Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2021		31,950,092
Beginning balance at Dec. 31, 2021	$ 1,350,775	$ 316	$ 434,640	$ 930,061	$ (14,242)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	45,744			45,744
Other comprehensive income, net of tax	(107,482)				(107,482)
Stock-based compensation expense	2,966		2,966
Issuance of common stock related to options exercised, net of shares withheld for payroll taxes (in shares)		1,789
Issuance of common stock related to options exercised, net of shares withheld for payroll taxes	19		19
Vesting of time based stock awards issued at date of grant, net of shares withheld for payroll taxes (in shares)		(62,228)
Vesting of time-based stock awards issued at date of grant, net of shares withheld for payroll taxes		$ 2	(2)
Vesting of performance-based stock awards, net of shares withheld for payroll taxes (in shares)		21,026
Time based stock awards granted (in shares)		165,416
Issuance of common stock related to employee stock purchase plan (in shares)		3,379
Issuance of common stock related to employee stock purchase plan	197		197
Cash dividends declared	(12,665)			(12,665)
Ending balance (in shares) at Mar. 31, 2022		32,079,474
Ending balance at Mar. 31, 2022	$ 1,279,554	$ 318	437,820	963,140	(121,724)
Beginning balance (in shares) at Dec. 31, 2022	31,346,903	31,346,903
Beginning balance at Dec. 31, 2022	$ 1,228,321	$ 310	412,303	1,015,215	(199,507)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	24,234			24,234
Other comprehensive income, net of tax	18,593				18,593
Stock-based compensation expense	2,948		2,948
Vesting of time based stock awards issued at date of grant, net of shares withheld for payroll taxes (in shares)		(37,104)
Vesting of time-based stock awards issued at date of grant, net of shares withheld for payroll taxes		$ 2	(2)
Vesting of performance-based stock awards, net of shares withheld for payroll taxes (in shares)		27,296
Time based stock awards granted (in shares)		171,534
Issuance of common stock related to employee stock purchase plan (in shares)		3,018
Issuance of common stock related to employee stock purchase plan	133		133
Cash dividends declared	(13,897)			(13,897)
Common stock repurchased (in shares)		(400,000)
Common stock repurchased	$ (18,374)	$ (4)	(18,370)
Ending balance (in shares) at Mar. 31, 2023	31,111,647	31,111,647
Ending balance at Mar. 31, 2023	$ 1,241,958	$ 308	$ 397,012	$ 1,025,552	$ (180,914)