Condensed Consolidated Statements of Shareholders' Deficit - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Paid-in Capital	Deficit	Accumulated Other Comprehensive Loss, Net
Balance as of beginning of period (in shares) at Dec. 25, 2019		109,415,000
Balance as of beginning of period at Dec. 25, 2019	$ (138,064)	$ 1,094	$ (519,780)	$ 603,980	$ (189,398)	$ (33,960)
Balance as of beginning of period, treasury stock (in shares) at Dec. 25, 2019			(52,320,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,013				9,013
Other comprehensive income (loss)	(32,672)					(32,672)
Share-based compensation on equity classified awards, net of withholding tax	$ (4,576)			(4,576)
Purchase of treasury stock (in shares)	(1,700,000)		(1,690,000)
Purchase of treasury stock	$ (34,193)		$ (34,193)
Issuance of common stock for share-based compensation (in shares)		262,000
Issuance of common stock for share-based compensation	0	$ 3		(3)
Balance as of end of period (in shares) at Mar. 25, 2020		109,677,000
Balance as of end of period at Mar. 25, 2020	$ (200,492)	$ 1,097	$ (553,973)	599,401	(180,385)	(66,632)
Balance as of end of period, treasury stock (in shares) at Mar. 25, 2020			(54,010,000)
Balance as of beginning of period (in shares) at Dec. 30, 2020	63,962,000	63,962,000
Balance as of beginning of period at Dec. 30, 2020	$ (130,446)	$ 640	$ 0	123,833	(194,514)	(60,405)
Balance as of beginning of period, treasury stock (in shares) at Dec. 30, 2020			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23,181				23,181
Other comprehensive income (loss)	3,075					3,075
Share-based compensation on equity classified awards, net of withholding tax	2,002			2,002
Issuance of common stock for share-based compensation (in shares)		153,000
Issuance of common stock for share-based compensation	0	$ 1		(1)
Exercise of common stock options (in shares)		30,000
Exercise of common stock options	$ 116			116
Balance as of end of period (in shares) at Mar. 31, 2021	64,145,000	64,145,000
Balance as of end of period at Mar. 31, 2021	$ (102,072)	$ 641	$ 0	$ 125,950	$ (171,333)	$ (57,330)
Balance as of end of period, treasury stock (in shares) at Mar. 31, 2021	0		0