Segment Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reporting segments	2
GovDocs
Revenues from External Customers and Long-Lived Assets [Line Items]
Segments disposal date	Aug. 31, 2010
Metastorm
Revenues from External Customers and Long-Lived Assets [Line Items]
Segments disposal date	Feb. 17, 2011
Click Equations
Revenues from External Customers and Long-Lived Assets [Line Items]
Segments disposal date	Jun. 11, 2011
Star Cite Incorporations
Revenues from External Customers and Long-Lived Assets [Line Items]
Segments disposal date	Dec. 30, 2011
GoIndustry
Revenues from External Customers and Long-Lived Assets [Line Items]
Segments disposal date	Jul. 05, 2012
Investorforce
Revenues from External Customers and Long-Lived Assets [Line Items]
Segments disposal date	Jan. 29, 2013
Channel Intelligence
Revenues from External Customers and Long-Lived Assets [Line Items]
Segments disposal date	Feb. 20, 2013
UNITED KINGDOM
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of revenue from major customer	5.00%	7.00%	8.00%