VACATION OWNERSHIP NOTES RECEIVABLE - Interest Income Associated With Vacation Ownership Notes Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 33,698	$ 30,356
Vacation ownership notes receivable — securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	25,371	23,346
Vacation ownership notes receivable — non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 8,327	$ 7,010