UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue:
Software license	$ 68,833	$ 58,948	$ 207,849	$ 180,420
Maintenance	55,038	52,285	163,174	150,366
Services	58,931	51,170	179,633	147,554
Total revenue	182,802	162,403	550,656	478,340
Cost of revenue:
Software license	1,313	1,000	3,646	3,106
Maintenance	6,659	5,644	18,889	16,300
Services	52,465	48,797	154,512	140,875
Total cost of revenue	60,437	55,441	177,047	160,281
Gross profit	122,365	106,962	373,609	318,059
Operating expenses:
Selling and marketing	67,032	53,640	202,126	169,764
Research and development	38,036	33,032	108,530	94,248
General and administrative	11,725	9,579	34,067	26,138
Acquisition-related	74		2,616	39
Restructuring			287
Total operating expenses	116,867	96,251	347,626	290,189
Income from operations	5,498	10,711	25,983	27,870
Foreign currency transaction gain (loss)	1,082	(412)	2,764	(4,342)
Interest income, net	172	278	650	807
Other expense, net	(1,237)	(331)	(4,891)	(328)
Income before provision for income taxes	5,515	10,246	24,506	24,007
Provision for income taxes	3,097	3,921	9,436	8,643
Net income	$ 2,418	$ 6,325	$ 15,070	$ 15,364
Earnings per share:
Basic	$ 0.03	$ 0.08	$ 0.20	$ 0.20
Diluted	$ 0.03	$ 0.08	$ 0.19	$ 0.19
Weighted-average number of common shares outstanding
Basic	76,278	76,534	76,323	76,521
Diluted	79,082	79,174	78,976	78,906
Cash dividends declared per share	$ 0.03	$ 0.03	$ 0.09	$ 0.09