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Earnings per Share Earnings per share narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 14, 2017 | Apr. 10, 2013
Earnings Per Share Narrative [Abstract] |  |  |  |  |  |
Preferred shares redeemed |  |  |  |  | 2,000 | 2,000
Excess of fair value over book value of preferred shares redeemed | $ 2,257 | $ 0 | $ 2,257 | $ 0 |  |

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- Definition Earnings Per Share Narrative [Abstract] + References No definition available. + Details
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- Definition Preferred shares redeemed + References No definition available. + Details
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- Definition The excess of (1) fair value of the consideration transferred to the holders of the preferred stock over (2) the carrying amount of the preferred stock in the registrant's balance sheet, during the accounting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section S99 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27010884&loc=d3e42851-122695 + Details
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