PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Short-term investments in real estate	$ 24,644	$ 13,025
Income taxes receivable	13,219	5,186
Prepaid expenses	7,712	6,919
Maintenance agreements, current portion	4,658	6,590
Litigation settlement insurance recovery	0	4,000
Other current assets	9,647	6,888
Total	$ 59,880	$ 42,608