Segment Information (Financial Information by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Revenues	$ 3,047,734	$ 3,249,799	$ 3,164,709
Depreciation and amortization	35,328	33,653	34,492
Change in fair value of contingent consideration	6,941	15,200	37,043
Operating income	(64,967)	94,734	69,006
Capital expenditures	6,387	5,797	6,998
Worldwide Barcode, Networking and Security Segment [Member]
Revenues	2,093,217	2,141,896	2,143,135
Change in fair value of contingent consideration	0	0	69
Worldwide Communications and Services Segment [Member]
Revenues	954,517	1,107,903	1,021,574
Change in fair value of contingent consideration	6,941	15,200	36,974
Operating Segments [Member] | Worldwide Barcode, Networking and Security Segment [Member]
Depreciation and amortization	16,910	17,274	17,958
Operating income	(83,515)	57,019	49,313
Capital expenditures	3,632	3,660	4,222
Operating Segments [Member] | Worldwide Communications and Services Segment [Member]
Depreciation and amortization	15,239	12,891	13,041
Operating income	22,548	38,933	19,865
Capital expenditures	2,755	2,133	1,422
Corporate, Non-Segment [Member]
Depreciation and amortization	3,179	3,488	3,493
Operating income	(4,000)	(1,218)	(172)
Capital expenditures	0	4	1,354
Geography Eliminations [Member]
Revenues	(32,341)	(31,945)	(60,395)
United States [Member] | Reportable Geographical Components [Member]
Revenues	2,787,475	2,949,725	2,907,591
International [Member] | Reportable Geographical Components [Member]
Revenues	$ 292,600	$ 332,019	$ 317,513
BRAZIL [Member] | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Concentration risk percentage		10.00%