Other Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Actual and Estimated Amortization Expense [Line Items]
Amortization expense	$ 89.5	$ 82.7	$ 63.3
Estimated amortization expense, 2014	106.0
Estimated amortization expense, 2015	104.0
Estimated amortization expense, 2016	100.5
Estimated amortization expense, 2017	97.2
Estimated amortization expense, 2018	$ 93.6