Leases - Balance Sheet Location (Details) $ in Millions	Dec. 31, 2019 USD ($)
Operating Leases:
Operating lease asset	$ 82.9
Operating lease liabilities - current	15.6
Operating lease liabilities	68.4
Total Operating Lease Liabilities	$ 84.0
Weighted-average remaining lease term (in years)	17 years 10 months 24 days
Weighted-average discount rate	4.40%
Finance Leases:
Property, plant and equipment, net	$ 45.7
Current portion of capital leases	1.7
Long-term debt	45.1
Total Finance Lease Liabilities	$ 46.8
Weighted Average remaining lease term (in years)	20 years 9 months 18 days
Weighted-average discount rate	6.70%