CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Revenue:
Revenue	$ 1,298,865	$ 943,379	$ 740,739
Cost of revenue:
Amortization of intangible assets	32,583	23,475	20,474
Acquisition and integration costs	28,449	0	0
Restructuring and related	29,935	2,630	19,141
Total cost of revenue	972,942	622,223	496,739
Gross profit	325,923	321,156	244,000
Operating expenses:
Research and development	287,977	244,302	224,368
Sales and marketing	151,423	124,238	109,511
General and administrative	126,351	80,957	70,620
Amortization of intangible assets	27,280	29,296	6,160
Acquisition and integration costs	42,271	15,530	322
Restructuring and related	40,851	12,512	16,106
Total operating expenses	676,153	506,835	427,087
Loss from operations	(350,230)	(185,679)	(183,087)
Other income (expense), net:
Interest income	1,139	2,428	3,328
Interest expense	(31,657)	(22,049)	(14,017)
Other gain (loss), net	(2,907)	(9,650)	(2,160)
Total other income (expense), net	(33,425)	(29,271)	(12,849)
Loss before income taxes	(383,655)	(214,950)	(195,936)
Provision for/(benefit) from income taxes	2,963	(655)	(1,430)
Net loss	$ (386,618)	$ (214,295)	$ (194,506)
Net loss per common share:
Basic (in usd per share)	$ (2.16)	$ (1.36)	$ (1.32)
Diluted (in usd per share)	$ (2.16)	$ (1.36)	$ (1.32)
Weighted average shares used in computing net loss per common share:
Basic (in shares)	178,984	157,748	147,878
Diluted (in shares)	178,984	157,748	147,878
Product
Revenue:
Revenue	$ 1,011,488	$ 763,555	$ 610,535
Cost of revenue:
Cost of revenue	735,059	517,765	406,644
Services
Revenue:
Revenue	287,377	179,824	130,204
Cost of revenue:
Cost of revenue	$ 146,916	$ 78,353	$ 50,480