FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Altisource Residential Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of securities outstanding (in shares)	3.5	4.1
Discontinued Operations, Disposed of by Sale \| Rental Property Management Business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Future proceeds from the sale of business	$ 3.0

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