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Supplemental Cash Flow Information (Schedule Of Supplemental Cash Flow Disclosures) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Supplemental Cash Flow Information [Abstract]        
Cash received from interest $ 4,561 $ 5,265 $ 14,409 $ 14,600
Cash paid for interest 2,298 435 6,716 2,007
Cash paid for income taxes $ 2,276 $ 3,631 $ 22,925 $ 27,698