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Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($)	Sep. 30, 2015	Feb. 28, 2015	Dec. 31, 2014	Apr. 30, 2014
Debt Instrument [Line Items]
Long-term debt	$ 2,075,904,000		$ 2,026,902,000
Partnership's 6% senior notes due 2021 | Exterran Partners, L.P.
Debt Instrument [Line Items]
Long-term debt	$ 345,982,000		$ 345,528,000
Interest rate (as a percent)	6.00%		6.00%
Amount of unamortized discount of notes	$ 4,000,000		$ 4,500,000
Partnership's 6% senior notes due 2022 | Exterran Partners, L.P.
Debt Instrument [Line Items]
Long-term debt	$ 345,184,000		$ 344,767,000
Interest rate (as a percent)	6.00%		6.00%	6.00%
Amount of unamortized discount of notes	$ 4,800,000		$ 5,200,000	$ 5,700,000
7.25% senior notes due December 2018
Debt Instrument [Line Items]
Long-term debt	$ 350,000,000		$ 350,000,000
Interest rate (as a percent)	7.25%		7.25%
Other, interest at various rates, collateralized by equipment and other assets
Debt Instrument [Line Items]
Long-term debt	$ 738,000		$ 1,107,000
Revolving credit facility due July 2017
Debt Instrument [Line Items]
Long-term debt	330,000,000		375,500,000
Partnership’s revolving credit facility due May 2018 | Exterran Partners, L.P.
Debt Instrument [Line Items]
Long-term debt	554,000,000		460,000,000
Partnership’s term loan facility due May 2018 | Exterran Partners, L.P.
Debt Instrument [Line Items]
Long-term debt	$ 150,000,000	$ 150,000,000.0	$ 150,000,000

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- Definition

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

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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