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Preferred and Common Shares and Additional Paid-in Capital (Details) - February 2017 Private Placement $ / shares in Units, $ in Thousands | 1 Months Ended
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Feb. 02, 2017 USD ($) $ / shares shares
Class of Stock [Line Items] |
Common shares offered in private placement | 6,310,272
Price per share | $ / shares | $ 8.154
Proceeds from issuance of private placement, net of offering expenses | $ | $ 50,554
Oaktree and its affiliates |
Class of Stock [Line Items] |
Common shares offered in private placement | 3,244,292

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