REAL ESTATE AND OTHER SECURITIES (AS RESTATED) - Schedule of Activity Related to the Allowance for Credit Losses on RMBS Designated as AFS (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses on available-for-sale debt securities at the beginning	$ 10,152
Additions to the allowance for credit losses on securities for which credit losses were not previously recognized	21
Additions to the allowance for credit losses arising from purchases of AFS debt securities accounted for as purchased financial assets with credit deterioration	0
Reductions for securities sold during the period	0
Reductions in the allowance for credit losses for securities intended to be sold or are more likely than not required to be sold before recovery of its amortized cost basis	0
Additional increases (decreases) to the allowance for credit losses on securities with credit losses, or an allowance recognized in a previous period	511
Write-offs charged against the allowance	0
Recoveries of amounts previously written off	0
Allowance for credit losses on available-for-sale debt securities at the end	10,684
Purchased Credit Deteriorated
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses on available-for-sale debt securities at the beginning	1,183
Additions to the allowance for credit losses on securities for which credit losses were not previously recognized	21
Additions to the allowance for credit losses arising from purchases of AFS debt securities accounted for as purchased financial assets with credit deterioration	0
Reductions for securities sold during the period	0
Reductions in the allowance for credit losses for securities intended to be sold or are more likely than not required to be sold before recovery of its amortized cost basis	0
Additional increases (decreases) to the allowance for credit losses on securities with credit losses, or an allowance recognized in a previous period	595
Write-offs charged against the allowance	0
Recoveries of amounts previously written off	0
Allowance for credit losses on available-for-sale debt securities at the end	1,799
Non-Purchased Credit Deteriorated
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses on available-for-sale debt securities at the beginning	8,969
Additions to the allowance for credit losses on securities for which credit losses were not previously recognized	0
Additions to the allowance for credit losses arising from purchases of AFS debt securities accounted for as purchased financial assets with credit deterioration	0
Reductions for securities sold during the period	0
Reductions in the allowance for credit losses for securities intended to be sold or are more likely than not required to be sold before recovery of its amortized cost basis	0
Additional increases (decreases) to the allowance for credit losses on securities with credit losses, or an allowance recognized in a previous period	(84)
Write-offs charged against the allowance	0
Recoveries of amounts previously written off	0
Allowance for credit losses on available-for-sale debt securities at the end	$ 8,885