Segment Information (Financial Information by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 3,873,111	$ 3,846,260	$ 3,568,186
Depreciation and amortization	36,618	37,495	24,968
Change in fair value of contingent consideration	15,200	37,043	5,211
Operating income	89,964	67,639	88,239
Capital expenditures	7,215	8,159	8,849
Assets	2,067,261	1,945,295
Property and equipment, net	63,363	73,042
Worldwide Barcode, Networking and Security Segment [Member]
Revenues	2,589,837	2,628,988	2,389,256
Worldwide Communications and Services Segment [Member]
Revenues	1,283,274	1,217,272	1,178,930
Operating Segments [Member] \| Worldwide Barcode, Networking and Security Segment [Member]
Revenues	2,589,837	2,628,988	2,389,256
Depreciation and amortization	17,623	18,233	6,496
Change in fair value of contingent consideration	0	69	0
Operating income	59,875	56,911	49,727
Capital expenditures	3,876	4,841	3,796
Assets	1,097,207	1,062,143
Operating Segments [Member] \| Worldwide Communications and Services Segment [Member]
Revenues	1,283,274	1,217,272	1,178,930
Depreciation and amortization	15,507	15,769	15,099
Change in fair value of contingent consideration	15,200	36,974	5,211
Operating income	31,307	10,900	39,768
Capital expenditures	3,335	1,964	3,163
Assets	905,439	841,490
Corporate, Non-Segment [Member]
Depreciation and amortization	3,488	3,493	3,373
Operating income	(1,218)	(172)	(1,256)
Capital expenditures	4	1,354	1,890
Assets	64,615	41,662
Intersegment Eliminations [Member]
Revenues	(28,855)	(30,210)	(33,673)
United States [Member] \| Operating Segments [Member]
Revenues	2,946,644	2,877,225	2,719,413
Property and equipment, net	58,961	69,032
International [Member] \| Operating Segments [Member]
Revenues	955,322	999,245	$ 882,446
Property and equipment, net	$ 4,402	$ 4,010

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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