Segment Information - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 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 Segment	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of reporting segments									2
Revenue	$ 26,624	$ 20,762	$ 19,029	$ 18,422	$ 17,680	$ 16,071	$ 13,476	$ 11,974	$ 84,837	$ 59,201	$ 26,640
Procurian
Segment Reporting Information [Line Items]
Segments disposal date										Dec. 04, 2013
Channel Intelligence
Segment Reporting Information [Line Items]
Segments disposal date										Feb. 20, 2013
InvestorForce
Segment Reporting Information [Line Items]
Segments disposal date										Jan. 29, 2013
WhiteFence
Segment Reporting Information [Line Items]
Segments disposal date										Oct. 28, 2013
Free Borders
Segment Reporting Information [Line Items]
Segments disposal date										Oct. 18, 2013
Go Industry
Segment Reporting Information [Line Items]
Segments disposal date										Jul. 05, 2012
Europe and Canada
Segment Reporting Information [Line Items]
Revenue									$ 2,500	$ 2,500	$ 1,000