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Partners' Capital and Distributions - Noncontrolling Interests in Subsidiaries (Details) - SLC Pipeline LLC	3 Months Ended
	Dec. 31, 2018
Partners Capital and Distribution [Line Items]
Ownership percentage sold	75.00%
Noncontrolling interests in subsidiaries derecognized upon sale	25.00%

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- Definition

Consolidated Subsidiary, Ownership Percentage Sold

+ References

No definition available.

+ Details

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X

- Definition

Noncontrolling Interest in Consolidated Subsidiary, Percentage Derecognized Upon Sale

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Details

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