Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 404,346	$ 334,603
Short-term investments	509,858	704,955
Accounts receivable, net of allowance for doubtful accounts of $2,885 and $2,263 at June 30, 2020 and December 31, 2019, respectively	119,842	171,459
Inventories	5,440	5,892
Prepaid expenses and other current assets	94,654	96,827
Total current assets	1,134,140	1,313,736
Property and equipment, net	87,405	93,812
Operating lease right-of-use assets, net	54,572	58,758
Goodwill	1,213,454	1,205,292
Intangible assets, net	116,864	134,420
Deposits and other long-term assets	74,998	84,468
TOTAL ASSETS	2,681,433	2,890,486
CURRENT LIABILITIES:
Accounts payable	10,733	26,271
Operating lease liabilities, current	18,545	18,437
Accrued and other current liabilities	19,726	24,496
Accrued compensation	71,423	59,513
Convertible senior notes, current, net	0	117,288
Deferred revenue, current	563,190	603,944
Total current liabilities	683,617	849,949
Convertible senior notes, non-current, net	938,536	893,273
Deferred revenue, non-current	329,656	370,623
Operating lease liabilities, non-current	64,611	70,481
Other long-term liabilities	4,654	4,494
Total liabilities	2,021,074	2,188,820
Commitments and contingencies (NOTE 10)
Stockholders' equity:
Common stock, par value of $0.0001 per share; 1,000,000 shares authorized, 225,375 shares and 219,422 shares issued and outstanding as of June 30, 2020 and December 31, 2019, respectively	22	22
Additional paid-in capital	3,470,503	3,457,359
Treasury stock, at cost; 1,778 shares and 3,333 shares as of June 30, 2020 and December 31, 2019, respectively	(80,000)	(150,000)
Accumulated other comprehensive income	6,311	1,180
Accumulated deficit	(2,736,477)	(2,606,895)
Total stockholders’ equity	660,359	701,666
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,681,433	$ 2,890,486