Summary Of Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
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	$ 31,300	$ 32,100
Amortization	14,668	$ 16,578	$ 20,762
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	14,100
Finite-Lived Intangible Assets, Amortization Expense, Year Two	13,900
Finite-Lived Intangible Assets, Amortization Expense, Year Three	13,500
Finite-Lived Intangible Assets, Amortization Expense, Year Four	13,100
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 12,900
Increase in weighted average shares due to dilutive effect of unexercised capital stock options, unvested restricted stock awards and unvested restricted stock units	1.2	0.8
Unexercised capital stock options, restricted stock units and restricted stock awards excluded from computation of diluted EPS	0.4	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	$ 38,900	$ 38,000	39,400
Currency Transaction Gain (Loss), before Tax	$ (6,400)	$ (6,700)	$ 1,600
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