Accrued Expenses and Other Short Term Liabilities - Schedule of Accrued Expenses and Other Short Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accrued Liabilities and Other Liabilities [Abstract]
Employees	$ 23,479	$ 20,111
Accrued expenses	13,766	12,725
Government authorities and other	24,689	18,196
Foreign exchange forward contract derivatives	470	3,646
Other short term liabilities	203	1,313
Accrued expenses and other short term liabilities	$ 62,607	$ 55,991