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VARIABLE INTEREST ENTITIES - Geographic Concentrations of Credit Risk Exceeding 5% of Total Loan Unpaid Principal Balances (Details) - Consolidated VIEs $ in Thousands | 6 Months Ended
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Jun. 30, 2019 USD ($)
Commercial Trusts |
Concentration Risk [Line Items] |
Principal Balance |
Commercial Trusts | California |
Concentration Risk [Line Items] |
Principal Balance | 492,586
Commercial Trusts | California |
Concentration Risk [Line Items] |
Principal Balance | 473,786
Commercial Trusts | Florida |
Concentration Risk [Line Items] |
Principal Balance | 143,025
Commercial Trusts | Florida |
Concentration Risk [Line Items] |
Principal Balance | 1,058,775
Commercial Trusts | Total |
Concentration Risk [Line Items] |
Principal Balance | $ 2,168,172
Commercial Trusts | Securitized Loans | Geographic Concentration Risk |
Concentration Risk [Line Items] |
% of Balance |
Commercial Trusts | Securitized Loans | Geographic Concentration Risk | California |
Concentration Risk [Line Items] |
% of Balance | 22.70%
Commercial Trusts | Securitized Loans | Geographic Concentration Risk | California |
Concentration Risk [Line Items] |
% of Balance | 21.90%
Commercial Trusts | Securitized Loans | Geographic Concentration Risk | Florida |
Concentration Risk [Line Items] |
% of Balance | 6.60%
Commercial Trusts | Securitized Loans | Geographic Concentration Risk | Florida |
Concentration Risk [Line Items] |
% of Balance | 48.80%
Commercial Trusts | Securitized Loans | Geographic Concentration Risk | Total |
Concentration Risk [Line Items] |
% of Balance | 100.00%
Residential Trusts |
Concentration Risk [Line Items] |
Principal Balance | $ 93,921
Residential Trusts | California |
Concentration Risk [Line Items] |
Principal Balance | 13,168
Residential Trusts | California |
Concentration Risk [Line Items] |
Principal Balance | 39,860
Residential Trusts | Illinois |
Concentration Risk [Line Items] |
Principal Balance | 7,148
Residential Trusts | Washington |
Concentration Risk [Line Items] |
Principal Balance | 6,452
Residential Trusts | Other (1) |
Concentration Risk [Line Items] |
Principal Balance | $ 27,293
Residential Trusts | Securitized Loans | Geographic Concentration Risk |
Concentration Risk [Line Items] |
% of Balance | 100.00%
Residential Trusts | Securitized Loans | Geographic Concentration Risk | California |
Concentration Risk [Line Items] |
% of Balance | 14.00%
Residential Trusts | Securitized Loans | Geographic Concentration Risk | California |
Concentration Risk [Line Items] |
% of Balance | 42.40%
Residential Trusts | Securitized Loans | Geographic Concentration Risk | Illinois |
Concentration Risk [Line Items] |
% of Balance | 7.60%
Residential Trusts | Securitized Loans | Geographic Concentration Risk | Washington |
Concentration Risk [Line Items] |
% of Balance | 6.90%
Residential Trusts | Securitized Loans | Geographic Concentration Risk | Other (1) |
Concentration Risk [Line Items] |
% of Balance | 29.10%

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