CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenue:
Software license	$ 28,575	$ 25,346	$ 95,517	$ 93,453
Maintenance	32,317	29,971	97,657	85,713
Professional services	40,765	40,186	124,706	122,215
Total revenue	101,657	95,503	317,880	301,381
Cost of revenue:
Cost of software license	1,585	1,637	4,763	4,942
Cost of maintenance	3,745	2,980	11,072	9,614
Cost of professional services	32,335	37,194	103,351	107,668
Total cost of revenue	37,665	41,811	119,186	122,224
Gross profit	63,992	53,692	198,694	179,157
Operating expenses:
Selling and marketing	36,893	32,463	116,476	103,707
Research and development	19,506	16,218	57,411	47,047
General and administrative	7,192	7,222	21,171	21,193
Acquisition-related costs				482
Restructuring costs		(203)		(62)
Total operating expenses	63,591	55,700	195,058	172,367
Income (loss) from operations	401	(2,008)	3,636	6,790
Foreign currency transaction gain (loss)	438	(1,049)	337	140
Interest income, net	113	102	318	279
Other (expense) income, net	(920)	504	(1,496)	365
Income (loss) before provision (benefit) for income taxes	32	(2,451)	2,795	7,574
Provision (benefit) for income taxes	363	(7,410)	1,336	(4,389)
Net (loss) income	$ (331)	$ 4,959	$ 1,459	$ 11,963
(Loss) earnings per share:
Basic	$ (0.01)	$ 0.13	$ 0.04	$ 0.32
Diluted	$ (0.01)	$ 0.13	$ 0.04	$ 0.31
Weighted-average number of common shares outstanding
Basic	37,881	37,588	37,834	37,425
Diluted	37,881	38,930	38,897	38,864
Cash dividends declared per share	$ 0.03	$ 0.03	$ 0.09	$ 0.09