Liquidity and Uncertainties (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Jul. 31, 2025	Jul. 17, 2025	Dec. 31, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Net loss	$ 42,281,000	$ 73,238,000	$ 151,971,000	$ 147,541,000	$ 115,519,000	$ 299,512,000
Accumulated deficit	$ 1,917,701,000				$ 1,917,701,000				$ 1,802,182,000
Subsequent Event | The Financing Agreement | Line of Credit
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Additional drawn							$ 500,000,000.0	$ 500,000,000.0