Investments (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2018
Other (income) expense, net
Schedule of Equity Method Investments [Line Items]
Equity securities, fair value method, other expense (inxcome)		$ 4.9	$ 9.5	$ 0.0
Equity securites, equity method, other expense (income)		(2.7)	(2.7)	(0.3)
ASU 2016-01
Schedule of Equity Method Investments [Line Items]
ASU 2016-01 adoption impact				$ (1.0)
Zibo Xinhua [Member]
Schedule of Equity Method Investments [Line Items]
Increase in investment in Zibo Xinhua			7.5
Retained Earnings (Accumulated Deficit) | ASU 2016-01
Schedule of Equity Method Investments [Line Items]
ASU 2016-01 adoption impact					$ 1.0
Prepaid expenses and other current assets
Schedule of Equity Method Investments [Line Items]
Equity securities, fair value method		6.6	9.4
Other non-current assets
Schedule of Equity Method Investments [Line Items]
Equity securities, fair value method	[1]	2.3	4.4
Equity method investments		$ 17.8	$ 15.1

[1] (1) Measured at fair value using the Net Asset Value practical expedient.