Real Estate Activity (Details)  | 
3 Months Ended | |
|---|---|---|
| 
 Mar. 31, 2021  
USD ($) 
 | 
 Mar. 31, 2020  
USD ($)  
a  
$ / a 
 | 
|
| Real Estate [Abstract] | ||
| Proceeds from sale of real estate | $ | $ 0 | $ 900,000 | 
| Area of real estate property, sold (acre) | a | 30 | |
| Average sale price (in dollars per acre) | $ / a | 30,000 | |
| Additions | $ | $ 0 | $ 3,900,000 | 
| Additions (acre) | a | 756 | |
| Average purchase price (in dollars per acre) | $ / a | 5,134 | |
| X | ||||||||||
- Definition Area of Real Estate Property, Additions No definition available. 
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| X | ||||||||||
- Definition Area of Real Estate Property, Sales No definition available. 
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| X | ||||||||||
- Definition Average Purchase Price, Price Per Acre No definition available. 
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| X | ||||||||||
- Definition Average Sale Price, Price Per Acre No definition available. 
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| X | ||||||||||
- Definition Cash received for the sale of real estate that is not part of an investing activity during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Amount of increase in real estate investments from acquisitions other than through foreclosure for entities with a substantial portion of business acquiring and holding investment real estate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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