Deemed dividend on redemption of noncontrolling interest.

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- Definition

Retention pool aggregate amount.

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Retention pool amount available for issuance to future employees.

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Retention pool amount granted to employees

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Topic 718
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-Name Accounting Standards Codification
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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No definition available.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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2023 CarOffer Transaction - Additional Information (Details) - USD ($)		12 Months Ended
	Jan. 14, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Asset Acquisition, Contingent Consideration [Line Items]
Stock consideration				$ 103,645,000
Stock-based compensation expense		$ 113,456,000	$ 33,682,000	77,710,000
Redeemable noncontrolling interest		0	36,749,000	162,808,000	$ 0
Deemed dividend on redemption of noncontrolling interest		5,838,000
General and Administrative Expense
Asset Acquisition, Contingent Consideration [Line Items]
Stock-based compensation expense		71,442,000	5,208,000	$ 42,203,000
CarOffer
Asset Acquisition, Contingent Consideration [Line Items]
Business acquisition, percentage of equity interest acquired	51.00%			51.00%
Business acquisition, aggregate consideration	$ 173,155,000
Cash consideration	69,510,000
Retention pool aggregate amount	8,000,000
Retention pool amount granted to employees	6,000,000
Retention pool amount available for issuance to future employees	$ 2,000,000
CarOffer \| 2021 Purchase Agreement
Asset Acquisition, Contingent Consideration [Line Items]
Business acquisition, percentage of equity interest acquired	51.00%
Business acquisition, aggregate consideration	$ 173,155,000
Cash consideration	69,510,000
Retention pool aggregate amount	8,000,000
Retention pool amount granted to employees	6,000,000
Retention pool amount available for issuance to future employees	2,000,000
Acquisition-related costs incurred		0	$ 0	$ 2,647,000
CarOffer \| 2023 Purchase Agreement
Asset Acquisition, Contingent Consideration [Line Items]
Cash consideration		75,000
Acquisition-related costs incurred		1,044,000
Stock-based compensation expense		50,000,000
Gain on business transaction		$ 0
CarOffer \| General and Administrative Expense \| 2021 Purchase Agreement
Asset Acquisition, Contingent Consideration [Line Items]
Acquisition-related costs incurred				$ 709,000
CarOffer \| Class A Common Stock
Asset Acquisition, Contingent Consideration [Line Items]
Stock consideration	$ 103,645,000
Business acquisition, stock consideration shares issued	3,115,282
Business acquisition, share price	$ 22.51
CarOffer \| Class A Common Stock \| 2021 Purchase Agreement
Asset Acquisition, Contingent Consideration [Line Items]
Stock consideration	$ 103,645,000
Business acquisition, stock consideration shares issued	3,115,282
Business acquisition, share price	$ 22.51