Earnings Per Share (Details) - shares	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Reconciliation of Diluted Shares
Denominator for Basic Earnings Per Share (in shares)	39,703,735	40,541,594	39,692,695	40,738,772
Dilutive Effect of Equity Based Awards (in shares)	128,740	228,173	180,639	249,229
Denominator for Diluted Earnings Per Share (in shares)	39,832,475	40,769,767	39,873,334	40,988,001
Antidilutive Stock Options and Restricted Stock Outstanding (in shares)	113,906	4,706	111,507	4,706

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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