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Employee Benefits Plans Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan [Member] - $ / shares shares in Thousands | 12 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Employee Stock Purchase Plan, Purchase Price of Common Stock, Percent of Closing Price | 85.00% |  |
Shares issued for Employee Stock Purchase Plan (shares) | 74 | 76 | 76
Employee stock purchase plan, average price per share | $ 132.51 | $ 118.32 | $ 98.46
Common Stock, Capital Shares Reserved for Future Issuance | 1,230 |  |

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