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v3.26.1

Capital Structure - Summary of Issued and Outstanding Redeemable Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025 | Feb. 28, 2025
--- | --- | --- | ---
Class of Stock [Line Items] |  |  |
Shares Authorized | 0 | 262,597,889 |
Shares issued | 0 | 222,658,133 |
Shares Outstanding | 0 | 222,658,133 |
Original issue price | $ 0.0001 | $ 0.0001 |
Aggregate Liquidation Amount |  | $ 1,159,762 |
Carrying Value | $ 0 | $ 1,161,470 |
Series A |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized |  | 48,000,000 |
Shares issued |  | 48,000,000 |
Shares Outstanding |  | 48,000,000 |
Original issue price |  | $ 1 |
Aggregate Liquidation Amount |  | $ 48,000 |
Carrying Value |  | $ 47,916 |
Series A-1 |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized |  | 51,268,891 |
Shares issued |  | 51,268,891 |
Shares Outstanding |  | 51,268,891 |
Original issue price |  | $ 2 |
Aggregate Liquidation Amount |  | $ 102,538 |
Carrying Value |  | $ 102,472 |
Series B |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized |  | 29,271,143 |
Shares issued |  | 17,456,768 |
Shares Outstanding |  | 17,456,768 |
Original issue price |  | $ 17.69 |
Aggregate Liquidation Amount |  | $ 308,786 |
Carrying Value |  | $ 297,294 |
Series B-1 |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized |  | 35,756,908 |
Shares issued |  | 35,756,908 | 35,756,908
Shares Outstanding |  | 35,756,908 |
Original issue price |  | $ 5.84 |
Aggregate Liquidation Amount |  | $ 208,979 |
Carrying Value |  | $ 224,200 |
Series C |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized |  | 24,884,830 |
Shares issued |  | 5,194,787 |
Shares Outstanding |  | 5,194,787 |
Original issue price |  | $ 21.5 |
Aggregate Liquidation Amount |  | $ 111,682 |
Carrying Value |  | $ 108,629 |
Series C-1 |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized |  | 4,975,110 |
Shares issued |  | 4,975,110 | 4,975,110
Shares Outstanding |  | 4,975,110 |
Original issue price |  | $ 5.84 |
Aggregate Liquidation Amount |  | $ 29,077 |
Carrying Value |  | $ 30,806 |
Series D |  |  |
Class of Stock [Line Items] |  |  |
Shares Authorized |  | 68,441,007 |
Shares issued |  | 60,005,669 | 60,005,669
Shares Outstanding |  | 60,005,669 |
Original issue price |  | $ 5.84 | $ 5.84
Aggregate Liquidation Amount |  | $ 350,700 |
Carrying Value |  | $ 350,153 |

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