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Equity Compensation (Schedule of Equity Compensation Restricted Stock Activity) (Details) - Restricted Stock
shares in Thousands
9 Months Ended
Sep. 30, 2020
$ / shares
shares
Equity Compensation [Abstract]  
Number of shares nonvested at beginning of period | shares 369
Number of shares granted | shares 151
Number of shares vested | shares (87)
Number of shares forfeited | shares (44)
Number of shares nonvested at end of period | shares 389
Weighted average grant date fair value nonvested at beginning of period | $ / shares $ 32.83
Weighted average grant date fair value shares granted | $ / shares 38.43
Weighted average grant date fair value shares vested | $ / shares 32.86
Weighted average grant date fair value shares forfeited | $ / shares 35.52
Weighted average grant date fair value nonvested at end of period | $ / shares $ 34.70