Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Non-Owner Changes to Equity
Balance (in shares) at Dec. 31, 2019		63,873,000		13,051,000
Balance at Dec. 31, 2019	$ 1,270,528	$ 639	$ 489,282	$ (498,074)	$ 1,489,176	$ (210,495)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	151,555				63,375	88,180
Dividends declared	(32,402)				(32,402)
Common stock repurchases (in shares)				396,000
Common stock repurchases	(15,550)			$ (15,550)
Employee stock plans (in shares)				83,000
Employee stock plans	8,546	$ 3	12,249	$ (3,368)	(338)
Balance (in shares) at Dec. 31, 2020		64,171,000		13,530,000
Balance at Dec. 31, 2020	1,382,677	$ 642	501,531	$ (516,992)	1,519,811	(122,315)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	70,350				99,873	(29,523)
Dividends declared	(32,402)				(32,402)
Residual interest in subsidiary	2,177		2,177
Common stock repurchases (in shares)				100,000
Common stock repurchases	(5,229)			$ (5,229)
Employee stock plans (in shares)		173,000		28,000
Employee stock plans	11,193	$ 1	12,854	$ (1,421)	(241)
Balance (in shares) at Dec. 31, 2021		64,344,000		13,658,000
Balance at Dec. 31, 2021	1,428,766	$ 643	516,562	$ (523,642)	1,587,041	(151,838)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(55,183)				13,479	(68,662)
Dividends declared	(32,376)				(32,376)
Common stock repurchases (in shares)				200,000
Common stock repurchases	(6,721)			$ (6,721)
Employee stock plans (in shares)		137,000		33,000
Employee stock plans	11,841	$ 2	13,229	$ (1,144)	(246)
Balance (in shares) at Dec. 31, 2022		64,481,000		13,891,000
Balance at Dec. 31, 2022	$ 1,346,327	$ 645	$ 529,791	$ (531,507)	$ 1,567,898	$ (220,500)