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Difference Between the Effective Tax Rate and the U.S. Federal Statutory Income Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Effective Tax Rate Reconciliation [Line Items]
Income tax expense at the U.S. federal tax rate	35.00%	35.00%	35.00%
Foreign income tax differential	(7.30%)	(8.10%)	(7.40%)
State and local income taxes	0.40%	0.70%	1.30%
U.S. permanent book/tax differences	(1.60%)	(0.50%)	(1.80%)
Other, net	(0.70%)	0.40%	(0.50%)
Total income tax expense	25.80%	27.50%	26.60%

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Effective Income Tax Rate Reconciliation, U.S. Permanent Book/Tax Differences

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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