Other Payables and Accrued Expenses - Schedule of Other Payables and Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Payables And Accruals [Abstract]
Employees and payroll accruals	$ 13,283	$ 7,541
Taxes payable and others	9,110	3,142
Provision for settlement (Note 12)	5,500	5,500
Deferred revenues	4,959	2,267
Other	144	76
Other payables and accrued expenses	$ 32,996	$ 18,526