Restructuring (Details) $ in Millions	1 Months Ended	12 Months Ended			32 Months Ended
	May 31, 2020 employee	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring, reduction in full-time employees | employee	1,800
Restructuring charges		$ 89.1	$ 112.8	$ 151.4	$ 353.3
Restructuring liabilities		0.0			$ 0.0
Impairment of long-lived assets		80.5	75.3	35.8
Impairment of leasehold		$ 8.4	$ 37.2
Contract termination
Restructuring Cost and Reserve [Line Items]
Reduction in full-time employees (in percentage)	25.00%
Restructuring charges				11.8
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 103.8