Reconciliation of Income Tax Benefit (Provision) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Income Taxes [Line Items]
Federal statutory rate	$ (3,417)	$ (598)	$ 3,762
State statutory, net of federal benefit	577	139	0
Change in valuation allowance	6,113	1,380	(2,899)
Permanent items	(34)	(19)	(42)
Foreign tax effects	0	0	(283)
Other	(306)	(318)	0
Income tax benefit (provision)	$ 2,933	$ 584	$ 538