Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 49,810	$ 163,635
Investments	268,354	208,701
Prepaid expenses and other current assets	6,329	5,847
Total current assets	324,493	378,183
Property and equipment, net	34,565	36,786
Goodwill	39,154	39,154
Intangible assets	25,150	25,150
Restricted cash	1,362	1,362
Deposits	514	529
Operating lease right-of-use assets, net	4,003	4,173
Finance lease right-of-use asset, net	41,825	42,363
Total assets	471,066	527,700
Current liabilities:
Accounts payable and accrued expenses	32,435	37,827
Operating lease liabilities, current	1,006	1,001
Finance lease liability, current	1,870	1,856
Total current liabilities	35,311	40,684
Operating lease liabilities, non-current	3,095	3,258
Finance lease liability, non-current	19,381	19,383
Other liabilities	1,141	1,141
Total liabilities	58,928	64,466
Commitments and contingencies (Note 13)
Stockholders' equity:
Common stock, $0.01 par value, 180,000,000 shares authorized; 106,753,886 and 106,453,818 shares issued and outstanding at March 31, 2025 and December 31, 2024, respectively	1,068	1,065
Additional paid-in capital	1,690,547	1,680,219
Accumulated other comprehensive (loss) income	(27)	66
Accumulated deficit	(1,279,450)	(1,218,116)
Total stockholders' equity	412,138	463,234
Total liabilities and stockholders' equity	471,066	527,700
Series A Convertible Preferred Shares
Stockholders' equity:
Preferred stock
Series B Convertible Preferred Shares
Stockholders' equity:
Preferred stock