ORGANIZATION AND BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Jun. 30, 2020
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares)	415,520,780	415,520,780	415,744,518
Number of options (in shares)			14,428,655
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201613Member
Adjustment to retained earnings	$ 549,733	$ 549,733	$ (1,110,148)
Fortress-managed funds
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares)			2,400,000
Number of options (in shares)			10,900,000
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment to retained earnings	13,700	13,700
Increase attributable to the change in fair value of residential mortgage loans	19,700	19,700
Decrease attributable to the change in fair value of residential mortgage loans	$ 6,000	$ 6,000