Summary of Financial Information for Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Revenues	$ 78,390	$ 70,359
Costs & expenses	56,370	53,322
Depreciation & amortization	1,664	2,292
Operating income (loss) before income taxes	20,356	14,745
Total segment operating income | Outsourced Portals
Segment Reporting Information [Line Items]
Revenues	73,197	65,914
Costs & expenses	43,615	41,494
Depreciation & amortization	850	1,276
Operating income (loss) before income taxes	28,732	23,144
Total segment operating income | Other Software & Services
Segment Reporting Information [Line Items]
Revenues	5,193	4,445
Costs & expenses	1,413	1,290
Depreciation & amortization	14	9
Operating income (loss) before income taxes	3,766	3,146
Other Reconciling Items
Segment Reporting Information [Line Items]
Costs & expenses	11,342	10,538
Depreciation & amortization	800	1,007
Operating income (loss) before income taxes	$ (12,142)	$ (11,545)