Acquisitions, Assets and Liabilities Held for Sale - Purchase Price Allocation (Details) - 2016 Acquisitions $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($)
Business Acquisition [Line Items]
Cash paid for acquisition of businesses	$ 247.9
Amounts due to sellers	14.5
Estimated purchase price	262.4
Assets acquired:
Accounts and notes receivable	60.4
Inventories	33.7
Property and equipment	44.2
Goodwill and identifiable intangible assets	172.0
Other current and long-term assets	11.2
Liabilities assumed:
Accounts payable	(33.0)
Accrued expenses and other current liabilities	(25.9)
Long-term liabilities and deferred tax liabilities	(0.3)
Estimated purchase price	$ 262.4