Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income from continuing operations	$ 13,786			$ 5,715			$ 24,732	$ 29,633
Net loss from discontinued operations	(688)			(4,002)			(37,647)	(5,025)
Net income (loss)	$ 13,098	$ (14,194)	$ (11,819)	$ 1,713	$ 11,366	$ 11,530	$ (12,915)	$ 24,608
Denominator:
Weighted-average shares, basic (in shares)	25,455,000			25,346,000			25,404,000	25,386,000
Dilutive effect of share-based payments (in shares)	117,000			17,000			80,000	58,000
Weighted-average shares, diluted (in shares)	25,572,000			25,363,000			25,484,000	25,444,000
Net income from continuing operations per common share, basic (in dollars per share)	$ 0.54			$ 0.23			$ 0.97	$ 1.17
Net loss from discontinued operations per common share, basic (in dollars per share)	(0.03)			(0.16)			(1.48)	(0.20)
Net income (loss) per common share, basic (in dollars per share)	0.51			0.07			(0.51)	0.97
Net income from continuing operations per common share, diluted (in dollars per share)	0.54			0.23			0.97	1.16
Net loss from discontinued operations per common share, diluted (in dollars per share)	(0.03)			(0.16)			(1.48)	(0.20)
Net income (loss) per common share, diluted (in dollars per share)	$ 0.51			$ 0.07			$ (0.51)	$ 0.97
Weighted average shares excluded from the computation of diluted earnings per share (in shares)	1,532,961			1,036,740			1,285,153	980,803