Consolidated Statements Of Equity (USD $) In Thousands	Total	Common Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Non-controlling Interests [Member]
Balance at Dec. 27, 2009
Net loss	$ 27,614			$ 27,730			$ (116)
Exercise of stock-based compensation and awards released	6,022	77	5,945
Exercise of stock-based compensation and awards released, shares		765
Tax benefit on stock-based compensation	133		133
Stock-based compensation expense	8,751		8,751
Deferred compensation plan	2,112		2,112
Repurchase of non-controlling interests	(692)		63				(755)
Amortization of pension plan actuarial losses, net of tax	103					103
Change in realized and unrealized losses on derivative hedges, net of tax	679					679
Recognized loss on pension, net of tax	(3,405)					(3,405)
Foreign currency translation adjustment	(15,321)					(15,358)	37
Balance at Dec. 26, 2010	581,554	4,384	407,383	230,837	(71,520)	10,470	0
Balance, shares at Dec. 26, 2010		43,843			4,036
Net loss	(66,626)			(66,569)			(57)
Exercise of stock-based compensation and awards released	2,210	40	2,170
Exercise of stock-based compensation and awards released, shares		398
Tax benefit on stock-based compensation	77		77
Stock-based compensation expense	7,408		7,408
Deferred compensation plan	1,173		1,173
Non-controlling interest of acquired entities	1,271						1,271
Amortization of pension plan actuarial losses, net of tax	137					137
Change in realized and unrealized losses on derivative hedges, net of tax	1,165					1,165
Recognized loss on pension, net of tax	(2,571)					(2,571)
Foreign currency translation adjustment	3,542					3,540	2
Balance at Dec. 25, 2011	529,340	4,424	418,211	164,268	(71,520)	12,741	1,216
Balance, shares at Dec. 25, 2011		44,241			4,036
Net loss	(146,405)			(145,876)			(529)
Exercise of stock-based compensation and awards released	1,160	52	1,108
Exercise of stock-based compensation and awards released, shares		522
Tax benefit on stock-based compensation	(306)		(306)
Stock-based compensation expense	4,837		4,837
Deferred compensation plan	865		865
Amortization of pension plan actuarial losses, net of tax	218					218
Change in realized and unrealized losses on derivative hedges, net of tax	(1,521)					(1,521)
Recognized loss on pension, net of tax	(11,176)					(11,176)
Foreign currency translation adjustment	534					533	1
Balance at Dec. 30, 2012	$ 377,546	$ 4,476	$ 424,715	$ 18,392	$ (71,520)	$ 795	$ 688
Balance, shares at Dec. 30, 2012		44,763			4,036