Operating Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	3 years 10 months 24 days	3 years 10 months 29 days	3 years 10 months 24 days	3 years 10 months 29 days
Weighted average discount rate (as a percent)	7.60%	7.40%	7.60%	7.40%
Foreign Currency Transaction Gain, before Tax	$ 0.4	$ 0.2		$ 0.5
Foreign Currency Transaction Loss, before Tax			$ (3.9)
Minimum
Lessee, Lease, Description [Line Items]
General term of leased facilities	3 years		3 years
Maximum
Lessee, Lease, Description [Line Items]
General term of leased facilities	5 years		5 years