Financial Instruments Financial Instruments - Foreign Currency Exchange Rate Risk and Concentration of Credit Risk (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Entity	Dec. 31, 2012	Dec. 31, 2011
Derivative [Line Items]
Concentration risk, percentage	99.00%
Sales Revenue, Goods, Net [Member]
Derivative [Line Items]
Number of customers	3
Concentration risk, percentage	28.20%	28.20%	27.10%
Accounts Receivable [Member]
Derivative [Line Items]
Concentration risk, percentage	14.00%	20.60%
Accumulated Translation Adjustment [Member]
Derivative [Line Items]
Foreign currency (losses) gains of net investment hedges included in accumulated other comprehensive loss, net of deferred tax benefit	$ (12.2)	$ (9.2)	$ 15.3