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		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Earnings Per Share [Abstract]
Loss from continuing operations	$ (3,562)	$ (14,030)	$ (15,096)	$ (71,655)
Income from discontinued operations, net of taxes	319	3,137	1,769	6,291
Net loss	$ (3,243)	$ (10,893)	$ (13,327)	$ (65,364)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic shares	67,874	67,296	67,817	66,709
Dilutive effect of 7% Notes (shares)	0	0	0	0
Dilutive effect of Equity Awards (shares)	0	0	0	0
Diluted shares	67,874	67,296	67,817	66,709
(Loss) income per share – basic:
Continuing operations per share - basic	$ (0.05)	$ (0.21)	$ (0.22)	$ (1.07)
Discontinued operations per share - basic	0.00	0.05	0.02	0.09
Net loss per share - basic	(0.05)	(0.16)	(0.20)	(0.98)
(Loss) income per share – diluted:
Continuing operations per share - diluted	(0.05)	(0.21)	(0.22)	(1.07)
Discontinued operations per share - diluted	0.00	0.05	0.02	0.09
Net loss per share - diluted	$ (0.05)	$ (0.16)	$ (0.20)	$ (0.98)