Annual report pursuant to Section 13 and 15(d)

REAL ESTATE RELATED AND OTHER LOANS, RESIDENTIAL MORTGAGE LOANS AND SUBPRIME MORTGAGE LOANS - Activity in Carrying Value (Details)

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REAL ESTATE RELATED AND OTHER LOANS, RESIDENTIAL MORTGAGE LOANS AND SUBPRIME MORTGAGE LOANS - Activity in Carrying Value (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Loans and Leases Receivable [Roll Forward]      
Valuation (allowance) reversal on loans $ (4,039) $ (9,541) $ 2,419
Real Estate Related and other Loans      
Loans and Leases Receivable [Roll Forward]      
Carrying Value 55,612    
Residential Loans | Residential mortgage loans      
Loans and Leases Receivable [Roll Forward]      
Carrying value 0 0 255,450
Purchases / additional fundings 0 0 0
Interest accrued to principal balance 0 0 0
Principal pay downs 0 0 (9,436)
Sales 0 0 0
Transfer to held-for-sale     (246,121)
Valuation (allowance) reversal on loans 0 0 (833)
Accretion of loan discount and other amortization 0 0 115
Loss on settlement of loans 0    
Other   0 825
Carrying Value 0 0 0
Held-for-sale | Real Estate Related and other Loans      
Loans and Leases Receivable [Roll Forward]      
Carrying value 149,198 230,200 437,530
Purchases / additional fundings 0 0 0
Interest accrued to principal balance 29,025 27,717 20,830
Principal pay downs (109,892) (46,696) (240,937)
Sales (19,433) (55,574) 0
Transfer to held-for-sale     0
Valuation (allowance) reversal on loans (3,826) (9,284) 3,303
Accretion of loan discount and other amortization 10,540 3,203 8,867
Loss on settlement of loans 0    
Other   (368) 607
Carrying Value 55,612 149,198 230,200
Held-for-sale | Residential Loans      
Loans and Leases Receivable [Roll Forward]      
Carrying value 532    
Carrying Value 231 532  
Held-for-sale | Residential Loans | Residential mortgage loans      
Loans and Leases Receivable [Roll Forward]      
Carrying value 532 3,854 2,185
Purchases / additional fundings 0 0 0
Interest accrued to principal balance 0 0 0
Principal pay downs (40) (134) (9,574)
Sales 0 (2,925) (233,349)
Transfer to held-for-sale     246,121
Valuation (allowance) reversal on loans (213) (257) (51)
Accretion of loan discount and other amortization 0 0 0
Loss on settlement of loans (48)    
Other   (6) (1,478)
Carrying Value $ 231 $ 532 $ 3,854