Summary Of Significant Accounting Policies (Summary Of Net Revenue Disaggregated By Product And Region) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net revenue	$ 894,874	$ 800,011	$ 1,798,890	$ 1,551,955
Sleep And Respiratory Care Products [Member]
Disaggregation of Revenue [Line Items]
Net revenue	795,840	708,178	1,602,339	1,367,979
Software As A Service [Member]
Disaggregation of Revenue [Line Items]
Net revenue	99,034	91,833	196,551	183,976
U.S., Canada And Latin America [Member]
Disaggregation of Revenue [Line Items]
Net revenue	585,841	518,594	1,174,397	1,013,890
U.S., Canada And Latin America [Member] | Devices [Member]
Disaggregation of Revenue [Line Items]
Net revenue	244,775	204,997	520,707	402,390
U.S., Canada And Latin America [Member] | Masks And Other [Member]
Disaggregation of Revenue [Line Items]
Net revenue	242,032	221,764	457,139	427,524
U.S., Canada And Latin America [Member] | Sleep And Respiratory Care Products [Member]
Disaggregation of Revenue [Line Items]
Net revenue	486,807	426,761	977,846	829,914
U.S., Canada And Latin America [Member] | Software As A Service [Member]
Disaggregation of Revenue [Line Items]
Net revenue	99,034	91,833	196,551	183,976
Combined Europe, Asia And Other Markets [Member] | Devices [Member]
Disaggregation of Revenue [Line Items]
Net revenue	207,736	187,992	425,961	364,018
Combined Europe, Asia And Other Markets [Member] | Masks And Other [Member]
Disaggregation of Revenue [Line Items]
Net revenue	101,297	93,425	198,532	174,047
Combined Europe, Asia And Other Markets [Member] | Sleep And Respiratory Care Products [Member]
Disaggregation of Revenue [Line Items]
Net revenue	309,033	281,417	624,493	538,065
Global [Member]
Disaggregation of Revenue [Line Items]
Net revenue	894,874	800,011	1,798,890	1,551,955
Global [Member] | Devices [Member]
Disaggregation of Revenue [Line Items]
Net revenue	452,511	392,989	946,668	766,408
Global [Member] | Masks And Other [Member]
Disaggregation of Revenue [Line Items]
Net revenue	343,329	315,189	655,671	601,571
Global [Member] | Sleep And Respiratory Care Products [Member]
Disaggregation of Revenue [Line Items]
Net revenue	795,840	708,178	1,602,339	1,367,979
Global [Member] | Software As A Service [Member]
Disaggregation of Revenue [Line Items]
Net revenue	$ 99,034	$ 91,833	$ 196,551	$ 183,976