Business Combinations (Narratives) (Details) $ in Thousands						12 Months Ended
	Dec. 01, 2017 USD ($)	Oct. 27, 2017 USD ($) Quarter	Jul. 14, 2017 USD ($)	Mar. 07, 2017 USD ($)	Oct. 28, 2016 USD ($)	Jun. 30, 2018 USD ($) Acquisition	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2018 USD ($)	Oct. 28, 2017 USD ($)
Business Acquisition [Line Items]
Number of acquisitions completed | Acquisition						3
Cash payment upon closing amount						$ 97,581	$ 51,088
Acquisition and integration related expenses						53,900	$ 13,105	$ 1,145
Recorded gain from bargain purchase						5,030
Data Center Business
Business Acquisition [Line Items]
Asset purchase agreement closing date		Oct. 27, 2017
Cash payment upon closing amount		$ 23,000
Deferred payment to be paid per quarter		$ 1,000
Number of quarters deferred payment to be paid | Quarter		20
Quarterly earn out payments in percentage of profits		50.00%
Quarterly earn out payments period		5 years
Fair value of contingent consideration						1,500
Increase in revenue						136,300
Acquisition and integration related expenses						40,200
Business acquisition, purchase price		$ 84,337
Net assets acquired, financing receivables						33,488				$ 33,488
Net assets acquired, identifiable intangible assets						32,800				$ 28,600
Broadcom Corporation
Business Acquisition [Line Items]
Consent fee paid to terminate previous asset purchase agreement						25,000
Campus Fabric Business
Business Acquisition [Line Items]
Asset purchase agreement closing date			Jul. 14, 2017
Increase in revenue						179,800
Acquisition and integration related expenses						18,700
Business acquisition, purchase price				$ 100,000
Business acquisition, provisional consideration				$ 79,400
Net assets acquired, financing receivables			$ 18,112			19,527
Net assets acquired, identifiable intangible assets			$ 44,000			41,300
Campus Fabric Business | In-Process Research and Development
Business Acquisition [Line Items]
Fair value of indefinite lived intangibles									$ 2,400
Campus Fabric Business | Developed Technology
Business Acquisition [Line Items]
Fair value of indefinite lived intangibles									$ 2,400
Capital Financing Business
Business Acquisition [Line Items]
Asset purchase agreement closing date	Dec. 01, 2017
Business combination, payments to seller in percentage of finance receivables	90.00%
Fair value of payments to acquire finance receivables	$ 13,000
Net assets acquired, financing receivables	13,700
Net assets acquired, lease equipment	3,500
Net assets acquired, identifiable intangible assets	800
Capital Financing Business | Acquisition and Integration Costs
Business Acquisition [Line Items]
Recorded gain from bargain purchase	$ 5,000
Zebra Technologies Corporation
Business Acquisition [Line Items]
Asset purchase agreement closing date					Oct. 28, 2016
Net assets acquired, financing receivables					$ 14,636
Net assets acquired, identifiable intangible assets					20,300
Net cash consideration					$ 49,500
Zebra Technologies Corporation | In-Process Research and Development
Business Acquisition [Line Items]
Fair value of indefinite lived intangibles						1,400
Zebra Technologies Corporation | Developed Technology
Business Acquisition [Line Items]
Fair value of indefinite lived intangibles						$ 1,400