Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jul. 01, 2019	Nov. 30, 2010
Summary Of Accounting Policies [Line Items]
Amount capitalized for deferred software costs related to cloud computing arrangements	$ 10,300	$ 1,700
Preferred stock, shares authorized (in shares)	3,050,000	3,050,000
Shares authorized for repurchase (in shares)					2,000,000
Shares remaining authorized for future purchase (in shares)	1,315,911
Operating lease liability	$ 24,659			$ 33,500
Operating lease right-of-use assets	$ 22,977	$ 0		$ 31,700
Maximum [Member]
Summary Of Accounting Policies [Line Items]
Research and development costs as a percentage of net sales	1.00%	1.00%	1.00%
Class A Participating Preferred Stock[Member]
Summary Of Accounting Policies [Line Items]
Preferred stock, shares authorized (in shares)	750,000
Preferred stock, par value (in dollars per share)	$ 1.00
Class B Voting Preferred Stock[Member]
Summary Of Accounting Policies [Line Items]
Preferred stock, shares authorized (in shares)	1,150,000
Preferred stock, par value (in dollars per share)	$ 0
Class C Nonvoting Preferred Stock [Member]
Summary Of Accounting Policies [Line Items]
Preferred stock, shares authorized (in shares)	1,150,000
Preferred stock, par value (in dollars per share)	$ 0
Buildings And Improvements [Member] | Minimum [Member]
Summary Of Accounting Policies [Line Items]
Estimated useful life (in years)	10 years
Buildings And Improvements [Member] | Maximum [Member]
Summary Of Accounting Policies [Line Items]
Estimated useful life (in years)	40 years
Machinery And Equipment [Member] | Minimum [Member]
Summary Of Accounting Policies [Line Items]
Estimated useful life (in years)	3 years
Machinery And Equipment [Member] | Maximum [Member]
Summary Of Accounting Policies [Line Items]
Estimated useful life (in years)	15 years
Technology-Related Equipment [Member] | Minimum [Member]
Summary Of Accounting Policies [Line Items]
Estimated useful life (in years)	3 years
Technology-Related Equipment [Member] | Maximum [Member]
Summary Of Accounting Policies [Line Items]
Estimated useful life (in years)	5 years