Condensed Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Revenues        
License $ 103,296 $ 116,349 $ 200,540 $ 212,764
Maintenance and services 109,584 82,186 212,246 157,469
Total revenues 212,880 198,535 412,786 370,233
Cost of revenues        
License 2,942 1,602 6,209 2,633
Maintenance and services 23,723 23,262 47,111 44,724
Total cost of revenues [1] 26,665 24,864 53,320 47,357
Gross profit 186,215 173,671 359,466 322,876
Operating expenses        
Sales and marketing [1] 124,160 119,889 242,178 226,053
Research and development [1] 81,067 77,516 165,369 148,409
General and administrative [1] 25,875 23,141 50,320 41,673
Total operating expenses 231,102 220,546 457,867 416,135
Operating loss (44,887) (46,875) (98,401) (93,259)
Other income, net 4,029 1,019 5,254 2,682
Loss before income tax expense (40,858) (45,856) (93,147) (90,577)
Income tax expense 1,664 1,666 4,022 2,523
Net loss $ (42,522) $ (47,522) $ (97,169) $ (93,100)
Net loss per share:        
Basic (in usd per share) $ (0.54) $ (0.64) $ (1.25) $ (1.25)
Diluted (in usd per share) $ (0.54) $ (0.64) $ (1.25) $ (1.25)
Weighted average shares used to compute net loss per share:        
Basic (shares) 78,511 74,756 77,966 74,286
Diluted (shares) 78,511 74,756 77,966 74,286
[1] Includes stock-based compensation expense as follows: Three Months Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 (in thousands)Cost of revenues$2,790 $2,642 $5,367 $5,446Sales and marketing18,526 16,605 36,618 33,550Research and development25,648 22,409 49,163 44,508General and administrative5,150 3,715 10,161 7,067