Joint Ventures (Details) $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($) joint_venture	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity investment in joint ventures	$ 52.4	$ 51.9
Impairment charge		15.0
China
Schedule of Equity Method Investments [Line Items]
Number of joint ventures \| joint_venture	2
Ownership of joint ventures (as a percent)	50.00%
Other income, net	$ 2.1	$ 2.2	$ 2.1

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Ancillary revenue earned during the period from the consideration paid to the entity for the use of its rights and property by another party. Examples include licensing the use of copyrighted materials and leasing the extraction of natural resources.

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