Leases (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Operating lease cost	$ 23.6	$ 19.3	$ 46.6	$ 39.0
Cash payments for operating leases			43.9	39.1
Right-of-use assets obtained in exchange for operating lease obligations			$ 27.7	$ 33.0
Weighted average remaining lease term - operating leases	6 years 1 month 6 days		6 years 1 month 6 days		5 years 9 months 18 days
Weighted average discount rate - operating leases	3.30%		3.30%		3.30%
Maturities of operating lease liabilities
2022 (remaining six months)	$ 30.9		$ 30.9
2023	54.3		54.3
2024	44.2		44.2
2025	31.9		31.9
2026	21.1		21.1
Thereafter	66.0		66.0
Total operating lease payments	248.4		248.4
Less: imputed interest	(27.7)		(27.7)
Total operating lease liabilities	220.7		220.7
Maximum
Finance right-of-use assets	1.0		1.0
Finance right-of-use obligations	$ 1.0		$ 1.0