UNAUDITED INTERIM INFORMATION (Details) - USD ($) $ in Thousands	Oct. 01, 2016	Sep. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change (Note 1)		$ 0
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change (Note 1)		(964)
Paid-in Capital
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change (Note 1)		$ 964
New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred tax assets	$ 6,600
New Accounting Pronouncement, Early Adoption, Effect | Retained Earnings | Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change (Note 1)	(6,600)
Actual forfeiture versus the previously estimated rate | New Accounting Pronouncement, Early Adoption, Effect | Retained Earnings | Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change (Note 1)	(1,000)
Actual forfeiture versus the previously estimated rate | New Accounting Pronouncement, Early Adoption, Effect | Paid-in Capital | Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change (Note 1)	$ 1,000