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Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Securities held-to-maturity, amortized cost	$ 75,200
Securities held-to-maturity, amortized cost	74,115		$ 57,868
Securities held-to-maturity, fair value	64,560		62,029
Securities held-to-maturity, gross Unrecognized gains			3,299
Securities held-to-maturity, gross Unrecognized losses	10,640
Securities held-to-maturity, allowance for credit losses	(1,085)	$ (986)	(862)	$ (844)	$ (915)	$ (907)
Securities available for sale, amortized cost, total other securities	930,362		786,425
Securities available for sale, fair value	857,654		777,236
Securities available for sale, gross unrealized gains	126		3,031
Securities available for sale, gross unrealized losses	72,834		12,220
Other Securities [Member]
Securities available for sale, amortized cost, total other securities	1,662		1,695
Securities available for sale, fair value	1,662		1,695
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	84,463		5,599
Securities available for sale, fair value	83,039		5,590
Securities available for sale, gross unrealized gains	10		0
Securities available for sale, gross unrealized losses	1,434		9
Corporate Debt Securities [Member]
Securities available for sale, amortized cost, total other securities	133,927		107,423
Securities available for sale, fair value	124,468		104,370
Securities available for sale, gross unrealized gains	72		136
Securities available for sale, gross unrealized losses	9,531		3,189
US States and Political Subdivisions Debt Securities [Member]
Securities held-to-maturity, amortized cost	67,315		50,836
Securities held-to-maturity, fair value	57,064		53,362
Securities held-to-maturity, gross Unrecognized gains			2,526
Securities held-to-maturity, gross Unrecognized losses	10,251
Mutual Fund Debt Securities [Member]
Securities available for sale, amortized cost, total other securities	11,573		12,485
Securities available for sale, fair value	11,573		12,485
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	131,094		81,166
Securities available for sale, fair value	125,978		80,912
Securities available for sale, gross unrealized gains	0		1
Securities available for sale, gross unrealized losses	5,116		255
Other Debt Obligations [Member]
Securities held-to-maturity, amortized cost	67,315		50,836
Securities held-to-maturity, amortized cost	66,230		49,974
Securities held-to-maturity, fair value	57,064		53,362
Securities held-to-maturity, gross Unrecognized gains			2,526
Securities held-to-maturity, gross Unrecognized losses	10,251
Securities held-to-maturity, allowance for credit losses	(1,085)		(862)
Securities available for sale, fair value	346,720		205,052
Collateralized Mortgage Backed Securities [Member]
Securities held-to-maturity, amortized cost	7,885		7,894
Securities held-to-maturity, amortized cost	7,885		7,894
Securities held-to-maturity, fair value	7,496		8,667
Securities held-to-maturity, gross Unrecognized gains			773
Securities held-to-maturity, gross Unrecognized losses	389
Securities available for sale, amortized cost, total other securities	567,643		578,057
Securities available for sale, fair value	510,934		572,184
Securities available for sale, gross unrealized gains	44		2,894
Securities available for sale, gross unrealized losses	56,753		8,767
REMIC and CMO [Member]
Securities available for sale, amortized cost, total other securities	187,243		210,948
Securities available for sale, fair value	169,144		208,509
Securities available for sale, gross unrealized gains	6		1,217
Securities available for sale, gross unrealized losses	18,105		3,656
GNMA [Member]
Securities available for sale, amortized cost, total other securities	9,638		10,572
Securities available for sale, fair value	8,257		10,286
Securities available for sale, gross unrealized gains	12		30
Securities available for sale, gross unrealized losses	1,393		316
FNMA [Member]
Securities held-to-maturity, amortized cost	7,885		7,894
Securities held-to-maturity, fair value	7,496		8,667
Securities held-to-maturity, gross Unrecognized gains			773
Securities held-to-maturity, gross Unrecognized losses	389
Securities available for sale, amortized cost, total other securities	209,747		203,777
Securities available for sale, fair value	189,975		202,938
Securities available for sale, gross unrealized gains	5		1,321
Securities available for sale, gross unrealized losses	19,777		2,160
FHLMC [Member]
Securities available for sale, amortized cost, total other securities	161,015		152,760
Securities available for sale, fair value	143,558		150,451
Securities available for sale, gross unrealized gains	21		326
Securities available for sale, gross unrealized losses	17,478		2,635
Available for Sale Securities Excluding Mortgage Backed Securities [Member]
Securities available for sale, amortized cost, total other securities	362,719		208,368
Securities available for sale, fair value	346,720		205,052
Securities available for sale, gross unrealized gains	82		137
Securities available for sale, gross unrealized losses	$ 16,081		$ 3,453

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