CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 176,772	$ 131,035
Accounts receivable, net of allowance of $540 and $162	18,448	17,795
Deferred commissions, current	4,011	3,078
Prepaid expenses and other current assets	13,767	9,382
Total current assets	212,998	161,290
Property and equipment, net	26,661	35,072
Operating lease right-of-use assets	60,056	63,904
Capitalized internal-use software, net	32,415	33,156
Acquisition intangible assets, net	26,389	33,150
Goodwill	462,803	462,927
Deferred commissions, non-current	7,266	5,384
Other assets	8,766	9,376
Total assets	837,354	804,259
Current liabilities:
Accounts payable	6,560	2,677
Accrued expenses and other current liabilities	16,800	16,077
Accrued compensation	19,619	24,031
Deferred revenue, current	158,601	139,990
Operating lease liabilities, current	7,970	8,381
Debt, current	1,900	1,900
Total current liabilities	211,450	193,056
Deferred revenue, non-current	908	1,015
Deferred tax liabilities	5,063	4,870
Debt, non-current	212,666	213,616
Operating lease liabilities, non-current	78,221	82,668
Other non-current liabilities	7,955	7,050
Total liabilities	516,263	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; 140,238 and 136,054 shares issued and outstanding)	1	1
Additional paid-in capital	772,313	705,143
Accumulated other comprehensive loss	(1,333)	(444)
Accumulated deficit	(449,890)	(402,716)
Total stockholders’ equity	321,091	301,984
Total liabilities and stockholders’ equity	$ 837,354	$ 804,259