Income Taxes (Movement In Valuation Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	$ 38,967	$ 38,834
Reversed to statement of operations	(32,634)	(4,302)
Charged to statement of operations	9,582	4,684
Utilized	60
Change in tax laws	(894)
Foreign currency adjustment	976	(249)
Valuation Allowances, Balance, Ending Balance	16,057	38,967
Foreign Tax Credits [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	32,574	36,748
Reversed to statement of operations	(32,634)	(4,174)
Charged to statement of operations	10
Utilized	60
Change in tax laws
Foreign currency adjustment
Valuation Allowances, Balance, Ending Balance	10	32,574
Net Operating Loss Carry-forwards [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	3,699	931
Reversed to statement of operations		(128)
Charged to statement of operations	971	3,107
Utilized
Change in tax laws	(263)
Foreign currency adjustment	1,038	(211)
Valuation Allowances, Balance, Ending Balance	5,445	3,699
FTS Patent [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	120	158
Reversed to statement of operations
Charged to statement of operations
Utilized
Change in tax laws
Foreign currency adjustment	(63)	(38)
Valuation Allowances, Balance, Ending Balance	57	120
Other [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances, Balance, Beginning Balance	2,574	997
Reversed to statement of operations
Charged to statement of operations	8,601	1,577
Utilized
Change in tax laws	(631)
Foreign currency adjustment	1
Valuation Allowances, Balance, Ending Balance	$ 10,545	$ 2,574