Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income
Beginning balance (in shares) at Dec. 31, 2021		11,791,000
Beginning balance at Dec. 31, 2021	$ 705,663	$ 1,187	$ 124,228	$ (4,566)	$ 633,804	$ (48,990)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	82,650				101,928	(19,278)
Stock-based compensation expense	5,561		5,561
Stock-based compensation transactions (in shares)		40,000
Stock-based compensation transactions	35	$ 4	31
Dividends paid	(8,549)				(8,549)
Ending balance (in shares) at Dec. 31, 2022		11,831,000
Ending balance at Dec. 31, 2022	785,360	$ 1,191	129,820	(4,566)	727,183	(68,268)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	149,912				136,161	13,751
Stock-based compensation expense	7,424		7,424
Stock-based compensation transactions (in shares)		51,000
Stock-based compensation transactions	552	$ 5	547
Dividends paid	$ (10,485)				(10,485)
Ending balance (in shares) at Dec. 31, 2023	11,964,181	11,882,000
Ending balance at Dec. 31, 2023	$ 932,763	$ 1,196	137,791	(4,566)	852,859	(54,517)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	88,852				115,930	(27,078)
Stock-based compensation expense	9,141		9,141
Stock-based compensation transactions (in shares)		53,000
Stock-based compensation transactions	(60)	$ 6	(66)
Dividends paid	$ (12,442)				(12,442)
Ending balance (in shares) at Dec. 31, 2024	12,017,308	11,935,000
Ending balance at Dec. 31, 2024	$ 1,018,254	$ 1,202	$ 146,866	$ (4,566)	$ 956,347	$ (81,595)