Discontinued Operations - Carrying Value of Major Classes of Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Assets
Other assets	$ 6.6
Liabilities
Accrued expenses and other current liabilities	17.3
Arysta | Discontinued Operations, Disposed of by Sale
Assets
Other current assets	9.2	$ 11.2
Other assets	6.6	6.5
Liabilities
Accrued expenses and other current liabilities	$ 17.3	$ 34.1