Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value Measurements Of Financial Instruments [Line Items]
Standby and trade letters of credit for various corporate purposes	$ 8.8		$ 9.0
Accumulated other comprehensive loss	(254.3)		(243.2)
Fair value of assets	0.7		0.2
Standby Letters Of Credit Which Support Products Corporations Self Insurance Programs
Fair Value Measurements Of Financial Instruments [Line Items]
Standby and trade letters of credit for various corporate purposes	7.5		7.7
Foreign exchange contracts
Fair Value Measurements Of Financial Instruments [Line Items]
Derivative, notional amount	61.2		7.6
Interest Rate Swap
Fair Value Measurements Of Financial Instruments [Line Items]
Derivative, notional amount	$ 400.0
Term of contract	3 years
Floor interest rate (percent)	1.00%
Fixed interest rate (percent)	2.0709%
Fixed interest rate on debt (percent)	5.0709%
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ (2.3)
Deferred Gain - Hedging
Fair Value Measurements Of Financial Instruments [Line Items]
Accumulated other comprehensive loss	$ (4.2)	$ (4.1)	$ (2.2)