Percentage of related party voting interests.

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Summary of significant accounting policies.

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Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Indicates title and position of individual or name of group identified as chief operating decision maker (CODM) for segment reporting.

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Amount of noncash expense for share-based payment arrangement.

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Estimated period when employee is required to provide service in exchange for share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) Segment	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Percentage of related party voting interest	27.30%		27.30%		26.20%
Restricted cash	$ 13,674,000	$ 15,200,000	$ 13,674,000	$ 15,200,000	$ 13,700,000
Write-off of property and equipment	2,700,000	9,500,000	$ 4,607,000	24,410,000
Number of operating segment \| Segment			1
Number of reportable segment \| Segment			1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]			srt:ChiefExecutiveOfficerMember
Stock-based compensation expense	16,300,000	29,200,000	$ 74,147,000	96,117,000
Depreciation and amortization	12,700,000	14,200,000	40,802,000	51,974,000
Personnel costs	33,400,000	33,400,000	$ 104,600,000	106,000,000
Requisite service period			3 years
Current income tax expense (benefit)	0	0	$ 0	0
Deferred income tax expense (benefit)	0	$ 0	0	$ 0
US Government Money Market Fund and Marketable Securities
Summary Of Significant Accounting Policies [Line Items]
Investment securities	40,300,000		40,300,000		117,800,000
U.S. Government and Agency Securities
Summary Of Significant Accounting Policies [Line Items]
Investment securities	556,000,000		$ 556,000,000		$ 590,800,000
Options
Summary Of Significant Accounting Policies [Line Items]
Stock-based compensation expense	$ 0
Restricted Stock Unit \| Maximum
Summary Of Significant Accounting Policies [Line Items]
Vesting period			4 years