Income Taxes - Reconciliation of Amounts of Unrecognized Net Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits as of January 1,	$ 16,897	$ 17,136	$ 21,036
Prior period tax position increases (decreases)		321
Decreases from settlements with tax authorities		(426)	(3,076)
Decreases due to lapse in applicable statute of limitations	(390)	(561)	(346)
Foreign currency translation increases (decreases)	(1,516)	427	(478)
Gross unrecognized tax benefits as of December 31,	$ 14,991	$ 16,897	$ 17,136