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								12 Months Ended
	Jan. 02, 2016	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Jan. 02, 2016	Dec. 27, 2014	Dec. 28, 2013
Earnings Per Share [Abstract]
Loss from continuing operations	$ (4,365)	$ (3,562)	$ (3,355)	$ (8,179)	$ (23,398)	$ (14,030)	$ (39,942)	$ (17,683)	$ (19,461)	$ (95,053)	$ (86,276)
(Loss) income from discontinued operations, net of taxes	(13,159)	319	950	500	4,899	3,137	1,305	1,849	(11,390)	11,190	17,490
Net loss	$ (17,524)	$ (3,243)	$ (2,405)	$ (7,679)	$ (18,499)	$ (10,893)	$ (38,637)	$ (15,834)	$ (30,851)	$ (83,863)	$ (68,786)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic shares									67,832	66,952	64,576
Dilutive effect of 7% Notes (shares)									0	0	0
Dilutive effect of Equity Awards (shares)									0	0	0
Diluted shares									67,832	66,952	64,576
(Loss) income per share – basic:
Loss per share from continuing operations - basic	$ (0.06)	$ (0.05)	$ (0.05)	$ (0.12)	$ (0.34)	$ (0.21)	$ (0.60)	$ (0.27)	$ (0.29)	$ (1.42)	$ (1.34)
Discontinued operations per share - basic	(0.20)	0.00	0.01	0.01	0.07	0.05	0.02	0.03	(0.16)	0.17	0.27
Net loss per share - basic	(0.26)	(0.05)	(0.04)	(0.11)	(0.27)	(0.16)	(0.58)	(0.24)	(0.45)	(1.25)	(1.07)
(Loss) income per share – diluted:
Loss per share from continuing operations - diluted	(0.06)	(0.05)	(0.05)	(0.12)	(0.34)	(0.21)	(0.60)	(0.27)	(0.29)	(1.42)	(1.34)
Discontinued operations per share - diluted	(0.20)	0.00	0.01	0.01	0.07	0.05	0.02	0.03	(0.16)	0.17	0.27
Net loss per share - diluted	$ (0.26)	$ (0.05)	$ (0.04)	$ (0.11)	$ (0.27)	$ (0.16)	$ (0.58)	$ (0.24)	$ (0.45)	$ (1.25)	$ (1.07)