Hosting Arrangements (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Hosting arrangements, Capitalized costs	$ 6.9	$ 6.9	$ 5.5
Hosting arrangements, Accumulated amortization	0.2	0.2
Hosting arrangements, Amortization	0.1	0.2
Impairment of capitalized implementation costs	$ 1.6	$ 1.6
Hosting Arrangement, Service Contract, Implementation Cost, Impairment, Statement of Income [Extensible List]	Long-Lived and Other Asset Impairment.