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://www.xbrl.org/2003/role/disclosureRef
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BUSINESS SEGMENTS - Additional Information (Details)	3 Months Ended		9 Months Ended
BUSINESS SEGMENTS - Additional Information (Details)	Sep. 30, 2020 brand	Sep. 30, 2019	Sep. 30, 2020 brand Segment	Sep. 30, 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		7
Geographic concentration risk \| Sales revenue, net \| Non-US
Segment Reporting Information [Line Items]
Concentration risk, percentage	8.00%	12.00%	10.00%	11.00%