Income Taxes - Narrative (Details) (USD $)	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Dec. 29, 2013
Income Tax Disclosure [Abstract]
Federal annual utilization of NOL carryforwards limit, next five years	$ 27,000,000
Threshold period for change in allowed annual amount of NOL to be recognized	5 years
Federal annual utilization of NOL carryforwards limit, after year five	11,600,000
Unrecognized tax benefits that if recognized would affect effective tax rate			15,800,000
Unrecognized tax benefits increase related to the CEI acquisition	2,700,000
Income tax penalties and interest expense	0	0
Unrecognized tax benefits that will expire within the next 12 months	$ 0