Revenue Recognition - Contract Liabilities (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Contract with Customer, Liability [Abstract]
Description of performance obligation timing	Contract liabilities are recognized as Net sales when the related performance obligations are satisfied, which generally occurs within three to six months of the cash receipt.
Contract liabilities	$ 14.7	$ 13.9