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Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value
Less than 12 Months	$ 801,669	$ 119,581
12 Months or More	59,519	568
Total	861,188	120,149
Unrealized Loss
Less than 12 Months	(12,783)	(888)
12 Months or More	(1,843)	(5)
Total	(14,626)	(893)
State and municipal securities
Fair Value
Less than 12 Months	82,627	21,979
12 Months or More	16,617	0
Total	99,244	21,979
Unrealized Loss
Less than 12 Months	(1,651)	(258)
12 Months or More	(672)	0
Total	(2,323)	(258)
Fair Value
Less than 12 Months	0	0
12 Months or More	0	0
Total	0	0
Unrealized Loss
Less than 12 Months	0	0
12 Months or More	0	0
Total	0	0
Corporate bonds
Fair Value
Less than 12 Months	13,299	30,513
12 Months or More	2,928	0
Total	16,227	30,513
Unrealized Loss
Less than 12 Months	(201)	(137)
12 Months or More	(72)	0
Total	(273)	(137)
U.S. government and agency securities
Fair Value
Less than 12 Months	97,010	0
12 Months or More	440	568
Total	97,450	568
Unrealized Loss
Less than 12 Months	(1,234)	0
12 Months or More	(2)	(5)
Total	(1,236)	(5)
Commercial mortgage-backed securities
Fair Value
Less than 12 Months	57,703
12 Months or More	6,540
Total	64,243
Unrealized Loss
Less than 12 Months	(1,167)
12 Months or More	(281)
Total	(1,448)
Residential mortgage-backed securities
Fair Value
Less than 12 Months	409,382	23,178
12 Months or More	1,693	0
Total	411,075	23,178
Unrealized Loss
Less than 12 Months	(5,577)	(232)
12 Months or More	(28)	0
Total	(5,605)	(232)
Commercial collateralized mortgage obligations
Fair Value
Less than 12 Months	14,568
12 Months or More	0
Total	14,568
Unrealized Loss
Less than 12 Months	(330)
12 Months or More	0
Total	(330)
Residential collateralized mortgage obligations
Fair Value
Less than 12 Months	127,080	43,911
12 Months or More	31,301	0
Total	158,381	43,911
Unrealized Loss
Less than 12 Months	(2,623)	(261)
12 Months or More	(788)	0
Total	$ (3,411)	$ (261)

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