Segment Information (Assets By Segment) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Assets	$ 2,062,155	$ 1,945,295
Property and equipment, net by Geography Category	71,282	73,042
Operating Segments [Member] | United States and Canada [Member]
Segment Reporting Information [Line Items]
Property and equipment, net by Geography Category	67,111	69,032
Operating Segments [Member] | International [Member]
Segment Reporting Information [Line Items]
Property and equipment, net by Geography Category	4,171	4,010
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Assets	44,826	41,662
Barcode, Networking & Security Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Assets	1,079,812	1,062,143
Communications & Services Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Assets	$ 937,517	$ 841,490