Archrock Partners (APLP) 10-Q 4 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 28, 2014
Document and Entity Information	'	'
Entity Registrant Name	'EXTERRAN PARTNERS, L.P.	'
Entity Central Index Key	'0001367064	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	55,660,543
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$275	$182
Accounts receivable, trade, net of allowance of $833 and $363, respectively	79,796	52,641
Due from affiliates, net	62	10,548
Total current assets	80,133	63,371
Property, plant and equipment	2,323,081	1,794,545
Accumulated depreciation	-696,879	-647,527
Property, plant and equipment, net	1,626,202	1,147,018
Goodwill	127,757	124,019
Intangible and other assets, net	126,542	33,655
Total assets	1,960,634	1,368,063
Current liabilities:	'	'
Accrued liabilities	7,187	7,255
Accrued interest	21,903	5,940
Current portion of interest rate swaps	5,225	3,374
Total current liabilities	34,315	16,569
Long-term debt	1,220,013	757,955
Deferred income taxes	1,293	1,132
Other long-term liabilities	1,985	652
Total liabilities	1,257,606	776,308
Commitments and contingencies (Note 13)	'	'
Partners' capital:	'	'
Common units, 55,720,897 and 49,465,528 units issued, respectively	686,113	578,493
General partner units, 2% interest with 1,129,221 and 1,003,227 equivalent units issued and outstanding, respectively	19,773	16,780
Accumulated other comprehensive loss	-1,408	-2,353
Treasury units, 60,354 and 50,917 common units, respectively	-1,450	-1,165
Total partners' capital	703,028	591,755
Total liabilities and partners' capital	$1,960,634	$1,368,063

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
CONDENSED CONSOLIDATED BALANCE SHEETS	'	'
Accounts receivable, trade, allowance (in dollars)	$833	$363
Common units, units issued	55,720,897	49,465,528
General partner units, interest (as a percent)	2.00%	2.00%
General partner units, equivalent units issued	1,129,221	1,003,227
General partner units, equivalent units outstanding	1,129,221	1,003,227
Treasury units, common units	60,354	50,917

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues:	'	'	'	'
Revenue - third parties	$153,103	$115,717	$419,645	$346,996
Revenue - affiliates	60	91	258	327
Total revenue	153,163	115,808	419,903	347,323
Costs and expenses:	'	'	'	'
Cost of sales (excluding depreciation and amortization expense) - affiliates	61,852	51,478	174,890	149,339
Depreciation and amortization	33,598	27,158	93,227	76,894
Long-lived asset impairment	3,558	784	8,035	3,249
Restructuring charges	125	'	702	'
Selling, general and administrative - affiliates	20,734	16,948	59,157	44,758
Interest expense	16,141	9,735	40,586	27,458
Other (income) expense, net	-649	-639	88	-8,316
Total costs and expenses	135,359	105,464	376,685	293,382
Income before income taxes	17,804	10,344	43,218	53,941
Provision for (benefit from) income taxes	-299	309	424	1,277
Net income	18,103	10,035	42,794	52,664
General partner interest in net income	3,631	1,911	9,325	5,794
Common units interest in net income	$14,472	$8,124	$33,469	$46,870
Weighted average common units outstanding used in income per common unit:	'	'	'	'
Basic (in units)	55,661	49,409	53,583	47,058
Diluted (in units)	55,663	49,429	53,585	47,072
Income per common unit:	'	'	'	'
Basic (in dollars per unit)	$0.26	$0.16	$0.62	$1
Diluted (in dollars per unit)	$0.26	$0.16	$0.62	$1
Distributions declared and paid per limited partner unit in respective periods (in dollars per unit)	$0.54	$0.52	$1.61	$1.55

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	'	'	'	'
Net income	$18,103	$10,035	$42,794	$52,664
Other comprehensive income (loss):	'	'	'	'
Interest rate swap gain (loss), net of reclassifications to earnings	1,143	-2,256	-1,836	4,362
Amortization of terminated interest rate swaps	916	994	2,781	1,761
Total other comprehensive income (loss)	2,059	-1,262	945	6,123
Comprehensive income	$20,162	$8,773	$43,739	$58,787

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL (USD $)	Total	Treasury Units	Accumulated Other Comprehensive Loss	Partners' Capital Common Units	Partners' Capital General Partner Units
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2012	$439,000	($983)	($10,094)	$436,587	$13,490
Balance (in units) at Dec. 31, 2012	'	'	'	42,313,731	858,583
Balance (in units) at Dec. 31, 2012	'	-43,630	'	'	'
Increase (Decrease) in Partners' Capital	'	'	'	'	'
Issuance of common units for vesting of phantom units (in units)	'	'	'	19,643	'
Treasury units purchased	-91	-91	'	'	'
Treasury units purchased (in units)	'	-3,790	'	'	'
Acquisition of a portion of Exterran Holdings' U.S. contract operations business	161,650	'	'	158,417	3,233
Acquisition of a portion of Exterran Holdings' U.S. contract operations business (in units)	'	'	'	7,123,527	144,644
Transaction costs for registration of units	-68	'	'	-68	'
Contribution of capital, net	28,057	'	'	27,540	517
Excess of purchase price of equipment over Exterran Holdings' cost of equipment	-7,913	'	'	-7,445	-468
Cash distributions	-78,856	'	'	-73,051	-5,805
Unit-based compensation expense	858	'	'	858	'
Interest rate swap gain (loss), net of reclassification to earnings	4,362	'	4,362	'	'
Amortization of terminated interest rate swaps	1,761	'	1,761	'	'
Net income	52,664	'	'	46,870	5,794
Balance at Sep. 30, 2013	601,424	-1,074	-3,971	589,708	16,761
Balance (in units) at Sep. 30, 2013	'	'	'	49,456,901	1,003,227
Balance (in units) at Sep. 30, 2013	'	-47,420	'	'	'
Balance at Dec. 31, 2013	591,755	-1,165	-2,353	578,493	16,780
Balance (in units) at Dec. 31, 2013	'	'	'	49,465,528	1,003,227
Balance (in units) at Dec. 31, 2013	-50,917	-50,917	'	'	'
Increase (Decrease) in Partners' Capital	'	'	'	'	'
Issuance of common units for vesting of phantom units (in units)	'	'	'	45,369	'
Treasury units purchased	-285	-285	'	'	'
Treasury units purchased (in units)	'	-9,437	'	'	'
Net proceeds from issuance of common units	169,471	'	'	169,471	'
Net proceeds from issuance of common units (in units)	'	'	'	6,210,000	'
Proceeds from sale of general partner units to Exterran Holdings	3,573	'	'	'	3,573
Proceeds from sale of general partner units to Exterran Holdings (in units)	'	'	'	'	125,994
Contribution of capital, net	3,377	'	'	3,473	-96
Excess of purchase price of equipment over Exterran Holdings' cost of equipment	-14,338	'	'	-13,581	-757
Cash distributions	-95,581	'	'	-86,529	-9,052
Unit-based compensation expense	1,317	'	'	1,317	'
Interest rate swap gain (loss), net of reclassification to earnings	-1,836	'	-1,836	'	'
Amortization of terminated interest rate swaps	2,781	'	2,781	'	'
Net income	42,794	'	'	33,469	9,325
Balance at Sep. 30, 2014	$703,028	($1,450)	($1,408)	$686,113	$19,773
Balance (in units) at Sep. 30, 2014	'	'	'	55,720,897	1,129,221
Balance (in units) at Sep. 30, 2014	-60,354	-60,354	'	'	'

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income	$42,794	$52,664
Adjustments to reconcile net income to cash provided by operating activities:	'	'
Depreciation and amortization	93,227	76,894
Long-lived asset impairment	8,035	3,249
Amortization of deferred financing costs	2,268	2,355
Amortization of debt discount	760	282
Amortization of terminated interest rate swaps	2,781	1,761
Interest rate swaps	258	295
Unit-based compensation expense	1,322	873
Provision for (benefit from) doubtful accounts	580	-174
Gain on sale of property, plant and equipment	-2,257	-8,798
Changes in assets and liabilities, net of acquisitions:	'	'
Accounts receivable, trade	-27,735	-10,106
Other liabilities	15,132	8,960
Net cash provided by operating activities	137,165	128,255
Cash flows from investing activities:	'	'
Capital expenditures	-209,386	-114,789
Payments for MidCon acquisitions	-483,012	'
Proceeds from sale of property, plant and equipment	5,891	50,567
(Increase) decrease in amounts due from affiliates, net	10,486	-6,045
Net cash used in investing activities	-676,021	-70,267
Cash flows from financing activities:	'	'
Proceeds from borrowings of long-term debt	793,798	923,536
Repayments of long-term debt	-332,500	-884,500
Distributions to unitholders	-95,581	-78,856
Net proceeds from issuance of common units	169,471	'
Net proceeds from sale of general partner units	3,573	'
Payments for debt issuance costs	-6,923	-11,929
Payments for settlement of interest rate swaps that include financing elements	-2,844	-1,271
Purchases of treasury units	-285	-91
Capital contribution from limited partners and general partner	10,240	16,830
Decrease in amounts due to affiliates, net	'	-21,598
Net cash provided by (used in) financing activities	538,949	-57,879
Net increase in cash and cash equivalents	93	109
Cash and cash equivalents at beginning of period	182	142
Cash and cash equivalents at end of period	275	251
Supplemental disclosure of non-cash transactions:	'	'
Non-cash capital contribution from limited and general partner	4,591	18,659
Contract operations equipment acquired/exchanged, net	-11,454	149,030
Intangible assets allocated in contract operations acquisitions	'	3,131
Non-cash capital distribution due to the contract operations acquisitions	'	12,350
Common units issued in contract operations acquisitions	'	170,537
General partner units issued in contract operations acquisitions	'	$3,463

