CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 209,854	$ 224,764
Accounts receivable, net of allowance for credit losses of $2,264 and $2,021 at    September 30, 2020 and December 31, 2019, respectively	122,148	125,304
Prepaid expenses and other current assets	21,266	22,026
Total current assets	353,268	372,094
Property and equipment, net	15,628	13,704
Operating lease right-of-use assets	17,181	7,211
Intangible assets, net	52,677	69,752
Goodwill	128,427	128,427
Other assets	1,246	750
Total assets	568,427	591,938
Current liabilities:
Accounts payable	10,765	19,116
Accrued compensation and benefits	10,474	15,232
Other current liabilities	63,634	50,032
Deferred revenues	11,353	10,903
Contingent consideration related to acquisitions	0	27,000
Total current liabilities	96,226	122,283
Other non-current liabilities	17,926	7,119
Contingent consideration related to acquisitions	15,008	9,220
Convertible senior notes, net	174,360	166,157
Deferred tax liabilities	1,937	1,937
Total liabilities	305,457	306,716
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.00001 par value—10,000,000 shares authorized and no shares    issued or outstanding at September 30, 2020 and December 31, 2019	0	0
Common stock, $0.00001 par value—250,000,000 shares authorized; 90,799,437    and 89,371,199 shares issued and outstanding at September 30, 2020 and    December 31, 2019, respectively	1	1
Additional paid-in capital	689,013	671,060
Accumulated other comprehensive loss	(1,045)	(916)
Accumulated deficit	(424,999)	(384,923)
Total stockholders’ equity	262,970	285,222
Total liabilities and stockholders’ equity	$ 568,427	$ 591,938