Statement of Cash Flow Supplemental Disclosure (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 29, 2014	Jun. 27, 2015	Jun. 28, 2014
Other Significant Noncash Transactions [Line Items]
Shares Paid for Tax Withholding for Share Based Compensation		12,300	87,290
Shares Paid For Tax Withholding For Share Based Compensation, Value		$ 900,000	$ 7,000,000
Capital Lease Obligations Incurred		$ 0	$ 0
Corporate Joint Venture [Member]
Other Significant Noncash Transactions [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Contribution of Property	$ 3,100,000