Income (Loss) Per Share (Computation of Basic and Diluted Income (Loss) per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Earnings Per Share [Abstract]
Loss from continuing operations	$ (2,419)	$ (39,301)	$ (10,066)	$ (56,088)
Income (loss) from discontinued operations, net of taxes	14	664	(18)	1,617
Net loss	$ (2,405)	$ (38,637)	$ (10,084)	$ (54,471)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic shares	67,831	66,496	67,789	66,416
Dilutive effect of 7% Notes (shares)	0	0	0	0
Dilutive effect of Equity Awards (shares)	0	0	0	0
Diluted shares	67,831	66,496	67,789	66,416
(Loss) income per share – basic:
Continuing operations per share - basic	$ (0.04)	$ (0.59)	$ (0.15)	$ (0.84)
Discontinued operations per share - basic	0.00	0.01	0.00	0.02
Net loss per share - basic	(0.04)	(0.58)	(0.15)	(0.82)
(Loss) income per share – diluted:
Continuing operations per share - diluted	(0.04)	(0.59)	(0.15)	(0.84)
Discontinued operations per share - diluted	0.00	0.01	0.00	0.02
Net loss per share - diluted	$ (0.04)	$ (0.58)	$ (0.15)	$ (0.82)