UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Software license	$ 92,390	$ 68,345
Maintenance	58,965	52,975
Services	71,892	57,538
Total revenue	223,247	178,858
Cost of revenue:
Software license	1,300	1,021
Maintenance	7,218	5,915
Services	59,572	49,574
Total cost of revenue	68,090	56,510
Gross profit	155,157	122,348
Operating expenses:
Selling and marketing	71,288	61,078
Research and development	40,296	34,920
General and administrative	12,335	11,048
Acquisition-related		919
Restructuring		258
Total operating expenses	123,919	108,223
Income from operations	31,238	14,125
Foreign currency transaction gain	676	1,376
Interest income, net	165	290
Other expense, net	(279)	(2,298)
Income before provision for income taxes	31,800	13,493
Provision for income taxes	4,779	3,093
Net income	$ 27,021	$ 10,400
Earnings per share:
Basic	$ 0.35	$ 0.14
Diluted	$ 0.33	$ 0.13
Weighted-average number of common shares outstanding:
Basic	76,761	76,375
Diluted	81,875	79,235
Cash dividends declared per share	$ 0.03	$ 0.03