PREPAIDS AND OTHER ASSETS (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid maintenance	$ 6,622	$ 8,340
Prepaid other	4,189	4,306
Prepaid advertising	843	1,244
Total prepaids and other current assets	$ 11,654	$ 13,890