Consolidated Condensed Balance Sheets - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 1,724.0	$ 834.5
Restricted cash	6.5	6.8
Prepaid expenses	22.8	12.5
Other current assets	3.7	4.6
Total current assets	1,757.0	858.4
Property and equipment, net	148.1	126.8
Intangible assets, net	5.5	0.3
Right-of-use assets	11.0	8.1
Other long-term assets	16.7	7.6
Total assets	1,938.3	1,001.2
Current liabilities
Accounts payable	22.7	14.6
Current portion of lease liabilities	4.5	3.7
Accrued expenses and other current liabilities	51.6	52.8
Total current liabilities	78.8	71.1
Notes payable	64.1	64.0
Lease liabilities, net of current portion	13.0	11.3
Warrant liabilities	87.6	89.4
Other long-term liabilities	13.9	12.8
Total liabilities	257.4	248.6
Commitments and contingencies (Note 7)
Stockholders’ equity
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; no shares issued and outstanding as of June 30, 2025 and December 31, 2024	0.0	0.0
Additional paid-in capital	3,665.9	2,438.4
Accumulated deficit	(1,985.0)	(1,685.6)
Accumulated other comprehensive loss	(0.1)	(0.3)
Total stockholders’ equity	1,680.9	752.6
Total liabilities and stockholders’ equity	1,938.3	1,001.2
Class A
Stockholders’ equity
Common stock	0.1	0.1
Class B
Stockholders’ equity
Common stock	$ 0.0	$ 0.0