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Real Estate Activity (Tables)
 3 Months Ended
Mar. 31, 2020
Real Estate [Abstract]  
Schedule of Real Estate Properties
As of March 31, 2020 and December 31, 2019, the Trust owned the following land and real estate (in thousands, except number of acres):

March 31,
2020		December 31,
2019
Number of AcresNet Book ValueNumber of AcresNet Book Value
Land (surface rights)849,826  $—  849,856  $—  
Real estate acquired52,687  110,965  51,931  107,075  
Total real estate situated in 19 counties in Texas
902,513  $110,965  901,787  $107,075