CSI Compressco (CCLP) 10-Q8 Aug 182018 Q2 Quarterly reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
Document And Entity Information - shares	Jun. 30, 2018	Aug. 08, 2018
Document Information [Line Items]
Entity Registrant Name	CSI Compressco LP
Entity Central Index Key	1,449,488
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Common Stock Shares Outstanding		42,584,712
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Deferred Costs and Other Assets	$ 1,916		$ 1,916
Weighted Average Limited Partnership Units Outstanding, Diluted		45,300,057		33,979,068
Revenues:
Compression and related services	56,709	$ 50,256	110,444	$ 100,753
Aftermarket services	15,094	10,529	29,110	19,916
Equipment and parts sales	28,119	14,530	45,785	20,198
Total revenues	99,922	75,315	185,339	140,867
Cost of revenues (excluding depreciation and amortization expense):
Cost of compression and related services	30,509	28,803	61,889	57,846
Cost of aftermarket services	12,841	8,461	23,998	16,083
Cost of equipment and parts sales	24,158	13,321	39,607	18,717
Total cost of revenues	67,508	50,585	125,494	92,646
Depreciation and amortization	17,448	17,204	34,815	34,499
Insurance Recoveries	0
Selling, general, and administrative expense	10,849	8,230	19,146	16,996
Interest expense, net	13,823	10,449	25,256	20,832
Liabilities, Fair Value Adjustment	(586)	(5,528)	967	(3,663)
Other expense, net	(378)	141	2,826	103
Income (loss) before income tax provision	(8,742)	(5,766)	(23,165)	(20,546)
Provision (benefit) for income taxes	850	606	2,164	1,419
Net income (loss)	(9,592)	(6,372)	(25,329)	(21,965)
General partner interest in net income (loss)	(154)	(127)	(418)	(439)
Common units interest in net income (loss)	$ (9,438)	$ (6,245)	$ (24,911)	$ (21,526)
Net income (loss) per common unit:
Basic	$ (0.23)	$ (0.18)	$ (0.63)	$ (0.63)
Earnings Per Share, Diluted	$ (0.23)	$ (0.21)	$ (0.63)	$ (0.63)
Weighted average common units outstanding:
Basic	40,401,551	34,470,736	39,563,972	33,979,068
Common Stock [Member]
Weighted Average Limited Partnership Units Outstanding, Diluted	40,401,551		39,563,972

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (9,592)	$ (6,372)	$ (25,329)	$ (21,965)
Foreign currency translation adjustment	(2,873)	(568)	(3,522)	(318)
Comprehensive income (loss)	$ (12,465)	$ (6,940)	$ (28,851)	$ (22,283)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 51,370	$ 7,601
Restricted Cash, Current	4,205	0
Trade accounts receivable, net of allowances for doubtful accounts	59,424	47,776
Inventories	65,456	42,283
Prepaid Expense and Other Assets, Current	5,012	4,487
Total current assets	185,467	102,147
Property, plant, and equipment:
Land and building	34,972	34,972
Compressors and equipment	862,426	846,615
Vehicles	10,635	10,837
Construction in progress	40,841	13,261
Total property, plant, and equipment	948,874	905,685
Less accumulated depreciation	(329,213)	(299,206)
Net property, plant, and equipment	619,661	606,479
Other assets:
Deferred tax asset	10	10
Intangible assets, net of accumulated amortization	32,459	33,942
Deferred Costs and Other Assets	1,916	354
Total other assets	34,385	34,306
Total assets	839,513	742,932
Current liabilities:
Accounts payable	22,040	21,661
Unearned income	28,441	15,526
Accrued liabilities and other	27,088	23,785
Amounts payable to affiliates	2,670	3,034
Total current liabilities	80,239	64,006
Other liabilities:
Long-term debt, net	632,492	512,176
Preferred Units	52,200	70,260
Deferred tax liabilities	1,381	1,403
Other long-term liabilities	95	60
Total other liabilities	686,168	583,899
Partners' capital:
General partner interest	947	1,618
Common units	87,170	104,898
Accumulated other comprehensive income (loss)	(15,011)	(11,489)
Total partners' capital	73,106	95,027
Total liabilities and partners' capital	$ 839,513	$ 742,932

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Trade accounts receivable, allowances for doubtful accounts	$ 838	$ 822
Patents, trademarks, and other intangible assets, accumulated amortization	$ 23,309	$ 21,829
Partners' capital:
Common units issued and outstanding	41,186,766	37,618,734

