Impairment and Restructuring Charge (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Impairment and Restructuring Charge
Intangible assets, net	$ 0.2			$ 89.0
Property, plant and equipment			$ 1.2	8.7	$ 1.2
Operating lease right-of-use assets				0.2
Total impairment charges	0.2		1.2	97.9	1.2
Total impairment and restructuring charge	5.6	$ 137.5	$ 1.2	143.1	$ 1.2
Cost of sales
Impairment and Restructuring Charge
Restructuring				39.8
Warehouse, delivery, selling, general and administrative expense
Impairment and Restructuring Charge
Restructuring	$ 5.4			$ 5.4