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Reinsurance Assets And Policyholder Liabilities Under Insurance And Investment Contracts (Summary Of Movement In Assets And Policyholder Liabilities Under Investment Contracts) (Details)
$ in Thousands
 3 Months Ended
Sep. 30, 2018
USD ($)
Reinsurance Assets And Policyholder Liabilities Under Insurance And Investment Contracts [Abstract]  
Assets, Beginning Balance $ 610 [1]
Assets, Increase in policyholder benefits under investment contracts 6 [1]
Assets, Foreign currency adjustment (18) [1],[2]
Assets, Ending Balance 598 [1]
Investment contracts, Beginning Balance (610) [3]
Investment contracts, Increase in policy holder benefits under investment contracts (6) [3]
Investment contracts, Foreign currency adjustment 18 [2],[3]
Investment contracts, Ending Balance $ (598) [3]
[1] Included in other long-term assets.
[2] Represents the effects of the fluctuations between the ZAR and the U.S. dollar.
[3] Included in other long-term liabilities.