Income Taxes - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended								12 Months Ended							12 Months Ended		1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended
	Mar. 30, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2013 Msdsonline One	Mar. 30, 2012 Msdsonline One	Dec. 31, 2013 Minimum	Dec. 31, 2009 Minimum	Mar. 30, 2012 Minimum Msdsonline One	Dec. 31, 2013 Maximum	Dec. 31, 2011 Maximum	Mar. 30, 2012 Maximum Msdsonline One	Dec. 31, 2013 Continuing Operations	Dec. 31, 2012 Continuing Operations	Dec. 31, 2011 Continuing Operations	Dec. 31, 2011 Procurian	Dec. 31, 2013 Investor Force	Dec. 31, 2013 GovDelivery
Income Taxes [Line Items]
Income tax (benefit) expense		$ (17,601,000)	$ (99,000)	$ 56,000	$ 73,000	$ 41,000	$ 3,330,000	$ (2,457,000)	$ (806,000)	$ (17,571,000)	$ 1,336,000	$ (4,287,000)											$ 100,000	$ 108,000	$ (464,000)
Current tax expense										(17,571,000)	1,203,000	29,000
Net deferred tax benefit										0	133,000	(4,316,000)
Discontinued operations											1,200,000
Tax benefit included in the activities of the deferred tax asset												3,800,000
Income tax benefit presented in continuing operations										17,700,000
Income tax benefit related to reconciliation of tax depreciation						800,000					800,000
Net deferred tax benefit related to release of valuation allowances																										4,500,000
Return-to-provision adjustment for alternative minimum taxes													300,000
Interest received on income tax refund												200,000														200,000
Annual limit on utilization of carry forwards, amount available		145,200,000				43,500,000				145,200,000	43,500,000		29,000,000	14,500,000														1,000,000
Net operating loss carryforward expiration year																	2018	2018		2033	2023
Net operating loss carry forwards		82,000,000								82,000,000																	15,000,000	2,800,000
Net deferred tax liability																												4,800,000
Net operating loss																50,900,000
Net operating loss expire period																			2019			2031
Annual limitations on net operating loss															1,700,000
Annual limitation of expected net operating loss															47,400,000
Net operating loss currently available subject to limitations	9,400,000
Net operating loss that are not subject to limitations	$ 82,000,000