PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Maintenance agreements, current portion	$ 6,590	$ 7,000
Short-term investments in real estate	13,025	0
Income taxes receivable	5,186	633
Prepaid expenses	6,919	7,873
Litigation settlement insurance recovery	4,000	0
Other current assets	6,888	6,245
Total	$ 42,608	$ 21,751