SIGNIFICANT ACCOUNTING POLICIES - Adopted Pronouncements (Details) - USD ($) $ in Thousands	Dec. 27, 2015	Dec. 28, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets	$ 65,078	$ 62,160
Long-term debt	905,425	994,812
Deferred income taxes		25,108
Current assets	205,062	$ 436,815
Accounting Standards Update 2015 03 | Adjustments for New Accounting Principle, Early Adoption
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets	(12,100)
Long-term debt	(12,100)
Accounting Standards Update 2015 17 | Adjustments for New Accounting Principle, Early Adoption
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes	(1,100)
Current assets	$ (1,100)