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Summary Of Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Thousands, shares in Millions | 12 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015
Property, Plant and Equipment [Line Items] |  |  |
Conditions for Investments in Entities Accounted for Equity Basis | 0.50 |  |
Conditions for Investments in Entities Accounted for on Cost Basis | 0.50 |  |
Excess and obsolete inventory reserve | $ 32,100 | $ 36,700 |
Amortization | 16,578 | 20,762 | $ 26,686
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months | 14,500 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | 14,100 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 13,800 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 13,500 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | $ 13,100 |  |
Increase in weighted average shares due to dilutive effect of unexercised capital stock options, unvested restricted stock awards and unvested restricted stock units | 0.8 |  |
Unexercised capital stock options, restricted stock units and restricted stock awards excluded from computation of diluted EPS | 1.4 |  |
Conditions of Shipment are Considered to Have Occurred Unless Written Notice of Objection is Received | 10 |  |
Termination of Warranty | 30 |  |
Research and Development Expense | $ 38,000 | 39,400 | 45,100
Currency Transaction Gain (Loss), before Tax | $ (6,700) | $ 1,600 | $ 1,700
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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