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Summary of Significant Accounting Policies - Goodwill (Details) $ in Millions |  | 9 Months Ended |
--- | --- | --- | ---
Apr. 02, 2021 reporting_unit | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($)
Goodwill [Line Items] |  |  |
Number of reporting units | reporting_unit | 2 |  |
Kansas Properties |  |  |
Goodwill [Line Items] |  |  |
Disposal group, fair value |  |  | $ 3.5
Goodwill impairment |  | $ 18.5 |

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