Supplemental Disclosures of Cash Flow Information (Details) - Supplemental Disclosures of Cash Flow Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2016	Dec. 27, 2015	Dec. 28, 2014
Supplemental Cash Flow Elements [Abstract]
Income taxes	$ 20,796	$ 47,150	$ 48,988
Interest	3,850	1,634	152
Noncash Investing and Financing Items [Abstract]
Property and equipment not yet paid for	(3,438)	1,986	(46)
Tax withholding for restricted stock units	2,676	7,613	4,600
Issuance of note payable for investment in subsidiary	0	0	2,375
Increase in asset retirement obligation and liability	89	1,146	0
Increase in deemed landlord financing assets and obligations	3,954	4,945	0
Increase in other assets and liabilities from hosted software arrangements	1,550	0	0
Increase in contingent consideration liability	$ 0	$ 1,551	$ 0