Consolidated Core Companies - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended						12 Months Ended			6 Months Ended	12 Months Ended						1 Months Ended		12 Months Ended				1 Months Ended	12 Months Ended				1 Months Ended						1 Months Ended	12 Months Ended					1 Months Ended	12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Mar. 30, 2012	Dec. 31, 2012 Minimum	Dec. 31, 2012 Maximum	Dec. 31, 2012 Investorforce	Dec. 31, 2011 Investorforce	Dec. 31, 2010 Investorforce	Dec. 31, 2012 Channel Intelligence	Dec. 31, 2012 Channel Intelligence	Jul. 11, 2012 Channel Intelligence	Dec. 31, 2012 Customer Relationships	Dec. 31, 2012 Trademarks, trade names and domain names	Dec. 31, 2012 Licensing And Servicing Agreements	Dec. 31, 2012 Developed Technology	Jan. 31, 2013 Subsequent Event Investorforce	Feb. 20, 2013 Subsequent Event Channel Intelligence	Dec. 31, 2012 MSDSonline	Dec. 31, 2011 MSDSonline	Dec. 31, 2010 MSDSonline	Mar. 30, 2012 MSDSonline	Aug. 31, 2010 GovDocs	Dec. 31, 2012 Procurian	Dec. 31, 2011 Procurian	Dec. 31, 2010 Procurian	Jun. 29, 2012 Procurian	Dec. 24, 2010 Procurian Common Stock	Dec. 24, 2010 Procurian Common Stock Noncontrolling Interest	Aug. 04, 2010 Procurian Series E and E One Preferred Stock	Aug. 04, 2010 Procurian Series E and E One Preferred Stock Noncontrolling Interest	Jun. 29, 2012 Procurian Media Iq Llc	Jul. 31, 2012 Procurian Utilities Analyses Inc	Dec. 27, 2012 SeaPass	Dec. 31, 2012 SeaPass	Dec. 31, 2011 SeaPass	Dec. 31, 2010 SeaPass	Dec. 27, 2012 SeaPass Minimum	Dec. 27, 2012 SeaPass Maximum	Jul. 11, 2012 Icg Channel Intelligence	Dec. 31, 2012 GovDelivery	Dec. 31, 2011 GovDelivery	Dec. 31, 2010 GovDelivery	Dec. 31, 2012 CIML, LLC	Dec. 31, 2011 CIML, LLC	Dec. 31, 2010 CIML, LLC
Subsidiary or Equity Method Investee [Line Items]
Equity Acquired												96.00%																		96.00%
Total Acquisition price																																								$ 11,500,000
Common shares purchased																																			4,000,000
Deferred cash payment																																								2,000,000
Deferred cash payment due on one year anniversary of the transaction																																								1,000,000
Deferred cash payment due on two year anniversary of the transaction																																								1,000,000
Cash paid for acquisition																																									6,700,000
Additional equity ownership acquired																																										13,200,000						2,000,000
Equity method investment, ownership percentage													20.00%	50.00%						50.00%																										37.80%	52.70%
Gain on assets and liabilities acquired	24,859,000	31,569,000	1,054,000	397,000	16,440,000	(374,000)	1,612,000	24,946,000	57,879,000	42,624,000	74,147,000																															25,500,000
Revenue															8,600,000	7,100,000	6,500,000	10,500,000
Net loss																			(1,200,000)
Amortization of intangible assets	1,901,000	1,829,000	1,436,000	424,000	399,000	338,000	338,000	337,000	5,590,000	1,412,000	1,357,000								1,500,000
Consideration from divestiture of business																									23,500,000	125,000,000					1,800,000
Consideration from sale of business in cash																									20,700,000	60,500,000					700,000
Gain on sale of business																									15,000,000	17,000,000
Ownership percentage																		52.00%	52.00%
Non controlling interest existed for other shareholders	73,134,000				7,613,000				73,134,000	7,613,000								33,900,000	33,900,000
Goodwill in discontinued operations															700,000	700,000		48,900,000	48,900,000
Discontinued operations intangible assets																		22,400,000	22,400,000		9,500,000	6,700,000	3,500,000	2,700,000
Assets of discontinued operations															3,400,000			7,100,000	7,100,000
Liabilities of discontinued operations															3,900,000			6,500,000	6,500,000
Net income loss	(32,000)	(2,001,000)	(292,000)	(674,000)	(539,000)	(804,000)	(911,000)	(848,000)	(2,999,000)	(3,102,000)	(2,126,000)				1,400,000	2,500,000	2,300,000
Consideration from sale of business, redemption of preferred stock																															800,000
Consideration from sale of business in notes receivable																															300,000
Percentage of equity interest acquired																															93.00%
Decrease (Increase) in noncontrolling interest																																(64,700,000)	300,000			1,600,000		5,100,000
Dilution loss										(496,000)	67,000																					700,000
Decrease in additional paid in capital																																	1,000,000
Hypothetical percentage of ownership interest																											96.00%	96.00%	96.00%			85.00%	85.00%	85.00%									53.00%	53.00%	53.00%				92.00%	92.00%	92.00%	52.00%	52.00%	52.00%
Payment of cash dividend											3,206,000																									8,000,000	1,600,000	27,000,000	1,600,000
Increase in additional paid in capital																																						$ 3,500,000
Percentage of Procurian's common stock held by the noncontrolling interest																																					20.00%