Condensed Consolidated Statements of Shareholders' Deficit (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Paid-in Capital [Member]	(Deficit) [Member]	Accumulated Other Comprehensive Loss, Net [Member]	Accelerated Share Repurchase 2018 [Member]	Accelerated Share Repurchase 2018 [Member] Treasury Stock [Member]
Balance at Dec. 27, 2017	$ (97,360)	$ 1,077	$ (355,626)	$ 594,166	$ (334,661)	$ (2,316)
Balance, common stock, shares issued at Dec. 27, 2017		107,740
Balance, treasury stock, at cost, shares at Dec. 27, 2017			(43,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	21,385				21,385
Other comprehensive income (loss)	299					299
Share-based compensation on equity classified awards	1,076			1,076
Purchase of treasury stock	(28,844)		$ (28,844)
Purchase of treasury stock (in shares)			(1,863)
Issuance of common stock for share-based compensation	0	$ 4		(4)
Issuance of common stock for share-based compensation (in shares)		444
Exercise of common stock options	1,013	$ 3		1,010
Exercise of common stock options (in shares)		286
Balance at Jun. 27, 2018	(117,877)	$ 1,084	$ (384,470)	596,248	(328,722)	(2,017)
Balance, common stock, shares issued at Jun. 27, 2018		108,470
Balance, treasury stock, at cost, shares at Jun. 27, 2018			(45,014)
Balance at Mar. 28, 2018	(121,415)	$ 1,083	$ (371,812)	595,069	(340,348)	(5,407)
Balance, common stock, shares issued at Mar. 28, 2018		108,259
Balance, treasury stock, at cost, shares at Mar. 28, 2018			(44,222)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,626				11,626
Other comprehensive income (loss)	3,390					3,390
Share-based compensation on equity classified awards	1,180			1,180
Purchase of treasury stock	(12,658)		$ (12,658)
Purchase of treasury stock (in shares)			(792)
Issuance of common stock for share-based compensation	0	$ 1		(1)
Issuance of common stock for share-based compensation (in shares)		211
Balance at Jun. 27, 2018	(117,877)	$ 1,084	$ (384,470)	596,248	(328,722)	(2,017)
Balance, common stock, shares issued at Jun. 27, 2018		108,470
Balance, treasury stock, at cost, shares at Jun. 27, 2018			(45,014)
Balance at Dec. 26, 2018	$ (133,345)	$ 1,086	$ (416,815)	592,944	(306,414)	(4,146)
Balance, common stock, shares issued at Dec. 26, 2018	108,585	108,585
Balance, treasury stock, at cost, shares at Dec. 26, 2018	(47,052)		(47,052)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 49,729				49,729
Other comprehensive income (loss)	(22,767)					(22,767)
Share-based compensation on equity classified awards	1,652			1,652
Purchase of treasury stock	(37,997)		$ (37,997)				$ (6,800)
Purchase of treasury stock (in shares)			(2,043)				(400)	(389)
Equity forward contract settlement			$ (6,763)	6,763
Issuance of common stock for share-based compensation	0	$ 5		(5)
Issuance of common stock for share-based compensation (in shares)		465
Exercise of common stock options	550	$ 2		548
Exercise of common stock options (in shares)		241
Balance at Jun. 26, 2019	$ (142,572)	$ 1,093	$ (461,575)	601,902	(257,079)	(26,913)
Balance, common stock, shares issued at Jun. 26, 2019	109,291	109,291
Balance, treasury stock, at cost, shares at Jun. 26, 2019	(49,484)		(49,484)
Balance at Mar. 27, 2019	$ (140,221)	$ 1,090	$ (432,519)	598,825	(291,318)	(16,299)
Balance, common stock, shares issued at Mar. 27, 2019		108,986
Balance, treasury stock, at cost, shares at Mar. 27, 2019			(47,948)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	34,239				34,239
Other comprehensive income (loss)	(10,614)					(10,614)
Share-based compensation on equity classified awards	2,637			2,637
Purchase of treasury stock	(29,056)		$ (29,056)
Purchase of treasury stock (in shares)			(1,536)
Issuance of common stock for share-based compensation	0	$ 2		(2)
Issuance of common stock for share-based compensation (in shares)		118
Exercise of common stock options	443	$ 1		442
Exercise of common stock options (in shares)		187
Balance at Jun. 26, 2019	$ (142,572)	$ 1,093	$ (461,575)	$ 601,902	$ (257,079)	$ (26,913)
Balance, common stock, shares issued at Jun. 26, 2019	109,291	109,291
Balance, treasury stock, at cost, shares at Jun. 26, 2019	(49,484)		(49,484)