Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Gain (Loss) gain on sale of discontinued operations, net of tax	$ 12.1	$ (6.8)

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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