Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit) - Schedule of Redeemable Convertible Preferred Stock (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)	0		20,341,968
Redeemable convertible preferred stock, shares outstanding (in shares)	0	0	20,341,968	20,341,968	14,542,503	9,608,914
Amount	$ 0	$ 0	$ 204,537	$ 204,537	$ 127,485	$ 72,546
Aggregate Liquidation Preference	$ 0		$ 200,878
Series A preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)			956,575
Redeemable convertible preferred stock, shares outstanding (in shares)			956,575
Amount			$ 5,465
Aggregate Liquidation Preference			$ 6,032
Series B preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)			3,718,503
Redeemable convertible preferred stock, shares outstanding (in shares)			3,718,503
Amount			$ 27,321
Aggregate Liquidation Preference			$ 27,500
Series C-1 preferred stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares issued (in shares)			4,933,836
Redeemable convertible preferred stock, shares outstanding (in shares)			4,933,836
Amount			$ 39,760
Aggregate Liquidation Preference			$ 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