Consolidated Statements Of Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 29, 2013	$ 346,325	$ 4,548	$ 434,336	$ (23,284)	$ (71,520)	$ 2,245
Balance (shares) at Dec. 29, 2013		45,484			4,036
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 at Dec. 28, 2014	327,931	4,584	441,882	(12,331)	(71,520)	(34,684)
Balance (shares) at Dec. 28, 2014		45,840			4,036
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(745)			(745)
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 at Mar. 29, 2015	$ 295,807	$ 4,600	$ 420,955	$ (13,076)	$ (71,520)	$ (45,152)
Balance (shares) at Mar. 29, 2015		45,996			4,036