Annual report pursuant to Section 13 and 15(d)

Real Estate - Narrative (Details)

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Real Estate - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
a
$ / a
Dec. 31, 2020
USD ($)
a
$ / a
Dec. 31, 2019
USD ($)
a
$ / a
Real Estate Properties [Line Items]      
Revenue $ 450,958 $ 302,564 $ 490,496
Texas      
Real Estate Properties [Line Items]      
Area of real estate property, sold (in acres) | a 30 22,160 21,986
Proceeds from sale of real estate $ 700    
Average sales price (in USD per acre) | $ / a 25,000    
Acres of land exchanged from trust (in acres) | a     5,620
Acres of land received from exchange (in acres) | a     5,545
Additions (acres) | a 88 756 21,671
Land sales and other operating revenue | Texas      
Real Estate Properties [Line Items]      
Proceeds from sale of real estate   $ 16,000 $ 113,000
Average sales price (in USD per acre) | $ / a   721 5,141
Revenue   $ 1,400 $ 22,000
Land acquisitions | Texas      
Real Estate Properties [Line Items]      
Additions $ 500 $ 3,900 $ 74,400
Average purchase price (in USD per acre) | $ / a 6,086 5,134 3,434