Consolidated Statements of Part

Consolidated Statements of Partners' Capital - 6 months ended Jun. 30, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	General Partner [Member]	Common Unitholders, Units [Member]	Common Unitholders [Member]	Accumulated Other Comprehensive Income [Member]
Beginning balance at Dec. 31, 2017	$ 95,027	$ 1,618		$ 104,898	$ (11,489)
Beginning balance, units at Dec. 31, 2017			37,618
Partners' capital rollforward
Net income	(25,329)	(418)		(24,911)	0
Distributions	(14,928)	(253)		(14,675)	0
Equity compensation	$ (299)	0		299	0
Vesting of phantom units (units)			128
Conversion of Stock, Shares Converted	3,441
Conversion of Stock, Amount Converted	$ 22,157		$ 22,157		0
Other comprehensive income (loss)	(3,522)	0		0	(3,522)
Ending balance at Jun. 30, 2018	$ 73,106	$ 947		$ 87,170	$ (15,011)
Ending balance, units at Jun. 30, 2018			41,187

Consolidated Statements of Par7

Consolidated Statements of Partners' Capital (Parenthetical)	Jun. 30, 2018$ / shares
Statement of Partners' Capital [Abstract]
Distributions	$ 0

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Cash Flows [Abstract]
Distributionstononcontrollingholders	$ (14,928)	$ (19,391)
Operating activities:
Net income	(25,329)	(21,965)
Reconciliation of net income to cash provided by operating activities:
Depreciation and amortization	34,815	34,499
Provision (benefit) for deferred income taxes	172	249
Equity compensation expense	(108)	1,891
Provision for doubtful accounts	322	612
Amortization of deferred financing costs	1,345	1,477
Payments of Financing Costs		0
Other non-cash charges and credits	366	338
(Gain) Loss on sale of property, plant, and equipment	24	(216)
Paid-in-Kind Interest	3,246	4,342
Liabilities, Fair Value Adjustment	967	(3,663)
Changes in operating assets and liabilities:
Accounts receivable	(13,150)	(401)
Inventories	(23,659)	(9,039)
Prepaid expenses and other current assets	(1,504)	(1,240)
Accounts payable and accrued expenses	15,145	4,434
Other	(466)	(1)
Net cash provided by operating activities	(4,273)	11,354
Investing activities:
Purchases of property, plant, and equipment, net	(47,262)	(11,477)
Advances and other investing activities	34	32
Net cash used in investing activities	(47,228)	(11,445)
Financing activities:
Proceeds from long-term debt, net	380,000	42,500
Payments of long-term debt	(258,000)	(37,300)
Proceeds from Convertible Debt		77,300
Financing costs	(7,662)	(1,348)
Net cash used in financing activities	99,410	(15,576)
Effect of exchange rate changes on cash	65	(110)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	47,974	(15,777)
Cash and cash equivalents at end of period	51,370	5,020
Supplemental cash flow information:
Interest paid	14,041	15,293
Income taxes paid	2,080	1,967
Offering Costs of Preferred Units	0	37
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	55,575	5,020
Proceeds from Issuance of Preferred Limited Partners Units	$ 0	$ (37)

