Fair Value Measurements - Narrative (Details) $ in Thousands			3 Months Ended	12 Months Ended
	Dec. 31, 2025 USD ($) $ / shares	Sep. 24, 2025 USD ($)	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($) year $ / shares	Dec. 31, 2026 USD ($)	Jun. 30, 2026 USD ($)	Dec. 31, 2024 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Second lien loan	$ 10,872			$ 10,872	$ 10,872	$ 11,346
SAFEs	0	$ 263,000		0			$ 59,301
Second Lien Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Second lien loan		67,400
Second Lien Loans \| Convertible Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate principal amount		43,900
SAFE exchanged for Second Lien Loan \| Convertible Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Second lien loan	$ 10,000		$ 10,000	$ 10,000
2025 Simple Agreements For Future Equity \| Affiliate of AACT
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
SAFE agreement, amount exchanged		$ 10,000
Discount rate \| Second Lien Loans \| Convertible Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, measurement input	0.237		0.263	0.237
NRA Warrants \| Risk Free Interest Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input	0.038	0.038	0.039	0.038
NRA Warrants \| Measurement Input, Price Volatility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input	0.550	0.550		0.550
PIPE Warrants \| Risk Free Interest Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input	0.038	0.038	0.039	0.038
PIPE Warrants \| Measurement Input, Price Volatility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input	0.550	0.550	0.550
Redeemable convertible preferred stock warrants \| Risk Free Interest Rate \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input				0.036
Redeemable convertible preferred stock warrants \| Risk Free Interest Rate \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input				0.039
Redeemable convertible preferred stock warrants \| Measurement Input, Price Volatility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input				0.550
Redeemable convertible preferred stock warrants \| Exercise Price \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input \| $ / shares				0.01
Redeemable convertible preferred stock warrants \| Exercise Price \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input \| $ / shares				3.54
Redeemable convertible preferred stock warrants \| Expected Term \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input \| year				0
Redeemable convertible preferred stock warrants \| Expected Term \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant liability, measurement input \| year				4.8
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net asset value per share (in dollars per share) \| $ / shares	$ 1.00			$ 1.00