Reinsurance Assets And Policyholder Liabilities Under Insurance And Investment Contracts (Summary Of Movement In Assets And Policyholder Liabilities Under Investment Contracts) (Details) $ in Thousands	9 Months Ended
	Mar. 31, 2018 USD ($)
Reinsurance Assets And Policyholder Liabilities Under Insurance And Investment Contracts [Abstract]
Assets, Beginning Balance	$ 627	[1]
Assets, Increase in policyholder benefits under investment contracts	9	[1]
Assets, Foreign currency adjustment	65	[1],[2]
Assets, Ending Balance	701	[1]
Investment contracts, Beginning Balance	(627)	[3]
Investment contracts, Increase in policy holder benefits under investment contracts	(9)	[3]
Investment contracts, Foreign currency adjustment	(65)	[2],[3]
Investment contracts, Ending Balance	$ (701)	[3]

[1] Included in other long-term assets.

[2] Represents the effects of the fluctuations between the ZAR against the U.S. dollar.

[3] Included in other long-term liabilities.