Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue:
Total revenue	$ 654,415	$ 563,309	$ 1,858,160	$ 1,555,643
Cost of revenue:
Total cost of revenue	237,141	201,726	670,125	557,258
Gross profit	417,274	361,583	1,188,035	998,385
Operating expenses:
Research and development	118,732	117,589	352,696	324,029
Sales and marketing	55,279	47,903	159,372	136,231
General and administrative	14,657	15,321	46,182	53,420
Legal settlement	0	0	0	405,000
Total operating expenses	188,668	180,813	558,250	918,680
Income from operations	228,606	180,770	629,785	79,705
Other income (expense), net	19,169	8,619	45,313	10,606
Income before income taxes	247,775	189,389	675,098	90,311
Provision for (benefit from) income taxes	38,880	20,865	75,923	(67,482)
Net income	208,895	168,524	599,175	157,793
Net income attributable to common stockholders:
Basic	208,799	168,439	598,861	157,706
Diluted	$ 208,804	$ 168,445	$ 598,880	$ 157,713
Net income per share attributable to common stockholders:
Basic (in dollars per share)	$ 2.73	$ 2.25	$ 7.85	$ 2.12
Diluted (in dollars per share)	$ 2.59	$ 2.08	$ 7.38	$ 1.95
Weighted-average shares used in computing net income per share attributable to common stockholders:
Basic (in shares)	76,426	75,011	76,301	74,506
Diluted (in shares)	80,753	81,018	81,104	80,844
Product
Revenue:
Total revenue	$ 555,066	$ 485,481	$ 1,573,652	$ 1,337,865
Cost of revenue:
Total cost of revenue	218,220	187,764	616,906	516,077
Service
Revenue:
Total revenue	99,349	77,828	284,508	217,778
Cost of revenue:
Total cost of revenue	$ 18,921	$ 13,962	$ 53,219	$ 41,181