Quarterly Results of Operations (Unaudited) (Restated Condensed Consolidated Statements of Operations with Adjustments) (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) to selling, general, and administrative expense		$ (0.1)	$ (1.5)	$ 0.4
Increase (decrease) to revenue		(21.8)	(4.5)	1.6
Restatement Impacts | Write-off of Assets
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) to selling, general, and administrative expense	$ 3.7	2.2	(0.3)	1.4	$ 1.4	$ 1.2	$ 0.5	$ 1.7	$ 1.1	$ 2.3	$ 3.3	$ 3.5	$ 6.9	$ 4.9	$ 1.3
Increase (decrease) to revenue	(0.4)												(0.4)
Restatement Impacts | Reversal of Revenue
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) to revenue	(0.6)	(0.5)									(0.5)		(1.1)
Restatement Impacts | Correction of misclassification of Selling and Marketing Expenses
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) to selling, general, and administrative expense	(0.2)	0.5	0.9	0.4	0.6	0.3	0.4	0.2	1.3	0.6	1.8	0.9	1.6	1.5	1.6
Increase (decrease) to revenue			$ 0.9	0.4	0.6	0.3	0.4	0.2	1.3	0.6		0.9
Restatement Impacts | Correction for the timing and recognition of customer price concessions
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) to revenue	(1.3)												(1.3)		(0.3)
Restatement Impacts | Tax adjustments related to adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) to income tax expense	(0.4)			0.1	(0.2)	$ (0.3)	0.1		0.1	0.1	0.1	(0.2)	(0.2)	0.4	(0.1)
Restatement Impacts | Correction of other immaterial errors
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (decrease) to cost of sales				(0.1)	(1.2)			0.1	(0.1)	0.1	(0.1)	0.1	0.1	(1.2)	(1.3)
Increase (decrease) to selling, general, and administrative expense	$ 0.5	$ (0.1)		0.2			$ 0.4	0.3	0.2	(0.2)		(0.2)	0.6	(0.2)	0.2
Increase (decrease) to revenue				0.1	(1.4)			$ 0.3	0.1	$ 0.3	0.2	$ 0.3	0.1	(1.1)	$ (1.5)
(Increase) decrease to other expense (income)				$ (0.1)	$ (0.1)				$ (0.1)		$ (0.1)		$ (0.1)	$ 0.1