Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Federal statutory rate	(35.00%)	(35.00%)	(35.00%)
Adjustments for tax effects of:
State taxes, net	(0.10%)	0.00%	(0.70%)
Stock-based compensation	0.50%	(0.50%)	1.80%
Foreign taxes	1.10%	(0.10%)	3.60%
Tax credits	(0.40%)	(0.70%)	(1.20%)
Deemed foreign dividend	0.00%	0.20%	10.30%
Intercompany debt forgiveness and other permanent adjustments	9.50%	5.00%	0.80%
Tax rate adjustment	0.20%	0.70%	(0.50%)
Uncertain tax positions	2.70%	14.90%	(1.50%)
Other	(0.40%)	3.30%	(3.10%)
Valuation allowance	25.90%	5.20%	8.70%
Effective income tax rate	4.00%	(7.00%)	(16.80%)