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
Revenues        
License $ 116,655 $ 109,468 $ 329,419 $ 290,629
Maintenance and services 89,402 61,364 246,871 160,208
Total revenues 206,057 170,832 576,290 450,837
Cost of revenues        
License 1,760 988 4,393 2,337
Maintenance and services 22,270 18,888 66,994 49,713
Total cost of revenues [1] 24,030 19,876 71,387 52,050
Gross profit 182,027 150,956 504,903 398,787
Operating expenses        
Sales and marketing [1] 114,530 91,589 340,583 248,840
Research and development [1] 75,348 54,960 223,757 144,143
General and administrative [1] 21,505 17,584 63,178 50,753
Total operating expenses 211,383 164,133 627,518 443,736
Operating loss (29,356) (13,177) (122,615) (44,949)
Other income, net 814 217 3,496 1,404
Loss before income tax expense (benefit) (28,542) (12,960) (119,119) (43,545)
Income tax expense (benefit) 1,719 413 4,242 (1,166)
Net loss $ (30,261) $ (13,373) $ (123,361) $ (42,379)
Net loss per share:        
Basic (in usd per share) $ (0.40) $ (0.19) $ (1.65) $ (0.59)
Diluted (in usd per share) $ (0.40) $ (0.19) $ (1.65) $ (0.59)
Weighted average shares used to compute net loss per share:        
Basic (shares) 75,647 72,089 74,743 71,341
Diluted (shares) 75,647 72,089 74,743 71,341
[1] Includes stock-based compensation expense as follows: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 (in thousands)Cost of revenues$2,614 $1,856 $8,060 $4,804Sales and marketing17,487 11,966 51,037 31,265Research and development23,372 14,826 67,880 37,374General and administrative3,910 2,925 10,977 8,834