Results of Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Equity Method Investments And Joint Ventures [Abstract]
Revenue	$ 1,421	[1]	$ 15,353	[2]	$ 7,229	[1]	$ 40,948	[2]
Net income (loss)	(548)	[1]	(750)	[2]	(1,186)	[1]	(5,938)	[2]
Equity income (loss) excluding impairments and amortization of intangible assets	(10)	[1]	(247)	[2]	(546)	[1]	(1,802)	[2]
Amortization of intangible assets	(48)	[1]	(48)	[2]	(144)	[1]	(117)	[2]
Total equity income (loss)	$ (58)	[1]	$ (295)	[2]	$ (690)	[1]	$ (1,919)	[2]

[1] Includes Acquirgy and CIML.

[2] Includes Acquirgy, CIML (from February 20, 2013, the date of deconsolidation), Freeborders, Inc. (“Freeborders”) and WhiteFence.