Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 03, 2014	Mar. 30, 2012	Dec. 31, 2010
Income Taxes [Line Items]
Current state and foreign tax expense	$ 100,000.0	$ 400,000	$ 100,000
Current federal income tax benefit	144,000	8,790,000	17,711,000
Income tax (benefit) expense related to income from discontinued operations	0	(8,934,000)	(17,571,000)
Income tax expense related to income from discontinued operations		10,100,000	20,400,000
Deferred tax expense (benefit)	131,000	(4,564,000)	0
Increase (decrease) in valuation allowance		200,000
Foreign tax asset	(19,000)	(64,000)	0
Annual net operating loss carryforward, limitation on use	14,500,000	145,200,000	$ 43,500,000
Operating loss carryforwards	172,000,000
Increase (decrease) in deferred tax asset, net	300,000
Interest and penalties expense		100,000
GovDelivery
Income Taxes [Line Items]
Annual net operating loss carryforward, limitation on use	1,000,000
Operating loss carryforwards						$ 2,800,000
VelocityEHS
Income Taxes [Line Items]
Annual net operating loss carryforward, limitation on use	20,200,000				$ 1,700,000
Operating loss carryforwards					$ 50,900,000
Annual limitation of future net operating loss carryforward	50,900,000
FolioDynamix
Income Taxes [Line Items]
Annual net operating loss carryforward, limitation on use	23,300,000			$ 8,900,000
Operating loss carryforwards				$ 36,500,000
Annual limitations on net operating loss	6,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, intangible assets, other than goodwill	46,600,000
Business combination, recognized identifiable assets acquired and liabilities assumed, net deferred tax liabilities	1,600,000
Federal income tax benefit from continuing operations		(1,300,000)
Deferred tax liability, state taxes	300,000	300,000
Textizen
Income Taxes [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, intangible assets, other than goodwill	600,000
Business combination, recognized identifiable assets acquired and liabilities assumed, net deferred tax liabilities	100,000
Deferred tax liability, state taxes	$ 100,000
Procurian
Income Taxes [Line Items]
Income tax expense related to income from discontinued operations		1,300,000
MSDSonline One
Income Taxes [Line Items]
Deferred tax expense (benefit)		(3,100,000)
Bolt
Income Taxes [Line Items]
Foreign tax asset		100,000
Investor Force
Income Taxes [Line Items]
Operating loss carryforwards		$ 25,700,000