Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 234,092	$ 68,929
Marketable securities	34,117	41,531
Short-term deposits	30,053	10,000
Trade receivables (net of allowance of $1,250 and $637 at December 31, 2020 and December 31, 2019, respectively)	94,229	75,050
Prepaid expenses and other current assets	27,357	19,366
Total current assets	419,848	214,876
Long-term assets:
Operating lease right-of-use asset	47,924	55,057
Property and equipment, net	37,163	36,338
Intangible assets, net	5,846	0
Goodwill	23,135	0
Other assets	21,566	12,041
Total long-term assets	135,634	103,436
Total assets	555,482	318,312
Current liabilities:
Trade payables	850	997
Accrued expenses and other short-term liabilities	83,198	62,607
Deferred revenues	98,588	95,975
Total current liabilities	182,636	159,579
Long-term liabilities:
Convertible senior notes, net	218,460	0
Operating lease liability	54,540	57,040
Deferred revenues	2,778	5,460
Other liabilities	2,997	2,701
Total long-term liabilities	278,775	65,201
Stockholders’ equity:
Common stock of $0.001 par value - Authorized: 200,000,000 shares at December 31, 2020 and December 31, 2019; Issued and outstanding: 31,818,954 shares at December 31, 2020 and 30,583,311 shares at December 31, 2019	32	31
Accumulated other comprehensive income (loss)	9,371	(449)
Additional paid-in capital	395,410	310,682
Accumulated deficit	(310,742)	(216,732)
Total stockholders’ equity	94,071	93,532
Total liabilities and stockholders’ equity	$ 555,482	$ 318,312