CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net revenues:
Recurring revenues	$ 88,116	$ 81,090	$ 260,862	$ 240,752
Non-recurring revenues	8,651	9,084	24,518	26,050
Total net revenues	96,767	90,174	285,380	266,802
Cost of revenues:
Recurring revenues	17,782	17,216	52,173	51,962
Non-recurring revenues	11,501	13,011	31,088	33,615
Amortization of developed technology	2,508	2,586	7,405	7,700
Total cost of revenues	31,791	32,813	90,666	93,277
Gross margin	64,976	57,361	194,714	173,525
Operating expenses:
Sales and marketing	18,546	17,965	58,967	56,122
Product development	17,369	17,077	52,254	50,377
General and administrative	10,894	8,752	43,895	27,619
Amortization of other intangibles	953	955	2,863	2,867
Recapitalization costs			6,041
Restructuring (benefit) charges	(157)	(17)	2,959	53
Total operating expenses	47,605	44,732	166,979	137,038
Income from continuing operations	17,371	12,629	27,735	36,487
Interest and other income (expense), net	(2,977)	(130)	(4,610)	(1,105)
Income from continuing operations before income taxes	14,394	12,499	23,125	35,382
Provision for income taxes	4,561	4,812	5,390	13,181
Net income from continuing operations	9,833	7,687	17,735	22,201
Discontinued operation:
Net (loss) income from discontinued operation (net of applicable taxes of $(16), $(13), $45 and $134, respectively)	(20)	11	68	233
Net income	$ 9,813	$ 7,698	$ 17,803	$ 22,434
Basic net income (loss) per share:
Continuing operations (in dollars per share)	$ 0.19	$ 0.15	$ 0.35	$ 0.44
Discontinued operation (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Total operations (in dollars per share)	$ 0.19	$ 0.15	$ 0.35	$ 0.44
Diluted net income (loss) per share:
Continuing operations (in dollars per share)	$ 0.18	$ 0.15	$ 0.33	$ 0.42
Discontinued operation (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Total operations (in dollars per share)	$ 0.18	$ 0.15	$ 0.33	$ 0.43
Weighted average shares used to compute net income (loss) per share:
Basic (in shares)	51,576	50,401	51,241	50,722
Diluted (in shares)	53,937	52,248	53,329	52,764