FAIR VALUE MEASUREMENTS (Schedule of Carrying Amounts and Estimated Fair Values of Fixed-Rate Debt Obligation) (Details) - Senior notes [Member] - USD ($) $ in Thousands	Dec. 25, 2016	Dec. 27, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	5.75%
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed-rate senior notes payable at 5.75%	$ (500,000)	$ (500,000)
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed-rate senior notes payable at 5.75%	$ (503,395)	$ (488,750)