Schedule II - Valuation And Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013
Allowance For Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 8,526	$ 12,404	$ 13,242
Charged to Costs and Expenses	(237)	(144)	(435)
Deductions (Write-Offs and Recoveries, net)	(2,230)	(3,734)	(403)
Adjustment for Discontinued Operations	0	0	0
Balance at End of Year	6,059	8,526	12,404
Deferred Tax Valuation Allowance
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	148,838	145,508	141,474
(Benefit) Expense Recorded on Current Year (Income) Losses	7,902	(9,799)	4,173
Change in Valuation Allowance	448	11,297	(125)
Impact of CTA	(7,034)	1,832	(14)
Balance at End of Year	$ 150,154	$ 148,838	$ 145,508