CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 206,334	$ 131,035
Accounts receivable, net of allowance of $599 and $162	20,434	17,795
Deferred commissions, current	4,630	3,078
Prepaid expenses and other current assets	8,673	9,382
Total current assets	240,071	161,290
Property and equipment, net	22,510	35,072
Operating lease right-of-use assets	58,496	63,904
Capitalized internal-use software, net	29,802	33,156
Acquisition intangible assets, net	23,697	33,150
Goodwill	465,602	462,927
Deferred commissions, non-current	8,464	5,384
Other assets	8,781	9,376
Total assets	857,423	804,259
Current liabilities:
Accounts payable	5,752	2,677
Accrued expenses and other current liabilities	15,715	16,077
Accrued compensation	25,693	24,031
Deferred revenue, current	164,282	139,990
Operating lease liabilities, current	8,091	8,381
Debt, current	1,900	1,900
Total current liabilities	221,433	193,056
Deferred revenue, non-current	776	1,015
Deferred tax liabilities	5,480	4,870
Debt, non-current	212,191	213,616
Operating lease liabilities, non-current	76,340	82,668
Other non-current liabilities	9,402	7,050
Total liabilities	525,622	502,275
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock ($0.00001 par value; 100,000 shares authorized; no shares issued and outstanding)	0	0
Common stock ($0.00001 par value; 800,000 shares authorized; 142,199 and 136,054 shares issued and outstanding)	1	1
Additional paid-in capital	806,002	705,143
Accumulated other comprehensive income (loss)	1,807	(444)
Accumulated deficit	(476,009)	(402,716)
Total stockholders’ equity	331,801	301,984
Total liabilities and stockholders’ equity	$ 857,423	$ 804,259