Basis_of_Presentation_and_Summ

Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Basis of Presentation and Summary of Significant Accounting Policies	'
Basis of Presentation and Summary of Significant Accounting Policies	'
	1.  Basis of Presentation and Summary of Significant Accounting Policies
	The accompanying unaudited condensed consolidated financial statements of Exterran Partners, L.P. (“we,” “our,” “us,” or the “Partnership”) included herein have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S.”) (“GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP are not required in these interim financial statements and have been condensed or omitted. Management believes that the information furnished includes all adjustments, consisting only of normal recurring adjustments, that are necessary to present fairly our consolidated financial position, results of operations and cash flows for the periods indicated. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements presented in our Annual Report on Form 10-K for the year ended December 31, 2013. That report contains a more comprehensive summary of our accounting policies. The interim results reported herein are not necessarily indicative of results for a full year.
	Organization
	Exterran General Partner, L.P. is our general partner and an indirect wholly-owned subsidiary of Exterran Holdings, Inc. (individually, and together with its wholly-owned subsidiaries, “Exterran Holdings”). As Exterran General Partner, L.P. is a limited partnership, its general partner, Exterran GP LLC, conducts our business and operations, and the board of directors and officers of Exterran GP LLC, which we refer to herein as our board of directors and our officers, make decisions on our behalf.
	Comprehensive Income (Loss)
	Components of comprehensive income (loss) are net income (loss) and all changes in equity during a period except those resulting from transactions with our limited partners or general partner. Our accumulated other comprehensive income (loss) consists only of derivative financial instruments. Changes in accumulated other comprehensive income (loss) represent changes in the fair value of derivative financial instruments that are designated as cash flow hedges and to the extent the hedge is effective and the amortization of terminated interest rate swaps. See Note 7 for additional disclosures related to comprehensive income (loss).
	Financial Instruments
	Our financial instruments consist of cash, trade receivables, interest rate swaps and debt. At September 30, 2014 and December 31, 2013, the estimated fair values of these financial instruments approximated their carrying amounts as reflected in our condensed consolidated balance sheets. The fair value of our fixed rate debt was estimated based on quoted market yields in inactive markets, which are Level 2 inputs. The fair value of our floating rate debt was estimated using a discounted cash flow analysis based on interest rates offered on loans with similar terms to borrowers of similar credit quality, which are Level 3 inputs. See Note 8 for additional information regarding the fair value hierarchy.
	The following table summarizes the carrying amount and fair value of our debt as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014						December 31, 2013
		Carrying			Fair Value			Carrying			Fair Value
		Amount						Amount
	Fixed rate debt	$	690,013		$	683,000		$	344,955		$	346,000
	Floating rate debt	530,000			531,000			413,000			413,000
	Total debt	$	1,220,013		$	1,214,000		$	757,955		$	759,000
	GAAP requires that all derivative instruments (including certain derivative instruments embedded in other contracts) be recognized in the balance sheet at fair value and that changes in such fair values be recognized in earnings (loss) unless specific hedging criteria are met. Changes in the values of derivatives that meet these hedging criteria will ultimately offset related earnings effects of the hedged item pending recognition in earnings.
	Earnings (Loss) Per Common Unit
	Earnings (loss) per common unit is computed using the two-class method. Under the two-class method, basic earnings (loss) per common unit is determined by dividing net income (loss) allocated to the common units after deducting the amounts allocated to our general partner (including distributions to our general partner on its incentive distribution rights) and participating securities, by the weighted average number of outstanding common units (also referred to as limited partner units) during the period. Participating securities include unvested phantom units with nonforfeitable tandem distribution equivalent rights to receive cash distributions in the quarter in which distributions are paid on common units. During periods of net loss, no effect is given to participating securities because they do not have a contractual obligation to participate in our losses.
	When computing earnings per common unit in periods when distributions are greater than earnings (loss), the amount of the actual incentive distribution rights, if any, is deducted from net income (loss) and allocated to our general partner for the corresponding period. The remaining amount of net income (loss), after deducting distributions to participating securities, is allocated between the general partner and common units based on how our partnership agreement allocates net losses.
	When computing earnings (loss) per common unit in periods when earnings (loss) are greater than distributions, earnings are allocated to the general partner, participating securities and common units based on how our partnership agreement would allocate earnings if the full amount of earnings for the period had been distributed. This allocation of net income (loss) does not impact our total net income (loss), consolidated results of operations or total cash distributions (including actual incentive distribution rights); however, it may result in our general partner being allocated additional incentive distributions for purposes of our earnings (loss) per unit calculation, which could reduce net income per common unit. However, as required by our partnership agreement, we determine cash distributions based on available cash and determine the actual incentive distributions allocable to our general partner based on actual distributions.
	The following table reconciles net income used in the calculation of basic and diluted earnings per common unit (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Net income	$	18,103		$	10,035		$	42,794		$	52,664
	Less: General partner incentive distribution rights	(3,338		)	(1,746		)	(8,647		)	(4,842		)
	Less: General partner 2% ownership interest	(293		)	(165		)	(678		)	(952		)
	Common units interest in net income	14,472			8,124			33,469			46,870
	Less: Net income attributable to participating securities	(50		)	—			(149		)	—
	Net income used in basic and diluted earnings per common unit	$	14,422		$	8,124		$	33,320		$	46,870
	There were no adjustments to net income attributable to common unitholders for the diluted earnings per common unit calculation for the three and nine months ended September 30, 2014 and 2013.
	The following table shows the potential common units that were included in computing diluted earnings per common unit (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Weighted average common units outstanding including participating securities	55,752		49,409		53,664		47,058
	Less: Weighted average participating securities outstanding	(91	)	—		(81	)	—
	Weighted average common units outstanding — used in basic earnings per common unit	55,661		49,409		53,583		47,058
	Net dilutive potential common units issuable:
	Phantom units	2		20		2		14
	Weighted average common units and dilutive potential common units — used in diluted earnings per common unit	55,663		49,429		53,585		47,072

