Other Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Intangible Assets
Other Intangible Assets [Line Items]
Amortization expense for intangible assets	$ 54.2	$ 55.1	$ 54.6
Software packages
Other Intangible Assets [Line Items]
Amortization expense for intangible assets	$ 24.5	$ 25.4	$ 24.7