Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Total
Beginning balance at Dec. 29, 2018	$ 656	$ 116,339	$ (23,502)	$ 806,556	$ 900,049
Balance (in shares) at Dec. 29, 2018	65,638,701
Increase (Decrease) in Stockholders' Equity
Foreign currency translation			1,458		1,458
Change in pension benefit (net of of income taxes)			162		162
Net income				16,791	16,791
Share-based compensation		580			580
Issuance of common stock for share-based compensation	$ 1	(906)			(905)
Issuance of common stock for share-based compensation (in shares)	65,928
Repurchase of common stock	$ (4)	(9,996)			(10,000)
Repurchase of common stock (in shares)	(407,022)
Dividends declared on common stock		(31,016)			(31,016)
Ending balance at Mar. 30, 2019	$ 653	$ 75,001	(21,882)	823,347	877,119
Balance (in shares) at Mar. 30, 2019	65,297,607
Beginning balance at Dec. 28, 2019	$ 640		(31,894)	843,796	$ 812,542
Balance (in shares) at Dec. 28, 2019	64,044,649				64,044,649
Increase (Decrease) in Stockholders' Equity
Foreign currency translation			(14,349)		$ (14,349)
Change in pension benefit (net of of income taxes)			296		296
Net income				28,092	28,092
Share-based compensation				163	163
Issuance of common stock for share-based compensation	$ 1			(1)
Issuance of common stock for share-based compensation (in shares)	75,848
Dividends declared on common stock				(30,457)	(30,457)
Ending balance at Mar. 28, 2020	$ 641		$ (45,947)	$ 841,593	$ 796,287
Balance (in shares) at Mar. 28, 2020	64,120,497				64,120,497