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. 25, 2013	$ 8,431	$ 1,050	$ (72,336)	$ 567,505	$ (470,946)	$ (16,842)
Balance, treasury stock, at cost, shares at Dec. 25, 2013	(15,782)		(15,782)
Balance, common stock, shares issued at Dec. 25, 2013	105,014	105,014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,704				14,704
Other comprehensive loss	(596)					(596)
Share-based compensation on equity classified awards	1,186			1,186
Purchase of treasury stock	(23,990)		(23,990)
Purchase of treasury stock (in shares)	(3,644)		(3,644)
Issuance of common stock for share-based compensation	0	2		(2)
Issuance of common stock for share-based compensation (in shares)		151
Exercise of common stock options	205	1		204
Exercise of common stock options (in shares)		64
Tax benefit from share-based compensation	46			46
Balance at Jun. 25, 2014	$ (14)	$ 1,053	$ (96,326)	$ 568,939	$ (456,242)	$ (17,438)
Balance, treasury stock, at cost, shares at Jun. 25, 2014	(19,426)		(19,426)
Balance, common stock, shares issued at Jun. 25, 2014	105,229	105,229