Segment Information (Assets By Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023
Segment Reporting Information [Line Items]
Assets	$ 1,780,805	$ 2,068,169
Property and equipment, net by Geography Category	36,546	37,379
United States and Canada
Segment Reporting Information [Line Items]
Property and equipment, net by Geography Category	24,703	27,323
International
Segment Reporting Information [Line Items]
Property and equipment, net by Geography Category	11,843	10,056
Continuing Operations | Corporate
Segment Reporting Information [Line Items]
Assets	0	0
Continuing Operations | Specialty Technology Solutions | Operating Segments
Segment Reporting Information [Line Items]
Assets	908,674	1,104,103
Continuing Operations | Modern Communications & Cloud | Operating Segments
Segment Reporting Information [Line Items]
Assets	$ 872,131	$ 964,066