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 [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 2,525	$ 4,056	$ 3,757
Additions, Charged to Operating Results	1,060	520	1,668
Additions, Charged to Other Accounts	1,314	0	0
Deductions	(1)	2,051	1,369
Ending Balance	4,900	2,525	4,056
Allowance For Sales Adjustments [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	7,425	7,089	10,152
Additions, Charged to Operating Results	150,113	220,123	159,417
Additions, Charged to Other Accounts	0	0	0
Deductions	151,876	219,787	162,480
Ending Balance	5,662	7,425	7,089
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	9,150	10,400	188,354
Additions, Charged to Operating Results	0	(1,250)	(164,180)
Additions, Charged to Other Accounts	0	0	(13,774)
Deductions	(1,229)	0	0
Ending Balance	$ 7,921	$ 9,150	$ 10,400