Leases - Lease Cost and Other Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finance leases
Amortization of ROU assets	$ 10.5	$ 10.6	$ 10.9
Interest on lease liabilities	1.3	1.5
Operating leases	33.2	31.7
Short-term lease cost	2.7	4.9
Variable lease cost	7.0	5.7
Total lease cost	54.7	54.4
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows - finance leases	5.4	4.8
Operating cash flows - operating leases	30.6	30.4
Financing cash flows - finance leases	10.0	10.5	$ 11.6
ROU assets obtained in exchange for new finance lease liabilities	8.8	5.7
ROU assets obtained in exchange for new operating lease liabilities	$ 34.4	$ 17.2
Finance leases
Remaining lease term (in years)	6 years 1 month 6 days	5 years 10 months 24 days
Discount rate	4.90%	4.60%
Operating leases
Remaining lease term (in years)	4 years 2 months 12 days	4 years 4 months 24 days
Discount rate	4.80%	4.70%