August_2014_MidCon_Acquisition

August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition	9 Months Ended
	Sep. 30, 2014
August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition	'
August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition	'
	2.  August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition
	August 2014 MidCon Acquisition
	On August 8, 2014, we completed an acquisition of natural gas compression assets, including a fleet of 162 compressor units, comprising approximately 110,000 horsepower from MidCon Compression, L.L.C. (“MidCon”) for $130.1 million (the “August 2014 MidCon Acquisition”). The purchase price was funded with borrowings under our revolving credit facility. The majority of the horsepower acquired is under a five-year contract operations services agreement with BHP Billiton Petroleum (“BHP Billiton”) to provide compression services. In connection with the acquisition, the contract operations services agreement with BHP Billiton was assigned to us effective as of the closing. During the nine months ended September 30, 2014, we incurred transaction costs of approximately $0.9 million related to the August 2014 MidCon Acquisition, which is reflected in other (income) expense, net, in our condensed consolidated statements of operations.
	In accordance with the terms of the Purchase and Sale Agreement relating to this acquisition, we directed MidCon to sell a tract of real property and the facility located thereon, a fleet of vehicles, personal property and parts inventory to a wholly-owned subsidiary of Exterran Holdings that is our indirect parent company for $4.1 million. The purchase price paid by us and the wholly-owned subsidiary of Exterran Holdings is subject to post-closing adjustments in accordance with the terms of the Purchase and Sale Agreement.
	We accounted for the August 2014 MidCon Acquisition using the acquisition method, which requires, among other things, assets acquired and liabilities assumed to be recorded at their fair value on the acquisition date. The excess of the consideration transferred over those fair values is recorded as goodwill. The preliminary allocation of the purchase price, which is subject to certain adjustments, was based upon preliminary valuations and our estimates and assumptions are subject to change upon the completion of management’s review of the final valuations. We are in the process of finalizing valuations related to property, plant and equipment, goodwill, identifiable intangible assets and liabilities. Post-closing adjustments to the purchase price could impact future depreciation and amortization expense. The final valuation of net assets acquired is expected to be completed as soon as possible, but no later than one year from the acquisition date, in accordance with GAAP.
	The following table summarizes the preliminary purchase price allocation based on estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands):
		Preliminary
		Fair Value
	Property, plant and equipment	$	78,356
	Goodwill	3,738
	Intangible assets	48,373
	Current liabilities	(372		)
	Preliminary purchase price	$	130,095
	Property, Plant and Equipment, Goodwill and Intangible Assets Acquired
	The preliminary amount of property, plant and equipment is comprised of compression equipment that will be depreciated on a straight-line basis over an estimated average remaining useful life of 24 years.
	The preliminary amount of goodwill of $3.7 million resulting from the acquisition is attributable to the expansion of our services in the region. The preliminary amount of goodwill recorded is considered to have an indefinite life and will be reviewed annually for impairment or more frequently if indicators of impairment exist.
	The preliminary amount of finite life intangible assets, and their associated average useful lives, was determined based on the period which the assets are expected to contribute directly or indirectly to our future cash flows, consisting of the following:
		Amount			Average
		(In thousands)			Useful Life
	Customer related	$	21,590		25 years
	Contract based	26,783			5 years
	Total acquired identifiable intangible assets	$	48,373
	The results of operations attributable to the assets acquired in the August 2014 MidCon Acquisition have been included in our condensed consolidated financial statements since the date of acquisition. Revenue attributable to the assets acquired in the August 2014 MidCon Acquisition was $3.4 million from the date of acquisition through September 30, 2014. We are unable to provide earnings attributable to the assets acquired in the August 2014 MidCon Acquisition since the date of acquisition as we do not prepare full stand-alone earnings reports for those assets.
	April 2014 MidCon Acquisition
	On April 10, 2014, we completed an acquisition of natural gas compression assets, including a fleet of 337 compressor units, comprising approximately 444,000 horsepower from MidCon for $352.9 million (the “April 2014 MidCon Acquisition”). The purchase price was funded with the net proceeds from the sale, pursuant to a public underwritten offering, of 6.2 million common units and a portion of the net proceeds from the issuance of $350.0 million aggregate principal amount of 6% senior notes due October 2022 (the “2014 Notes”). The compressor units were previously used by MidCon to provide compression services to a subsidiary of Access Midstream Partners LP (“Access”). Effective as of the closing of the acquisition, we and Access entered into a seven-year contract operations services agreement under which we will provide compression services to Access. During the nine months ended September 30, 2014, we incurred transaction costs of approximately $1.5 million related to the April 2014 MidCon Acquisition, which is reflected in other (income) expense, net, in our condensed consolidated statements of operations.
	In accordance with the terms of the Purchase and Sale Agreement relating to this acquisition, we directed MidCon to sell a tract of real property and the facility located thereon, a fleet of vehicles, personal property and parts inventory to a wholly-owned subsidiary of Exterran Holdings that is our indirect parent company for $7.7 million.
	We accounted for the April 2014 MidCon Acquisition using the acquisition method, which requires, among other things, assets acquired and liabilities assumed to be recorded at their fair value on the acquisition date. The preliminary allocation of the purchase price was based upon preliminary valuations and our estimates and assumptions are subject to change upon the completion of management’s review of the final valuations. We are in the process of finalizing valuations related to property, plant and equipment, identifiable intangible assets and liabilities. Adjustments to the preliminary purchase price allocation could impact future depreciation and amortization expense. The final valuation of net assets acquired is expected to be completed as soon as possible, but no later than one year from the acquisition date, in accordance with GAAP. The following table summarizes the preliminary purchase price allocation based on estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands):
		Preliminary
		Fair Value
	Property, plant and equipment	$	311,270
	Intangible assets	42,474
	Current liabilities	(827		)
	Purchase price	$	352,917
	Property, Plant and Equipment and Intangible Assets Acquired
	The preliminary amount of property, plant and equipment is comprised of compression equipment that will be depreciated on a straight-line basis over an estimated average remaining useful life of 25 years.
	The preliminary amount of finite life intangible assets, and their associated average useful lives, was determined based on the period which the assets are expected to contribute directly or indirectly to our future cash flows, consisting of the following:
		Amount			Average
		(In thousands)			Useful Life
	Customer related	$	4,701		25 years
	Contract based	37,773			7 years
	Total acquired identifiable intangible assets	$	42,474
	The results of operations attributable to the assets acquired in the April 2014 MidCon Acquisition have been included in our condensed consolidated financial statements since the date of acquisition. Revenue attributable to the assets acquired in the April 2014 MidCon Acquisition was $42.7 million from the date of acquisition through September 30, 2014. We are unable to provide earnings attributable to the assets acquired in the April 2014 MidCon Acquisition since the date of acquisition as we do not prepare full stand-alone earnings reports for those assets.
	March 2013 Contract Operations Acquisition
	In March 2013, we acquired from Exterran Holdings contract operations customer service agreements with 50 customers and a fleet of 363 compressor units used to provide compression services under those agreements, comprising approximately 256,000 horsepower, or 8% (by then available horsepower) of the combined U.S. contract operations business of Exterran Holdings and us (the “March 2013 Contract Operations Acquisition”). The acquired assets also included 204 compressor units, comprising approximately 99,000 horsepower, previously leased from Exterran Holdings to us and contracts relating to approximately 6,000 horsepower of compressor units we already owned and previously leased to Exterran Holdings. At the acquisition date, the acquired fleet assets had a net book value of $158.5 million, net of accumulated depreciation of $94.9 million. Total consideration for the transaction was approximately $174.0 million, excluding transaction costs. In connection with this acquisition, we issued approximately 7.1 million common units to Exterran Holdings and approximately 145,000 general partner units to our general partner.
	In connection with this acquisition, we were allocated $3.1 million finite life intangible assets associated with customer relationships of Exterran Holdings’ North America contract operations segment. The amounts allocated were based on the ratio of fair value of the net assets transferred to us to the total fair value of Exterran Holdings’ North America contract operations segment. These intangible assets are being amortized through 2024, based on the present value of income expected to be realized from these intangible assets.
	Because Exterran Holdings and we are considered entities under common control, GAAP requires that we record the assets acquired and liabilities assumed from Exterran Holdings in connection with the March 2013 Contract Operations Acquisition using Exterran Holdings’ historical cost basis in the assets and liabilities. The difference between the historical cost basis of the assets acquired and liabilities assumed and the purchase price is treated as either a capital contribution or distribution. As a result, we recorded a capital distribution of $12.4 million for the March 2013 Contract Operations Acquisition during the nine months ended September 30, 2013.
	An acquisition of a business from an entity under common control is generally accounted for under GAAP by the acquirer with retroactive application as if the acquisition date was the beginning of the earliest period included in the financial statements. Retroactive effect to the March 2013 Contract Operations Acquisition was impracticable because such retroactive application would have required significant assumptions in a prior period that cannot be substantiated. Accordingly, our financial statements include the assets acquired, liabilities assumed, revenue and direct operating expenses associated with the acquisition beginning on the date of such acquisition. However, the preparation of pro forma financial information allows for certain assumptions that do not meet the standards of financial statements prepared in accordance with GAAP.
	Pro Forma Financial Information
	Pro forma financial information for the three and nine months ended September 30, 2014 and 2013 has been included to give effect to the additional assets acquired in the August 2014 MidCon Acquisition, the April 2014 MidCon Acquisition and the March 2013 Contract Operations Acquisition. The August 2014 MidCon Acquisition, the April 2014 MidCon Acquisition and the March 2013 Contract Operations Acquisition are presented in the pro forma financial information as though the transactions occurred as of January 1, 2013. The pro forma financial information reflects the following transactions:
	As related to the August 2014 MidCon Acquisition:
	·         our acquisition in August 2014 of natural gas compression assets and identifiable intangible assets from MidCon; and
	·         our borrowings under our revolving credit facility to pay $130.1 million to MidCon for the August 2014 MidCon Acquisition.
	As related to the April 2014 MidCon Acquisition:
	·         our acquisition in April 2014 of natural gas compression assets and identifiable intangible assets from MidCon;
	·         our issuance of 6.2 million common units to the public and approximately 126,000 general partner units to our general partner;
	·         our issuance of $350.0 million aggregate principal amount of the 2014 Notes; and
	·         our use of proceeds from the issuance of common units, general partner units and the 2014 Notes to pay $352.9 million to MidCon for the April 2014 MidCon Acquisition and to pay down $157.5 million on our revolving credit facility.
	As related to the March 2013 Contract Operations Acquisition:
	·         our acquisition in March 2013 of certain contract operations customer service agreements, compression equipment and identifiable intangible assets from Exterran Holdings; and
	·         our issuance of approximately 7.1 million common units to Exterran Holdings and approximately 145,000 general partner units to our general partner.
	The pro forma financial information below is presented for informational purposes only and is not necessarily indicative of our results of operations that would have occurred had each transaction been consummated at the beginning of the period presented, nor is it necessarily indicative of future results. The pro forma financial information below was derived by adjusting our historical financial statements.
	The following table shows pro forma financial information for the three and nine months ended September 30, 2014 and 2013 (in thousands, except per unit amounts):
		Three Months Ended September 30,					Nine Months Ended September 30,
	2014			2013		2014		2013
Revenue	$	155,475		$	144,414	$	457,710	$	442,981
Net income	$	17,823		$	13,448	$	45,482	$	65,806
Basic earnings per common unit	$	0.25		$	0.2	$	0.65	$	1.06
Diluted earnings per common unit	$	0.25		$	0.2	$	0.65	$	1.06
Pro forma net income (loss) per common unit is determined by dividing the pro forma net income (loss) that would have been allocated to our common unitholders by the weighted average number of common units outstanding after the completion of the transactions included in the pro forma financial statements. Pursuant to our partnership agreement, to the extent that the quarterly distributions exceed certain targets, our general partner is entitled to receive certain incentive distributions that will result in more net income (loss) proportionately being allocated to our general partner than to our common unitholders. The pro forma net income per limited partner unit calculations reflect the incentive distributions made to our general partner and a reduction of net income allocable to our limited partners of $0.2 million and $0.6 million for the three and nine months ended September 30, 2013, respectively, which reflects the amount of additional incentive distributions that would have occurred if the pro forma limited partner units had been outstanding as of January 1, 2013. There was no additional pro forma reduction of net income allocable to our limited partners, including the amount of additional incentive distributions that would have occurred, for the three and nine months ended September 30, 2014.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2014
Related Party Transactions	'
Related Party Transactions	'
	3.  Related Party Transactions
	We are a party to an omnibus agreement with Exterran Holdings, our general partner and others (as amended and/or restated, the “Omnibus Agreement”), which includes, among other things:
	·         certain agreements not to compete between Exterran Holdings and its affiliates, on the one hand, and us and our affiliates, on the other hand;
	·         Exterran Holdings’ obligation to provide all operational staff, corporate staff and support services reasonably necessary to operate our business and our obligation to reimburse Exterran Holdings for such services, subject to certain limitations and the cost caps discussed below;
	·         the terms under which we, Exterran Holdings, and our respective affiliates may transfer, exchange or lease compression equipment among one another;
	·         the terms under which we may purchase newly-fabricated contract operations equipment from Exterran Holdings;
	·         Exterran Holdings’ grant to us of a license to use certain intellectual property, including our logo; and
	·         Exterran Holdings’ and our obligations to indemnify each other for certain liabilities.
	The Omnibus Agreement will terminate upon a change of control of Exterran GP LLC, our general partner or us, and certain provisions of the Omnibus Agreement will terminate upon a change of control of Exterran Holdings. Provisions such as non-competition, transfers of compression equipment and caps on operating and selling, general and administrative (“SG&A”) expenses will terminate on December 31, 2014, unless extended.
	Pursuant to the Omnibus Agreement, we may purchase newly-fabricated compression equipment from Exterran Holdings or its affiliates at Exterran Holdings’ cost to fabricate such equipment plus a fixed margin, which may be modified with the approval of Exterran Holdings and the conflicts committee of our board of directors. During the nine months ended September 30, 2014 and 2013, we purchased $152.6 million and $79.3 million, respectively, of newly-fabricated compression equipment from Exterran Holdings. Transactions between us and Exterran Holdings and its affiliates are transactions between entities under common control. Under GAAP, transfers of assets and liabilities between entities under common control are to be initially recorded on the books of the receiving entity at the carrying value of the transferor. Any difference between consideration given and the carrying value of the assets or liabilities is treated as a capital distribution or contribution. As a result, the newly-fabricated compression equipment purchased during the nine months ended September 30, 2014 and 2013 was recorded in our condensed consolidated balance sheets as property, plant and equipment of $138.3 million and $71.4 million, respectively, which represents the carrying value of the Exterran Holdings’ affiliates that sold it to us, and as a distribution of equity of $14.3 million and $7.9 million, respectively, which represents the fixed margin we paid above the carrying value in accordance with the Omnibus Agreement. During the nine months ended September 30, 2014 and 2013, Exterran Holdings contributed to us $4.6 million and $18.7 million, respectively, primarily related to the completion of overhauls on compression equipment that was exchanged with us or contributed to us and where overhauls were in progress on the date of exchange or contribution.
	If Exterran Holdings determines in good faith that we or Exterran Holdings’ contract operations services business need to transfer, exchange or lease compression equipment between Exterran Holdings and us, the Omnibus Agreement permits such equipment to be transferred, exchanged or leased if it will not cause us to breach any existing contracts, suffer a loss of revenue under an existing compression services contract or incur any unreimbursed costs. In consideration for such transfer, exchange or lease of compression equipment, the transferee will either (1) transfer to the transferor compression equipment equal in value to the appraised value of the compression equipment transferred to it, (2) agree to lease such compression equipment from the transferor or (3) pay the transferor an amount in cash equal to the appraised value of the compression equipment transferred to it. These provisions will terminate on December 31, 2014 unless the Omnibus Agreement is terminated earlier as discussed above.
	During the nine months ended September 30, 2014, pursuant to the terms of the Omnibus Agreement, we transferred ownership of 349 compressor units, totaling approximately 176,300 horsepower with a net book value of approximately $74.4 million, to Exterran Holdings. In exchange, Exterran Holdings transferred ownership of 354 compressor units, totaling approximately 128,800 horsepower with a net book value of approximately $63.0 million, to us. During the nine months ended September 30, 2013, pursuant to the terms of the Omnibus Agreement, we transferred ownership of 231 compressor units, totaling approximately 102,800 horsepower with a net book value of approximately $45.5 million, to Exterran Holdings. In exchange, Exterran Holdings transferred ownership of 235 compressor units, totaling approximately 74,600 horsepower with a net book value of approximately $36.0 million, to us. During the nine months ended September 30, 2014 and 2013, we recorded capital distributions of approximately $11.4 million and $9.5 million, respectively, related to the differences in net book value on the exchanged compression equipment. No customer contracts were included in the transfers. Under the terms of the Omnibus Agreement, such transfers must be of equal appraised value, as defined in the Omnibus Agreement, with any difference being settled in cash.
	At September 30, 2014, we had equipment on lease to Exterran Holdings with an aggregate cost and accumulated depreciation of $0.6 million and $0.1 million, respectively. During each of the nine month periods ended September 30, 2014 and 2013, we had revenue of $0.3 million from Exterran Holdings related to the lease of our compression equipment. During the nine months ended September 30, 2014 and 2013, we had cost of sales of $3.8 million and $4.4 million, respectively, with Exterran Holdings related to the lease of Exterran Holdings’ compression equipment.
	During the nine months ended September 30, 2013, we sold used compression equipment with a net book value of $1.3 million to Exterran Holdings for $3.4 million. Under GAAP, assets sales between entities under common control are to be initially recorded on the books of the receiving entity at the carrying value of the transferor. Any difference between consideration received and the carrying value of the assets sold is treated as a capital distribution or contribution. During the nine months ended September 30, 2013, we recorded a capital contribution of $2.1 million related to the difference between the sales price and the carrying value of the used compression equipment sold. During the nine months ended September 30, 2014, we did not sell any used compression equipment to Exterran Holdings.
	Exterran Holdings provides all operational staff, corporate staff and support services reasonably necessary to run our business. These services may include, without limitation, operations, marketing, maintenance and repair, periodic overhauls of compression equipment, inventory management, legal, accounting, treasury, insurance administration and claims processing, risk management, health, safety and environmental, information technology, human resources, credit, payroll, internal audit, taxes, facilities management, investor relations, enterprise resource planning system, training, executive, sales, business development and engineering.
	Exterran Holdings charges us for costs that are directly attributable to us. Costs that are indirectly attributable to us and Exterran Holdings’ other operations are allocated among Exterran Holdings’ other operations and us. The allocation methodologies vary based on the nature of the charge and include, among other things, revenue and horsepower. We believe that the allocation methodologies used to allocate indirect costs to us are reasonable.
	Under the Omnibus Agreement, our obligation to reimburse Exterran Holdings for any cost of sales that it incurs in the operation of our business and any cash SG&A expense allocated to us is capped (after taking into account any such costs we incur and pay directly) through December 31, 2014. Cost of sales was capped at $21.75 per operating horsepower per quarter through December 31, 2013, and is capped at $22.50 per operating horsepower per quarter from January 1, 2014 through December 31, 2014. SG&A costs were capped at $10.5 million per quarter through March 31, 2013, $12.5 million per quarter from April 1, 2013 through December 31, 2013 and $15.0 million per quarter from January 1, 2014 through April 9, 2014, and are capped at $17.7 million per quarter from April 10, 2014 through December 31, 2014. These caps may be subject to future adjustment or termination in connection with expansion of our operations through the acquisition or construction of new assets or businesses.
	Our cost of sales exceeded the cap provided in the Omnibus Agreement by $3.2 million during the three months ended September 30, 2013 and by $2.5 million and $8.4 million during the nine months ended September 30, 2014 and 2013, respectively. During the three months ended September 30, 2014, our cost of sales did not exceed the cap provided in the Omnibus Agreement. Our SG&A expenses exceeded the cap provided in the Omnibus Agreement by $2.7 million and $4.2 million during the three months ended September 30, 2014 and 2013, respectively, and by $7.7 million and $8.4 million during the nine months ended September 30, 2014 and 2013, respectively. The excess amounts over the caps are included in the condensed consolidated statements of operations as cost of sales or SG&A expense. The cash received for the amounts over the caps has been accounted for as a capital contribution in our condensed consolidated balance sheets and condensed consolidated statements of cash flows.

