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Long-Term Debt - The Partnership Asset-Based Revolving Credit Facility (Details)		3 Months Ended		9 Months Ended
	Mar. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Line of Credit Facility
Repayments of long-term debt				$ 1,118,000,000	$ 496,000,000
Amortized deferred financing cost	$ 600,000
Loss on extinguishment of debt	300,000
Long-term debt		$ 1,392,947,000		1,392,947,000		$ 1,441,724,000
Change in borrowing capacity	250,000,000
Revolving Credit Facility
Line of Credit Facility
Repayments of long-term debt	648,400,000
Change in borrowing capacity	$ 25,000,000
Revolving Credit Facility | Exterran Partners, L.P.
Line of Credit Facility
Maximum consolidated cash balance		50,000,000.0		50,000,000.0
Undrawn capacity under revolving credit facility		468,500,000		$ 468,500,000
Revolving Credit Facility | Minimum
Line of Credit Facility
Line of credit facility, commitment fee (percentage)				0.375%
Revolving Credit Facility | Maximum
Line of Credit Facility
Line of credit facility, commitment fee (percentage)				0.50%
Revolving Credit Facility | Maximum | Exterran Partners, L.P.
Line of Credit Facility
Undrawn capacity under revolving credit facility		213,600,000		$ 213,600,000
Revolving Credit Facility | Partnership’s revolving credit facility due March 2022
Line of Credit Facility
Debt instrument, expiration period	5 years
Revolving credit facility borrowing capacity	$ 1,100,000,000.0
Interest rate (as a percent)	6.00%
Debt issuance cost	$ 14,900,000
Long term debt		631,500,000		631,500,000
Outstanding letter of credit		0		0
Long-term debt		631,500,000		631,500,000		0
Revolving Credit Facility | Revolving Credit Facility Due May2018
Line of Credit Facility
Repayments of long-term debt	825,000,000
Revolving Credit Facility | Term Loan Facility Due May2018
Line of Credit Facility
Repayments of long-term debt	150,000,000
Revolving Credit Facility | Partnership’s revolving credit facility due May 2018
Line of Credit Facility
Long-term debt		0		0		$ 509,500,000
Commitment fee amount		$ 600,000	$ 300,000	$ 1,500,000	$ 1,000,000
Swing Line
Line of Credit Facility
Change in borrowing capacity	$ 50,000,000
Line of Credit | Base Rate
Line of Credit Facility
Debt instrument, variable rate				3.24%
Line of Credit | Federal Funds Rate
Line of Credit Facility
Debt instrument, interest margin added to variable rate				0.005
Line of Credit | One-month LIBOR
Line of Credit Facility
Debt instrument, interest margin added to variable rate				0.01
Line of Credit | Minimum | LIBOR
Line of Credit Facility
Debt instrument, variable rate				2.00%
Line of Credit | Minimum | Base Rate
Line of Credit Facility
Debt instrument, variable rate				1.00%
Line of Credit | Maximum | LIBOR
Line of Credit Facility
Debt instrument, variable rate				3.25%
Line of Credit | Maximum | Base Rate
Line of Credit Facility
Debt instrument, variable rate				2.25%

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Contractual interest rate for funds borrowed, under the debt agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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