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Redeemable Common Stock, Common Stock, and Stockholders' Equity (Deficit) - Narrative (Details) $ / shares in Units, $ in Thousands |  |  |  | 12 Months Ended | 36 Months Ended |
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Oct. 19, 2023 USD ($) shares | Sep. 22, 2023 USD ($) $ / shares shares | Jul. 28, 2022 $ / shares shares | Dec. 31, 2025 USD ($) vote $ / shares shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2019 shares | Dec. 31, 2021 $ / shares shares | Sep. 30, 2023 shares
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Underwriting discounts and commissions | $ |  | $ 17,700 |  |  |  |  |  |  |  |
Payments of stock issuance costs | $ |  | $ 7,400 |  |  |  | $ 25,135 |  |  |  |
Redeemable common stock issued (in shares) |  |  |  |  |  |  |  |  | 64,046,223 |
Proceeds from issuance of common stock, net of issuance costs | $ |  |  |  | $ 0 | $ 0 | $ 0 |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  | 100,000,000 | 100,000,000 |  |  |  |  | 100,000,000
Automatic conversion of outstanding common stock, period |  |  |  | 7 years |  |  |  |  |  |
Preferred stock, par value (in dollars per share) | $ / shares |  |  |  | $ 0.001 | $ 0.001 |  |  |  |  |
Preferred stock, shares issued (in shares) |  |  |  | 0 | 0 |  |  |  |  |
Preferred stock, shares outstanding (in shares) |  |  |  | 0 | 0 |  |  |  |  |
Warrants, exercise price (in dollars per share) | $ / shares |  |  |  | $ 0.01 | $ 0.01 |  |  |  |  |
Warrants vested (in shares) |  |  |  | 1,377,528 | 1,377,528 | 6,051,285 |  |  |  |
Restricted common stock, issued (in shares) |  |  |  |  |  |  |  | 142,908 |  |
Restricted Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate fair value of restricted common stock vested | $ |  |  |  |  |  | $ 700 |  |  |  |
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion of common stock (in shares) |  | 3,935,793 |  |  |  |  |  |  |  |
Shopify | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum number of common stock shares in which warrants may be converted (in shares) |  |  | 15,743,174 |  |  |  |  |  |  |
Warrants, exercise price (in dollars per share) | $ / shares |  |  | $ 0.01 |  |  |  |  |  |  |
Term of warrants (in years) |  |  | 10 years |  |  |  |  |  |  |
Shopify | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Dividend yield |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  |  | 0 |  |  |  |  |  |
Shopify | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Contractual term |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  |  | 10 |  |  |  |  |  |
Shopify | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Volatility |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  |  | 0.5500 |  |  |  |  |  |
Shopify | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Risk-free rate |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  |  | 0.0285 |  |  |  |  |  |
Shopify | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Class of Warrant or Right, Vesting Period One |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants, vesting percentage |  | 0.25 | 0.25 |  |  |  |  |  |  |
Shopify | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Class of Warrant or Right, Vesting Periods Two Through Twenty-One |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants, vesting percentage |  |  | 0.75 |  |  |  |  |  |  |
Series A Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  | 3,000,000,000 | 3,000,000,000 |  |  |  |  | 3,000,000,000
Number of votes per common share | vote |  |  |  | 1 |  |  |  |  |  |
Series A Common Stock | Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock, net of issuance costs (in shares) |  |  |  |  |  | 11,507,693 |  |  |  |
Series B Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  | 350,000,000 | 350,000,000 |  |  |  |  | 350,000,000
Number of votes per common share | vote |  |  |  | 10 |  |  |  |  |  |
Number of shares convertible (in shares) |  |  |  | 1 |  |  |  |  |  |
Conversion of Common Stock Upon Initial Public Offering | Series A Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion of common stock (in shares) |  | 64,046,223 |  |  |  |  |  |  |  |
Conversion of Common Stock Upon Initial Public Offering | Series A Common Stock | Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion of common stock (in shares) |  | 21,233,074 |  |  |  |  |  |  |  |
Conversion of Redeemable Common Stock Into Series B Common Stock | Series A Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion of common stock (in shares) |  | 64,046,223 |  |  |  |  |  |  |  |
Conversion of Redeemable Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion of common stock | $ |  |  |  | $ 1,900,000 |  |  |  |  |  |
Reclassification of redeemable common stock to Series B common stock | $ |  |  |  | 1,800,000 |  | $ 1,931,538 |  |  |  |
Conversion of Redeemable Common Stock | Additional Paid-In Capital |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion of common stock | $ |  |  |  | $ 136,900 |  |  |  |  |  |
Reclassification of redeemable common stock to Series B common stock | $ |  |  |  |  |  | $ 136,865 |  |  |  |
Conversion of Redeemable Common Stock | Series B Common Stock | Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Conversion of common stock (in shares) |  |  |  |  |  | 64,046,223 |  |  |  |
Reclassification of redeemable common stock to Series B common stock | $ |  |  |  |  |  | $ 64 |  |  |  |
IPO |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued under purchase agreement (in shares) |  | 19,200,000 |  |  |  |  |  |  |  |
Issuance price per share (in dollars per share) | $ / shares |  | $ 30.00 |  |  |  |  |  |  |  |
Aggregate proceeds, net of discounts and commissions | $ |  | $ 320,100 |  |  |  |  |  |  |  |
IPO and Over-Allotment Option |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued under purchase agreement (in shares) |  | 11,507,693 |  |  |  |  |  |  |  |
IPO and Over-Allotment Option - Shares From Existing Shareholders |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued under purchase agreement (in shares) |  | 7,692,307 |  |  |  |  |  |  |  |
Over-Allotment Option |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued under purchase agreement (in shares) | 2,764,066 |  |  |  |  |  |  |  |  |
Shares available for purchase (in shares) | 2,880,000 |  |  |  |  |  |  |  |  |
Proceeds from sale of stock | $ | $ 0 |  |  |  |  |  |  |  |  |
Public Stock Offering |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued under purchase agreement (in shares) |  |  |  |  |  |  | 10,365,017 |  |  |
Issuance price per share (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 33.38 |  | $ 33.38 |
Redeemable common stock issued (in shares) |  |  |  |  |  |  | 3,025,625 |  |  |
Proceeds from issuance of common stock, net of issuance costs | $ |  |  |  |  |  |  | $ 346,000 |  |  |
Public Stock Offering | Series B Common Stock |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock, net of issuance costs (in shares) |  |  |  |  |  |  | 7,339,392 |  |  |
Private Placement | Shopify |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Shares issued under purchase agreement (in shares) |  |  | 2,951,846 |  |  |  |  |  |  |
Issuance price per share (in dollars per share) | $ / shares |  |  | $ 33.88 |  |  |  |  |  |  |
Investment Option | Shopify |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance price per share (in dollars per share) | $ / shares |  |  | $ 88.93 |  |  |  |  |  |  |
Additional shares available for purchase (in shares) |  |  | 15,743,174 |  |  |  |  |  |  |

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