Employee Benefit Plans (Employer Contributions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Matching contributions	$ 1,262	$ 1,214	$ 1,262
Discretionary contributions	0	0	1,536
Total contributions	$ 1,262	$ 1,214	$ 2,798