Segment Information (Assets By Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Assets	$ 1,692,094	$ 2,067,261
Property and equipment, net	55,641	60,570
United States [Member]
Segment Reporting Information [Line Items]
Property and equipment, net	53,083	58,961
International [Member]
Segment Reporting Information [Line Items]
Property and equipment, net	2,558	1,609
Operating Segments [Member] | Worldwide Barcode, Networking and Security Segment [Member]
Segment Reporting Information [Line Items]
Assets	875,882	1,097,207
Operating Segments [Member] | Worldwide Communications & Services Segment [Member]
Segment Reporting Information [Line Items]
Assets	757,148	905,439
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Assets	$ 59,064	$ 64,615