Segment Information (Financial Information by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Sales	$ 757,342	$ 842,701
Depreciation and amortization	8,711	8,518
Change in fair value of contingent consideration	516	2,472
Operating income (loss)	1,634	19,513
Capital expenditures	748	939
Restructuring costs	8,268	169
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization	795	1,008
Operating income (loss)	(8,766)	(757)
Reportable Geographical Components \| United States and Canada
Segment Reporting Information [Line Items]
Sales	691,080	777,969
Reportable Geographical Components \| International
Segment Reporting Information [Line Items]
Sales	73,739	74,193
Geography Eliminations
Segment Reporting Information [Line Items]
Sales	(7,477)	(9,461)
Worldwide Barcode, Networking & Security
Segment Reporting Information [Line Items]
Sales	523,577	581,187
Capital expenditures	339	526
Worldwide Barcode, Networking & Security \| Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	4,189	4,202
Operating income (loss)	2,147	11,071
Worldwide Communications & Services
Segment Reporting Information [Line Items]
Sales	233,765	261,514
Change in fair value of contingent consideration	516	2,472
Capital expenditures	409	413
Worldwide Communications & Services \| Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	3,727	3,308
Operating income (loss)	$ 8,253	$ 9,199

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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