Restructuring Expenses (Narrative) (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring expenses		$ 0
Restructuring expenses	$ 8,673,000		$ 9,401,000
Reorganization, Rationalization, And Relocation Of R&D And SaaS Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			9,400,000
RL			$ 5,400,000
Portable Oxygen Concentrator Business Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	13,900,000
Inventory write-downs	5,200,000
Accelerated amortization	5,100,000
Asset impairments	2,300,000
Employee-related costs	700,000
Contract cancellation costs	600,000
Cost of sales	5,200,000
Restructuring expenses	$ 8,700,000