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2014
Long-Term Debt	'
Long-Term Debt	'
	4.  Long-Term Debt
	Long-term debt consisted of the following (in thousands):
		September 30, 2014		December 31, 2013
	Revolving credit facility due May 2018	$	380,000	$	263,000
	Term loan facility due May 2018	150,000		150,000
	6% senior notes due April 2021 (presented net of the unamortized discount of $4.6 million and $5.0 million, respectively)	345,381		344,955
	6% senior notes due October 2022 (presented net of the unamortized discount of $5.4 million as of September 30, 2014)	344,632		—
	Long-term debt	$	1,220,013	$	757,955
	Revolving Credit Facility and Term Loan
	In March 2013, we amended our senior secured credit agreement (the “Credit Agreement”) to reduce the borrowing capacity under our revolving credit facility by $100.0 million to $650.0 million and extend the maturity date of the term loan and revolving credit facilities to May 2018. As a result of the March 2013 amendment, we expensed $0.7 million of unamortized deferred financing costs, which is reflected in interest expense in our condensed consolidated statements of operations. We incurred transaction costs of approximately $4.3 million related to the amendment to our Credit Agreement. These costs were included in intangible and other assets, net, and are being amortized over the terms of the facilities. As of September 30, 2014, we had undrawn and available capacity of $270.0 million under our revolving credit facility.
	6% Senior Notes Due April 2021
	In March 2013, we issued $350.0 million aggregate principal amount of 6% senior notes due April 2021 (the “2013 Notes”). We used the net proceeds of $336.9 million, after original issuance discount and issuance costs, to repay borrowings outstanding under our revolving credit facility. We incurred $7.6 million in transaction costs related to this issuance. These costs were included in intangible and other assets, net, and are being amortized to interest expense over the term of the 2013 Notes. The 2013 Notes were issued at an original issuance discount of $5.5 million, which is being amortized using the effective interest method at an interest rate of 6.25% over their term. In January 2014, holders of the 2013 Notes exchanged their 2013 Notes for registered notes with the same terms.
	6% Senior Notes Due October 2022
	In April 2014, we issued $350.0 million aggregate principal amount of the 2014 Notes. We received net proceeds of $337.4 million, after original issuance discount and issuance costs, from this offering, which we used to fund a portion of the April 2014 MidCon Acquisition and repay borrowings under our revolving credit facility. The 2014 Notes were issued at an original issuance discount of $5.7 million, which is being amortized using the effective interest method at an interest rate of 6.25% over their term. We incurred $6.9 million in transaction costs related to this issuance. These costs were included in intangible and other assets, net, and are being amortized to interest expense over the term of the 2014 Notes. The 2014 Notes have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), or any state securities laws, and unless so registered, may not be offered or sold in the U.S. except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and applicable state securities laws. We offered and issued the 2014 Notes only to qualified institutional buyers pursuant to Rule 144A under the Securities Act and to persons outside the U.S. pursuant to Regulation S. Pursuant to a registration rights agreement, we are required to register the 2014 Notes no later than 365 days after April 7, 2014.
	Prior to April 1, 2018, we may redeem all or a part of the 2014 Notes at a redemption price equal to the sum of (i) the principal amount thereof, plus (ii) a make-whole premium at the redemption date, plus accrued and unpaid interest, if any, to the redemption date. In addition, we may redeem up to 35% of the aggregate principal amount of the 2014 Notes prior to April 1, 2017 with the net proceeds of one or more equity offerings at a redemption price of 106.000% of the principal amount of the 2014 Notes, plus any accrued and unpaid interest to the date of redemption, if at least 65% of the aggregate principal amount of the 2014 Notes issued under the indenture remains outstanding after such redemption and the redemption occurs within 180 days of the date of the closing of such equity offering. On or after April 1, 2018, we may redeem all or a part of the 2014 Notes at redemption prices (expressed as percentages of principal amount) equal to 103.000% for the twelve-month period beginning on April 1, 2018, 101.500% for the twelve-month period beginning on April 1, 2019 and 100.000% for the twelve-month period beginning on April 1, 2020 and at any time thereafter, plus accrued and unpaid interest, if any, to the applicable redemption date of the 2014 Notes.
	The 2013 Notes and the 2014 Notes are guaranteed on a senior unsecured basis by all of our existing subsidiaries (other than EXLP Finance Corp., which is a co-issuer of the 2013 Notes and the 2014 Notes) and certain of our future subsidiaries. The 2013 Notes and the 2014 Notes and the guarantees, respectively, are our and the guarantors’ general unsecured senior obligations, rank equally in right of payment with all of our and the guarantors’ other senior obligations, and are effectively subordinated to all of our and the guarantors’ existing and future secured debt to the extent of the value of the collateral securing such indebtedness. In addition, the 2013 Notes and the 2014 Notes and guarantees are effectively subordinated to all existing and future indebtedness and other liabilities of any future non-guarantor subsidiaries. All of our subsidiaries are 100% owned, directly or indirectly, by us and guarantees by our subsidiaries are full and unconditional (subject to customary release provisions) and constitute joint and several obligations. We have no assets or operations independent of our subsidiaries, and there are no significant restrictions upon our subsidiaries’ ability to distribute funds to us. EXLP Finance Corp. has no operations and does not have revenue other than as may be incidental as co-issuer of the 2013 Notes and the 2014 Notes. Because we have no independent operations, the guarantees are full and unconditional (subject to customary release provisions) and constitute joint and several obligations of our subsidiaries other than EXLP Finance Corp., and as a result we have not included consolidated financial information of our subsidiaries.

Cash_Distributions

Cash Distributions	9 Months Ended
	Sep. 30, 2014
Cash Distributions	'
Cash Distributions	'
	5.  Cash Distributions
	We make distributions of available cash (as defined in our partnership agreement) from operating surplus in the following manner:
	·         first, 98% to the common unitholders, pro rata, and 2% to our general partner, until we distribute for each outstanding common unit an amount equal to the minimum quarterly distribution for that quarter;
	·         second, 98% to common unitholders, pro rata, and 2% to our general partner, until each unit has received a distribution of $0.4025;
	·         third, 85% to all common unitholders, pro rata, and 15% to our general partner, until each unit has received a distribution of $0.4375;
	·         fourth, 75% to all common unitholders, pro rata, and 25% to our general partner, until each unit has received a total of $0.5250; and
	·         thereafter, 50% to all common unitholders, pro rata, and 50% to our general partner.
	The following table summarizes our distributions per unit for 2013 and 2014:
	Period Covering	Payment Date	Distribution per		Total Distribution (1)
			Limited Partner
			Unit
	1/1/2013 — 3/31/2013	May 15, 2013	$	0.5175	$	27.6 million
	4/1/2013 — 6/30/2013	August 14, 2013	0.5225		27.9 million
	7/1/2013 — 9/30/2013	November 14, 2013	0.5275		28.3 million
	10/1/2013 — 12/31/2013	February 14, 2014	0.5325		28.8 million
	1/1/2014 — 3/31/2014	May 15, 2014	0.5375		33.1 million
	4/1/2014 — 6/30/2014	August 14, 2014	0.5425		33.6 million
	(1) Includes distributions to our general partner on its incentive distribution rights.
	On October 28, 2014, our board of directors approved a cash distribution of $0.5525 per limited partner unit, or approximately $34.8 million, including distributions to our general partner on its incentive distribution rights. The distribution covers the period from July 1, 2014 through September 30, 2014. The record date for this distribution is November 7, 2014 and payment is expected to occur on November 14, 2014.

UnitBased_Compensation

Unit-Based Compensation	9 Months Ended
	Sep. 30, 2014
Unit-Based Compensation	'
Unit-Based Compensation	'
	6.  Unit-Based Compensation
	Long-Term Incentive Plan
	Our board of directors adopted the Exterran Partners, L.P. Long-Term Incentive Plan (the “Plan”) in October 2006 for employees, directors and consultants of us, Exterran Holdings and our respective affiliates. A maximum of 1,035,378 common units, common unit options, restricted units and phantom units are available under the Plan. The Plan is administered by our board of directors or a committee thereof (the “Plan Administrator”).
	Phantom units are notional units that entitle the grantee to receive a common unit upon the vesting of the phantom unit or, at the discretion of the Plan Administrator, cash equal to the fair market value of a common unit. Certain phantom units granted under the Plan include nonforfeitable tandem distribution equivalent rights to receive cash distributions on unvested phantom units in the quarter in which distributions are paid on common units.
	Phantom Units
	The following table presents phantom unit activity during the nine months ended September 30, 2014:
		Phantom		Weighted
		Units		Average
				Grant-Date
				Fair Value
				per Unit
	Phantom units outstanding, January 1, 2014	85,361		$	23.72
	Granted	54,896		30.5
	Vested	(45,369	)	24.69
	Phantom units outstanding, September 30, 2014	94,888		27.18
	As of September 30, 2014, we expect $2.0 million of unrecognized compensation cost related to unvested phantom units to be recognized over the weighted-average period of 2.0 years.

Accounting_for_Derivatives

Accounting for Derivatives

9 Months Ended

Sep. 30, 2014

Accounting for Derivatives

'

Accounting for Derivatives

'

7.  Accounting for Derivatives

We are exposed to market risks associated with changes in interest rates. We use derivative financial instruments to minimize the risks and/or costs associated with financial activities by managing our exposure to interest rate fluctuations on a portion of our debt obligations. We do not use derivative financial instruments for trading or other speculative purposes.

Interest Rate Risk

During the three months ended September 30, 2014, we entered into interest rate swaps with a notional value of $150.0 million. At September 30, 2014, we were a party to interest rate swaps with a total notional value of $400.0 million, pursuant to which we make fixed payments and receive floating payments. We entered into these swaps to offset changes in expected cash flows due to fluctuations in the associated variable interest rates. Our interest rate swaps expire over varying dates, with interest rate swaps having a notional amount of $300.0 million expiring in May 2018 and the remaining interest rate swaps having a notional amount of $100.0 million expiring in May 2019. As of September 30, 2014, the weighted average effective fixed interest rate on our interest rate swaps was 1.6%. We have designated these interest rate swaps as cash flow hedging instruments so that any change in their fair values is recognized as a component of comprehensive income (loss) and is included in accumulated other comprehensive income (loss) to the extent the hedge is effective. As the swap terms substantially coincide with the hedged item and are expected to offset changes in expected cash flows due to fluctuations in the variable rate, we currently do not expect a significant amount of ineffectiveness on these hedges. We perform quarterly calculations to determine whether the swap agreements are still effective and to calculate any ineffectiveness. There was no ineffectiveness related to interest rate swaps during the nine months ended September 30, 2014 and 2013. We estimate that $5.5 million of deferred losses attributable to interest rate swaps and included in our accumulated other comprehensive income (loss) at September 30, 2014, will be reclassified into earnings as interest expense at then-current values during the next twelve months as the underlying hedged transactions occur. Cash flows from derivatives designated as hedges are classified in our condensed consolidated statements of cash flows under the same category as the cash flows from the underlying assets, liabilities or anticipated transactions, unless the derivative contract contains a significant financing element; in this case, the cash settlements for these derivatives are classified as cash flows from financing activities in our condensed consolidated statements of cash flows.

In May 2013, we amended our interest rate swap agreements with a notional value of $250.0 million to adjust the fixed interest rates and extend the maturity dates to May 2018 consistent with the maturity date of our Credit Agreement. These amendments effectively created new derivative contracts and terminated the old derivative contracts. As a result, we designated the new hedge relationships under the amended terms and de-designated the original hedge relationships as of the termination date. The original hedge relationships qualified for hedge accounting and were included at their fair value in our balance sheet as a liability and accumulated other comprehensive income (loss). The fair value of the interest rate swap agreements immediately prior to the execution of the amendments was a liability of $8.8 million. The associated amount in accumulated other comprehensive income (loss) is being amortized into interest expense over the original terms of the swaps.

The following tables present the effect of derivative instruments on our consolidated financial position and results of operations (in thousands):

September 30, 2014

Balance Sheet Location

Fair Value

Asset

(Liability)

Derivatives designated as hedging instruments:

Interest rate hedges

Intangible and other assets, net

$

2,925

Interest rate hedges

Current portion of interest rate swaps

(5,225

)

Total derivatives

$

(2,300

)

December 31, 2013

Balance Sheet Location

Fair Value

Asset

(Liability)

Derivatives designated as hedging instruments:

Interest rate hedges

Intangible and other assets, net

$

322

Interest rate hedges

Current portion of interest rate swaps

(3,374

)

Total derivatives

$

(3,052

)

Three Months Ended September 30, 2014

Nine Months Ended September 30, 2014

Gain (Loss)

Location of Gain

Gain (Loss)

Gain (Loss)

Location of Gain

Gain (Loss)

Recognized in Other

(Loss) Reclassified

Reclassified from

Recognized in Other

(Loss) Reclassified

Reclassified from

Comprehensive

from Accumulated

Accumulated Other

Comprehensive

from Accumulated

Accumulated Other

Income (Loss) on

Other Comprehensive

Comprehensive

Income (Loss) on

Other Comprehensive

Comprehensive

Derivatives

Income (Loss) into

Income (Loss) into

Derivatives

Income (Loss) into

Income (Loss) into

Income (Loss)

Income (Loss)

Income (Loss)

Income (Loss)

Derivatives designated as cash flow hedges:

Interest rate hedges

$

846

Interest expense

$

(1,213

)

$

(2,283

)

Interest expense

$

(3,228

)

Three Months Ended September 30, 2013

Nine Months Ended September 30, 2013

Gain (Loss)

Location of Gain

Gain (Loss)

Gain (Loss)

Location of Gain

Gain (Loss)

Recognized in Other

(Loss) Reclassified

Reclassified from

Recognized in Other

(Loss) Reclassified

Reclassified from

Comprehensive

from Accumulated

Accumulated Other

Comprehensive

from Accumulated

Accumulated Other

Income (Loss) on

Other Comprehensive

Comprehensive

Income (Loss) on

Other Comprehensive

Comprehensive

Derivatives

Income (Loss) into

Income (Loss) into

Derivatives

Income (Loss) into

Income (Loss) into

Income (Loss)

