Investment Securities - Available for Sale Securities Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value
Less Than 12 Months	$ 252,640	$ 688,212
12 Months or Greater	162,216	27,099
Total	414,856	715,311
Gross Unrealized Losses
Less Than 12 Months	(26,836)	(11,044)
12 Months or Greater	(30,952)	(865)
Total	(57,788)	(11,909)
U.S. treasury securities
Fair Value
Less Than 12 Months	841	87,302
12 Months or Greater	789	0
Total	1,630	87,302
Gross Unrealized Losses
Less Than 12 Months	(7)	(1,087)
12 Months or Greater	(5)	0
Total	(12)	(1,087)
U.S. agency
Fair Value
Less Than 12 Months	4,918	10,969
12 Months or Greater	0	0
Total	4,918	10,969
Gross Unrealized Losses
Less Than 12 Months	(487)	(140)
12 Months or Greater	0	0
Total	(487)	(140)
Asset backed securities
Fair Value
Less Than 12 Months	14,785
12 Months or Greater	11,387
Total	26,172
Gross Unrealized Losses
Less Than 12 Months	(262)
12 Months or Greater	(485)
Total	(747)
State, county & municipal securities
Fair Value
Less Than 12 Months	50,600	180,551
12 Months or Greater	52,690	5,970
Total	103,290	186,521
Gross Unrealized Losses
Less Than 12 Months	(9,562)	(3,131)
12 Months or Greater	(13,620)	(225)
Total	(23,182)	(3,356)
Corporate debt securities
Fair Value
Less Than 12 Months	26,326	31,977
12 Months or Greater	15,086	0
Total	41,412	31,977
Gross Unrealized Losses
Less Than 12 Months	(2,538)	(265)
12 Months or Greater	(1,579)	0
Total	(4,117)	(265)
Mortgage-backed securities
Fair Value
Less Than 12 Months	155,170	377,413
12 Months or Greater	82,264	21,129
Total	237,434	398,542
Gross Unrealized Losses
Less Than 12 Months	(13,980)	(6,421)
12 Months or Greater	(15,263)	(640)
Total	$ (29,243)	$ (7,061)