Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 314,250	$ 334,603
Short-term investments	627,892	704,955
Accounts receivable, net of allowance for doubtful accounts of $2,836 and $2,263 at September 30, 2020 and December 31, 2019, respectively	133,897	171,459
Inventories	5,371	5,892
Prepaid expenses and other current assets	97,207	96,827
Total current assets	1,178,617	1,313,736
Property and equipment, net	83,997	93,812
Operating lease right-of-use assets, net	51,604	58,758
Goodwill	1,213,454	1,205,292
Intangible assets, net	105,856	134,420
Deposits and other long-term assets	70,994	84,468
TOTAL ASSETS	2,704,522	2,890,486
CURRENT LIABILITIES:
Accounts payable	6,095	26,271
Operating lease liabilities, current	18,109	18,437
Accrued and other current liabilities	21,333	24,496
Accrued compensation	86,276	59,513
Convertible senior notes, current, net	0	117,288
Deferred revenue, current	567,201	603,944
Total current liabilities	699,014	849,949
Convertible senior notes, non-current, net	949,648	893,273
Deferred revenue, non-current	326,414	370,623
Operating lease liabilities, non-current	61,882	70,481
Other long-term liabilities	4,404	4,494
Total liabilities	2,041,362	2,188,820
Commitments and contingencies (NOTE 10)
Stockholders' equity:
Common stock, par value of $0.0001 per share; 1,000,000 shares authorized, 227,707 shares and 219,422 shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	23	22
Additional paid-in capital	3,513,618	3,457,359
Treasury stock, at cost; 1,778 shares and 3,333 shares as of September 30, 2020 and December 31, 2019, respectively	(80,000)	(150,000)
Accumulated other comprehensive income	5,114	1,180
Accumulated deficit	(2,775,595)	(2,606,895)
Total stockholders’ equity	663,160	701,666
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,704,522	$ 2,890,486