Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 169,227	$ 220,341
Short-term marketable securities	25,682
Prepaid expenses and other current assets	5,168	4,723
Total current assets	200,077	225,064
Property and equipment, net	7,024	7,287
Right of use assets	32,587	30,551
Restricted cash	1,823	1,820
Total assets	241,511	264,722
Current liabilities:
Accounts payable	5,452	5,506
Accrued expenses	2,753	6,663
Deferred revenue	9,417	14,068
Lease liabilities	1,296	397
Total current liabilities	18,918	26,634
Lease liabilities, net of current portion	30,186	30,597
Term loan	15,000	15,000
Total liabilities	64,104	72,231
Stockholders’ equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized, no shares issued or outstanding at March 31, 2021 and December 31, 2020, respectively
Common stock, $0.001 par value; 200,000,000 shares authorized, 34,216,186 and 33,964,000 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively	34	34
Additional paid-in capital	293,137	287,829
Accumulated other comprehensive income	10	27
Accumulated deficit	(115,774)	(95,399)
Total stockholders’ equity	177,407	192,491
Total liabilities and stockholders’ equity	$ 241,511	$ 264,722