CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue:
Software license	$ 63,497	$ 54,012	$ 121,472	$ 106,626
Maintenance	49,329	45,393	98,081	90,274
Services	49,193	43,580	96,384	86,549
Total revenue	162,019	142,985	315,937	283,449
Cost of revenue:
Software license	1,030	1,177	2,106	2,756
Maintenance	5,476	5,044	10,656	9,708
Services	48,275	40,470	92,078	80,140
Total cost of revenue	54,781	46,691	104,840	92,604
Gross profit	107,238	96,294	211,097	190,845
Operating expenses:
Selling and marketing	60,389	56,342	116,124	102,149
Research and development	31,372	27,323	61,216	51,932
General and administrative	10,214	10,250	16,559	19,552
Acquisition-related	13	157	39	363
Total operating expenses	101,988	94,072	193,938	173,996
Income from operations	5,250	2,222	17,159	16,849
Foreign currency transaction (loss) gain	(968)	(4)	(3,930)	318
Interest income, net	216	163	529	287
Other income (expense), net	3	6	3	(526)
Income (loss) before provision (benefit) for income taxes	4,501	2,387	13,761	16,928
Provision for income taxes	1,397	883	4,722	5,659
Net income	$ 3,104	$ 1,504	$ 9,039	$ 11,269
Earnings per share:
Basic	$ 0.04	$ 0.02	$ 0.12	$ 0.15
Diluted	$ 0.04	$ 0.02	$ 0.11	$ 0.14
Weighted-average number of common shares outstanding:
Basic	76,626	76,286	76,514	76,385
Diluted	78,950	78,280	78,771	78,563
Cash dividends declared per share	$ 0.030	$ 0.030	$ 0.060	$ 0.045