Restructuring Costs (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
	Mar. 09, 2021	Sep. 30, 2022	Sep. 30, 2022
Restructuring Costs
Restructuring costs	$ 3.6	$ 0.0	$ 5.3
Unpaid restructuring costs		$ 0.6	0.6
Cost of revenue, excluding depreciation and amortization
Restructuring Costs
Restructuring costs	3.2		4.4
General and administrative
Restructuring Costs
Restructuring costs			0.5
Sales and marketing
Restructuring Costs
Restructuring costs	0.3		0.3
Research and development
Restructuring Costs
Restructuring costs	$ 0.1		$ 0.1