Segment Information (Summary Of Revenue By Segment And Reconciling Items) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Revenues		$ 2,606,572	$ 2,340,196	$ 2,066,737
Operating Income (Loss)		579,263	541,831	425,798
Amortization of acquired intangible assets		74,938	46,383	46,578
Restructuring expenses		9,401	18,432	12,358
Acquisition related expenses		6,123		10,076
Litigation settlement expenses		41,199		8,500
Interest income		(2,299)	(16,378)	(17,085)
Interest expense		36,156	28,355	28,236
Loss attributable to equity method investments		(15,833)
Other, net		(10,726)	(8,542)	4,096
Income before income taxes		518,847	521,312	$ 418,743
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)		841,000	711,500
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Deferred revenue fair value adjustment	[1]	(5,300)
Corporate costs		124,900	104,900
Amortization of acquired intangible assets		74,900	46,400
Restructuring expenses		9,400	18,400
Acquisition related expenses		6,100
Litigation settlement expenses		41,200
Deferred revenue fair value adjustment	[1]	5,300
Interest income		(2,300)	(16,400)
Interest expense		36,200	28,400
Loss attributable to equity method investments		15,800
Other, net		10,700	8,500
Income before income taxes		518,800	521,300
Total Sleep And Respiratory Care [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)		766,100	656,300
Total Sleep And Respiratory Care [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues		2,330,800	2,183,200
Software As A Service Before Deferred Revenue Adjustment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues		281,100	157,000
Software As A Service [Member]
Segment Reporting Information [Line Items]
Deferred revenue fair value adjustment	[1]	(5,300)
Operating Income (Loss)		74,900	55,200
Deferred revenue fair value adjustment	[1]	5,300
Software As A Service [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues		$ 275,800	$ 157,000

[1] The deferred revenue fair value adjustment is a purchase price accounting adjustment related to MatrixCare which was acquired on November 13, 2018.