Summary of Significant Accounting Policies (Narratives) (Details) - USD ($)		12 Months Ended
	Jul. 01, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Significant Accounting Policies [Line Items]
Intangible asset and goodwill impairment			$ 0	$ 0
Hardware products warranty period (in years)		1 year
Software products warranty period (in days)		90 days
Advertising expenses		$ 300,000	500,000	$ 400,000
Minimum percentage of tax benefit realized upon settlement		50.00%
Change in unrealized gains on available for sale securities			$ 497,000
ASU 2016-01
Significant Accounting Policies [Line Items]
Change in unrealized gains on available for sale securities	$ 500,000
Maximum | ASU 2016-02
Significant Accounting Policies [Line Items]
Operating lease, right-of-use asset		$ 78,000,000
Operating lease, liability		$ 92,000,000
Maximum | Purchased Software
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		4 years
Maximum | Computer Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		4 years
Maximum | Office Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		7 years
Maximum | Leasehold Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		10 years
Minimum | ASU 2016-02
Significant Accounting Policies [Line Items]
Operating lease, right-of-use asset		$ 68,000,000
Operating lease, liability		$ 82,000,000
Minimum | Purchased Software
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		1 year
Minimum | Computer Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		1 year
Minimum | Office Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		3 years
Minimum | Leasehold Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		2 years
Cash equivalents | Maximum
Significant Accounting Policies [Line Items]
Maturity period for investments		3 months
Short-term Investments | Maximum
Significant Accounting Policies [Line Items]
Maturity period for investments		1 year
Short-term Investments | Minimum
Significant Accounting Policies [Line Items]
Maturity period for investments		3 months