Acquisitions, Dispositions And Discontinued Operations ((Summary Of Fair Value Of DNI Intangible Assets Acquired And Weighted-Average Amortization Period) (Details) - DNI [Member] $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($)
Customer Relationships [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Fair value as of acquisition date, finite lived intangible assets	$ 97,255
Customer Relationships [Member] | Maximum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period (in years)	15 years
Customer Relationships [Member] | Minimum [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Weighted-average amortization period (in years)	5 years
Software And Unpatented Technology [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Fair value as of acquisition date, finite lived intangible assets	$ 2,609
Weighted-average amortization period (in years)	5 years
Trademarks [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Fair value as of acquisition date, finite lived intangible assets	$ 4,139
Weighted-average amortization period (in years)	5 years