CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 77,700	$ 335,387
Marketable securities	580,294	384,518
Prepaid expenses and other current assets	8,264	6,583
Total current assets	666,258	726,488
Other assets	8,972	5,896
Total assets	675,230	732,384
Current liabilities:
Accounts payable	7,403	9,274
Accrued expenses	30,789	22,549
Total current liabilities	38,192	31,823
Total liabilities	38,192	31,823
Commitments and contingencies (Note 8)
Stockholders' equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; no shares issued or outstanding
Additional paid-in capital	1,026,546	986,819
Accumulated other comprehensive income (loss)	(1,571)	31
Accumulated deficit	(387,944)	(286,296)
Total stockholders' equity	637,038	700,561
Total liabilities and stockholders' equity	675,230	732,384
Common Class A [Member]
Stockholders' equity:
Common stock	6	6
Common Class B [Member]
Stockholders' equity:
Common stock	$ 1	$ 1

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).