Income Taxes - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
	Jan. 01, 2020	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating Loss Carryforwards [Line Items]
Effective income tax rate (percent)		39.40%		11.30%	(30.80%)	16.60%
Income tax benefit		$ (9,594)		$ (9,685)	$ 15,907	$ (35,848)
Valuation allowance		5,100
Adjustment to deferred taxes		1,500
Share-based compensation, excess tax benefit, amount		$ (700)		(300)	$ 3,400	3,300
Tax credits recognized				$ 12,200		$ 12,200
Foreign
Operating Loss Carryforwards [Line Items]
Income tax benefit			$ 30,600
Accounting Standards Update 2016-16 | Cumulative Effect, Period of Adoption, Adjustment | Foreign
Operating Loss Carryforwards [Line Items]
Income tax benefit	$ 30,600