OTHER INCOME, ASSETS AND LIABILITIES - Schedule of Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Other income (loss), net
Unrealized gain (loss) on derivative instruments	$ 24,299	$ 3,560	$ 27,985	$ (124)
Unrealized gain (loss) on other ABS	7,197	189	12,001	340
Unrealized gain (loss) on residential mortgage loans, held-for-investment, at fair value	647	0	647	0
Unrealized gain (loss) on notes and bonds payable	900	0	900	0
Gain (loss) on transfer of loans to REO	6,119	5,179	16,609	16,791
Gain (loss) on transfer of loans to other assets	(1,528)	66	(1,648)	359
Gain (loss) on Excess MSRs	987	606	5,257	1,948
Gain (loss) on Ocwen common stock	(145)	6,987	4,655	6,987
Other income (loss)	(19,390)	(6,700)	(27,359)	(18,605)
Total other income (loss), net	$ 19,086	$ 9,887	$ 39,047	$ 7,696