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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Jul. 01, 2019 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Nov. 30, 2010
Summary Of Accounting Policies [Line Items] |  |  |  |  |
Amount capitalized for deferred software costs related to cloud computing arrangements |  | $ 1.7 |  |  |
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) |  | 1,354,423 |  |  |
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 |  |  |
Accounting Standards Update 2016-02 [Member] | Scenario, Forecast [Member] | Minimum [Member] |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |
Expected impact of adopting new lease accounting guidance, lease liability and related right-of-use asset | $ 30.0 |  |  |  |
Accounting Standards Update 2016-02 [Member] | Scenario, Forecast [Member] | Maximum [Member] |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |
Expected impact of adopting new lease accounting guidance, lease liability and related right-of-use asset | $ 40.0 |  |  |  |

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