FAIR VALUE MEASUREMENTS (Schedule of Fair Value and Carrying Amount of Debt Obligations) (Details) - USD ($) $ in Thousands	Sep. 25, 2016	Dec. 27, 2015	Mar. 11, 2015
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed-rate senior notes payable	$ (500,000)	$ (500,000)
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed-rate senior notes payable	$ (515,000)	$ (488,750)
Senior Notes [Member] | Senior Notes 5.75% Due 2025 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	5.75%	5.75%	5.75%