Interim Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	AdditionalPaid-in Capital	Treasury Stock	Retained Earnings	AccumulatedOtherComprehensive Loss
Beginning balance ( in shares) at Dec. 31, 2020		11,727
Beginning balance at Dec. 31, 2020	$ 635,003	$ 1,181	$ 118,528	$ (4,566)	$ 560,186	$ (40,326)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	15,876				17,462	(1,586)
Stock-based compensation expense	1,240		1,240
Stock-based compensation transactions (in shares)		29
Stock-based compensation transactions	776	$ 3	773
Dividends paid	(1,654)				(1,654)
Ending balance (in shares) at Mar. 31, 2021		11,756
Ending balance at Mar. 31, 2021	651,241	$ 1,184	120,541	(4,566)	575,994	(41,912)
Beginning balance ( in shares) at Dec. 31, 2021		11,791
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	22,195				18,470	3,725
Stock-based compensation expense	1,371		1,371
Stock-based compensation transactions (in shares)		20
Stock-based compensation transactions	84	$ 2	82
Dividends paid	(2,133)				(2,133)
Ending balance (in shares) at Mar. 31, 2022		11,811
Ending balance at Mar. 31, 2022	$ 727,180	$ 1,189	$ 125,681	$ (4,566)	$ 650,141	$ (45,265)