Convertible Preferred Stock, Common Stock and Warrants (Details) $ / shares in Units, $ in Thousands	Jul. 20, 2026 shares	Jul. 19, 2026 USD ($) $ / shares shares	Sep. 30, 2026 USD ($) vote $ / shares shares	Jul. 13, 2026 $ / shares shares	Jun. 30, 2026 USD ($) shares	Mar. 31, 2026 USD ($) shares	Dec. 31, 2025 USD ($) $ / shares shares	Sep. 30, 2025 USD ($) shares	Jun. 30, 2025 USD ($) shares	Mar. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($) shares
Temporary Equity [Line Items]
Redeemable convertible preferred stock, issued (in shares)		212,541,832	0
Redeemable convertible preferred stock, outstanding (in shares)		212,541,832	0		0	0	0	0	0	0	0
Stock converted, recapitalization (in shares)	60,513,413	213,907,881
Shares issued upon redeemable conversion of convertible preferred stock (in shares)			1
Carrying amount of redeemable convertible preferred stock | $		$ 1,400,000	$ 0		$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Common stock, authorized (in shares)			1,000,000,000				1,000,000,000
Redeemable convertible preferred stock, authorized (in shares)			10,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.0001				$ 0.0001
Redeemable convertible preferred stock, par value (in dollars per share) | $ / shares			$ 0.0001
Votes per share | vote			1
Warrants outstanding (in shares)		428,560	14,003
Warrant exercise price (in dollars per share) | $ / shares		$ 0.01	$ 4.85	$ 0.01
Number of securities called by warrants (in shares)		121,237		121,237
Series D Preferred
Temporary Equity [Line Items]
Shares issued upon redeemable conversion of convertible preferred stock (in shares)			1.00252
Series E Preferred
Temporary Equity [Line Items]
Shares issued upon redeemable conversion of convertible preferred stock (in shares)			1.05075