Income (Loss)

Income (Loss)

Income (Loss)

Derivatives designated as cash flow hedges:

Interest rate hedges

$

(2,247

)

Interest expense

$

(985

)

$

2,453

Interest expense

$

(3,670

)

The counterparties to our derivative agreements are major international financial institutions. We monitor the credit quality of these financial institutions and do not expect non-performance by any counterparty, although such non-performance could have a material adverse effect on us. We have no specific collateral posted for our derivative instruments. The counterparties to our interest rate swaps are also lenders under our senior secured credit facility and, in that capacity, share proportionally in the collateral pledged under the related facility.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements	'
Fair Value Measurements	'
	8.  Fair Value Measurements
	The accounting standard for fair value measurements and disclosures establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into the following three broad categories:
	·         Level 1 — Quoted unadjusted prices for identical instruments in active markets to which we have access at the date of measurement.
	·         Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. Level 2 inputs are those in markets for which there are few transactions, the prices are not current, little public information exists or prices vary substantially over time or among brokered market makers.
	·         Level 3 — Model derived valuations in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are those inputs that reflect our own assumptions regarding how market participants would price the asset or liability based on the best available information.
	The following table presents our assets and liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013, with pricing levels as of the date of valuation (in thousands):
		September 30, 2014							December 31, 2013
		(Level 1)		(Level 2)			(Level 3)		(Level 1)		(Level 2)			(Level 3)
	Interest rate swaps asset	$	—	$	2,925		$	—	$	—	$	322		$	—
	Interest rate swaps liability	—		(5,225		)	—		—		(3,374		)	—
	On a quarterly basis, our interest rate swaps are recorded at fair value utilizing a combination of the market approach and income approach to estimate fair value based on forward LIBOR curves.
	The following table presents our assets and liabilities measured at fair value on a nonrecurring basis during the nine months ended September 30, 2014 and 2013, with pricing levels as of the date of valuation (in thousands):
		Nine Months Ended September 30, 2014							Nine Months Ended September 30, 2013
		(Level 1)		(Level 2)			(Level 3)		(Level 1)		(Level 2)			(Level 3)
	Impaired long-lived assets	$	—	$	—		$	865	$	—	$	—		$	927
	Our estimate of the impaired long-lived assets’ fair value was primarily based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use. We discounted the expected proceeds, net of selling and other carrying costs, using a weighted average disposal period of four years and a discount rate of 9%.

LongLived_Asset_Impairment

Long-Lived Asset Impairment	9 Months Ended
	Sep. 30, 2014
Long-Lived Asset Impairment	'
Long-Lived Asset Impairment	'
	9.  Long-Lived Asset Impairment
	We review long-lived assets, including property, plant and equipment and identifiable intangibles that are being amortized, for impairment whenever events or changes in circumstances, including the removal of compressor units from our active fleet, indicate that the carrying amount of an asset may not be recoverable.
	During the nine months ended September 30, 2014, we evaluated the future deployment of our idle fleet and determined to retire and either sell or re-utilize the key components of approximately 95 idle compressor units, representing approximately 23,000 horsepower, previously used to provide services. As a result, we performed an impairment review and recorded a $7.4 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.
	In connection with our fleet review during the third quarter of 2014, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $0.6 million to reduce the book value of each unit to its estimated fair value.
	During the nine months ended September 30, 2013, we evaluated the future deployment of our idle fleet and determined to retire and either sell or re-utilize the key components of approximately 80 idle compressor units, representing approximately 16,000 horsepower, previously used to provide services. As a result, we performed an impairment review and recorded a $3.2 million asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use.

Restructuring_Charges

Restructuring Charges	9 Months Ended
	Sep. 30, 2014
Restructuring Charges	'
Restructuring Charges	'
	10.  Restructuring Charges
	In January 2014, Exterran Holdings announced a plan to centralize its make-ready operations to improve the cost and efficiency of its shops and further enhance the competitiveness of our and Exterran Holdings’ combined U.S. compressor fleet. As part of this plan, Exterran Holdings examined both recent and anticipated changes in the U.S. market, including the throughput demand of its shops and the addition of new equipment to our and Exterran Holdings’ combined U.S. compressor fleet. To better align its costs and capabilities with the current market, Exterran Holdings has determined to close several of its make-ready shops. The centralization of its make-ready operations was completed in the second quarter of 2014.
	During the nine months ended September 30, 2014, we incurred $0.7 million of restructuring charges comprised of an allocation of expenses, including termination benefits associated with the centralization of Exterran Holdings’ make-ready operations, from Exterran Holdings to us pursuant to the terms of the Omnibus Agreement based on revenue and horsepower. These charges are reflected as restructuring charges in our condensed consolidated statements of operations.

Unit_Transactions

Unit Transactions	9 Months Ended
	Sep. 30, 2014
Unit Transactions	'
Unit Transactions	'
	11.  Unit Transactions
	In April 2014, we sold, pursuant to a public underwritten offering, 6,210,000 common units, including 810,000 common units pursuant to an over-allotment option. We received net proceeds of $169.5 million, after deducting underwriting discounts, commissions and offering expenses, which we used to fund a portion of the April 2014 MidCon Acquisition. In connection with this sale and as permitted under our partnership agreement, we issued and sold approximately 126,000 general partner units to our general partner so it could maintain its approximate 2.0% general partner interest in us. We received net proceeds of $3.6 million from the general partner contribution which we used to repay borrowings outstanding under our revolving credit facility.
	In March 2013, we completed the March 2013 Contract Operations Acquisition from Exterran Holdings. In connection with this acquisition, we issued approximately 7.1 million common units to Exterran Holdings and approximately 145,000 general partner units to our general partner.
	As of September 30, 2014, Exterran Holdings owned 19,618,918 common units and 1,129,221 general partner units, collectively representing a 37% interest in us.

Recent_Accounting_Developments

Recent Accounting Developments	9 Months Ended
	Sep. 30, 2014
Recent Accounting Developments	'
Recent Accounting Developments	'
	12.  Recent Accounting Developments
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued an update to the authoritative guidance related to revenue recognition. The update outlines a single comprehensive model for companies to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The update also requires disclosures enabling users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The update will be effective for reporting periods beginning after December 15, 2016. Early adoption is not permitted. We are currently evaluating the potential impact of the update on our financial statements.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies	'
Commitments and Contingencies	'
	13.  Commitments and Contingencies
	In 2011, the Texas Legislature enacted changes related to the appraisal of natural gas compressors for ad valorem tax purposes by expanding the definitions of “Heavy Equipment Dealer” and “Heavy Equipment” effective from the beginning of 2012 (the “Heavy Equipment Statutes”). Under the revised statutes, we believe we are a Heavy Equipment Dealer, that our natural gas compressors are Heavy Equipment and that we, therefore, are required to file our ad valorem tax renditions under this new methodology. A large number of appraisal review boards denied our position, and we filed petitions for review in the appropriate district courts.
	During 2013 and the first nine months of 2014, we were party to three Heavy Equipment Statutes cases tried and completed in Texas state district courts. In each case the court held that the revised Heavy Equipment Statutes apply to natural gas compressors. However, in each case the court further held that the revised Heavy Equipment Statutes are unconstitutional as applied to natural gas compressors, which is favorable to the county appraisal districts. We continue to believe that the revised statutes are constitutional as applied to natural gas compressors and have appealed the courts’ decisions in our cases. For two of these district court rulings, oral arguments were made before the Eighth Court of Appeals in El Paso, Texas on October 9, 2014. No decision has been issued. In a fourth state district court case, both parties’ respective motions for summary judgment are pending and we have yet to receive the court’s decision. In a fifth state district court case, the court denied both parties’ respective motions for summary judgment and set a trial date for February 15, 2015.
	As a result of the new methodology, our ad valorem tax expense (which is reflected on our condensed consolidated statements of operations as a component of cost of sales (excluding depreciation and amortization expense)) includes a benefit of $7.4 million during the nine months ended September 30, 2014. Since the change in methodology became effective in 2012, we have recorded an aggregate benefit of $17.9 million as of September 30, 2014, of which approximately $4.6 million has been agreed to by a number of appraisal review boards and county appraisal districts and $13.3 million has been disputed and is currently in litigation. Recognizing the similarity of the issues and that these cases will ultimately be resolved by the Texas appellate courts, we have reached, or intend to reach, agreements with appraisal districts to stay or abate other pending district court cases. If we are unsuccessful in any of the cases with the appraisal districts, we would be required to pay ad valorem taxes up to the aggregate benefit we have recorded, and the additional ad valorem tax payments may also be subject to penalties and interest. In addition, if we are unsuccessful in any of the cases with the appraisal districts, we would likely be required to pay the ad valorem taxes under the old methodology going forward, which would increase our quarterly cost of sales expense up to approximately the amount of our then most recent quarterly benefit recorded, and as a result impact our future results of operations and cash flows, including our cash available for distribution.
	In the ordinary course of business, we are also involved in various other pending or threatened legal actions. While management is unable to predict the ultimate outcome of these actions, it believes that any ultimate liability arising from any of these other actions will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to make cash distributions to our unitholders. However, because of the inherent uncertainty of litigation and arbitration proceedings, we cannot provide assurance that the resolution of any particular claim or proceeding to which we are a party will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to make cash distributions to our unitholders.
	We are subject to a number of state and local taxes that are not income-based. As many of these taxes are subject to audit by the taxing authorities, it is possible that an audit could result in additional taxes due. We accrue for such additional taxes when we determine that it is probable that we have incurred a liability and we can reasonably estimate the amount of the liability. As of September 30, 2014 and December 31, 2013, we have accrued $0.1 million and $4.7 million, respectively, for the outcomes of non-income based tax audits. We do not expect that the ultimate resolutions of these audits will result in a material variance from the amounts accrued. We do not accrue for unasserted claims for tax audits unless we believe the assertion of a claim is probable, it is probable that it will be determined that the claim is owed and we can reasonably estimate the claim or range of the claim. We do not have any unasserted claims from non-income based tax audits that we have determined are probable of assertion. We also believe the likelihood is remote that the impact of potential unasserted claims from non-income based tax audits could be material to our consolidated financial position, but it is possible that the resolution of future audits could be material to our results of operations or cash flows for the period in which the resolution occurs.

