Schedule of Effective Income Tax Rate Reconciliation (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income tax expense at federal statutory rate	35.00%	35.00%	35.00%
State taxes, net of federal tax effect	1.60%	1.70%	(4.30%)
Foreign earnings taxed at different rates	(15.50%)	(14.00%)	2.90%
Withholding tax	1.40%	1.10%	14.30%
Foreign tax credit	(1.00%)	(0.30%)	(9.60%)
Other international components	(0.10%)	0.80%	0.80%
Change in valuation allowance	(0.80%)	(0.10%)	21.10%
Deferred tax adjustments and rate changes	0.10%	(0.10%)	(4.90%)
Meals and entertainment	0.40%	0.30%	5.90%
Non-deductible officers compensation	0.10%	0.00%	2.00%
Personal use of corporate aircraft	0.10%	0.10%	2.50%
Subpart F income	0.60%	0.50%	4.00%
Research and development tax credit	(0.80%)	(0.60%)	(13.70%)
Section 199 Deduction	(1.80%)	(1.50%)	(0.00%)
Other permanent differences	0.30%	0.30%	(1.60%)
Total	19.60%	23.20%	54.40%