Reconciliation of Unrecognized Tax Benefits, including Accrued Interest (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Beginning balance	$ 828	$ 1,503		$ 1,222
Foreign currency translation adjustment	18	7
Reversal of tax uncertainties reserve-expiration of statute of limitations	(846)	(707)
Accrued estimated interest		25	281
Ending balance	$ 0	$ 828		$ 1,222