Investment Securities - Available for Sale Securities Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value
Less Than 12 Months	$ 567,181	$ 688,212
12 Months or Greater	59,174	27,099
Total	626,355	715,311
Gross Unrealized Losses
Less Than 12 Months	(54,342)	(11,044)
12 Months or Greater	(10,150)	(865)
Total	(64,492)	(11,909)
U.S. treasury securities
Fair Value
Less Than 12 Months	89,838	87,302
12 Months or Greater	0	0
Total	89,838	87,302
Gross Unrealized Losses
Less Than 12 Months	(6,063)	(1,087)
12 Months or Greater	0	0
Total	(6,063)	(1,087)
U.S. agency
Fair Value
Less Than 12 Months	6,132	10,969
12 Months or Greater	0	0
Total	6,132	10,969
Gross Unrealized Losses
Less Than 12 Months	(381)	(140)
12 Months or Greater	0	0
Total	(381)	(140)
Asset backed securities
Fair Value
Less Than 12 Months	23,162
12 Months or Greater	3,976
Total	27,138
Gross Unrealized Losses
Less Than 12 Months	(594)
12 Months or Greater	(251)
Total	(845)
State, county & municipal securities
Fair Value
Less Than 12 Months	143,652	180,551
12 Months or Greater	14,227	5,970
Total	157,879	186,521
Gross Unrealized Losses
Less Than 12 Months	(23,724)	(3,131)
12 Months or Greater	(3,140)	(225)
Total	(26,864)	(3,356)
Corporate debt securities
Fair Value
Less Than 12 Months	43,294	31,977
12 Months or Greater	0	0
Total	43,294	31,977
Gross Unrealized Losses
Less Than 12 Months	(2,471)	(265)
12 Months or Greater	0	0
Total	(2,471)	(265)
Mortgage-backed securities
Fair Value
Less Than 12 Months	261,103	377,413
12 Months or Greater	40,971	21,129
Total	302,074	398,542
Gross Unrealized Losses
Less Than 12 Months	(21,109)	(6,421)
12 Months or Greater	(6,759)	(640)
Total	$ (27,868)	$ (7,061)