UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue:
Software license	$ 68,345	$ 57,975
Maintenance	52,975	48,752
Services	57,538	47,191
Total revenue	178,858	153,918
Cost of revenue:
Software license	1,021	1,076
Maintenance	5,915	5,180
Services	49,574	43,803
Total cost of revenue	56,510	50,059
Gross profit	122,348	103,859
Operating expenses:
Selling and marketing	61,078	55,735
Research and development	34,920	29,844
General and administrative	11,048	6,345
Acquisition-related	919	26
Restructuring	258
Total operating expenses	108,223	91,950
Income from operations	14,125	11,909
Foreign currency transaction gain (loss)	1,376	(2,962)
Interest income, net	290	313
Other expense, net	(2,298)
Income before provision for income taxes	13,493	9,260
Provision for income taxes	4,488	3,325
Net income	$ 9,005	$ 5,935
Earnings per share:
Basic	$ 0.12	$ 0.08
Diluted	$ 0.11	$ 0.08
Weighted-average number of common shares outstanding
Basic	76,375	76,401
Diluted	78,878	78,592
Cash dividends declared per share	$ 0.03	$ 0.03