Segment Information (Financial Information by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Revenues	$ 3,150,806	$ 3,047,734	$ 3,249,799
Depreciation and amortization	33,507	35,328	33,653
Change in fair value of contingent consideration	516	6,941	15,200
Operating income	61,483	(64,967)	94,734
Capital expenditures	2,363	6,387	5,797
Corporate
Depreciation and amortization	3,027	3,179	3,488
Operating income	(11,634)	(4,000)	(1,218)
Capital expenditures	14	0	4
Reportable Geographical Components | United States
Revenues	2,854,178	2,787,475	2,949,725
Reportable Geographical Components | International
Revenues	310,075	292,600	332,019
Less intercompany sales
Revenues	(13,447)	(32,341)	(31,945)
Worldwide Barcode, Networking & Security Segment
Revenues	2,175,141	2,093,217	2,141,896
Change in fair value of contingent consideration	0	0	0
Worldwide Barcode, Networking & Security Segment | Operating Segments
Depreciation and amortization	15,557	16,910	17,274
Operating income	28,402	(83,515)	57,019
Capital expenditures	1,251	3,632	3,660
Worldwide Communications & Services Segment
Revenues	975,665	954,517	1,107,903
Change in fair value of contingent consideration	516	6,941	15,200
Worldwide Communications & Services Segment | Operating Segments
Depreciation and amortization	14,923	15,239	12,891
Operating income	44,715	22,548	38,933
Capital expenditures	$ 1,098	$ 2,755	$ 2,133