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Equity Method Investments	9 Months Ended
Equity Method Investments	Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments We have a 20% ownership interest in Independence Hub that we account for using the equity method of accounting. Independence Hub owns the “Independence Hub” platform, which is nearing completion of its decommissioning. The remaining liability balances for our share of Independence Hub’s estimated obligations, net of remaining working capital, were $1.9 million at September 30, 2020 and $4.1 million at December 31, 2019.