REVENUE - Narrative (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) Line	Dec. 31, 2017 USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Number of primary sources of revenues generated (line) | Line	4
Contract with customer, performance obligation satisfied in previous period	$ 1,700,000
Vacation ownership products, sales incentives, period	2 years
Vacation ownership product, financing term	10 years
Contract with customer, contract assets	$ 0	$ 0
Contract with customer, liability, revenue recognized	$ 47,100,000
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Number of days for payments to commence under financing contracts after closing	30 days
Rental expiration period	6 months
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Number of days for payments to commence under financing contracts after closing	60 days
Rental expiration period	24 months