Basis Of Presentation And Summary Of Significant Accounting Policies (Impact Of Restatement On Statement Of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019		Mar. 31, 2020	Mar. 31, 2019
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Net loss	$ (34,881)	$ (59,547)	[1]	$ (39,478)	$ (125,620)	[1]
Loss on disposal of discontinued operation, net of tax	$ (12,733)	9,175	[1]	$ (12,733)	9,175	[1]
DNI Discontinued Operations Presentation [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Net loss		(59,547)			(125,620)
DNI Discontinued Operations Presentation [Member] | Scenario Previously Reported [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Net loss		(55,512)			(121,585)
Loss on disposal of discontinued operation, net of tax		5,140			5,140
DNI Discontinued Operations Presentation [Member] | Restatement Adjustment [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Net loss		(4,035)			(4,035)
Loss on disposal of discontinued operation, net of tax		$ 4,035			$ 4,035

[1] Refer to Note 1