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Nonmonetary Transactions (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Nonmonetary Transactions [Abstract]      
Carrying value of properties exchanged $ 4.7 $ 6.5 $ 73.4
Basis of Accounting for Assets Transferred carryover carryover carryover
Gain (Loss) Recognized on Transfer $ 0.0 $ 0.0 $ 0.0