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Income Taxes - Schedule of Common Stock Dividends Characterized for Tax (Details) (Income Tax [Member], USD $)
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6 Months Ended | 12 Months Ended | ||
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Jul. 17, 2013
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Dividends Per Share [Line Items] | ||||
| Common stock dividends paid (in dollars per share) | $ 0.78 | $ 0.58 | $ 0.61 | $ 0.23 |
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Common Shares [Member]
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| Dividends Per Share [Line Items] | ||||
| Ordinary income (in dollars per share) | $ 0.12 | $ 0 | $ 0.29 | $ 0.23 |
| Return of capital (in dollars per share) | $ 0.66 | $ 0.58 | $ 0 | $ 0 |
| Total capital gain (in dollars per share) | $ 0 | $ 0 | $ 0.32 | $ 0 |