FAIR VALUE MEASUREMENTS - FV of debt (Details) - Term Loan credit facility, due April 2021 - USD ($) $ in Thousands	Oct. 01, 2016	Jan. 02, 2016	Oct. 03, 2015
Fair values and carrying values of debt instruments
Fair Value	$ 393,019	$ 381,333	$ 391,178
Carrying value	$ 386,486	$ 388,667	$ 388,381

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

No definition available.

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant