Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income Tax Contingency [Line Items]
Annual effective tax rate ( as a percent )	23.30%	18.30%
Provision for (benefit from) income taxes	$ 8,067	$ (4,816)
Unrecognized tax benefits	14,300		$ 10,000
Accrued interest and penalties	1,500		$ 1,400
Equity Compensation
Income Tax Contingency [Line Items]
Provision for (benefit from) income taxes	(4,600)	(900)
Aesynt
Income Tax Contingency [Line Items]
Provision for (benefit from) income taxes	$ 9,600	$ (4,200)