Fair Value Measurements - Summary of Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets:
Cash and cash equivalents	$ 77.1	$ 34.7
Liabilities:
Interest rate swaps	14.9	37.6
Contingent consideration	4.9	3.1
Redeemable noncontrolling interests	1,188.8	578.0
Level 1
Assets:
Cash and cash equivalents	77.1	34.7
Level 2
Liabilities:
Interest rate swaps	14.9	37.6
Level 3
Liabilities:
Contingent consideration	4.9	3.1
Redeemable noncontrolling interests	$ 1,188.8	$ 578.0