Income Taxes - Schedule of Provision for (Benefit From) Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ 2,796	$ 8,088	$ (1,335)	$ (4,408)
Effective tax rate	(85.10%)	33.20%	7.80%	36.80%