Summary of Significant Accounting Policies (Components of Gross and Net Intangible Asset Balances) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 121,627	$ 109,341
Accumulated Amortization	97,690	89,579
Net Carrying Amount	23,937	19,762
Gross Carrying Amount, Intangibles	123,027
Accumulated Amortization, Intangibles	97,690
Net Carrying Amount, Intangibles	$ 25,337	$ 19,762
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	5 years 3 months 18 days	2 months 12 days
Gross Carrying Amount	$ 55,400	$ 48,000
Accumulated Amortization	42,689	43,028
Net Carrying Amount	$ 12,711	$ 4,972
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 years 3 months 18 days	3 months 18 days
Gross Carrying Amount	$ 40,300	$ 37,000
Accumulated Amortization	37,567	32,889
Net Carrying Amount	$ 2,733	$ 4,111
Maintenance contracts
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	1 year 3 months 18 days	2 years 3 months 18 days
Gross Carrying Amount	$ 17,000	$ 17,000
Accumulated Amortization	12,467	9,067
Net Carrying Amount	$ 4,533	$ 7,933
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	4 years 3 months 18 days	3 months 18 days
Gross Carrying Amount	$ 5,100	$ 2,500
Accumulated Amortization	2,846	2,222
Net Carrying Amount	$ 2,254	$ 278
License agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	6 years 4 months 24 days	9 years 8 months 12 days
Gross Carrying Amount	$ 2,445	$ 3,413
Accumulated Amortization	1,120	1,473
Net Carrying Amount	$ 1,325	$ 1,940
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	2 years 8 months 12 days	3 years 8 months 12 days
Gross Carrying Amount	$ 1,382	$ 1,428
Accumulated Amortization	1,001	900
Net Carrying Amount	381	$ 528
In-process research and development, with indefinite life
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 1,400