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ACQUISITION OF MTGE INVESTMENT CORP - Summary of Acquired Assets (Details) - USD ($) $ in Thousands | Sep. 07, 2018 | Sep. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018
--- | --- | --- | --- | ---
Net Assets: |  |  |  |  |  |
Cash and cash equivalents | [1] |  | $ 1,793,921 | $ 1,735,749 | [2] |
Securities |  |  | 116,094,061 | 92,623,788 |  |
Real estate, net |  |  | 725,508 | 739,473 | [2] |
Derivative assets |  |  | 168,755 | 200,503 | [2] |
Reverse repurchase agreements |  |  | 0 | 650,040 | [2] |
Receivable for unsettled trades |  |  | 193,229 | 68,779 | [2] | $ 1,266,840
Principal and interest receivable |  |  | 483,744 | 357,365 | [2] |
Intangible assets, net |  |  | 94,904 | 100,854 | [2] |
Other assets |  |  | 381,189 | 333,988 | [2] |
Total assets |  |  | 128,956,120 | 105,787,527 | [2] |
Repurchase agreements |  |  | 102,682,104 | 81,115,874 | [2] |
Mortgages payable |  |  | 485,657 | 511,056 | [2] |
Derivative liabilities |  |  | 972,415 | 889,750 | [2] |
Interest payable |  |  | 565,797 | 570,928 | [2] |
Dividends payable |  |  | 359,491 | 394,129 | [2] | $ 102,811
Other liabilities |  |  | 99,214 | 74,580 | [2] |
Total liabilities |  |  | $ 113,732,416 | $ 91,669,726 | [2] |
Mountain Merger Sub Corporation |  |  |  |  |  |
Consideration Transferred: |  |  |  |  |  |
Cash |  | $ 450,287 |  |  |  |
Equity issued |  | 455,900 |  |  |  |
Total consideration |  | 961,230 |  |  |  |
Net Assets: |  |  |  |  |  |
Cash and cash equivalents |  | 191,953 |  |  |  |
Securities |  | 4,111,930 |  |  |  |
Real estate, net |  | 277,648 |  |  |  |
Derivative assets |  | 18,629 |  |  |  |
Reverse repurchase agreements |  | 938,251 |  |  |  |
Receivable for unsettled trades |  | 6,809 |  |  |  |
Principal receivable |  | 44,462 |  |  |  |
Principal and interest receivable |  | 14,282 |  |  |  |
Intangible assets, net |  | 14,483 |  |  |  |
Other assets |  | 50,105 |  |  |  |
Total assets |  | 5,668,552 |  |  |  |
Repurchase agreements |  | 3,561,816 |  |  |  |
Mortgages payable |  | 201,629 |  |  |  |
U.S. Treasury securities sold, not yet purchased |  | 934,149 |  |  |  |
Derivative liabilities |  | 2,498 |  |  |  |
Interest payable |  | 22,220 |  |  |  |
Dividends payable |  | 819 |  |  |  |
Other liabilities |  | 28,715 |  |  |  |
Total liabilities |  | 4,751,846 |  |  |  |
Net assets acquired |  | 916,706 |  |  |  |
Common stock | Mountain Merger Sub Corporation |  |  |  |  |  |
Consideration Transferred: |  |  |  |  |  |
Equity issued |  | 455,943 |  |  |  |
Preferred stock | Mountain Merger Sub Corporation |  |  |  |  |  |
Consideration Transferred: |  |  |  |  |  |
Equity issued |  | $ 55,000 |  |  |  |
[1] | (2) Includes cash of consolidated Variable Interest Entities (“VIEs”) of $49.6 million and $30.4 million at September 30, 2019 and December 31, 2018, respectively.
[2] | (1) Derived from the audited consolidated financial statements at December 31, 2018.

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