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Intangible Assets (Components of Gross and Net Intangible Asset Balances) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 234,066 | $ 234,066
Accumulated Amortization | 174,163 | 165,672
Net Carrying Amount | $ 59,903 | $ 68,394
Developed technology |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 2 years 2 months 12 days | 2 years 4 months 24 days
Gross Carrying Amount | $ 156,100 | $ 156,100
Accumulated Amortization | 110,420 | 103,806
Net Carrying Amount | $ 45,680 | $ 52,294
Customer relationships |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 4 years 9 months 18 days | 4 years 9 months 18 days
Gross Carrying Amount | $ 63,039 | $ 63,039
Accumulated Amortization | 50,914 | 49,598
Net Carrying Amount | $ 12,125 | $ 13,441
Backlogs |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 0 years | 0 years
Gross Carrying Amount | $ 400 | $ 400
Accumulated Amortization | $ 400 | $ 400
Trade names |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 1 year 2 months 12 days | 1 year 4 months 24 days
Gross Carrying Amount | $ 10,700 | $ 10,700
Accumulated Amortization | 9,047 | 8,554
Net Carrying Amount | $ 1,653 | $ 2,146
License agreements |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 6 years 2 months 12 days | 5 years 9 months 18 days
Gross Carrying Amount | $ 2,445 | $ 2,445
Accumulated Amortization | 2,000 | 1,932
Net Carrying Amount | $ 445 | $ 513
Other intangibles |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Amortization Period | 0 years | 0 years
Gross Carrying Amount | $ 1,382 | $ 1,382
Accumulated Amortization | $ 1,382 | $ 1,382

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