Schedule II Valuation and Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013
Valuation and Qualifying Accounts [Roll Forward]
Balance at Beginning of Year	$ 15,900	$ 19,000	$ 19,600
Expense (Benefit)	2,400	800	0
Other Additions	0	0	0
Write-Offs and Other	(3,400)	(3,900)	(600)
Balance at End of Year	$ 14,900	$ 15,900	$ 19,000