Redeemable Convertible Preferred Stock and Stockholders’ Deficit - Schedule of Redeemable Convertible Preferred Stock (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)	20,341,968	9,608,914
Redeemable convertible preferred stock, shares outstanding (in shares)	20,341,968	9,608,914	9,608,914
Amount	$ 204,537	$ 72,546	$ 72,546
Aggregate Liquidation Preference	$ 200,878	$ 73,542
Series A preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)	956,575	956,575
Redeemable convertible preferred stock, shares outstanding (in shares)	956,575	956,575
Amount	$ 5,465	$ 5,465
Aggregate Liquidation Preference	$ 6,032	$ 6,032
Series B preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)	3,718,503	3,718,503
Redeemable convertible preferred stock, shares outstanding (in shares)	3,718,503	3,718,503
Amount	$ 27,321	$ 27,321
Aggregate Liquidation Preference	$ 27,500	$ 27,500
Series C-1 preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)	4,933,836	4,933,836
Redeemable convertible preferred stock, shares outstanding (in shares)	4,933,836	4,933,836
Amount	$ 39,760	$ 39,760
Aggregate Liquidation Preference	$ 40,010	$ 40,010
Series C-2 preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)	4,933,589
Redeemable convertible preferred stock, shares outstanding (in shares)	4,933,589
Amount	$ 54,932
Aggregate Liquidation Preference	$ 50,010
Series D preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)	5,799,465
Redeemable convertible preferred stock, shares outstanding (in shares)	5,799,465
Amount	$ 77,059
Aggregate Liquidation Preference	$ 77,326

Class of Stock [Line Items]