Leases - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Lessee, Lease, Description [Line Items]
Operating lease, remaining weighted average lease term		6 years 6 months
Operating lease, weighted average discount rate		5.50%
Restructuring and other	[1]	$ 22.4	$ 52.3
Commitments for operating leases that have not yet commenced		$ 14.9
Term of leases not yet commenced		6 years 8 months 12 days
Abandonment Of Operating Leases
Lessee, Lease, Description [Line Items]
Restructuring and other		$ 5.8

[1] Costs and operating expenses include equity-based compensation expense as follows: Cost of revenue$— $0.4 Technology and development37.5 39.0 Marketing and advertising7.3 6.6 Customer care5.8 5.4 General and administrative20.4 20.2 Restructuring and other0.8 2.3 Total equity-based compensation expense$71.8 $73.9