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Supplemental Cash Flow Information (Schedule Of Supplemental Cash Flow Disclosures) (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Supplemental Cash Flow Information [Abstract]    
Cash received from interest $ 382 $ 495
Cash paid for interest 804 908
Cash paid for income taxes $ 11 $ 15,406