Common Stock, Voting Rights Per Share

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Number Of Trading Day Period Prior To The Applicable Determination Date

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Sale of Stock, Consideration Received on Transaction, Gross

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Sale of Stock, Shares Issued in Transaction, Maximum

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Share-Based Compensation Arrangement by Share-Based Payment Award, Award Forfeited, Percentage

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Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Nonvested, Stock Price Milestone

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Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Plans

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Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exchange Ratio

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Share-Based Compensation Arrangement By Share-Based Payment Award, Threshold Consecutive Trading Days

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Share-Based Compensation Arrangement By Share-Based Payment Award, Threshold Trading Days

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- Definition

Stock, Shares Authorized

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Voting Restriction, Percent

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Voting Rights, Non-Citizen Investors

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

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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Aggregate number of common shares reserved for future issuance.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under 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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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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The cash inflow from the additional capital contribution to the entity.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Weighted-average contractual term remaining for equity-based award excluding option, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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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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STOCKHOLDERS’ EQUITY AND EQUITY-BASED COMPENSATION - Narrative (Details)				1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 13, 2026 $ / shares shares	Aug. 29, 2025 USD ($)	Jul. 13, 2021 $ / shares shares	Jun. 30, 2025	Sep. 30, 2026 USD ($) vote shares	Sep. 30, 2025 USD ($) shares	Sep. 30, 2026 USD ($) trading_day plan vote shares	Sep. 30, 2025 USD ($) shares	Apr. 24, 2026 shares	Apr. 12, 2026 shares	Dec. 31, 2025 shares	Nov. 15, 2023 USD ($)	Sep. 20, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares (in shares)									100,000,000
Common stock authorized (in shares)	75,000,000.0				75,000,000		75,000,000			1,500,000,000	75,000,000
Preferred stock authorized (in shares)									25,000,000
Voting rights, non-citizen investors (as a percent)							1.00%
Warrant exercise price (in dollars per share) \| $ / shares	$ 2,300		$ 2,300
Proceeds from sales of shares of common stock \| $							$ 0	$ 47,597,000
Capacity to issue (in shares)					600,000		600,000
Number of equity-based compensation plans \| plan							9
Total equity-based compensation expense \| $					$ 12,276,000	$ 12,499,000	$ 36,207,000	33,455,000
Treasury stock, at cost (in shares)					107,695		107,695				78,616
Reverse stock split ratio	0.05
Warrant right to purchase shares (in shares)	0.005		0.005
Term Loans \| Credit Agreement \| Term Loan and Revolving Credit Facility
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuances \| $					$ 390,000,000.0		$ 390,000,000.0					$ 390,000,000.0	$ 350,000,000.0
2021 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)					6,800,000		6,800,000
CEO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Inducement grant plan (up to) (in shares)					3,700,000		3,700,000
CFO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Inducement grant plan (up to) (in shares)					600,000		600,000
CCO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Inducement grant plan (up to) (in shares)					800,000		800,000
WUP Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual term (in years)							4 years 9 months 18 days
Stock options \| WUP Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period (in years)							4 years
Vesting period (in years)							4 years
Expiration period (in years)							10 years
Aggregate intrinsic value \| $					$ 0		$ 0
Weighted average remaining contractual term, exercisable (in years)							2 years 6 months
Stock options \| 2021 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period (in years)							3 years
Vesting period (in years)							3 years
Aggregate intrinsic value \| $					0		$ 0
Weighted average remaining contractual term, outstanding (in years)							1 year 1 month 6 days
RSUs \| 2021 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation \| $					$ 21,900,000		$ 21,900,000
Unrecognized compensation cost recognition period (in years)							2 years 6 months
Nonvested awards (in shares)					1,399,000		1,399,000				812,000
RSUs \| 2021 LTIP \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period (in years)							4 years
Vesting period (in years)							4 years
PSUs \| 2021 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation \| $					$ 1,600,000		$ 1,600,000
Unrecognized compensation cost recognition period (in years)							1 year 8 months 12 days
Nonvested awards (in shares)					176,000		176,000				85,000
Compensation expense for the Executive Performance Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation \| $					$ 82,200,000		$ 82,200,000
Unrecognized compensation cost recognition period (in years)							2 years 3 months 18 days
Number of trading day period prior to the applicable determination date \| trading_day							60
Total equity-based compensation expense \| $					9,193,000	9,192,000	$ 27,279,000	23,708,000
Compensation expense for the Executive Performance Plans \| CEO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)							5 years 2 months 12 days
Compensation expense for the Executive Performance Plans \| CEO Performance Plan \| First share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							25.00%
Compensation expense for the Executive Performance Plans \| CEO Performance Plan \| Second share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							25.00%
Compensation expense for the Executive Performance Plans \| CEO Performance Plan \| Third share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							25.00%
Compensation expense for the Executive Performance Plans \| CEO Performance Plan \| Fourth share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							25.00%
Compensation expense for the Executive Performance Plans \| CFO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)							3 years 9 months 18 days
Compensation expense for the Executive Performance Plans \| CFO Performance Plan \| First share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							33.333%
Compensation expense for the Executive Performance Plans \| CFO Performance Plan \| Second share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							33.333%
Compensation expense for the Executive Performance Plans \| CFO Performance Plan \| Third share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							33.333%
Compensation expense for the Executive Performance Plans \| CCO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage (as a percent)							50.00%
Expected term (in years)							4 years 8 months 12 days
Forfeited (as a percent)				0.50
Former Earnout Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)			45,000
Total equity-based compensation expense \| $					$ 0	$ 0	$ 0	$ 0
Former Earnout Shares \| First share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)					15,000		15,000
Former Earnout Shares \| Second share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)					15,000		15,000
Former Earnout Shares \| Third share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)					15,000		15,000
Profit Interest Based Award and Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual term (in years)							1 year 8 months 12 days
Total equity-based compensation expense \| $							$ 57,900,000
CK Wheels
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Voting restrictions (as a percent)					23.90%		23.90%
Delta
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Voting restrictions (as a percent)					29.90%		29.90%
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized (in shares)									75,000,000
Voting rights per share \| vote					1		1
Common Stock \| ATM Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate sales price \| $		$ 50,000,000.0
Common stock issued (in shares)					0	1,057,876	0	1,057,876
Aggregate gross proceeds \| $						$ 49,400,000		$ 49,400,000
Common Class A \| Stock options \| WUP Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock exercisable for each outstanding stock option (in shares)					1		1
Common Class A \| Former Earnout Shares \| First share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) \| $ / shares			$ 2,500
Common Class A \| Former Earnout Shares \| Second share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) \| $ / shares			3,000
Common Class A \| Former Earnout Shares \| Third share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) \| $ / shares			$ 3,500
Common Class B \| First share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum threshold days (in days)			20 days
Number of consecutive trading days (in days)			30 days