BUSINESS SEGMENTS - Additional Information (Details)	3 Months Ended
Mar. 31, 2020 brand Segment	Mar. 31, 2019
Segment Reporting Information [Line Items]
Number of reportable business segments \| Segment	2
Vacation Ownership
Segment Reporting Information [Line Items]
Number of vacation ownership brands \| brand	7
Geographic Concentration Risk \| Sales Revenue, Net \| Non-US
Segment Reporting Information [Line Items]
Concentration risk, percentage	12.00%	14.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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