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	6 Months Ended
Basis of Presentation and Significant Accounting Policies	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES CSI Compressco LP, a Delaware limited partnership, is a provider of compression services and equipment for natural gas and oil production, gathering, transportation, processing, and storage. We sell standard and custom-designed compressor packages and oilfield fluid pump systems, and provide aftermarket services and compressor package parts and components manufactured by third-party suppliers. We provide these compression services and equipment to a broad base of natural gas and oil exploration and production, midstream, and transmission companies operating throughout many of the onshore producing regions of the United States as well as in a number of foreign countries, including Mexico, Canada, and Argentina. We design and fabricate a majority of the compressor packages that we use to provide compression services and that we sell to customers. Presentation Our unaudited consolidated financial statements include the accounts of our wholly owned subsidiaries. All intercompany balances and transactions have been eliminated. In the opinion of our management, our unaudited consolidated financial statements as of June 30, 2018 , and for the three and six month periods ended June 30, 2018 and 2017 , include all normal recurring adjustments that are necessary to provide a fair statement of our results for these interim periods. Operating results for the three and six month periods ended June 30, 2018 are not necessarily indicative of results that may be expected for the twelve months ended December 31, 2018 . The accompanying unaudited consolidated financial statements have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the U.S. Securities and Exchange Commission ("SEC") and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. These financial statements should be read in connection with the financial statements for the year ended December 31, 2017 and notes thereto included in our Annual Report on Form 10-K, which we filed with the SEC on March 2, 2018 . Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclose contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues, expenses, and impairments during the reporting period. Actual results could differ from those estimates, and such differences could be material. Reclassifications Certain previously reported financial information has been reclassified to conform to the current year period’s presentation. The impact of such reclassifications was not significant to the prior year period’s overall presentation. Cash Equivalents We consider all highly liquid cash investments with maturities of three months or less when purchased to be cash equivalents. Restricted Cash Restricted cash is classified as a current asset when it is expected to be repaid or settled in the next twelve month period. Restricted cash as of June 30, 2018 consists of cash used to secure outstanding letters of credit. Foreign Currencies We have designated the Canadian dollar and Argentine peso as the functional currencies for our operations in Canada and Argentina, respectively. We are exposed to fluctuations between the U.S. dollar and certain foreign currencies, including the Canadian dollar, the Mexican peso, and the Argentine peso, as a result of our international operations. Foreign currency exchange gains and losses are included in other (income) expense, net and totaled $0.5 million and $(0.6) million during the three and six month periods ended June 30, 2018 , respectively, and $(0.2) million and $(0.4) million during the three and six month periods ended June 30, 2017 , respectively. On June 30, 2018, we determined the economy in Argentina to be highly inflationary. As a result of this determination, beginning July 1, 2018, our reporting of our operations in Argentina will reflect the remeasurement of the functional currency from the Argentine peso to the U.S. dollar. Inventories Inventories consist primarily of compressor package parts and supplies and work in progress and are stated at the lower of cost or net realizable value. For parts and supplies, cost is determined using the weighted average cost method. The cost of work in progress is determined using the specific identification method. Work in progress inventories consist primarily of new compressor packages located at our fabrication facility in Midland, Texas. Components of inventories as of June 30, 2018 and December 31, 2017 , are as follows: June 30, 2018 December 31, 2017 (In Thousands) Parts and supplies $ 42,100 $ 31,703 Work in progress 23,356 10,580 Total inventories $ 65,456 $ 42,283 We write down the value of inventory by an amount equal to the difference between its cost and its estimated net realizable value. Earnings Per Common Unit Our computations of earnings per common unit are based on the weighted average number of common units outstanding during the applicable period. Basic earnings per common unit are determined by dividing net income (loss) allocated to the common units after deducting the amount allocated to our General Partner (including any distributions to our General Partner on its incentive distribution rights) by the weighted average number of outstanding common units during the period. When computing earnings per common unit when distributions are greater than earnings, the amount of the distribution is deducted from net income (loss) and the excess of distributions over earnings is allocated between the General Partner and common units based on how our Partnership Agreement allocates net losses. When earnings are greater than distributions, we determine cash distributions based on available cash and determine the actual incentive distributions allocable to our General Partner based on actual distributions. When computing earnings per common unit, the amount of the assumed incentive distribution rights, if any, is deducted from net income and allocated to our General Partner for the period to which the calculation relates. The remaining amount of net income, after deducting the assumed incentive distribution rights, is allocated between the General Partner and common units based on how our Partnership Agreement allocates net earnings. Diluted earnings per common unit are computed using the treasury stock method, which considers the potential future issuance of limited partner common units. Unvested phantom units are not included in basic earnings per common unit, as they are not considered to be participating securities, but are included in the calculation of diluted earnings per common unit. For the three and six month periods ended June 30, 2018 and June 30, 2017 , all unvested phantom units were excluded from the calculation of diluted common units because the impact was anti-dilutive. Following the August and September 2016 issuances of the Series A Convertible Preferred Units (the "Preferred Units"), diluted earnings per common unit are computed using the "if converted" method, whereby