Employee Benefit Plans - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Accumulated other comprehensive income (loss) related to pension plan
Balance at beginning of period	$ (19,973)	$ (22,571)
Amortization of net actuarial loss and prior service costs	480	560
Current period net actuarial gain (loss)	(4,715)	2,038
Net change	(4,235)	2,598	$ (2,521)
Balance at end of period	$ (24,208)	$ (19,973)	$ (22,571)