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SECURITIZED DEBT - Additional Information (Details)	3 Months Ended		6 Months Ended	9 Months Ended	12 Months Ended
SECURITIZED DEBT - Additional Information (Details)	Sep. 30, 2024 USD ($) class	Mar. 31, 2024 USD ($) class	Jun. 30, 2024	Dec. 31, 2024 USD ($) loan	Dec. 31, 2024 USD ($) loan
Debt Instrument [Line Items]
Number of notes receivable pools outstanding \| loan				12	12
Number of notes receivable pools under performance triggers \| loan					0
Number of notes receivable pools out of compliance \| loan				0	0
Values of vacation ownership notes receivable that were securitized during the period	$ 454,000,000	$ 439,000,000
MVW 2024-1 LLC
Debt Instrument [Line Items]
Vacation ownership notes, number of classes \| class		3
MVW 2024-1 LLC \| Securitized debt
Debt Instrument [Line Items]
Principal amount		$ 430,000,000
Debt, weighted average interest rate		5.48%
MVW 2024-1 LLC \| Class A Notes \| Securitized debt
Debt Instrument [Line Items]
Principal amount		$ 284,000,000
Debt, stated interest rate		5.32%
MVW 2024-1 LLC \| Class B Notes \| Securitized debt
Debt Instrument [Line Items]
Principal amount		$ 89,000,000
Debt, stated interest rate		5.51%
MVW 2024-1 LLC \| Class C Notes \| Securitized debt
Debt Instrument [Line Items]
Principal amount		$ 57,000,000
Debt, stated interest rate		6.20%
MVW 2024-2 LLC
Debt Instrument [Line Items]
Vacation ownership notes, number of classes \| class	3
MVW 2024-2 LLC \| Securitized debt
Debt Instrument [Line Items]
Principal amount	$ 445,000,000
Debt, weighted average interest rate	4.52%
MVW 2024-2 LLC \| Class A Notes \| Securitized debt
Debt Instrument [Line Items]
Principal amount	$ 307,000,000
Debt, stated interest rate	4.43%
MVW 2024-2 LLC \| Class B Notes \| Securitized debt
Debt Instrument [Line Items]
Principal amount	$ 86,000,000
Debt, stated interest rate	4.58%
MVW 2024-2 LLC \| Class C Notes \| Securitized debt
Debt Instrument [Line Items]
Principal amount	$ 52,000,000
Debt, stated interest rate	4.92%
Line of Credit
Debt Instrument [Line Items]
Credit facility, payable period after termination					13 months
Line of Credit \| Warehouse Credit Facility
Debt Instrument [Line Items]
Credit facility				$ 500,000,000	$ 500,000,000
Basis spread on variable rate			0.10%
Line of Credit \| Warehouse Credit Facility \| Adjusted SOFR
Debt Instrument [Line Items]
Basis spread on variable rate			1.35%
Line of Credit \| Warehouse Credit Facility \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.15%