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Equity Compensation (Details) - Omnibus Equity and Director Equity Plan - Restricted Stock Units
3 Months Ended
Mar. 31, 2019
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Units, Nonvested, beginning balance | shares 23,591
Units, Vested | shares (3,794)
Units, Nonvested, ending balance | shares 19,797
Price at Grant Date, Nonvested, beginning balance | $ / shares $ 19.67
Price at Grant Date, Vested | $ / shares 18.25
Price at Grant Date, Nonvested, ending balance | $ / shares $ 19.94