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SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 9 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 31, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Jul. 31, 2019 | Jun. 30, 2019 | Apr. 30, 2019 | Jan. 31, 2019 | Dec. 31, 2018 | [2] | Oct. 31, 2018 | Jul. 31, 2018 | Mar. 31, 2018
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, redemption price (in dollars per share) |  |  | $ 25.00 |  |  |  |  |  |  |  |  |
Loans | [1] |  | $ 3,946,614 |  |  |  |  |  | $ 4,585,975 |  |  |
OBX Trust | Consolidated VIEs |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loans |  |  |  |  | $ 463,405 | $ 383,760 | $ 388,156 | $ 393,961 |  | $ 384,027 | $ 383,451 | $ 327,162
Series C |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock to be redeemed (in shares) |  |  | 7,000,000.0 | 5,000,000.0 |  |  |  |  |  |  |  |
Preferred stock, redemption price (in dollars per share) |  |  | $ 25.00 |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased (in shares) |  | 7,900,000 |  |  |  |  |  |  |  |  |  |
Stock repurchased, value |  | $ 68,200 |  |  |  |  |  |  |  |  |  |
Subsequent Event | OBX Trust | Consolidated VIEs |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loans |  | $ 465,500 |  |  |  |  |  |  |  |  |  |
[1] | (4) Includes $76.3 million and $97.5 million of residential mortgage loans held for sale and $0 and $42.2 million of commercial mortgage loans held for sale 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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