Convertible Notes (Narrative) (Details) - USD ($)		1 Months Ended	3 Months Ended	12 Months Ended
	Aug. 11, 2025	Mar. 31, 2023	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2023	Mar. 26, 2025	Jan. 31, 2025	Jun. 14, 2024	Dec. 31, 2022
Line of Credit Facility [Line Items]
Conversion of convertible notes into shares	51,226,348
Debt conversion, converted instrument, amount				$ 94,139,000
Proceeds from convertible notes offering, net of issuance costs				72,769,000
Conversion price, discount percentage	20.00%
Derivative liability	$ 24,600,000			0		$ 20,800,000	$ 11,100,000	$ 1,100,000
Series F-1 [Member]
Line of Credit Facility [Line Items]
Conversion of convertible notes into shares		21,465,064
Common stock converted (in dollars per share)		$ 1.9098
Conversion price, discount percentage		33.00%
2022 Convertible Notes [Member]
Line of Credit Facility [Line Items]
Debt instrument, aggregate amount									$ 40,000,000.0
Interest rate									8.00%
Loss on conversion of notes					$ 5,100,000
Debt conversion, converted instrument, amount		$ 40,000,000.0
2025 Convertible Notes [Member]
Line of Credit Facility [Line Items]
Debt instrument, aggregate amount			$ 98,300,000
Conversion of convertible notes into shares	6,470,743
Debt conversion, converted instrument, amount	$ 98,300,000
Proceeds from convertible notes offering, net of issuance costs				72,800,000
Debt issuance costs				$ 1,200,000
Debt instrument, term				48 months
Common stock converted (in dollars per share)	$ 15.20
Conversion price, discount percentage	20.00%
Derivative liability			20,800,000				$ 11,100,000
Debt discount and debt issuances costs reclassified to additional paid-in-capital	$ 28,800,000
2025 Convertible Promissory Notes, Settled in Cash [Member]
Line of Credit Facility [Line Items]
Debt instrument, aggregate amount			74,000,000.0
2025 Convertible Promissory Notes, Settled in Lieu of Cash [Member]
Line of Credit Facility [Line Items]
Debt instrument, issued on employee-based compensation			1,300,000
2025 Convertible Promissory Notes, Issued From Conversion Of Principal Under 2024 Term Loan [Member]
Line of Credit Facility [Line Items]
Debt conversion, converted instrument, amount			$ 23,000,000.0