Summary Of Significant Accounting Policies (Summary Of Net Revenue Disaggregated By Product And Region) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net revenue	$ 751,944	$ 681,056
Software As A Service [Member]
Disaggregation of Revenue [Line Items]
Net revenue	92,143	86,855
U.S., Canada And Latin America [Member]
Disaggregation of Revenue [Line Items]
Net revenue	495,296	457,183
U.S., Canada And Latin America [Member] | Devices [Member]
Disaggregation of Revenue [Line Items]
Net revenue	197,393	186,887
U.S., Canada And Latin America [Member] | Masks And Other [Member]
Disaggregation of Revenue [Line Items]
Net revenue	205,760	183,441
U.S., Canada And Latin America [Member] | Sleep And Respiratory Care [Member]
Disaggregation of Revenue [Line Items]
Net revenue	403,153	370,328
U.S., Canada And Latin America [Member] | Software As A Service [Member]
Disaggregation of Revenue [Line Items]
Net revenue	92,143	86,855
Combined Europe, Asia And Other Markets [Member] | Devices [Member]
Disaggregation of Revenue [Line Items]
Net revenue	176,026	151,925
Combined Europe, Asia And Other Markets [Member] | Masks And Other [Member]
Disaggregation of Revenue [Line Items]
Net revenue	80,622	71,948
Combined Europe, Asia And Other Markets [Member] | Sleep And Respiratory Care [Member]
Disaggregation of Revenue [Line Items]
Net revenue	256,648	223,873
Global [Member]
Disaggregation of Revenue [Line Items]
Net revenue	751,944	681,056
Global [Member] | Devices [Member]
Disaggregation of Revenue [Line Items]
Net revenue	373,419	338,812
Global [Member] | Masks And Other [Member]
Disaggregation of Revenue [Line Items]
Net revenue	286,382	255,389
Global [Member] | Sleep And Respiratory Care [Member]
Disaggregation of Revenue [Line Items]
Net revenue	659,801	594,201
Global [Member] | Software As A Service [Member]
Disaggregation of Revenue [Line Items]
Net revenue	$ 92,143	$ 86,855