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Share-Based Compensation (Summary of Restricted Stock Awards) (Details)
9 Months Ended
Sep. 30, 2017
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Granted in period (shares) | shares 214,649
Granted in period (usd per share) | $ / shares $ 10.06
Number of Shares (in thousands)  
Nonvested, December 31, 2014 (shares) | shares 38,000
Granted (shares) | shares 214,649
Vested (shares) | shares (215,000)
Forfeited (shares) | shares 0
Nonvested, June 30, 2015 (shares) | shares 38,000
Weighted Average Grant Date Fair Value per Share  
Nonvested, December 31, 2014 (usd per share) | $ / shares $ 7.51
Granted (usd per share) | $ / shares 10.06
Vested (usd per share) | $ / shares 9.57
Forfeited (usd per share) | $ / shares 0.00
Nonvested, June 30, 2015 (usd per share) | $ / shares $ 10.25
Director [Member]  
Weighted Average Grant Date Fair Value per Share  
SharebasedCompensationArrangementbySharebasedPaymentAwardElectedAmountofRetainerFeeDeferred 100.00%
Restricted Stock [Member] | Officer [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Percentage of awards vested at time of grant 100.00%