Reconciliation Between U.S. Federal Income Tax Rate and Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
U.S. federal income tax rate	35.00%	35.00%	35.00%
State income taxes—U.S.	0.60%	1.20%	1.00%
Taxes on non-U.S. income	(4.50%)	(1.00%)	(2.00%)
Research and development credit	(1.50%)	0.00%	(1.30%)
Manufacturing deduction credit	(1.10%)	(2.00%)	(0.30%)
Valuation allowances	0.50%	(0.20%)	0.10%
Other	0.30%	(1.00%)	0.90%
Effective income tax rate	29.30%	32.00%	33.40%