Consolidated Statements Of Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests
Balance at Dec. 30, 2012	$ 354,309	$ 4,476	$ 424,715	$ (4,356)	$ (71,520)	$ 306	$ 688
Balance (shares) at Dec. 30, 2012		44,763			4,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	(18,927)			(18,928)			1
Exercise of stock-based compensation and awards released (shares)		721
Exercise of stock-based compensation and awards released	2,561	72	2,489
Tax benefit on stock-based compensation	82		82
Stock-based compensation expense	6,369		6,369
Deferred compensation plan	681		681
Sale of interest in subsidiary	(516)						(516)
Amortization of pension plan actuarial losses, net of tax	1,120					1,120
Change in realized and unrealized losses on derivative hedges, net of tax	(21)					(21)
Recognized loss on pension, net of tax	1,403					1,403
Prior service cost arising during period, net of tax	(158)					(158)
Foreign currency translation adjustment	(578)					(405)	(173)
Balance at Dec. 29, 2013	346,325	4,548	434,336	(23,284)	(71,520)	2,245	0
Balance (shares) at Dec. 29, 2013		45,484			4,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	5,650			5,650
Exercise of stock-based compensation and awards released (shares)		293
Exercise of stock-based compensation and awards released	318	30	288
Tax benefit on stock-based compensation	19		19
Stock-based compensation expense	4,349		4,349
Deferred compensation plan	662		662
Amortization of pension plan actuarial losses, net of tax	1,148					1,148
Change in realized and unrealized losses on derivative hedges, net of tax	0
Foreign currency translation adjustment	(10,272)					(10,272)
Balance at Sep. 28, 2014	$ 348,199	$ 4,578	$ 439,654	$ (17,634)	$ (71,520)	$ (6,879)	$ 0
Balance (shares) at Sep. 28, 2014		45,777			4,036