266
US States and Political Subdivisions Debt Securities [Member]
Securities held-to-maturity, amortized cost	50,836	50,825
Securities held-to-maturity, fair value	53,362	54,538
Securities held-to-maturity, gross Unrecognized gains	2,526	3,713
Mutual Fund Debt Securities [Member]
Securities available for sale, amortized cost, total other securities	12,485	12,703
Securities available for sale, fair value	12,485	12,703
Securities available for sale, gross unrealized gains	0	0
Securities available for sale, gross unrealized losses	0	0
Collateralized Debt Obligations [Member]
Securities available for sale, amortized cost, total other securities	81,166	100,561
Securities available for sale, fair value	80,912	99,198
Securities available for sale, gross unrealized gains	1	0
Securities available for sale, gross unrealized losses	255	1,363
Other Debt Obligations [Member]
Securities held-to-maturity, amortized cost	50,836	50,825
Securities held-to-maturity, amortized cost	49,974	49,918
Securities held-to-maturity, fair value	53,362	54,538
Securities held-to-maturity, gross Unrecognized gains	2,526	3,713
Securities held-to-maturity, allowance for credit losses	(862)	(907)
Securities available for sale, fair value	205,052	243,514
Collateralized Mortgage Backed Securities [Member]
Securities held-to-maturity, amortized cost	7,894	7,914
Securities held-to-maturity, amortized cost	7,894	7,914
Securities held-to-maturity, fair value	8,667	8,991
Securities held-to-maturity, gross Unrecognized gains	773	1,077
Securities available for sale, amortized cost, total other securities	578,057	395,101
Securities available for sale, fair value	572,184	404,460
Securities available for sale, gross unrealized gains	2,894	9,495
Securities available for sale, gross unrealized losses	8,767	136
REMIC and CMO [Member]
Securities available for sale, amortized cost, total other securities	210,948	175,142
Securities available for sale, fair value	208,509	180,877
Securities available for sale, gross unrealized gains	1,217	5,735
Securities available for sale, gross unrealized losses	3,656	0
GNMA [Member]
Securities available for sale, amortized cost, total other securities	10,572	13,009
Securities available for sale, fair value	10,286	13,053
Securities available for sale, gross unrealized gains	30	66
Securities available for sale, gross unrealized losses	316	22
FNMA [Member]
Securities held-to-maturity, amortized cost	7,894	7,914
Securities held-to-maturity, fair value	8,667	8,991
Securities held-to-maturity, gross Unrecognized gains	773	1,077
Securities available for sale, amortized cost, total other securities	203,777	143,154
Securities available for sale, fair value	202,938	146,169
Securities available for sale, gross unrealized gains	1,321	3,046
Securities available for sale, gross unrealized losses	2,160	31
FHLMC [Member]
Securities available for sale, amortized cost, total other securities	152,760	63,796
Securities available for sale, fair value	150,451	64,361
Securities available for sale, gross unrealized gains	326	648
Securities available for sale, gross unrealized losses	2,635	83
Available for Sale Securities Excluding Mortgage Backed Securities [Member]
Securities available for sale, amortized cost, total other securities	208,368	251,011
Securities available for sale, fair value	205,052	243,514
Securities available for sale, gross unrealized gains	137	133
Securities available for sale, gross unrealized losses	$ 3,453	$ 7,630

Amount of investment in debt security measured at amortized cost, before allowance for credit losses.

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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