Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 473,956	$ 341,966
Marketable securities	249,493	337,334
Accounts receivable, net	414,209	406,019
Inventories	124,871	123,895
Income tax receivable	6,957	77,882
Prepaid expenses and other current assets	42,325	97,269
Total current assets	1,311,811	1,384,365
Property and equipment, net	106,286	104,908
Goodwill	60,979	51,036
Intangible assets, net	23,620	22,356
Deferred tax assets	4,489	3,990
Other assets	8,362	15,420
Total assets	1,515,547	1,582,075
Current liabilities:
Accounts payable	251,657	212,731
Accrued liabilities	437,234	452,137
Deferred revenue	29,400	35,504
Income taxes payable	1,092	928
Total current liabilities	719,383	701,300
Long-term deferred revenue	7,436	6,928
Other liabilities	52,790	49,884
Total liabilities	779,609	758,112
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 10,000,000 shares authorized	0	0
Additional paid-in capital	1,055,046	956,060
Accumulated other comprehensive loss	(66)	(9)
Accumulated deficit	(319,067)	(132,112)
Total stockholders’ equity	735,938	823,963
Total liabilities and stockholders’ equity	1,515,547	1,582,075
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	22	21
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