Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Income tax (benefit)/expense	$ (5,743,000)	$ 13,813,000	$ (1,979,000)	$ 18,895,000
Effective tax rate, continuing operations		44.30%		44.60%
Unrecognized tax benefits that would impact the effective tax rate	$ 15,000,000		$ 15,000,000