Other Income (Loss) - Additional Information (Detail) (USD $)	12 Months Ended							1 Months Ended	12 Months Ended							12 Months Ended			1 Months Ended	12 Months Ended				1 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2012 Go Industry	Sep. 30, 2012 Go Industry	Feb. 17, 2011 Metastorm	Dec. 31, 2013 Metastorm	Dec. 31, 2012 Metastorm	Dec. 31, 2011 Metastorm	Dec. 31, 2011 Click Equations	Dec. 31, 2012 Star Cite	Dec. 31, 2011 Star Cite	Dec. 30, 2011 Star Cite	Dec. 31, 2013 Star Cite Maximum	Dec. 31, 2013 Star Cite Active Network Inc	Dec. 31, 2012 Star Cite Active Network Inc	Jul. 11, 2012 C I M L	Dec. 31, 2012 ICE	Dec. 31, 2013 Free Border	Dec. 31, 2013 WhiteFence	Dec. 31, 2011 Anthem	Dec. 27, 2012 Bolt
Schedule Of Equity Method Investments [Line Items]
Sale Proceeds						$ 2,900,000		$ 53,000,000						$ 24,900,000
Carrying value	775,000	[1]	13,333,000	[2]			0
Gain or Loss on sale						2,900,000			2,800,000		26,000,000	800,000	400,000	14,100,000							300,000	4,300,000
Sale proceeds received								51,300,000
Escrowed proceeds received										200,000
Dilution gain on equity method businesses					496,000
Equity method cash															15,800,000							5,400,000
Common stock															615,862
Common stock valued															8,400,000
Closing price of stock															$ 13.60
Cash consideration															100,000
Shares of stock consideration															102,199
Active common stock released from escrow													83,627
Proceed from sale of securities	760,000		7,632,000														800,000	7,500,000		1,800,000
Sale of common stock																	150,233	447,057
Common stock price per share																	$ 5.10	$ 16.88
Realized gains on sales of marketable securities	23,000		1,552,000										1,400,000			100,000				100,000
Impairment charges on common stock													600,000
Gain on fair value of prior equity interest			51,668,000																26,200,000					25,500,000
Number of Shares Distributed has Escrowed Proceeds Related to the Disposition of a Former Company																				12,989
Gain (loss) on sales/distributions of ownership interests	(4,032,000)		5,260,000		40,873,000															1,700,000
Deferred gain on sale																						1,600,000
Aggregate gain on ownership interest					1,600,000
Gain on other distributions					$ 1,856,000																		$ 1,900,000

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

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