Consolidated Statements Of Equity (USD $) In Thousands	Common Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Non-controlling Interests [Member]	Total
Balance at Dec. 27, 2009	$ 4,307	$ 390,379	$ 205,951	$ (71,520)	$ 28,603	$ 834	$ 558,554
Balance, shares at Dec. 27, 2009	43,078			4,036
Net (loss) earnings			27,371			(116)	27,255
Exercise of stock-based compensation and awards released	77	5,945					6,022
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		63				(755)	(692)
Amortization of pension plan actuarial losses, net of tax					103		103
Change in realized and unrealized gains on derivative hedges, net of tax					679		679
Recognized loss on pension, net of tax					(3,405)		(3,405)
Foreign currency translation adjustment					(15,258)	37	(15,221)
Balance at Dec. 26, 2010	4,384	407,383	233,322	(71,520)	10,722		584,291
Balance, shares at Dec. 26, 2010	43,843			4,036
Net (loss) earnings			(49,050)			50	(49,000)
Exercise of stock-based compensation and awards released	36	2,300					2,336
Exercise of stock-based compensation and awards released, shares	353
Tax benefit on stock-based compensation		503					503
Stock-based compensation expense		6,208					6,208
Deferred compensation plan		999					999
Non-controlling interests of acquired entities						1,271	1,271
Amortization of pension plan actuarial losses, net of tax					9		9
Change in realized and unrealized gains on derivative hedges, net of tax					52		52
Foreign currency translation adjustment					9,621		9,621
Balance at Sep. 25, 2011	$ 4,420	$ 417,393	$ 184,272	$ (71,520)	$ 20,404	$ 1,321	$ 556,290
Balance, shares at Sep. 25, 2011	44,196			4,036