Condensed Consolidated Statement of Shareholders' Equity (Unaudited) (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Treasury Stock [Member]	Paid-in Capital [Member]	(Deficit) [Member]	Accumulated Other Comprehensive Loss, Net [Member]
Balance at Dec. 26, 2012	$ (4,460)	$ 1,038	$ (47,638)	$ 562,657	$ (495,518)	$ (24,999)
Balance, treasury stock, at cost, shares at Dec. 26, 2012	(11,535)		(11,535)
Balance, common stock, shares issued at Dec. 26, 2012	103,764	103,764
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,310				20,310
Recognition of unrealized gain on hedged transactions, net of tax expense of $1,063	1,640					1,640
Minimum pension liability adjustment, net of tax expense of $487	752					752
Share-based compensation on equity classified awards	1,848			1,848
Purchase of treasury stock	(21,578)		(21,578)
Purchase of treasury stock (in shares)	(3,800)		(3,788)
Issuance of common stock for share-based compensation	0	3		(3)
Issuance of common stock for share-based compensation (in shares)		300
Exercise of common stock options	2,077	6		2,071
Exercise of common stock options (in shares)		631
Tax expense from stock options exercised	(204)			(204)
Balance at Sep. 25, 2013	$ 385	$ 1,047	$ (69,216)	$ 566,369	$ (475,208)	$ (22,607)
Balance, treasury stock, at cost, shares at Sep. 25, 2013	(15,323)		(15,323)
Balance, common stock, shares issued at Sep. 25, 2013	104,695	104,695