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Long-Term Debt (Details 4) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013
Long-Term Debt
Proceeds from borrowings of long-term debt	$ 2,240,299,000us-gaap_ProceedsFromIssuanceOfLongTermDebt	$ 2,108,037,000us-gaap_ProceedsFromIssuanceOfLongTermDebt	$ 1,878,000,000us-gaap_ProceedsFromIssuanceOfLongTermDebt
Amortization of debt discount	12,380,000us-gaap_AmortizationOfDebtDiscountPremium	23,407,000us-gaap_AmortizationOfDebtDiscountPremium	20,523,000us-gaap_AmortizationOfDebtDiscountPremium
Exterran Partners, L.P.
Long-Term Debt
Amount of unamortized discount of notes	9,700,000us-gaap_DebtInstrumentUnamortizedDiscount / dei_LegalEntityAxis = exh_ExterranPartnersLPMember
Partnership's 6% senior notes due 2021 | Exterran Partners, L.P.
Long-Term Debt
Principle amount of senior notes				350,000,000us-gaap_DebtInstrumentFaceAmount / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Interest rate (as a percent)	6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member	6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member		6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Proceeds from borrowings of long-term debt				336,900,000us-gaap_ProceedsFromIssuanceOfLongTermDebt / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Transaction costs		7,800,000us-gaap_DebtIssuanceCosts / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Amount of unamortized discount of notes	4,500,000us-gaap_DebtInstrumentUnamortizedDiscount / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member	5,000,000us-gaap_DebtInstrumentUnamortizedDiscount / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member		5,500,000us-gaap_DebtInstrumentUnamortizedDiscount / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Effective interest rate (as a percent)	6.25%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Amortization of debt discount	$ 500,000us-gaap_AmortizationOfDebtDiscountPremium / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member	$ 400,000us-gaap_AmortizationOfDebtDiscountPremium / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Partnership's 6% senior notes due 2021 | Prior to April 1, 2016 | Exterran Partners, L.P.
Long-Term Debt
Maximum percentage of the aggregate principal amount of debt instruments that may be redeemed				35.00%exh_LongTermDebtRedemptionWithNetProceedsFromEquityOfferingsAsPercentageOfPrincipalAmountMaximum / us-gaap_DebtInstrumentRedemptionPeriodAxis = exh_DebtInstrumentRedemptionPeriodPriorTo01April2016Member / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Number of equity offerings				1exh_LongTermDebtRedemptionWithNetProceedsFromPublicAndPrivateEquityOfferingsNumberOfOfferingsMinimum / us-gaap_DebtInstrumentRedemptionPeriodAxis = exh_DebtInstrumentRedemptionPeriodPriorTo01April2016Member / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Redemption price as percentage of principal amount				106.00%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentRedemptionPeriodAxis = exh_DebtInstrumentRedemptionPeriodPriorTo01April2016Member / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Minimum notes remaining outstanding if notes redeemed prior to 2016 (as a percent)				65.00%exh_LongTermDebtNotesToRemainOutstandingAsPercentageOfPrincipalAmountMinimum / us-gaap_DebtInstrumentRedemptionPeriodAxis = exh_DebtInstrumentRedemptionPeriodPriorTo01April2016Member / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Maximum number of days within which the entity may redeem a percentage of the note following the date of the closing of equity offering				180 days
Partnership's 6% senior notes due 2021 | Twelve month period beginning April 1, 2017 | Exterran Partners, L.P.
Long-Term Debt
Redemption price as percentage of principal amount				103.00%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentRedemptionPeriodAxis = exh_DebtInstrumentTwelveMonthRedemptionPeriodBeginning01April2017Member / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Partnership's 6% senior notes due 2021 | Twelve month period beginning April 1, 2018 | Exterran Partners, L.P.
Long-Term Debt
Redemption price as percentage of principal amount				101.50%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentRedemptionPeriodAxis = exh_DebtInstrumentTwelveMonthRedemptionPeriodBeginning01April2018Member / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member
Partnership's 6% senior notes due 2021 | Beginning April 1, 2019 and thereafter | Exterran Partners, L.P.
Long-Term Debt
Redemption price as percentage of principal amount				100.00%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentRedemptionPeriodAxis = exh_DebtInstrumentRedemptionPeriodFrom01April2019AndThereafterMember / dei_LegalEntityAxis = exh_ExterranPartnersLPMember / us-gaap_LongtermDebtTypeAxis = exh_PartnershipsSeniorNotesDue2021Member

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- Definition

Represents the maximum period of time within which the entity may redeem a percentage of the note with net proceeds of public or private equity offering following the date of the closing of such equity offering.

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Represents the minimum notes to remain outstanding expressed as a percentage of the principle amount if notes are redeemed before a specified date.

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Represents the maximum percentage of the aggregate principal amount of debt instruments that may be redeemed with net proceeds of equity offerings prior to specified date.

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Represents the minimum number of equity offerings that may provide proceeds to redeem debt instruments.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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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 debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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-Glossary Financing Activities

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