Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 334,479	$ 473,956
Marketable securities	184,023	249,493
Accounts receivable, net	435,269	414,209
Inventories	136,752	124,871
Income tax receivable	573	6,957
Prepaid expenses and other current assets	28,656	42,325
Total current assets	1,119,752	1,311,811
Property and equipment, net	82,756	106,286
Operating lease right-of-use assets	70,225
Goodwill	64,812	60,979
Intangible assets, net	16,746	23,620
Deferred tax assets	4,111	4,489
Other assets	9,684	8,362
Total assets	1,368,086	1,515,547
Current liabilities:
Accounts payable	194,626	251,657
Accrued liabilities	513,530	437,234
Operating lease liabilities	23,511
Deferred revenue	32,307	29,400
Income taxes payable	636	1,092
Total current liabilities	764,610	719,383
Long-term deferred revenue	8,535	7,436
Long-term operating lease liabilities	67,902
Other liabilities	39,776	52,790
Total liabilities	880,823	779,609
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 10,000,000 shares authorized	0	0
Additional paid-in capital	1,126,827	1,055,046
Accumulated other comprehensive income (loss)	188	(66)
Accumulated deficit	(639,778)	(319,067)
Total stockholders’ equity	487,263	735,938
Total liabilities and stockholders’ equity	$ 1,368,086	$ 1,515,547
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Class A common stock, $0.0001 par value, 600,000,000 shares authorized; 221,081,203 and 207,453,624 shares issued and outstanding as of December 31, 2018 and 2017, respectively [Member]
Stockholders’ equity:
Common stock	$ 23	$ 22
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	600,000,000	600,000,000
Common Stock, Shares, Issued	235,565,181	221,081,203
Common stock outstanding (in shares)	235,565,181	221,081,203
Class B common stock, $0.0001 par value, 350,000,000 shares authorized; 31,281,638 and 31,302,898 shares issued and outstanding as of December 31, 2018 and 2017, respectively [Member]
Stockholders’ equity:
Common stock	$ 3	$ 3
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	350,000,000	350,000,000
Common Stock, Shares, Issued	29,318,245	31,281,638
Common stock outstanding (in shares)	29,318,245	31,281,638