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Condensed Consolidated Statements of Income - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Revenue:        
Product $ 380,344 $ 254,238 $ 1,025,615 $ 702,329
Service 57,289 36,023 152,704 98,869
Total revenue 437,633 290,261 1,178,319 801,198
Cost of revenue:        
Product 145,874 94,777 390,116 261,711
Service 11,142 9,064 33,599 26,526
Total cost of revenue 157,016 103,841 423,715 288,237
Total gross profit 280,617 186,420 754,604 512,961
Operating expenses:        
Research and development 79,610 70,648 242,414 202,183
Sales and marketing 40,640 33,216 116,297 92,566
General and administrative 19,535 19,535 65,009 52,298
Total operating expenses 139,785 123,399 423,720 347,047
Income from operations 140,832 63,021 330,884 165,914
Other income (expense), net:        
Interest expense (701) (735) (2,039) (2,218)
Other income (expense), net 2,136 639 4,280 1,392
Total other income (expense), net 1,435 (96) 2,241 (826)
Income before provision for income taxes 142,267 62,925 333,125 165,088
Provision for income taxes 8,545 11,668 13,757 39,682
Net income 133,722 51,257 319,368 125,406
Net income attributable to common stockholders:        
Basic 133,540 50,962 318,643 124,475
Diluted $ 133,555 $ 50,980 $ 318,704 $ 124,531
Net income per share attributable to common stockholders:        
Basic (in dollars per share) $ 1.84 $ 0.74 $ 4.43 $ 1.82
Diluted (in dollars per share) $ 1.68 $ 0.69 $ 4.06 $ 1.71
Weighted-average shares used in computing net income per share attributable to common stockholders:        
Basic (in shares) 72,588 69,076 71,903 68,365
Diluted (in shares) 79,322 73,453 78,528 72,811