Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net Income	$ 7,416	$ 41,054	$ 39,344
Average Shares Outstanding for Basic EPS Calculation	36,901	36,883	36,842
Dilutive Effect of Average Outstanding Compensation Awards	471	154	222
Average Shares Outstanding for Diluted EPS Calculation	37,372	37,037	37,064
Basic Earnings Per Share (in dollars per share)	$ 0.20	$ 1.11	$ 1.07
Diluted Earnings Per Share (in dollars per share)	$ 0.20	$ 1.11	$ 1.06