SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Issued Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Jan. 28, 2015	Dec. 02, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016
Dividend
Special dividend declared per share		$ 0.14		$ 0.14
Dividend paid	$ 5,189		$ 5,189
Recently Issued Accounting Pronouncements
Long term debt			50,800		$ 125,289
Deferred tax asset			2,109		1,730
ASU 2015-03
Recently Issued Accounting Pronouncements
Long term debt			(600)		(3,100)
New Accounting Pronouncement, Early Adoption, Effect | Pro Forma
Recently Issued Accounting Pronouncements
Deferred tax asset			$ 2,100		$ 1,700