Leases - Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ (8.1)	$ (7.9)	$ (25.2)	$ (25.5)
Supplemental non-cash information on lease liabilities arising from obtaining right-of-use assets:
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 5.4	$ 0.8	$ 15.5	$ 16.7