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Summary Of Significant Accounting Policies - Property, Plant and Equipment (Details) shares in Thousands, $ in Thousands | 12 Months Ended
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Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) shares | Jun. 30, 2018 USD ($) shares
Property, Plant and Equipment [Line Items] |  |  |
Amortization | $ 13,811 | $ 14,411 | $ 14,668
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months | 12,500 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | 12,100 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 11,900 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 10,700 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | $ 9,500 |  |
Increase in weighted average shares due to dilutive effect of unexercised capital stock options, unvested restricted stock awards and unvested restricted stock units | shares |  | 912 | 1,210
Unexercised capital stock options, restricted stock units and restricted stock awards excluded from computation of diluted EPS | shares |  | 427 | 381
Termination of Warranty | 30 |  |
Research and Development Expense | $ 38,700 | $ 39,000 | $ 38,900
Currency Transaction Gain (Loss), before Tax | $ (3,400) | $ (2,700) | $ (6,400)
Minimum [Member] | Building and Improvements [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |
Minimum [Member] | Machinery and Equipment [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 4 years |  |
Minimum [Member] | Furniture and Fixtures [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |
Minimum [Member] | ComputerHardwareAndSoftware [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |
Maximum [Member] | Building and Improvements [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |
Maximum [Member] | Machinery and Equipment [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |
Maximum [Member] | Furniture and Fixtures [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 10 years |  |
Maximum [Member] | ComputerHardwareAndSoftware [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |

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