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Lease Accounting (Maturity of Lessor Receipts) (Details) - Onshore Facilities and Transportation
$ in Thousands
Sep. 30, 2020
USD ($)
Lessor, Lease, Description [Line Items]  
Remainder of 2020 $ 300
2021 1,200
2022 1,200
2023 1,200
2024 1,200
Thereafter 4,100
Total Lease Receipts $ 9,200