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, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Net revenue by segment	$ 1,033,744	$ 894,874	$ 1,984,038	$ 1,798,890
Total Sleep and Respiratory Care
Disaggregation of Revenue [Line Items]
Net revenue by segment	916,981	795,840	1,761,424	1,602,339
Software as a Service
Disaggregation of Revenue [Line Items]
Net revenue by segment	116,763	99,034	222,614	196,551
U.S., Canada and Latin America
Disaggregation of Revenue [Line Items]
Net revenue by segment	615,258	486,807	1,193,363	977,846
U.S., Canada and Latin America | Devices
Disaggregation of Revenue [Line Items]
Net revenue by segment	345,525	244,775	685,070	520,707
U.S., Canada and Latin America | Masks and other
Disaggregation of Revenue [Line Items]
Net revenue by segment	269,733	242,032	508,293	457,139
Combined Europe, Asia and other markets
Disaggregation of Revenue [Line Items]
Net revenue by segment	301,723	309,033	568,061	624,493
Combined Europe, Asia and other markets | Devices
Disaggregation of Revenue [Line Items]
Net revenue by segment	197,275	207,736	375,305	425,961
Combined Europe, Asia and other markets | Masks and other
Disaggregation of Revenue [Line Items]
Net revenue by segment	104,448	101,297	192,756	198,532
Global revenue
Disaggregation of Revenue [Line Items]
Net revenue by segment	1,033,744	894,874	1,984,038	1,798,890
Global revenue | Devices
Disaggregation of Revenue [Line Items]
Net revenue by segment	542,800	452,511	1,060,375	946,668
Global revenue | Masks and other
Disaggregation of Revenue [Line Items]
Net revenue by segment	374,181	343,329	701,049	655,671
Global revenue | Total Sleep and Respiratory Care
Disaggregation of Revenue [Line Items]
Net revenue by segment	916,981	795,840	1,761,424	1,602,339
Global revenue | Software as a Service
Disaggregation of Revenue [Line Items]
Net revenue by segment	$ 116,763	$ 99,034	$ 222,614	$ 196,551