Property, Plant And Equipment, Net (Components Of Property, Plant And Equipment) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 898,975	$ 860,864
Accumulated depreciation and amortization	(511,515)	(474,314)
Property, plant and equipment, net	387,460	386,550
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	262,010	239,671
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	173,895	155,069
Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	51,942	51,045
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,477	7,399
Clinical, Demonstration And Rental Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	94,007	92,229
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	34,210	32,169
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	52,406	54,089
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 223,028	$ 229,193