Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted Average Common Shares Outstanding - Basic (in shares)	41,597	41,500	41,573	41,478
Effect of Dilutive Securities:
Total Dilutive Shares (in shares)	347	318	334	281
Weighted Average Common Shares Outstanding – Diluted (in shares)	41,944	41,818	41,907	41,759
Stock Performance Awards
Effect of Dilutive Securities:
Effect of Dilutive Securities (in shares)	259	223	239	183
Restricted Stock Awards
Effect of Dilutive Securities:
Effect of Dilutive Securities (in shares)	85	75	94	80
Employee Stock Purchase Plan Shares and Other
Effect of Dilutive Securities:
Effect of Dilutive Securities (in shares)	3	20	1	18