Basis_of_Presentation_and_Summ1

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Basis of Presentation and Summary of Significant Accounting Policies	'
Comprehensive Income (Loss)	'
	Comprehensive Income (Loss)
	Components of comprehensive income (loss) are net income (loss) and all changes in equity during a period except those resulting from transactions with our limited partners or general partner. Our accumulated other comprehensive income (loss) consists only of derivative financial instruments. Changes in accumulated other comprehensive income (loss) represent changes in the fair value of derivative financial instruments that are designated as cash flow hedges and to the extent the hedge is effective and the amortization of terminated interest rate swaps. See Note 7 for additional disclosures related to comprehensive income (loss).
Financial Instruments	'
	Financial Instruments
	Our financial instruments consist of cash, trade receivables, interest rate swaps and debt. At September 30, 2014 and December 31, 2013, the estimated fair values of these financial instruments approximated their carrying amounts as reflected in our condensed consolidated balance sheets. The fair value of our fixed rate debt was estimated based on quoted market yields in inactive markets, which are Level 2 inputs. The fair value of our floating rate debt was estimated using a discounted cash flow analysis based on interest rates offered on loans with similar terms to borrowers of similar credit quality, which are Level 3 inputs. See Note 8 for additional information regarding the fair value hierarchy.
	The following table summarizes the carrying amount and fair value of our debt as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014						December 31, 2013
		Carrying			Fair Value			Carrying			Fair Value
		Amount						Amount
	Fixed rate debt	$	690,013		$	683,000		$	344,955		$	346,000
	Floating rate debt	530,000			531,000			413,000			413,000
	Total debt	$	1,220,013		$	1,214,000		$	757,955		$	759,000
	GAAP requires that all derivative instruments (including certain derivative instruments embedded in other contracts) be recognized in the balance sheet at fair value and that changes in such fair values be recognized in earnings (loss) unless specific hedging criteria are met. Changes in the values of derivatives that meet these hedging criteria will ultimately offset related earnings effects of the hedged item pending recognition in earnings.
Earnings (Loss) Per Common Unit	'
	Earnings (Loss) Per Common Unit
	Earnings (loss) per common unit is computed using the two-class method. Under the two-class method, basic earnings (loss) per common unit is determined by dividing net income (loss) allocated to the common units after deducting the amounts allocated to our general partner (including distributions to our general partner on its incentive distribution rights) and participating securities, by the weighted average number of outstanding common units (also referred to as limited partner units) during the period. Participating securities include unvested phantom units with nonforfeitable tandem distribution equivalent rights to receive cash distributions in the quarter in which distributions are paid on common units. During periods of net loss, no effect is given to participating securities because they do not have a contractual obligation to participate in our losses.
	When computing earnings per common unit in periods when distributions are greater than earnings (loss), the amount of the actual incentive distribution rights, if any, is deducted from net income (loss) and allocated to our general partner for the corresponding period. The remaining amount of net income (loss), after deducting distributions to participating securities, is allocated between the general partner and common units based on how our partnership agreement allocates net losses.
	When computing earnings (loss) per common unit in periods when earnings (loss) are greater than distributions, earnings are allocated to the general partner, participating securities and common units based on how our partnership agreement would allocate earnings if the full amount of earnings for the period had been distributed. This allocation of net income (loss) does not impact our total net income (loss), consolidated results of operations or total cash distributions (including actual incentive distribution rights); however, it may result in our general partner being allocated additional incentive distributions for purposes of our earnings (loss) per unit calculation, which could reduce net income per common unit. However, as required by our partnership agreement, we determine cash distributions based on available cash and determine the actual incentive distributions allocable to our general partner based on actual distributions.
	The following table reconciles net income used in the calculation of basic and diluted earnings per common unit (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Net income	$	18,103		$	10,035		$	42,794		$	52,664
	Less: General partner incentive distribution rights	(3,338		)	(1,746		)	(8,647		)	(4,842		)
	Less: General partner 2% ownership interest	(293		)	(165		)	(678		)	(952		)
	Common units interest in net income	14,472			8,124			33,469			46,870
	Less: Net income attributable to participating securities	(50		)	—			(149		)	—
	Net income used in basic and diluted earnings per common unit	$	14,422		$	8,124		$	33,320		$	46,870
	There were no adjustments to net income attributable to common unitholders for the diluted earnings per common unit calculation for the three and nine months ended September 30, 2014 and 2013.
	The following table shows the potential common units that were included in computing diluted earnings per common unit (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Weighted average common units outstanding including participating securities	55,752		49,409		53,664		47,058
	Less: Weighted average participating securities outstanding	(91	)	—		(81	)	—
	Weighted average common units outstanding — used in basic earnings per common unit	55,661		49,409		53,583		47,058
	Net dilutive potential common units issuable:
	Phantom units	2		20		2		14
	Weighted average common units and dilutive potential common units — used in diluted earnings per common unit	55,663		49,429		53,585		47,072

Basis_of_Presentation_and_Summ2

Basis of Presentation and Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2014
Basis of Presentation and Summary of Significant Accounting Policies	'
Schedule of the carrying amount and fair value of debt	'
	The following table summarizes the carrying amount and fair value of our debt as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014						December 31, 2013
		Carrying			Fair Value			Carrying			Fair Value
		Amount						Amount
	Fixed rate debt	$	690,013		$	683,000		$	344,955		$	346,000
	Floating rate debt	530,000			531,000			413,000			413,000
	Total debt	$	1,220,013		$	1,214,000		$	757,955		$	759,000
Schedule of reconciliation of net income used in calculation of basic and diluted earnings per common unit	'
	The following table reconciles net income used in the calculation of basic and diluted earnings per common unit (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Net income	$	18,103		$	10,035		$	42,794		$	52,664
	Less: General partner incentive distribution rights	(3,338		)	(1,746		)	(8,647		)	(4,842		)
	Less: General partner 2% ownership interest	(293		)	(165		)	(678		)	(952		)
	Common units interest in net income	14,472			8,124			33,469			46,870
	Less: Net income attributable to participating securities	(50		)	—			(149		)	—
	Net income used in basic and diluted earnings per common unit	$	14,422		$	8,124		$	33,320		$	46,870
Schedule of potential common units included in computing diluted earnings per common unit	'
	The following table shows the potential common units that were included in computing diluted earnings per common unit (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Weighted average common units outstanding including participating securities	55,752		49,409		53,664		47,058
	Less: Weighted average participating securities outstanding	(91	)	—		(81	)	—
	Weighted average common units outstanding — used in basic earnings per common unit	55,661		49,409		53,583		47,058
	Net dilutive potential common units issuable:
	Phantom units	2		20		2		14
	Weighted average common units and dilutive potential common units — used in diluted earnings per common unit	55,663		49,429		53,585		47,072

August_2014_MidCon_Acquisition1

August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition (Tables)	9 Months Ended
	Sep. 30, 2014
August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition	'
Schedule of pro forma financial information	'
	The following table shows pro forma financial information for the three and nine months ended September 30, 2014 and 2013 (in thousands, except per unit amounts):
		Three Months Ended September 30,					Nine Months Ended September 30,
		2014			2013		2014		2013
	Revenue	$	155,475		$	144,414	$	457,710	$	442,981
	Net income	$	17,823		$	13,448	$	45,482	$	65,806
	Basic earnings per common unit	$	0.25		$	0.2	$	0.65	$	1.06
	Diluted earnings per common unit	$	0.25		$	0.2	$	0.65	$	1.06
August 2014 MidCon Acquisition	'
August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition	'
Summary of preliminary purchase price allocation based on estimated fair values of acquired assets and liabilities as of the acquisition date	'
	The following table summarizes the preliminary purchase price allocation based on estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands):
		Preliminary
		Fair Value
	Property, plant and equipment	$	78,356
	Goodwill	3,738
	Intangible assets	48,373
	Current liabilities	(372		)
	Preliminary purchase price	$	130,095
Schedule of preliminary amounts allocated to acquired finite-lived intangible assets, and their associated weighted-average useful lives	'
		Amount			Average
		(In thousands)			Useful Life
	Customer related	$	21,590		25 years
	Contract based	26,783			5 years
	Total acquired identifiable intangible assets	$	48,373
April 2014 MidCon Acquisition	'
August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition	'
Summary of preliminary purchase price allocation based on estimated fair values of acquired assets and liabilities as of the acquisition date	'
	The following table summarizes the preliminary purchase price allocation based on estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands):
		Preliminary
		Fair Value
	Property, plant and equipment	$	311,270
	Intangible assets	42,474
	Current liabilities	(827		)
	Purchase price	$	352,917
Schedule of preliminary amounts allocated to acquired finite-lived intangible assets, and their associated weighted-average useful lives	'
		Amount			Average
		(In thousands)			Useful Life
	Customer related	$	4,701		25 years
	Contract based	37,773			7 years
	Total acquired identifiable intangible assets	$	42,474

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2014
Long-Term Debt	'
Schedule of long-term debt	'
	Long-term debt consisted of the following (in thousands):
		September 30, 2014		December 31, 2013
	Revolving credit facility due May 2018	$	380,000	$	263,000
	Term loan facility due May 2018	150,000		150,000
	6% senior notes due April 2021 (presented net of the unamortized discount of $4.6 million and $5.0 million, respectively)	345,381		344,955
	6% senior notes due October 2022 (presented net of the unamortized discount of $5.4 million as of September 30, 2014)	344,632		—
	Long-term debt	$	1,220,013	$	757,955

Cash_Distributions_Tables

Cash Distributions (Tables)	9 Months Ended
	Sep. 30, 2014
Cash Distributions	'
Summary of distributions per unit	'
	Period Covering	Payment Date	Distribution per		Total Distribution (1)
			Limited Partner
			Unit
	1/1/2013 — 3/31/2013	May 15, 2013	$	0.5175	$	27.6 million
	4/1/2013 — 6/30/2013	August 14, 2013	0.5225		27.9 million
	7/1/2013 — 9/30/2013	November 14, 2013	0.5275		28.3 million
	10/1/2013 — 12/31/2013	February 14, 2014	0.5325		28.8 million
	1/1/2014 — 3/31/2014	May 15, 2014	0.5375		33.1 million
	4/1/2014 — 6/30/2014	August 14, 2014	0.5425		33.6 million
	(1) Includes distributions to our general partner on its incentive distribution rights.

UnitBased_Compensation_Tables

Unit-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Unit-Based Compensation	'
Schedule of phantom unit activity	'
		Phantom		Weighted
		Units		Average
				Grant-Date
				Fair Value
				per Unit
	Phantom units outstanding, January 1, 2014	85,361		$	23.72
	Granted	54,896		30.5
	Vested	(45,369	)	24.69
	Phantom units outstanding, September 30, 2014	94,888		27.18

Accounting_for_Derivatives_Tab

Accounting for Derivatives (Tables)

9 Months Ended

Sep. 30, 2014

Accounting for Derivatives

'

Effect of derivative instruments on consolidated financial position

'

The following tables present the effect of derivative instruments on our consolidated financial position and results of operations (in thousands):

September 30, 2014

Balance Sheet Location

Fair Value

Asset

(Liability)

Derivatives designated as hedging instruments:

Interest rate hedges

Intangible and other assets, net

$

2,925

Interest rate hedges

Current portion of interest rate swaps

(5,225

)

Total derivatives

$

(2,300

)

December 31, 2013

Balance Sheet Location

Fair Value

Asset

(Liability)

Derivatives designated as hedging instruments:

Interest rate hedges

Intangible and other assets, net

$

322

Interest rate hedges

Current portion of interest rate swaps

(3,374

)

Total derivatives

$

(3,052

)

Effect of derivative instruments on results of operations

'

Three Months Ended September 30, 2014

Nine Months Ended September 30, 2014

Gain (Loss)

Location of Gain

Gain (Loss)

Gain (Loss)

Location of Gain

Gain (Loss)

Recognized in Other

(Loss) Reclassified

Reclassified from

Recognized in Other

(Loss) Reclassified

Reclassified from

Comprehensive

from Accumulated

Accumulated Other

Comprehensive

from Accumulated

Accumulated Other

Income (Loss) on

Other Comprehensive

Comprehensive

Income (Loss) on

Other Comprehensive

Comprehensive

Derivatives

Income (Loss) into

Income (Loss) into

Derivatives

Income (Loss) into

Income (Loss) into

Income (Loss)

Income (Loss)

Income (Loss)

Income (Loss)

Derivatives designated as cash flow hedges:

Interest rate hedges

$

846

Interest expense

$

(1,213

)

$

(2,283

)

Interest expense

$

(3,228

)

Three Months Ended September 30, 2013

Nine Months Ended September 30, 2013

Gain (Loss)

Location of Gain

Gain (Loss)

Gain (Loss)

Location of Gain

Gain (Loss)

Recognized in Other

(Loss) Reclassified

Reclassified from

Recognized in Other

(Loss) Reclassified

Reclassified from

Comprehensive

from Accumulated

Accumulated Other

Comprehensive

from Accumulated

Accumulated Other

Income (Loss) on

Other Comprehensive

Comprehensive

Income (Loss) on

Other Comprehensive

Comprehensive

Derivatives

Income (Loss) into

Income (Loss) into

Derivatives

Income (Loss) into

Income (Loss) into

Income (Loss)

Income (Loss)

Income (Loss)

Income (Loss)

Derivatives designated as cash flow hedges:

Interest rate hedges

$

(2,247

)

Interest expense

$

(985

)

$

2,453

Interest expense

$

(3,670

)

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements	'
Schedule of assets and liabilities measured at fair value on a recurring basis with pricing levels as of the date of valuation	'
	The following table presents our assets and liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013, with pricing levels as of the date of valuation (in thousands):
		September 30, 2014							December 31, 2013
		(Level 1)		(Level 2)			(Level 3)		(Level 1)		(Level 2)			(Level 3)
	Interest rate swaps asset	$	—	$	2,925		$	—	$	—	$	322		$	—
	Interest rate swaps liability	—		(5,225		)	—		—		(3,374		)	—
Schedule of assets and liabilities measured at fair value on a nonrecurring basis with pricing levels as of the date of valuation	'
	The following table presents our assets and liabilities measured at fair value on a nonrecurring basis during the nine months ended September 30, 2014 and 2013, with pricing levels as of the date of valuation (in thousands):
		Nine Months Ended September 30, 2014							Nine Months Ended September 30, 2013
		(Level 1)		(Level 2)			(Level 3)		(Level 1)		(Level 2)			(Level 3)
	Impaired long-lived assets	$	—	$	—		$	865	$	—	$	—		$	927

