Reclassification out of AOCI (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Cash flow and net investment hedges, net of tax:
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax	$ (2.7)	$ (0.4)	$ (6.3)	$ 1.0
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax	1.1	0.1	2.6	(0.5)
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax	(1.6)	(0.3)	(3.7)	0.5
Pension and Other Post-Retirement Benefits, net of tax:
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax	(2.0)	(2.8)	(3.7)	(5.9)
Amortization of actuarial losses and prior service costs included in net income	(1.2)	(1.6)	(1.4)	(3.5)
Total Reclassifications	5.6	1.7	5.8	4.0
Foreign Currency Translation Adjustment Reclassification Of Losses To Net Income Pursuant To Icra Step Acquisition Net Of Tax	4.4	0	4.4	0
Foreign Currency Translation Adjustment Reclassification Of Losses To Net Income Pursuant To Icra Step Acquisition Pre Tax	4.4	0	4.4	0
Selling, General and Administrative Expenses [Member]
Pension and Other Post-Retirement Benefits, net of tax:
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax	(0.8)	(1.0)	(1.2)	(2.0)
Operating Expense [Member]
Pension and Other Post-Retirement Benefits, net of tax:
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax	(1.2)	(1.8)	(2.5)	(3.9)
Provisions for Income Taxes [Member]
Cash flow and net investment hedges, net of tax:
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax		0		0.2
Pension and Other Post-Retirement Benefits, net of tax:
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax	0.8	1.2	2.3	2.4
Icra Gain [Member]
Pension and Other Post-Retirement Benefits, net of tax:
Foreign Currency Translation Adjustment Reclassification Of Losses To Net Income Pursuant To Icra Step Acquisition Pre Tax	(4.4)		(4.4)
Interest Rate Swap [Member] | Interest Expense [Member]
Cash flow and net investment hedges, net of tax:
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax		$ (0.1)		$ (0.7)