Long-Term Debt - 2019 Mortgage Facility (Details)  | 
 Jun. 30, 2021  
$ / shares 
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| 2019 Mortgage Facility [Member] | |
| Debt Instrument [Line Items] | |
| Maximum dividend (usd per share) | $ 0.12 | 
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- References No definition available. 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Details 
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