Basis_of_Presentation_and_Summ3

Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Earnings (Loss) Per Common Unit	'	'	'	'	'
Net income	$18,103	$10,035	$42,794	$52,664	'
Less: General partner incentive distribution rights	-3,338	-1,746	-8,647	-4,842	'
Less: General partner 2% ownership interest	-293	-165	-678	-952	'
General partner units, interest (as a percent)	2.00%	2.00%	2.00%	2.00%	2.00%
Common units interest in net income	14,472	8,124	33,469	46,870	'
Less: Net income attributable to participating securities	-50	'	-149	'	'
Net income used in basic and diluted earnings per common unit	14,422	8,124	33,320	46,870	'
Adjustments to net income attributable to common unitholders for the diluted earnings per common unit calculation	0	0	0	0	'
Potential common units included in computing the dilutive potential common units used in dilutive earnings per common unit	'	'	'	'	'
Weighted average common units outstanding including participating securities (in units)	55,752	49,409	53,664	47,058	'
Less: Weighted average participating securities outstanding (in units)	-91	'	-81	'	'
Weighted average common units outstanding - used in basic earnings per common unit (in units)	55,661	49,409	53,583	47,058	'
Net dilutive potential common units issuable:	'	'	'	'	'
Phantom units (in units)	2	20	2	14	'
Weighted average common units and dilutive potential common units - used in diluted earnings per common unit (in units)	55,663	49,429	53,585	47,072	'
Carrying Amount	'	'	'	'	'
Financial Instruments	'	'	'	'	'
Total debt	1,220,013	'	1,220,013	'	757,955
Carrying Amount | Fixed rate debt	'	'	'	'	'
Financial Instruments	'	'	'	'	'
Total debt	690,013	'	690,013	'	344,955
Carrying Amount | Floating rate debt	'	'	'	'	'
Financial Instruments	'	'	'	'	'
Total debt	530,000	'	530,000	'	413,000
Fair Value	'	'	'	'	'
Financial Instruments	'	'	'	'	'
Total debt	1,214,000	'	1,214,000	'	759,000
Fair Value | Fixed rate debt	'	'	'	'	'
Financial Instruments	'	'	'	'	'
Total debt	683,000	'	683,000	'	346,000
Fair Value | Floating rate debt	'	'	'	'	'
Financial Instruments	'	'	'	'	'
Total debt	$531,000	'	$531,000	'	413,000

August_2014_MidCon_Acquisition2

August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition (Details) (USD $)

9 Months Ended

1 Months Ended

9 Months Ended

0 Months Ended

2 Months Ended

9 Months Ended

0 Months Ended

6 Months Ended

9 Months Ended

0 Months Ended

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Apr. 30, 2014

Apr. 30, 2014

Sep. 30, 2014

Aug. 08, 2014

Sep. 30, 2014

Sep. 30, 2014

Aug. 08, 2014

Aug. 08, 2014

Aug. 08, 2014

Aug. 08, 2014

Apr. 10, 2014

Sep. 30, 2014

Sep. 30, 2014

Apr. 10, 2014

Apr. 10, 2014

Apr. 10, 2014

Apr. 10, 2014

2014 Notes

2014 Notes

Common units

Common units

August 2014 MidCon Acquisition

August 2014 MidCon Acquisition

August 2014 MidCon Acquisition

August 2014 MidCon Acquisition

August 2014 MidCon Acquisition

August 2014 MidCon Acquisition

August 2014 MidCon Acquisition

April 2014 MidCon Acquisition

April 2014 MidCon Acquisition

April 2014 MidCon Acquisition

April 2014 MidCon Acquisition

April 2014 MidCon Acquisition

April 2014 MidCon Acquisition

April 2014 MidCon Acquisition

hp

Customer related

Contract based

BHP Billiton

Wholly-owned subsidiary of Exterran Holdings

hp

Customer related

Contract based

Access

Wholly-owned subsidiary of Exterran Holdings

CompressorUnit

CompressorUnit

August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of compressor units acquired

'

'

'

'

'

'

162

'

'

'

'

'

'

337

'

'

'

'

'

'

Horsepower of compressor units acquired

'

'

'

'

'

'

110,000

'

'

'

'

'

'

444,000

'

'

'

'

'

'

Purchase consideration

$483,012,000

'

'

'

'

'

$130,100,000

'

'

'

'

'

$4,100,000

$352,900,000

'

'

'

'

'

$7,700,000

Units sold

'

'

'

'

6,210,000

6,210,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Principle amount of senior notes

'

'

'

350,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate (as a percent)

'

'

6.00%

6.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contract operations services agreement term

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'7 years

'

Transaction costs

'

'

'

'

'

'

'

'

900,000

'

'

'

'

'

'

1,500,000

'

'

'

'

Preliminary fair value of acquired assets and liabilities assumed as of the acquisition date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, plant and equipment

'

'

'

'

'

'

78,356,000

'

'

'

'

'

'

311,270,000

'

'

'

'

'

'

Goodwill

127,757,000

124,019,000

'

'

'

'

3,738,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Intangible assets

'

'

'

'

'

'

48,373,000

'

'

'

'

'

'

42,474,000

'

'

'

'

'

'

Current liabilities

'

'

'

'

'

'

-372,000

'

'

'

'

'

'

-827,000

'

'

'

'

'

'

Purchase price

'

'

'

'

'

'

130,095,000

'

'

'

'

'

'

352,917,000

'

'

'

'

'

'

Estimated average remaining useful life

'

'

'

'

'

'

'24 years

'

'

'

'

'

'

'25 years

'

'

'

'

'

'

Total acquired identifiable intangible assets

'

'

'

'

'

'

48,373,000

'

'

21,590,000

26,783,000

'

'

42,474,000

'

'

4,701,000

37,773,000

'

'

Average Useful Life

'

'

'

'

'

'

'

'

'

'25 years

'5 years

'

'

'

'

'

'25 years

'7 years

'

'

Pro forma financial information

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenue attributable to assets acquired from date of acquisition to period end

'

'

'

'

'

'

'

$3,400,000

'

'

'

'

'

'

$42,700,000

'

'

'

'

'

August_2014_MidCon_Acquisition3

August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition (Details 2) (USD $)

3 Months Ended

9 Months Ended

1 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

0 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Apr. 30, 2014

Apr. 30, 2014

Apr. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Apr. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Mar. 31, 2013

Sep. 30, 2013

Mar. 31, 2013

Mar. 31, 2013

Apr. 10, 2014

Aug. 08, 2014

Revolving credit facility

2014 Notes

Common units

Common units

Common units

General partner units

General partner units

General partner units

March 2013 Contract Operations Acquisition

March 2013 Contract Operations Acquisition

March 2013 Contract Operations Acquisition

March 2013 Contract Operations Acquisition

April 2014 MidCon Acquisition

August 2014 MidCon Acquisition

hp

Common units

General partner units

hp

hp

customer

CompressorUnit

CompressorUnit

CompressorUnit

August 2014 MidCon Acquisition, April 2014 MidCon Acquisition and March 2013 Contract Operations Acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of customers with service agreements

'

'

'

'

'

'

'

'

'

'

'

'

50

'

'

'

'

'

Number of compressor units used to provide compression services

'

'

'

'

'

'

'

'

'

'

'

'

363

'

'

'

'

'

Horsepower of compressor units used to provide compression services

'

'

'

'

'

'

'

'

'

'

'

'

256,000

'

'

'

'

'

Percentage of available horsepower of the combined U.S. contract operations business of Exterran Holdings and entity from service agreements acquired

'

'

'

'

'

'

'

'

'

'

'

'

8.00%

'

'

'

'

'

Number of compressor units acquired

'

'

'

'

'

'

'

'

'

'

'

'

204

'

'

'

337

162

Horsepower of compressor units acquired

'

'

'

'

'

'

'

'

'

'

'

'

99,000

'

'

'

444,000

110,000

Horsepower of compressor units owned and used to provide service under contracts

'

'

'

'

'

'

'

'

'

'

'

'

6,000

'

'

'

'

'

Net book value of fleet assets acquired

'

'

'

'

'

'

'

'

'

'

'

'

$158,500,000

'

'

'

$311,270,000

$78,356,000

Accumulated depreciation of fleet assets acquired

'

'

'

'

'

'

'

'

'

'

'

'

94,900,000

'

'

'

'

'

Total consideration, excluding transaction costs

'

'

'

'

'

'

'

'

'

'

'

'

174,000,000

'

'

'

'

'

Units issued in connection with acquisition (in units)

'

'

'

'

'

'

'

'

7,123,527

'

'

144,644

'

'

7,100,000

145,000

'

'

Finite life intangible assets associated with customer relationships

'

'

'

'

'

'

'

'

'

'

'

'

3,100,000

'

'

'

'

'

Capital distributions

'

'

95,581,000

78,856,000

'

'

'

86,529,000

73,051,000

'

9,052,000

5,805,000

'

12,400,000

'

'

'

'

Issuance of common units to the public

'

'

'

'

'

'

6,210,000

6,210,000

'

'

'

'

'

'

'

'

'

'

Issuance of general partner unit to general partner

'

'

'

'

'

'

'

'

'

126,000

125,994

'

'

'

'

'

'

'

Principle amount of senior notes

'

'

'

'

'

350,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Payment for MidCon acquisition

'

'

483,012,000

'

'

'

'

'

'

'

'

'

'

'

'

'

352,900,000

130,100,000

Payments on revolving credit facility

'

'

'

'

157,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Pro forma financial information

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenue

155,475,000

144,414,000

457,710,000

442,981,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

17,823,000

13,448,000

45,482,000

65,806,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basic earnings per common unit (in dollars per unit)

$0.25

$0.20

$0.65

$1.06

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Diluted earnings per common unit (in dollars per unit)

$0.25

$0.20

$0.65

$1.06

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional pro forma reduction of net income allocable to the entity's limited partners

$0

$200,000

$0

$600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	0 Months Ended	3 Months Ended			9 Months Ended			12 Months Ended	13 Months Ended
	Apr. 10, 2014	Sep. 30, 2014	Apr. 10, 2014	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013	Mar. 31, 2013
		contract		contract	CompressorUnit		hp
					hp		CompressorUnit
					contract		contract
Property Leased to Parent Entity	'	'	'	'	'	'	'	'	'
Revenue - affiliates	'	$60,000	'	$91,000	$258,000	'	$327,000	'	'
Parent Company	'	'	'	'	'	'	'	'	'
Related party transactions	'	'	'	'	'	'	'	'	'
Amount of compression equipment purchased from related party	'	'	'	'	152,600,000	'	79,300,000	'	'
Amount of fabricated compression equipment purchased from related party and recorded in our consolidated balance sheet as property, plant and equipment at carrying values of related party	'	'	'	'	138,300,000	'	71,400,000	'	'
Excess amount over carrying value of fabricated compression equipment purchased from related party recorded as distribution of equity	'	'	'	'	14,300,000	'	7,900,000	'	'
Amount contributed by related party related to completion of overhauls on compression equipment	'	'	'	'	4,600,000	'	18,700,000	'	'
Number of compressor units transferred to a related party	'	'	'	'	349	'	231	'	'
Horsepower of compressor units transferred to related party	'	'	'	'	176,300	'	102,800	'	'
Net book value of compressor units transferred to related party	'	'	'	'	74,400,000	'	45,500,000	'	'
Number of compressor units transferred by related party	'	'	'	'	354	'	235	'	'
Horsepower of compressor units transferred by related party	'	'	'	'	128,800	'	74,600	'	'
Net book value of compressor units transferred by related party	'	'	'	'	63,000,000	'	36,000,000	'	'
Capital distributions recorded related to differences in net book value of compressor units exchanged to our assets transferred to related party	'	'	'	'	11,400,000	'	9,500,000	'	'
Number of customer contracts that were included in the transfers	'	0	'	0	0	'	0	'	'
Property Leased to Parent Entity	'	'	'	'	'	'	'	'	'
Lease equipment, aggregate cost	'	600,000	'	'	600,000	'	'	'	'
Lease equipment, accumulated depreciation	'	100,000	'	'	100,000	'	'	'	'
Revenue - affiliates	'	'	'	'	300,000	'	300,000	'	'
Cost of sales related to lease	'	'	'	'	3,800,000	'	4,400,000	'	'
Net book value of compression equipment sold to related party	'	'	'	'	'	'	1,300,000	'	'
Compression equipment sold	'	'	'	'	'	'	3,400,000	'	'
Capital contribution recorded related to difference between the sale price and carrying value of the compression equipment assets sold	'	'	'	'	'	'	2,100,000	'	'
Allocated cost charged by parent entity	'	'	'	'	'	'	'	'	'
Cost of sales cap amount per operating horsepower per quarter, 2013	'	'	'	'	'	'	'	21.75	'
Cost of sales cap amount per operating horsepower per quarter, 2014	'	'	'	'	22.5	'	'	'	'
SG&A costs cap amount per quarter	'	'	15,000,000	'	'	12,500,000	'	'	10,500,000
SG&A costs cap amount per quarter, from April 10, 2014 through December 31, 2014	17,700,000	'	'	'	'	'	'	'	'
Excess of cost of sales over cap amount included in cost of sales	'	'	'	3,200,000	2,500,000	'	8,400,000	'	'
Excess of SG&A expenses over cap amount included in SG&A expense	'	$2,700,000	'	$4,200,000	$7,700,000	'	$8,400,000	'	'

