Income Tax (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Examination [Line Items]
Effective income tax rate (as a percent)	10.10%	42.30%	(15.10%)	37.10%
Contingent liabilities - Pfenex
Income Tax Examination [Line Items]
Reduction in contingent liability	$ 3.8		$ 37.6