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Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, shares in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2023 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) segment reporting_unit shares | Dec. 31, 2022 USD ($) reporting_unit $ / shares | Dec. 31, 2021 USD ($)
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |
Cash and cash equivalents |  |  | $ 568,505,000 | $ 1,336,883,000 | $ 1,515,116,000
Net income (loss) |  |  | (545,062,000) | (657,939,000) | (1,743,751,000)
Net cash provided by (used in) operating activities |  |  | $ (713,967,000) | (415,937,000) | 322,946,000
Restructuring and related cost, annual impact percent |  |  | 85.00% |  |
Severance and employee benefit costs |  |  | $ 4,503,000 |  |
Impairment of assets |  |  | 10,081,000 | 0 | 0
Advertising costs |  |  | $ 91,500,000 | $ 84,000,000 | 8,900,000
Number of reporting units | reporting_unit |  |  | 1 | 1 |
Impairment to goodwill |  |  | $ 0 | $ 0 |
Foreign currency translation adjustment |  |  | 2,700,000 | (6,400,000) |
Foreign currency transaction (losses) gain |  |  | $ 7,900,000 | $ (2,500,000) | $ (5,300,000)
Number of operating segments | segment |  |  | 1 |  |
Canada Advance Purchase Agreement |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |
Installment charges | $ 174,800,000 |  | $ 174,800,000 |  |
5.00% Convertible notes due 2027 | Unsecured Debt |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |
Number of shares issued for debt converted (in shares) | shares |  |  | 14 |  |
Debt instrument, convertible, conversion price (in usd per share) | $ / shares |  |  |  | $ 12.50 |
Minimum |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |
Requisite service period |  |  | 1 year |  |
Minimum | Forecast |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |
Severance and employee benefit costs |  | $ 4,000,000 |  |  |
Maximum |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |
Requisite service period |  |  | 4 years |  |
Maximum | Forecast |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |
Severance and employee benefit costs |  | $ 7,000,000 |  |  |

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