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Nonmonetary Transactions (Details)
3 Months Ended
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
a
Nonmonetary Transactions [Abstract]    
Net acres exchanged | a   2,000
Carrying value of properties exchanged $ 0 $ 65,788,000
Basis of accounting for assets exchanged   carryover
Gain (loss) recognized on trade   $ 0