Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock at Cost	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 28, 2019		68,083,419			28,609,926
Beginning Balance at Dec. 28, 2019	$ 721,469	$ 681	$ 226,123	$ 1,962,161	$ (1,465,284)	$ (2,212)
Beginning Balance (Accounting Standards Update 2016-13) at Dec. 28, 2019	(702)			(702)
Net income	40,895			40,895
Dividends	(7,336)			(7,336)
Purchases of common stock (in shares)					1,178,970
Purchases of common stock	(115,962)				$ (115,962)
Issuance of stock related to stock-based compensation plans (in shares)		84,063			8,078
Issuance of stock related to stock-based compensation plans	(2,419)	$ 1	(1,781)		$ (639)
Stock-based compensation	631		631
Other comprehensive (loss) income	(9,481)					(9,481)
Ending Balance (in shares) at Mar. 28, 2020		68,167,482			29,796,974
Ending Balance at Mar. 28, 2020	627,095	$ 682	224,973	1,995,018	$ (1,581,885)	(11,693)
Beginning Balance (in shares) at Dec. 26, 2020		68,183,702			29,797,639
Beginning Balance at Dec. 26, 2020	691,835	$ 682	228,875	2,046,238	$ (1,581,961)	(1,999)
Net income	77,240			77,240
Dividends	(8,067)			(8,067)
Issuance of stock related to stock-based compensation plans (in shares)		28,594			6,087
Issuance of stock related to stock-based compensation plans	(1,164)		(307)		$ (857)
Stock-based compensation	4,029		4,029
Other comprehensive (loss) income	(954)					(954)
Ending Balance (in shares) at Mar. 27, 2021		68,212,296			29,803,726
Ending Balance at Mar. 27, 2021	$ 762,919	$ 682	$ 232,597	$ 2,115,411	$ (1,582,818)	$ (2,953)