Consolidated Statements Of Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance (shares) at Dec. 29, 2013		45,484			4,036
Balance at Dec. 29, 2013	$ 346,325	$ 4,548	$ 434,336	$ (23,284)	$ (71,520)	$ 2,245
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	10,953			10,953
Exercise of stock-based compensation and awards released (shares)		356
Exercise of stock-based compensation and awards released	943	$ 36	907
Tax benefit on stock-based compensation	(14)		(14)
Stock-based compensation expense	5,781		5,781
Deferred compensation plan	872		872
Pension liability adjustments	(17,263)					(17,263)
Foreign currency translation adjustment	(19,666)					(19,666)
Balance (shares) at Dec. 28, 2014		45,840			4,036
Balance at Dec. 28, 2014	327,931	$ 4,584	441,882	(12,331)	$ (71,520)	(34,684)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,559)			(2,559)
Exercise of stock-based compensation and awards released (shares)		156
Exercise of stock-based compensation and awards released	(1,068)	$ 16	(1,084)
Tax benefit on stock-based compensation	(1)		(1)
Stock-based compensation expense	1,459		1,459
Deferred compensation plan	83		83
Dividend declared	(21,384)		(21,384)
Pension liability adjustments	4,431					4,431
Foreign currency translation adjustment	(14,899)					(14,899)
Balance (shares) at Mar. 29, 2015		45,996			4,036
Balance at Mar. 29, 2015	$ 293,993	$ 4,600	$ 420,955	$ (14,890)	$ (71,520)	$ (45,152)