Supplemental Cash Flow Information (Schedule Of Supplemental Cash Flow Disclosures) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Supplemental Cash Flow Information [Abstract]
Cash received from interest	$ 714	$ 1,042	$ 1,209	$ 1,779
Cash paid for interest	636	2,293	1,544	3,107
Cash paid for income taxes	$ 765	$ 2,004	$ 16,171	$ 3,887