Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Land	$ 16,581	$ 16,781
Land improvements	24,251	23,571
Buildings	129,991	129,313
Leasehold improvements	51,125	51,708
Equipment and furniture	394,507	400,856
Aircraft and equipment	41,400	41,492
Construction in progress	14,208	2,547
Finance lease right of use asset	312	320
Property and equipment, total	672,375	666,588
Less accumulated depreciation	466,711	454,879
Property and equipment, net	205,664	211,709
Liabilities Assumed	3,969	4,097
Impairment of Long-Lived Assets to be Disposed of	0	0	$ 0
Assets Held-for-sale, Not Part of Disposal Group	$ 0	$ 20,201
Land Improvements [Member] | Minimum [Member]
Estimated Useful Life	5 years
Land Improvements [Member] | Maximum [Member]
Estimated Useful Life	20 years
Building [Member] | Minimum [Member]
Estimated Useful Life	20 years
Building [Member] | Maximum [Member]
Estimated Useful Life	30 years
Leasehold Improvements [Member] | Minimum [Member]
Estimated Useful Life	5 years
Leasehold Improvements [Member] | Maximum [Member]
Estimated Useful Life	30 years
Office Equipment [Member] | Minimum [Member]
Estimated Useful Life	3 years
Office Equipment [Member] | Maximum [Member]
Estimated Useful Life	10 years
Flight Equipment [Member] | Minimum [Member]
Estimated Useful Life	4 years
Flight Equipment [Member] | Maximum [Member]
Estimated Useful Life	10 years