CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 144,621	$ 131,035
Accounts receivable, net of allowance of $369 and $162	19,147	17,795
Deferred commissions, current	3,359	3,078
Prepaid expenses and other current assets	10,300	9,382
Total current assets	177,427	161,290
Property and equipment, net	31,204	35,072
Operating lease right-of-use assets	59,983	63,904
Capitalized internal-use software, net	32,901	33,156
Acquisition intangible assets, net	29,565	33,150
Goodwill	461,395	462,927
Deferred commissions, non-current	5,828	5,384
Other assets	8,779	9,376
Total assets	807,082	804,259
Current liabilities:
Accounts payable	5,912	2,677
Accrued expenses and other current liabilities	16,216	16,077
Accrued compensation	13,428	24,031
Deferred revenue, current	150,986	139,990
Operating lease liabilities, current	7,582	8,381
Debt, current	1,900	1,900
Total current liabilities	196,024	193,056
Deferred revenue, non-current	1,032	1,015
Deferred tax liabilities	4,961	4,870
Debt, non-current	213,141	213,616
Operating lease liabilities, non-current	78,795	82,668
Other non-current liabilities	5,738	7,050
Total liabilities	499,691	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; 138,070 and 136,054 shares issued and outstanding)	1	1
Additional paid-in capital	737,236	705,143
Accumulated other comprehensive loss	(2,880)	(444)
Accumulated deficit	(426,966)	(402,716)
Total stockholders’ equity	307,391	301,984
Total liabilities and stockholders’ equity	$ 807,082	$ 804,259