Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS IN SERVICER ADVANCES - Summary of Investments in Servicer Advances (Details)

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INVESTMENTS IN SERVICER ADVANCES - Summary of Investments in Servicer Advances (Details) - Servicer Advance Joint Venture [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Investments in and Advances to Affiliates [Line Items]          
Amortized Cost Basis $ 4,758,268   $ 4,758,268   $ 5,687,635
Carrying Value $ 4,836,754   $ 4,836,754   $ 5,706,593
Weighted Average Discount Rate 6.50%   6.50%   5.60%
Weighted Average Yield 6.80%   6.80%   5.50%
Weighted Average Life (Years)     5 years 21 days   4 years 7 months 1 day
Asset-backed securities, face amount, collateralized by servicer advances $ 100,000   $ 100,000   $ 100,000
Asset-backed securities, carrying value, collateralized by servicer advances 100,000   100,000   $ 100,100
Changes in Fair Value Recorded in Other Income $ 56,969 $ 13,946 $ 59,528 $ (17,278)