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Equity Compensation (Time Based Restricted Stock Awards) (Details) - Time Based Restricted Stock
9 Months Ended
Sep. 30, 2018
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Non-vested awards outstanding beginning balance (shares) 173,331
Awards granted (shares) 44,610
Stock issued (shares) (79,375)
Awards forfeited (shares) (16,302)
Non-vested awards outstanding ending balance (shares) 122,264