Segment Information (Financial Information by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Sales	$ 943,813	$ 857,583
Depreciation and amortization	7,228	7,650
Operating income (loss)	34,888	30,328
Capital expenditures	(1,758)	(1,090)
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization	877	719
Operating income (loss)	0	(83)
Reportable Geographical Components \| United States and Canada
Segment Reporting Information [Line Items]
Sales	861,602	771,914
Reportable Geographical Components \| International
Segment Reporting Information [Line Items]
Sales	84,275	87,812
Geography Eliminations
Segment Reporting Information [Line Items]
Sales	(2,064)	(2,143)
Specialty Technology Solutions
Segment Reporting Information [Line Items]
Sales	576,329	501,711
Capital expenditures	(502)	(117)
Specialty Technology Solutions \| Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	2,702	2,969
Operating income (loss)	21,852	14,104
Modern Communications & Cloud
Segment Reporting Information [Line Items]
Sales	367,484	355,872
Capital expenditures	(1,256)	(973)
Modern Communications & Cloud \| Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	3,649	3,962
Operating income (loss)	$ 13,036	$ 16,307

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