Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ (5,161)	$ 4,236	$ (10,009)	$ 2,241
Effective tax rate	21.20%	(22.10%)	17.10%	(5.50%)
Unrecognized Tax Benefits	$ 8,000		$ 8,000		$ 6,400
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 4,400		$ 4,400		$ 3,500