Separate Financial Statements of Subsidiary not Consolidated - StarCite (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011		Dec. 30, 2011 Star Cite
Schedule Of Equity Method Investments [Line Items]
Total Assets	$ 8,310	[1]	$ 30,058	[2]			$ 51,335
Total Liabilities							32,924
Total Stockholders’ Equity							18,411
Revenue	48,316	[3]	89,958	[4]	176,481	[5]	44,968
Expenses							(50,324)
Net loss	$ (9,238)	[3]	$ (20,159)	[4]	$ (31,976)	[5]	$ (5,356)

[1] Includes (ICG voting ownership): Acquirgy (25%) and CIML (38%).

[2] Includes (ICG voting ownership): Acquirgy (25%), Freeborders (31%) and WhiteFence (36%).

[3] Includes Acquirgy, CIML, Freeborders (through October 18, 2013, the date of disposition) and WhiteFence (through October 28, 2013, the date of disposition).

[4] Includes Acquirgy, Bolt (through December 27, 2012, the date of consolidation), CIML (through July 11, 2012, the date of consolidation), Freeborders, GoIndustry (through July 5, 2012, the date of disposition) and WhiteFence.

[5] Includes Acquirgy, Bolt, CIML, ClickEquations (through June 14, 2011, the date of disposition), Freeborders, GoIndustry, Metastorm (through February 17, 2011, the date of disposition), StarCite (through December 30, 2011, the date of disposition) and WhiteFence.