Segment Information (Schedule Of Revenue By Segment, Product, And Region) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Net revenue	$ 3,196,825	$ 2,957,013	$ 2,606,572
U.S., Canada And Latin America [Member]
Net revenue	2,078,703	1,926,959	1,696,285
Global [Member]
Net revenue	3,196,825	2,957,013	2,606,572
Operating Segments [Member] | Devices [Member] | U.S., Canada And Latin America [Member]
Net revenue	863,661	792,766	743,066
Operating Segments [Member] | Devices [Member] | Combined Europe, Asia And Other Markets [Member]
Net revenue	746,379	715,056	618,525
Operating Segments [Member] | Devices [Member] | Global [Member]
Net revenue	1,610,040	1,507,822	1,361,591
Operating Segments [Member] | Masks And Other [Member] | U.S., Canada And Latin America [Member]
Net revenue	841,452	779,561	677,430
Operating Segments [Member] | Masks And Other [Member] | Combined Europe, Asia And Other Markets [Member]
Net revenue	371,743	314,998	291,762
Operating Segments [Member] | Masks And Other [Member] | Global [Member]
Net revenue	1,213,195	1,094,559	969,192
Operating Segments [Member] | Sleep And Respiratory Care [Member]
Net revenue	2,823,235	2,602,381	2,330,783
Operating Segments [Member] | Sleep And Respiratory Care [Member] | U.S., Canada And Latin America [Member]
Net revenue	1,705,113	1,572,327	1,420,496
Operating Segments [Member] | Sleep And Respiratory Care [Member] | Combined Europe, Asia And Other Markets [Member]
Net revenue	1,118,122	1,030,054	910,287
Operating Segments [Member] | Sleep And Respiratory Care [Member] | Global [Member]
Net revenue	2,823,235	2,602,381	2,330,783
Operating Segments [Member] | Software As A Service [Member]
Net revenue	373,590	354,632	275,789
Operating Segments [Member] | Software As A Service [Member] | U.S., Canada And Latin America [Member]
Net revenue	373,590	354,632	275,789
Operating Segments [Member] | Software As A Service [Member] | Global [Member]
Net revenue	$ 373,590	$ 354,632	$ 275,789