Income Taxes (Movement In Valuation Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	$ 118,777	$ 106,433
Charged to statement of operations	8,119	16,376
Reversed to statement of operations	(301)	(14,840)
Utilized	(1)	(1,422)
Foreign currency adjustment	(9,493)	12,230
Valuation Allowances, Balance, Ending Balance	117,101	118,777
Capital Losses Related To Investments [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	47,518	36,721
Charged to statement of operations	195	3,532
Reversed to statement of operations	0	0
Utilized	0	0
Foreign currency adjustment	(5,126)	7,265
Valuation Allowances, Balance, Ending Balance	42,587	47,518
Net Operating Loss Carry-forwards [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	36,270	32,273
Charged to statement of operations	7,647	13,264
Reversed to statement of operations	(167)	(13,687)
Utilized	(1)	(135)
Foreign currency adjustment	(4,097)	4,555
Valuation Allowances, Balance, Ending Balance	39,652	36,270
Foreign Tax Credits [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	32,737	32,799
Charged to statement of operations	0	0
Reversed to statement of operations	(66)	(62)
Utilized	0	0
Foreign currency adjustment	0	0
Valuation Allowances, Balance, Ending Balance	32,671	32,737
Other [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	2,252	4,640
Charged to statement of operations	277	(420)
Reversed to statement of operations	(68)	(1,091)
Utilized	0	(1,287)
Foreign currency adjustment	(270)	410
Valuation Allowances, Balance, Ending Balance	$ 2,191	$ 2,252