Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Income Tax Disclosure [Abstract]
Loss from continuing operations before income taxes	$ (8,709)	$ (4,707)	$ (15,842)	$ (19,677)
Provision for (benefit from) income taxes	$ 28,353	$ (1,303)	$ 26,630	$ (6,770)
Effective income tax rate	(325.60%)	27.70%	(168.10%)	34.40%