Accumulated Other Comprehensive Income (Loss) (Reclassifications out of AOCI) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Loss from continuing operations before income taxes	$ (40,011)	$ (16,822)	$ (57,358)	$ (35,142)
Income tax (benefit) expense	710	(2,174)	1,270	(4,344)
Loss from continuing operations	(39,301)	(18,996)	(56,088)	(39,486)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Loss from continuing operations before income taxes	794	0	1,587	0
Income tax (benefit) expense	(314)	0	(627)	0
Loss from continuing operations	480	0	960	0
Pension and Other Postretirement Benefits [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net actuarial losses	$ 794	$ 0	$ 1,587	$ 0