Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended			0 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 30, 2012	Nov. 04, 2014
Income Taxes [Line Items]
Current income tax expense in continuing operations related to state foreign taxes									$ 400,000	$ 100,000	$ 100,000
Current federal income tax expense benefit									(8,790,000)	(17,711,000)	57,000
Income tax expense in discontinued operations									(8,934,000)	(17,571,000)	108,000
Current federal income tax expense in discontinued operations									10,100,000	20,400,000	(5,100,000)
Income from discontinued operations, including gain on sale, net of tax	10,237,000	2,426,000	1,315,000	48,000	196,685,000	4,980,000	2,448,000	28,226,000	14,026,000	232,339,000	12,483,000
Income tax (benefit) expense	(10,556,000)	(1,870,000)	(599,000)	94,000	(17,601,000)	(99,000)	56,000	73,000	(12,931,000)	(17,571,000)	1,336,000
Deferred tax assets benefit related to the reduction of the valuation allowance									(4,564,000)		133,000
Foreign deferred tax asset									(64,000)		(28,000)
Annual limit on utilization of carry forwards, amount available	14,500,000				43,500,000				14,500,000	43,500,000		14,800,000
Net operating loss carry forwards	117,000,000								117,000,000
Interest received on income tax refund									100,000
Minimum
Income Taxes [Line Items]
Net operating loss carryforward expiration year									2018
Maximum
Income Taxes [Line Items]
Net operating loss carryforward expiration year									2034
Available for Future Use
Income Taxes [Line Items]
Annual limit on utilization of carry forwards, amount available	145,200,000								145,200,000
Available for Future Use | Minimum
Income Taxes [Line Items]
Net operating loss carryforward expiration year									2018
Available for Future Use | Maximum
Income Taxes [Line Items]
Net operating loss carryforward expiration year									2023
MSDSonline One
Income Taxes [Line Items]
Deferred tax assets benefit related to the reduction of the valuation allowance									3,100,000
Annual limit on utilization of carry forwards, amount available					1,700,000					1,700,000
Net operating loss carry forwards												50,900,000
Annual limitation of expected net operating loss					47,400,000					47,400,000
MSDSonline One | Minimum
Income Taxes [Line Items]
Net operating loss carryforward expiration year												2019
MSDSonline One | Maximum
Income Taxes [Line Items]
Net operating loss carryforward expiration year												2031
Bolt
Income Taxes [Line Items]
Foreign deferred tax asset									100,000
FolioDynamix
Income Taxes [Line Items]
Annual limit on utilization of carry forwards, amount available	8,900,000								8,900,000				3,300,000
Net operating loss carry forwards													35,500,000
Annual limitations on net operating loss	5,900,000								5,900,000
Acquisition of non-goodwill intangible assets	46,600,000								46,600,000
Increase in deferred tax liability of the acquired company	1,600,000								1,600,000
Federal Income tax (benefit) expense from continuing operations									1,300,000
Deferred tax liabilities related to state taxes	300,000								300,000
FolioDynamix | Minimum
Income Taxes [Line Items]
Net operating loss carryforward expiration year													2027
FolioDynamix | Maximum
Income Taxes [Line Items]
Net operating loss carryforward expiration year													2033
Procurian
Income Taxes [Line Items]
Current federal income tax expense in discontinued operations									1,300,000
Income from discontinued operations, including gain on sale, net of tax											1,200,000
Income tax (benefit) expense											1,300,000
InvestorForce
Income Taxes [Line Items]
Net operating loss carry forwards	24,400,000								24,400,000
GovDelivery
Income Taxes [Line Items]
Annual limit on utilization of carry forwards, amount available	1,000,000								1,000,000
Net operating loss carry forwards	$ 2,800,000								$ 2,800,000