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STOCKHOLDERS' EQUITY - Common Stock (Details) - USD ($) $ in Thousands |  |  |  | 6 Months Ended
--- | --- | --- | --- | ---
Apr. 08, 2015 | Nov. 07, 2014 | May. 21, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Class of Stock [Line Items] |  |  |  |  |
Net proceeds from issuance of common stock |  |  |  | $ 0 | $ 54,474
Underwriters option period | 30 days |  |  |  |
Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Issuance of stock shares |  |  | 5,150,000 |  |
Net proceeds from issuance of common stock |  | $ 49,900 | $ 50,400 |  |
Underwriters option period |  |  | 30 days |  |
Common Stock | OCM BOCA Investor, LLC (Oaktree) |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Issuance of stock shares |  | 3,288,947 |  |  |
Common Stock | Patriot Financial Partners, L.P. |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Issuance of stock shares |  | 1,900,000 |  |  |
Common Stock | Over Allotment Option |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Issuance of stock shares |  |  | 772,500 |  |
Net proceeds from issuance of common stock |  |  | $ 7,600 |  |
Underwriters option period |  |  | 30 days |  |

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