Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS - Narrative (Details)

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INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 11, 2015
May. 11, 2015
May. 05, 2015
Apr. 16, 2015
Jan. 16, 2015
Jun. 30, 2015
Jun. 30, 2015
Excess MSRs Investees [Member]              
Investment [Line Items]              
Unpaid Principal Balance (“UPB”) of Underlying Mortgages           $ 79,731,703 $ 79,731,703
Excess MSRs Investees [Member] | MSRs [Member]              
Investment [Line Items]              
Weighted average discount rate, used to value investments in excess MSRs           9.80% 9.80%
Excess MSRs [Member]              
Investment [Line Items]              
Purchase of servicer advance investments $ 72,400 $ 26,900 $ 3,500 $ 2,600 $ 23,800    
Unpaid Principal Balance (“UPB”) of Underlying Mortgages $ 18,500,000 $ 8,900,000 $ 1,600,000   $ 8,400,000    
Excess MSRs [Member] | Freddie Mac [Member]              
Investment [Line Items]              
Percentage of Excess MSRs acquired   33.30%     33.30%    
Excess MSRs [Member] | Freddie Mac [Member] | Nationstar [Member]              
Investment [Line Items]              
Percentage of Excess MSRs acquired   33.30%     33.30%    
Excess MSRs [Member] | Fannie Mae [Member]              
Investment [Line Items]              
Percentage of Excess MSRs acquired     33.30%        
Excess MSRs [Member] | Fannie Mae [Member] | Nationstar [Member]              
Investment [Line Items]              
Percentage of Excess MSRs acquired     33.30%        
Excess MSRs [Member] | Ginnie Mae [Member]              
Investment [Line Items]              
Percentage of Excess MSRs acquired 40.00%            
Excess MSRs [Member] | Ginnie Mae [Member] | Nationstar [Member]              
Investment [Line Items]              
Percentage of Excess MSRs acquired 20.00%