Supplemental Cash Flow Information (Schedule Of Disaggregation Of Cash, Cash Equivalents And Restricted Cash) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019		Dec. 31, 2018	[1]	Jun. 30, 2018	[1]
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 209,290		$ 46,065	$ 48,757
Restricted cash	51,370		75,446	74,181
Cash, cash equivalents and restricted cash	260,660	$ 135,079	121,511	122,938	[1]	$ 133,041		$ 90,054
Continuing [Member]
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	209,290		20,014	33,641
Discontinued [Member]
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 0		$ 26,051	$ 15,116

[1] Refer to Note 1