Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating leases:
Operating lease right-of-use assets	$ 52.6	$ 46.8
Operating lease liabilities (component of other current liabilities)	13.4	13.4
Operating lease liabilities, noncurrent	41.3	35.7
Total operating lease liability	$ 54.7	$ 49.1
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities
Finance leases:
Property, plant and equipment	$ 52.9	$ 52.9
Accumulated depreciation	(11.3)	(8.6)
Property, plant and equipment, net	41.6	44.3
Current portion of long-term debt	1.9	2.2
Long-term debt	41.5	43.4
Total finance lease liability	$ 43.4	$ 45.6
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net	Property, plant and equipment, net
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current portion of long-term debt	Current portion of long-term debt
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Total long-term debt, carrying amount	Total long-term debt, carrying amount
Weighted-average remaining lease term (in years):
Operating leases	7 years	7 years
Finance leases	16 years	17 years
Weighted-average discount rate:
Operating leases	3.80%	4.40%
Finance leases	5.90%	5.90%