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)

9 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Mar. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Apr. 30, 2014

Sep. 30, 2014

Apr. 30, 2014

Apr. 30, 2014

Apr. 30, 2014

Apr. 30, 2014

Mar. 31, 2013

Mar. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

6% senior notes due April 2021

6% senior notes due April 2021

6% senior notes due April 2021

6% senior notes due October 2022

6% senior notes due October 2022

6% senior notes due October 2022

6% senior notes due October 2022

6% senior notes due October 2022

6% senior notes due October 2022

Revolving credit facility and term loan facility

Revolving credit facility

Revolving credit facility

Revolving credit facility due May 2018

Revolving credit facility due May 2018

Term loan facility due May 2018

Term loan facility due May 2018

Prior to April 1, 2017

Twelve month period beginning April 1, 2018

Twelve month period beginning April 1, 2019

Beginning April 1, 2020 and thereafter

item

Long-Term Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt

$1,220,013,000

'

$757,955,000

'

$345,381,000

$344,955,000

'

$344,632,000

'

'

'

'

'

'

'

$380,000,000

$263,000,000

$150,000,000

$150,000,000

Reduction in borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000,000

'

'

'

'

'

Maximum borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

650,000,000

'

'

'

'

'

Interest rate (as a percent)

'

'

'

6.00%

6.00%

6.00%

6.00%

6.00%

'

'

'

'

'

'

'

'

'

'

'

Write-off of deferred financing costs

'

'

'

'

'

'

'

'

'

'

'

'

700,000

'

'

'

'

'

'

Transaction costs

'

'

'

7,600,000

'

'

6,900,000

'

'

'

'

'

4,300,000

'

'

'

'

'

'

Undrawn capacity under revolving credit facility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

270,000,000

'

'

'

'

Available borrowings under revolving credit facility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

270,000,000

'

'

'

'

Principle amount of senior notes

'

'

'

350,000,000

'

'

350,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Net proceeds from borrowings of long-term debt after original issuance discount and issuance costs

793,798,000

923,536,000

'

336,900,000

'

'

337,400,000

'

'

'

'

'

'

'

'

'

'

'

'

Unamortized debt issuance discount

'

'

'

5,500,000

4,600,000

5,000,000

5,700,000

5,400,000

'

'

'

'

'

'

'

'

'

'

'

Effective interest rate (as a percent)

'

'

'

6.25%

'

'

6.25%

'

'

'

'

'

'

'

'

'

'

'

'

Maximum registration period

'

'

'

'

'

'

'365 days

'

'

'

'

'

'

'

'

'

'

'

'

Maximum percentage of the aggregate principal amount of debt instruments that may be redeemed prior to 2017

'

'

'

'

'

'

'

'

35.00%

'

'

'

'

'

'

'

'

'

'

Minimum number of equity offerings

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

Redemption price as percentage of principal amount

'

'

'

'

'

'

'

'

106.00%

103.00%

101.50%

100.00%

'

'

'

'

'

'

'

Minimum notes remaining outstanding if notes redeemed prior to 2017 (as a percent)

'

'

'

'

'

'

'

'

65.00%

'

'

'

'

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

'

'

Ownership percentage (as a percent)

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of independent assets or operations

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash_Distributions_Details

Cash Distributions (Details) (USD $)

0 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Aug. 14, 2014

15-May-14

Feb. 14, 2014

Nov. 14, 2013

Aug. 14, 2013

15-May-13

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Oct. 28, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Subsequent Event

Common units

Common units

Common units

Common units

Common units

General partner units

General partner units

General partner units

General partner units

General partner units

First order of cash distribution

Second order of cash distribution

Third order of cash distribution

Fourth order of cash distribution

Thereafter order of cash distribution

First order of cash distribution

Second order of cash distribution

Third order of cash distribution

Fourth order of cash distribution

Thereafter order of cash distribution

Partners' Equity, Allocations and Cash Distributions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of operating surplus distributed to unitholders

'

'

'

'

'

'

'

'

'

'

'

98.00%

98.00%

85.00%

75.00%

50.00%

2.00%

2.00%

15.00%

25.00%

50.00%

Summary of distributions per unit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Distribution per Limited Partner Unit (in dollars per unit)

$0.54

$0.54

$0.53

$0.53

$0.52

$0.52

$0.54

$0.52

$1.61

$1.55

'

'

$0.40

$0.44

$0.53

'

'

$0.40

$0.44

$0.53

'

Total Distribution

$33,600,000

$33,100,000

$28,800,000

$28,300,000

$27,900,000

$27,600,000

'

'

$95,581,000

$78,856,000

'

'

'

'

'

'

'

'

'

'

'

Cash distribution declared (in dollars per unit)

'

'

'

'

'

'

'

'

'

'

$0.55

'

'

'

'

'

'

'

'

'

'

Cash distribution amount declared

'

'

'

'

'

'

'

'

'

'

$34,800,000

'

'

'

'

'

'

'

'

'

'

UnitBased_Compensation_Details

Unit-Based Compensation (Details) (Long-Term Incentive Plan)	Sep. 30, 2014
Long-Term Incentive Plan	'
Unit-Based Compensation	'
Maximum number of shares available under the Plan	1,035,378

UnitBased_Compensation_Details1

Unit-Based Compensation (Details 2) (USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014
Phantom Units	'
Phantom units outstanding at the beginning of the period (in units)	85,361
Granted (in units)	54,896
Vested (in units)	-45,369
Phantom units outstanding at the end of the period (in units)	94,888
Weighted Average Grant-Date Fair Value per Unit	'
Phantom units outstanding at the beginning of the period (in dollars per unit)	$23.72
Granted (in dollars per unit)	$30.50
Vested (in dollars per unit)	$24.69
Phantom units outstanding at the end of the period (in dollars per unit)	$27.18
Unrecognized compensation cost	'
Expected unrecognized compensation cost related to unvested phantom units (in dollars)	$2
Weighted-average period during which the expected unrecognized compensation cost related to unvested phantom units to be recognized	'2 years

Accounting_for_Derivatives_Det

Accounting for Derivatives (Details) (USD $)	9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Dec. 31, 2013	31-May-13	Sep. 30, 2014	Sep. 30, 2014
			Interest rate hedges	Interest rate hedges	Interest rate hedges	Interest rate hedges	Interest rate hedges	Interest rate hedges	Interest rate hedges	Interest rate hedges	Interest rate hedges
			Designated as a hedging instrument	Designated as a hedging instrument	Designated as a hedging instrument	Designated as a hedging instrument	Designated as a hedging instrument	Designated as a hedging instrument	Terminated hedge, May 2013	Derivative expiring in 2018	Derivative expiring in 2019
					Intangible and other assets, net	Intangible and other assets, net	Current portion of interest rate swaps	Current portion of interest rate swaps		Designated as a hedging instrument	Designated as a hedging instrument
Accounting for Derivatives	'	'	'	'	'	'	'	'	'	'	'
Notional value of interest rate swap entered into during the period	'	'	$150,000,000	'	'	'	'	'	'	'	'
Notional amount of interest rate swaps	'	'	400,000,000	'	'	'	'	'	250,000,000	300,000,000	100,000,000
Weighted average effective fixed interest rate on interest rate swaps (as a percent)	'	'	1.60%	'	'	'	'	'	'	'	'
Interest income recorded due to ineffectiveness related to interest rate swaps	0	0	'	'	'	'	'	'	'	'	'
Deferred pre-tax loss to be reclassified during next 12 months	5,500,000	'	'	'	'	'	'	'	'	'	'
Derivatives asset designated as hedging instruments, Fair value	'	'	'	'	2,925,000	322,000	'	'	'	'	'
Derivatives liability designated as hedging instruments, Fair value	'	'	'	'	'	'	-5,225,000	-3,374,000	-8,800,000	'	'
Total derivatives, Fair value	'	'	($2,300,000)	($3,052,000)	'	'	'	'	'	'	'

Accounting_for_Derivatives_Det1

Accounting for Derivatives (Details 2) (Interest rate hedges, Derivatives designated as cash flow hedges, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Effect of derivative instruments on results of operations	'	'	'	'
Gain (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives	$846	($2,247)	($2,283)	$2,453
Interest Expense	'	'	'	'
Effect of derivative instruments on results of operations	'	'	'	'
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss)	($1,213)	($985)	($3,228)	($3,670)

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2013
		Recurring basis	Recurring basis	Nonrecurring basis	Nonrecurring basis
		Level 2	Level 2	Level 3	Level 3
Fair value measurements	'	'	'	'	'
Interest rate swaps asset	'	$2,925	$322	'	'
Interest rate swaps liability	'	-5,225	-3,374	'	'
Impaired long-lived assets	'	'	'	$865	$927
Weighted average disposal period used in estimation of the fair value of the impaired long-lived assets	'4 years	'	'	'	'
Discount rate used in estimation of the fair value of the impaired long-lived assets (as a percent)	9.00%	'	'	'	'

LongLived_Asset_Impairment_Det

Long-Lived Asset Impairment (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Long-lived asset impairment	'	'	'	'
Long-lived asset impairment	$3,558	$784	$8,035	$3,249
Idle compressor units	'	'	'	'
Long-lived asset impairment	'	'	'	'
Number of long-lived assets that the entity determined to retire and either sell or re-utilize key components	'	'	95	80
Horsepower of long-lived assets that the entity determined to sell or re-utilize key components	'	'	23,000	16,000
Long-lived asset impairment	'	'	7,400	3,200
Idle compressor units previously impaired	'	'	'	'
Long-lived asset impairment	'	'	'	'
Long-lived asset impairment	$600	'	'	'

Restructuring_Charges_Details

Restructuring Charges (Details) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014
Restructuring Charges	'	'
Restructuring charges	$125	$702

Unit_Transactions_Details

Unit Transactions (Details) (USD $)

9 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

1 Months Ended

In Thousands, except Share data, unless otherwise specified

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Apr. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Apr. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Mar. 31, 2013

Mar. 31, 2013

Common units

Common units

Common units

General partner units

General partner units

General partner units

Parent Company

March 2013 Contract Operations Acquisition

March 2013 Contract Operations Acquisition

Common units

General partner units

Unit Transactions

'

'

'

'

'

'

'

'

'

'

'

'

Units sold

'

'

'

6,210,000

6,210,000

'

'

'

'

'

'

'

Common units sold pursuant to over-allotment option (in units)

'

'

'

810,000

'

'

'

'

'

'

'

'

Net proceeds from sale of common units

$169,471

'

'

$169,500

'

'

'

'

'

'

'

'

General partner units sold

'

'

'

'

'

'

126,000

125,994

'

'

'

'

General partner units, interest (as a percent)

2.00%

2.00%

2.00%

'

'

'

2.00%

'

'

'

'

'

Net proceeds from issuance of general partner units

$3,573

'

'

'

'

'

$3,600

'

'

'

'

'

Units issued in connection with acquisition (in units)

'

'

'

'

'

7,123,527

'

'

144,644

'

7,100,000

145,000

Common units owned (in units)

'

'

'

'

'

'

'

'

'

19,618,918

'

'

General partner units owned (in units)

1,129,221

1,003,227

'

'

'

'

'

'

'

1,129,221

'

'

General partner's ownership interest in partnership (as a percent)

'

'

'

'

'

'

'

'

'

37.00%

'

'

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	9 Months Ended	21 Months Ended	33 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Oct. 09, 2014	Dec. 31, 2013
		case		item
Commitments and Contingencies	'	'	'	'	'
Number of heavy equipment statutes cases tried and completed in Texas state district court	'	3	'	'	'
Number of district court rulings for which oral arguments were made	'	'	'	2	'
Ad valorem tax benefit	$7.40	'	$17.90	'	'
Ad valorem tax benefit agreed to by a number of appraisal review boards and county appraisal districts	4.6	4.6	4.6	'	'
Ad valorem tax benefit in litigation	13.3	13.3	13.3	'	'
Accrued liability for the outcomes of non-income based tax audits	$0.10	$0.10	$0.10	'	$4.70