Unaudited Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 408,433	$ 377,013
Short-term investments	826,449	820,962
Accounts receivable - net of allowance for doubtful accounts of $1,836 and $1,768 at March 31, 2022 and December 31, 2021, respectively	152,729	157,362
Deferred commission expense	63,210	59,849
Prepaid expenses and other current assets	40,260	38,388
Total current assets	1,491,081	1,453,574
Long-term investments	195,045	174,895
Property and equipment, net	102,751	96,134
Capitalized software development costs, net	44,020	39,858
Right-of-use assets	276,548	280,828
Deferred commission expense, net of current portion	47,181	42,681
Other assets	39,918	29,244
Intangible assets, net	9,988	10,565
Goodwill	46,770	47,075
Total assets	2,253,302	2,174,854
Current liabilities:
Accounts payable	8,321	2,773
Accrued compensation costs	60,595	63,836
Accrued expenses and other current liabilities	84,825	74,457
Convertible senior notes	19,367	19,630
Operating lease liabilities	30,947	26,364
Deferred revenue	457,916	430,414
Total current liabilities	661,971	617,474
Operating lease liabilities, net of current portion	278,056	283,873
Deferred revenue, net of current portion	4,700	4,473
Other long-term liabilities	21,992	12,134
Convertible senior notes, net of current portion	452,747	383,101
Total liabilities	1,419,466	1,301,055
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock	48	47
Additional paid-in capital	1,378,457	1,436,089
Accumulated other comprehensive loss	(5,696)	(1,339)
Accumulated deficit	(538,973)	(560,998)
Total stockholders’ equity	833,836	873,799
Total liabilities and stockholders’ equity	$ 2,253,302	$ 2,174,854