OTHER INCOME (LOSS), GENERAL AND ADMINISTRATIVE, OTHER ASSETS AND LIABILITIES - Real Estate Owned (Details) $ in Thousands	9 Months Ended
Sep. 30, 2020 USD ($)
Real Estate Owned [Roll Forward]
Beginning balance	$ 93,672
Purchases	3,910
Transfer of loans to REO	31,764
Sales	(82,100)
Valuation (provision) reversal on REO	(2,626)
Ending balance	49,872
Early buy-out and reverse mortgage loans, foreclosure completed
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Claims receivable	16,500
Residential Mortgage
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Unpaid principal balance	$ 437,800

Mortgage Loans on Real Estate, Unpaid Balance

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Real Estate Owned, Acquisitions

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Real Estate Owned [Roll Forward]

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Real Estate Owned, Sales

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Real Estate Owned, Total Assets

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Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

+ References

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-Publisher FASB
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Amount of expense recognized in the income statement for a decrease in valuation of real estate owned (REO).

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Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

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