Summary of Financial Information for Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014		Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Revenues	$ 75,047	$ 69,527		$ 221,218	$ 206,079
Costs & expenses	53,000	50,775	[1]	161,276	149,172	[2]
Depreciation & amortization	2,116	2,292		6,712	6,819
Operating income (loss) before income taxes	19,931	16,460		53,230	50,088
Total segment operating income | Outsourced Portals
Segment Reporting Information [Line Items]
Revenues	70,123	65,304		207,067	193,595
Costs & expenses	44,703	42,529	[1]	136,201	125,916	[2]
Depreciation & amortization	1,973	2,201		6,322	6,568
Operating income (loss) before income taxes	23,447	20,574		64,544	61,111
Total segment operating income | Other Software & Services
Segment Reporting Information [Line Items]
Revenues	4,924	4,223		14,151	12,484
Costs & expenses	1,365	1,316	[1]	3,975	3,595	[2]
Depreciation & amortization	15	8		33	29
Operating income (loss) before income taxes	3,544	2,899		10,143	8,860
Other Reconciling Items
Segment Reporting Information [Line Items]
Costs & expenses	6,932	6,930	[1]	21,100	19,661	[2]
Depreciation & amortization	128	83		357	222
Operating income (loss) before income taxes	$ (7,060)	$ (7,013)		$ (21,457)	$ (19,883)

[1] The Company reclassified certain income statement employee benefit-related expenses for the three-month period ended September 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 nine-month period ended September 30, 2014 to conform to the 2015 presentation. The reclassification resulted in a reduction of costs & expenses in Other Reconciling Items of $3.2 million and corresponding increases in costs & expenses of $3.1 million and $0.1 million, respectively, in Outsourced Portals and Other Software & Services. See Note 1.