Note 14. Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Net income	$ 16,811	$ 6,598
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	22	8
Net Income (Loss) Available to Common Stockholders, Basic	$ 16,789	$ 6,590
Weighted Average Number of Shares Outstanding, Basic	25,153	25,495
Dilutive effect of average outstanding performance shares	94	90
Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights	23	24
Weighted Average Number of Shares Outstanding, Diluted	25,270	25,609
Earnings Per Share, Basic	$ 0.67	$ 0.26
Earnings Per Share, Diluted	$ 0.66	$ 0.26