Leasing Arrangements - Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Total operating lease cost	$ 6.6	$ 5.9
Cost of sales
Lessee, Lease, Description [Line Items]
Operating lease cost	1.8	2.7
Selling and administrative expense
Lessee, Lease, Description [Line Items]
Operating lease cost	4.0	3.1
Other	$ 0.8	$ 0.1