Income Taxes - Reconciliation Between U.S. Federal Income Tax Rate and Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
U.S. federal income tax rate	35.00%	35.00%	35.00%
State income taxes—U.S.	1.30%	0.80%	0.60%
Taxes on non-U.S. income	(2.10%)	(2.20%)	(4.50%)
Taxes on non-U.S. income - European reorganization	6.90%	0.00%	0.00%
Research and development credit	(1.10%)	(0.70%)	(1.50%)
Manufacturing deduction credit	(1.60%)	(1.00%)	(1.10%)
Valuation allowances	1.70%	(0.60%)	0.50%
Other	(0.10%)	1.00%	0.30%
Effective income tax rate	40.00%	32.30%	29.30%