Common Stock, Voting Rights Per Share

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- Definition

Number Of Trading Day Period Prior To The Applicable Determination Date

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- Definition

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

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Granted In Period Fair Value

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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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- Definition

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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No definition available.

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- Definition

Voting Restriction, Percent

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- Definition

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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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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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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 remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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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Number of additional shares authorized for issuance under share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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STOCKHOLDERS’ EQUITY AND EQUITY-BASED COMPENSATION - Narrative (Details)			3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 26, 2025 shares	Jul. 13, 2021 $ / shares shares	Jun. 30, 2025 USD ($) vote shares	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) plan tradingDay vote shares	Jun. 30, 2024 USD ($)	Dec. 31, 2024 shares	Dec. 31, 2023 shares	Sep. 20, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock, shares authorized (in shares)			1,525,000,000		1,525,000,000
Common stock authorized (in shares)			1,500,000,000		1,500,000,000		1,500,000,000
Preferred stock authorized (in shares)			25,000,000		25,000,000
Voting rights, non-citizen investors (as a percent)					1.00%
Number of equity-based compensation plans \| plan					9
Compensation expense (reversal) \| $			$ 8,295,000	$ 14,268,000	$ 20,956,000	$ 25,479,000
Treasury stock, at cost (in shares)			810,309		810,309		439,451
Repurchased common stock (in shares)					225,378
Repurchase of common stock \| $			$ 250,000		$ 300,000
Term Loan \| Credit Agreement \| Term Loan and Revolving Credit Facility
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Face amount \| $			390,000,000		$ 390,000,000				$ 350,000,000
WUP Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual term (in years)					6 years
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation \| $			2,300,000		$ 2,300,000
Unrecognized compensation cost recognition period (in years)					2 years
Executive Performance Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation \| $			127,900,000		$ 127,900,000
Unrecognized compensation cost recognition period (in years)					3 years 6 months
Number of trading day period prior to the applicable determination date \| tradingDay					60
Compensation expense (reversal) \| $			4,989,000	11,115,000	$ 14,516,000	$ 19,147,000
Earnout Share
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense (reversal) \| $			$ 0	$ 0
Nonvested awards (in shares)		900,000
Earnout Share \| Second share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)			3,000,000		3,000,000
Earnout Share \| Third share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)			3,000,000		3,000,000
Earnout Share \| First share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)			3,000,000		3,000,000
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
Compensation expense (reversal) \| $					$ 57,900,000
WUP Stock Option Plan \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)					4 years
Service period (in years)					4 years
Expiration period (in years)					10 years
Aggregate intrinsic value \| $			$ 0		$ 0
Weighted average remaining contractual term, exercisable (in years)					3 years 8 months 12 days
Weighted average remaining contractual term, outstanding (in years)					3 years 8 months 12 days
2021 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)			60,100,000		60,100,000
Common Stock available for awards (in shares)	30,000,000						25,000,000	2,415,000
2021 LTIP \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)					3 years
Service period (in years)					3 years
Aggregate intrinsic value \| $			$ 0		$ 0
Weighted average remaining contractual term, exercisable (in years)					2 years 4 months 24 days
Weighted average remaining contractual term, outstanding (in years)					2 years 4 months 24 days
2021 LTIP \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation \| $			$ 29,900,000		$ 29,900,000
Unrecognized compensation cost recognition period (in years)					2 years 9 months 18 days
Nonvested awards (in shares)			20,037,000		20,037,000		10,134,000
2021 LTIP \| RSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)					4 years
Service period (in years)					4 years
2021 LTIP \| PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)			1,877,000		1,877,000		387,000
CEO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Inducement grant plan (up to) (in shares)			73,000,000		73,000,000
CEO Performance Plan \| Executive Performance Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)					5 years 2 months 12 days
CEO Performance Plan \| Executive Performance Award \| 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%
CEO Performance Plan \| Executive Performance Award \| 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%
CEO Performance Plan \| Executive Performance Award \| 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%
CEO Performance Plan \| Executive Performance Award \| 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%
CFO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Inducement grant plan (up to) (in shares)			12,000,000		12,000,000
CFO Performance Plan \| Executive Performance Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value \| $			$ 9,700,000		$ 9,700,000
Expected term (in years)					3 years 9 months 18 days
Compensation expense (reversal) \| $					$ (4,100,000)
CFO Performance Plan \| Executive Performance Award \| 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%
CFO Performance Plan \| Executive Performance Award \| 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%
CFO Performance Plan \| Executive Performance Award \| 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%
CCO Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Inducement grant plan (up to) (in shares)			15,000,000		15,000,000
CCO Performance Plan \| Executive Performance Award
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			0.50		0.50
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)			1,500,000,000		1,500,000,000
Voting rights per share \| vote			1		1
Common Class A \| Earnout Share \| Second share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) \| $ / shares		$ 150.00
Common Class A \| Earnout Share \| Third share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) \| $ / shares		175.00
Common Class A \| Earnout Share \| First share price vesting threshold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) \| $ / shares		$ 125.00
Common Class A \| WUP Stock Option Plan \| Stock options
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 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