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COMPONENTS OF THE COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEETS Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]    
Prepaid legal fees $ 1,883 $ 212
Prepaid income tax 923 2,431
Prepaid maintenance agreements 1,784 1,399
Interest receivable 1,075 743
Advance to suppliers 6,316 69
Other 4,789 3,861
Total $ 16,770 $ 8,715