Summary of Financial Information for Reportable Segments (Detail) - Entity [Domain] - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014		Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenues	$ 75,812	$ 71,155		$ 146,171	$ 136,552
Costs & expenses	54,954	50,635	[1]	108,276	98,397	[2]
Depreciation & amortization	2,304	2,277		4,596	4,527
Operating income (loss) before income taxes	18,554	18,243		33,299	33,628
Total segment operating income | Outsourced Portals
Segment Reporting Information [Line Items]
Revenues	71,030	66,809		136,944	128,291
Costs & expenses	46,587	42,906	[1]	91,499	83,510	[2]
Depreciation & amortization	2,173	2,198		4,349	4,367
Operating income (loss) before income taxes	22,270	21,705		41,096	40,414
Total segment operating income | Other Software & Services
Segment Reporting Information [Line Items]
Revenues	4,782	4,346		9,227	8,261
Costs & expenses	1,321	1,290	[1]	2,611	2,279	[2]
Depreciation & amortization	9	10		18	20
Operating income (loss) before income taxes	3,452	3,046		6,598	5,962
Other Reconciling Items
Segment Reporting Information [Line Items]
Costs & expenses	7,046	6,439	[1]	14,166	12,608	[2]
Depreciation & amortization	122	69		229	140
Operating income (loss) before income taxes	$ (7,168)	$ (6,508)		$ (14,395)	$ (12,748)

[1] The Company reclassified certain income statement employee benefit-related expenses for the three-month period ended June 30, 2014 to conform to the 2015 presentation. The reclassification resulted in a reduction of costs & expenses in Other Reconciling Items of $1.0 million and a corresponding increase in costs & expenses in Outsourced Portals. See Note 1.

[2] The Company reclassified certain income statement employee benefit-related expenses for the six-month period ended June 30, 2014 to conform to the 2015 presentation. The reclassification resulted in a reduction of costs & expenses in Other Reconciling Items of $2.1 million and corresponding increases in costs & expenses of $2.0 million and $0.1 million, respectively, in Outsourced Portals and Other Software & Services. See Note 1.