INVESTMENT IN EQUITY SECURITIES (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2016	Dec. 31, 2017
Marketable Securities [Line Items]
Investment in equity securities	$ 0				$ 42,618,000				$ 0	$ 42,618,000
Equity	$ (82,556,000)				$ (21,357,000)				(82,556,000)	(21,357,000)	$ 296,668,000		$ 339,985,000
Proceeds received from sale of equity securities									$ 46,622,000	$ 7,994,000	0
Cumulative Effect, Period of Adoption, Adjustment
Marketable Securities [Line Items]
Equity													(10,448,000)
Altisource Residential Corporation
Marketable Securities [Line Items]
Number of available for sale shares acquired (in shares)												4,100,000
Number of securities outstanding (in shares)	0				3,500,000				0	3,500,000
Investment in equity securities	$ 0				$ 42,600,000				$ 0	$ 42,600,000	36,200,000
Unrealized gain (loss) on investment in equity securities	16,400,000	$ 100,000	$ (11,200,000)	$ (1,300,000)	2,700,000	$ (2,300,000)	$ 11,800,000	$ 2,200,000	4,000,000.0	14,400,000	(13,000,000.0)
Unrealized gain (loss) from sale									4,100,000	2,000,000.0	0
Investment income, dividend									$ 500,000	$ 1,700,000	2,500,000
Number of shares disposed (in shares)									3,500,000	700,000
Proceeds received from sale of equity securities									$ 46,600,000	$ 8,000,000.0
Accumulated other comprehensive income (loss)
Marketable Securities [Line Items]
Equity	0				0				0	0	0		733,000
Accumulated other comprehensive income (loss) | Cumulative Effect, Period of Adoption, Adjustment
Marketable Securities [Line Items]
Equity													(733,000)
Accumulated other comprehensive income (loss) | Accounting Standards Update 2016-01 | Cumulative Effect, Period of Adoption, Adjustment
Marketable Securities [Line Items]
Equity													(700,000)
Retained earnings
Marketable Securities [Line Items]
Equity	$ 190,383,000				$ 272,026,000				$ 190,383,000	$ 272,026,000	$ 590,655,000		626,600,000
Retained earnings | Cumulative Effect, Period of Adoption, Adjustment
Marketable Securities [Line Items]
Equity													(9,715,000)
Retained earnings | Accounting Standards Update 2016-01 | Cumulative Effect, Period of Adoption, Adjustment
Marketable Securities [Line Items]
Equity													$ 700,000