XML 43 R90.htm IDEA: XBRL DOCUMENT v3.19.3
Fair Value of Financial Instruments - Valuation for Level 3 Liabilities (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Balance at beginning of period $ 11,022,248 $ 9,189,459  
Total losses (gains) (realized/unrealized)      
Included in earnings 694,043 (350,674)  
Purchases 3,633,525 767,477  
Paydowns (368,107) (101,949)  
Balance at the end of period 14,978,199 9,504,313  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Liabilities of consolidated VIEs 15,072,191   $ 11,191,736
Charge-off (3,510)    
Consolidated K-Series      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Liabilities of consolidated VIEs 3,600,000   $ 800,000
Multi-family loans held in securitization trust      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Charge-off $ (3,510) $ 0