Discontinued Operations - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 6.4	$ 13.3	$ 26.8	$ 37.0
Cost of sales	5.0	8.1	18.9	22.7
Gross profit	1.4	5.2	7.9	14.3
Selling and marketing expenses	2.6	3.4	10.2	10.0
General, administrative and other expenses	1.6	4.5	4.8	6.7
Operating loss	(2.8)	(2.7)	(7.1)	(2.4)
Interest expense, net and other	(0.3)	10.0	3.8	9.1
Loss from discontinued operations before income taxes	(2.5)	(12.7)	(10.9)	(11.5)
Income tax (provision) benefit	(0.2)	0.7	0.0	(1.5)
Loss from discontinued operations, net of tax	$ (2.7)	$ (12.0)	$ (10.9)	$ (13.0)

Disposal Group, Including Discontinued Operation, Interest Expense, Net and Other

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Disposal Group, Including Discontinued Operation, Selling and Marketing Expenses

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of gross profit attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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