Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue:
Software license	$ 25,346	$ 33,889	$ 93,453	$ 92,432
Maintenance	29,971	23,418	85,713	58,892
Professional services	40,186	32,709	122,215	96,022
Total revenue	95,503	90,016	301,381	247,346
Cost of revenue:
Cost of software license	1,637	1,571	4,942	2,711
Cost of maintenance	2,980	3,187	9,614	7,839
Cost of professional services	37,194	30,232	107,668	82,136
Total cost of revenue	41,811	34,990	122,224	92,686
Gross profit	53,692	55,026	179,157	154,660
Operating expenses:
Selling and marketing	32,463	31,199	103,707	82,988
Research and development	16,218	14,924	47,047	40,560
General and administrative	7,222	6,442	21,193	18,246
Acquisition-related costs		111	482	5,014
Restructuring costs	(203)	407	(62)	6,487
Total operating expenses	55,700	53,083	172,367	153,295
(Loss) income from operations	(2,008)	1,943	6,790	1,365
Foreign currency transaction (loss) gain	(1,049)	1,513	140	(4,103)
Interest income, net	102	180	279	916
Other income, net	504	572	365	814
(Loss) income before (benefit) provision for income taxes	(2,451)	4,208	7,574	(1,008)
(Benefit) provision for income taxes	(7,410)	1,069	(4,389)	190
Net income (loss)	$ 4,959	$ 3,139	$ 11,963	$ (1,198)
Earnings (loss) per share:
Basic	$ 0.13	$ 0.08	$ 0.32	$ (0.03)
Diluted	$ 0.13	$ 0.08	$ 0.31	$ (0.03)
Weighted-average number of common shares outstanding
Basic	37,588	36,996	37,425	37,008
Diluted	38,930	38,534	38,864	37,008
Cash dividends declared per share	$ 0.03	$ 0.03	$ 0.09	$ 0.09