Other Current and Non-Current Liabilities - Schedule of Other Non-Current Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Other Liabilities Noncurrent [Abstract]
Deferred consideration payable	$ 26.3	$ 26.0
Uncertain tax positions, including interest and penalties	22.3	22.0
Contingent consideration obligation	6.0	10.8
Accrued payables from acquisitions		40.0
Other non-current liabilities	13.1	13.5
Total other non-current liabilities	$ 67.7	$ 112.3