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Organization and Basis of Presentation (Details)
3 Months Ended 12 Months Ended
Sep. 30, 2017
agreement
Dec. 31, 2019
segment
state
Dec. 31, 2018
segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Number of states in which entity operates | state   48  
Number of asset purchase and sales agreements with three unaffiliated parties | agreement 3    
Number of operating segments     3
Number of reportable segments   3