Discontinued Operations - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from discontinued operations and disposal		$ 0.0	$ (1.0)	$ 0.0	$ (3.9)
Other current liabilities		0.8		0.8		$ 2.1
Other long-term liabilities		1.8		1.8		2.0
Unrecognized Tax Benefit, Decrease Resulting From Discontinued Operations and Disposal					1.0
Environmental Restoration Costs
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other current liabilities		0.3		0.3		0.6
Latvian Commercial Dispute
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Charge in period from litigation					$ 1.5
Percent of legal fees					50.00%
Fire Rescue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal					$ 4.0
Net loss from operations					(0.6)
Other current liabilities		0.0		0.0		1.3
Other long-term liabilities		0.0		0.0		0.0
Fire Rescue | Latvian Commercial Dispute
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Charge in period from litigation					1.5
North American Refuse Truck Body Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other long-term liabilities		$ 1.8		$ 1.8		$ 1.8
Discontinued Operations, Held-for-sale | Fire Rescue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss from operations	[1]				(0.6)
Income tax benefit	[1]				$ (0.2)

[1] Only includes activity in the period up to the completion of the sale on January 29, 2016.