the amount of net income (loss) and the number of common units issuable are each adjusted as if the Preferred Units had been converted as of the beginning of the period presented. The number of common units that may be issued upon future conversion of the Preferred Units is excluded from the calculation of diluted common units for the three and six month periods ended June 30, 2018 as the impact would be anti-dilutive. Three Months Ended Six Months Ended 2018 2017 2018 2017 (In Thousands) Common unit interest in net income (loss) $ (9,438 ) $ (6,245 ) $ (24,911 ) $ (21,526 ) Assumed conversion of Preferred Units impact on common unit interest in net income (loss) — (5,430 ) — — Common unit interest in net income (loss) after assumed conversion of Preferred Units $ (9,438 ) $ (11,675 ) $ (24,911 ) $ (21,526 ) Weighted average common units outstanding - Basic 40,401,551 34,470,736 39,563,972 33,979,068 Assumed conversion of Preferred Units — 10,829,321 — — Weighted average common units outstanding - Diluted 40,401,551 45,300,057 39,563,972 33,979,068 Accumulated Other Comprehensive Income (Loss) Certain of our international operations maintain their accounting records in the local currencies that are their functional currencies. For these operations, the functional currency financial statements are converted to United States dollar equivalents, with the effect of the foreign currency translation adjustment reflected as a component of accumulated other comprehensive income (loss). Accumulated other comprehensive income (loss) is included in partners’ capital in the accompanying consolidated balance sheets and consists of the cumulative currency translation adjustments associated with such international operations. Activity within accumulated other comprehensive income (loss) during the three and six month periods ended June 30, 2018 and 2017 , is as follows: Three Months Ended Six Months Ended 2018 2017 2018 2017 (In Thousands) Balance, beginning of period $ (12,138 ) $ (10,161 ) $ (11,489 ) $ (10,411 ) Foreign currency translation adjustment (2,873 ) (568 ) (3,522 ) (318 ) Balance, end of period $ (15,011 ) $ (10,729 ) $ (15,011 ) $ (10,729 ) Activity within accumulated other comprehensive income includes no reclassifications to net income (loss). Allocation of Net Income (Loss) Our net income (loss) is allocated to partners’ capital accounts in accordance with the provisions of our partnership agreement. Distributions On January 22, 2018 , our General Partner declared a cash distribution attributable to the quarter ended December 31, 2017 of $0.1875 per common unit. This distribution equates to a distribution of $0.75 per outstanding common unit on an annualized basis. Also on January 22, 2018 , our General Partner approved the paid in kind distribution of 172,210 Preferred Units attributable to the quarter ended December 31, 2017 in accordance with the provisions of our partnership agreement, as amended. These distributions were paid on February 14, 2018 , to each of the holders of common units and the holders of the Preferred Units in the aggregate, respectively, of record as of the close of business on February 1, 2018 . On April 20, 2018 , our General Partner declared a cash distribution attributable to the quarter ended March 31, 2018 of $0.1875 per common unit. This distribution equates to a distribution of $0.75 per outstanding common unit on an annualized basis. Also on April 20, 2018 , our General Partner approved the paid in kind distribution of 152,381 Preferred Units attributable to the quarter ended March 31, 2018 in accordance with the provisions of our partnership agreement, as amended. These distributions were paid on May 15, 2018 to each of the holders of common units and to the holders of the Preferred Units in the aggregate, respectively, of record as of the close of business on May 1, 2018 . On July 20, 2018 , our General Partner declared a cash distribution attributable to the quarter ended June 30, 2018 of $0.1875 per common unit. This distribution equates to a distribution of $0.75 per outstanding common unit on an annualized basis. Also on July 20, 2018 , our General Partner approved the paid in kind distribution of 131,569 Preferred Units attributable to the quarter ended June 30, 2018 in accordance with the provisions of our partnership agreement, as amended. These distributions will be paid on August 14, 2018 to each of the holders of common units and to the holders of the Preferred Units in the aggregate, respectively, of record as of the close of business on August 1, 2018 . Fair Value Measurements Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date” within an entity’s principal market, if any. The principal market is the market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity, regardless of whether it is the market in which the entity will ultimately transact for a particular asset or liability or if a different market is potentially more advantageous. Accordingly, this exit price concept may result in a fair value that may differ from the transaction price or market price of the asset or liability. Under U.S. generally accepted accounting principles ("GAAP"), the fair value hierarchy prioritizes inputs to valuation techniques used to measure fair value. Fair value measurements should maximize the use of observable inputs and minimize the use of unobservable inputs, where possible. Observable inputs are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs may be needed to measure fair value in situations where there is little or no market activity for the asset or liability at the measurement date and are developed based on the best information available in the circumstances, which could include the reporting entity’s own judgments about the assumptions market participants would utilize in pricing the asset or liability. We utilize fair value measurements to account for certain items and account balances within our consolidated financial statements. Fair value measurements are utilized in the determination of the carrying value of our Preferred Units (a Level 3 fair value measurement), which were issued in August and September of 2016. We also utilize fair value measurements on a recurring basis in the accounting for our foreign currency forward purchase and sale derivative contracts. For these fair value measurements, we utilize the quoted value as determined by our counterparty financial institution (a level 2 fair value measurement). Fair value measurements are also utilized on a nonrecurring basis, such as in the allocation of purchase consideration for acquisition transactions to the assets and liabilities acquired, including intangible assets (a Level 3 fair value measurement) and for the impairment of long-lived assets (a level 3 fair value measurement). The fair value of certain of our financial instruments, which may include cash, accounts receivable, short-term borrowings, and variable-rate long-term debt pursuant to our bank credit agreement, approximate their carrying amounts. The fair values of our publicly traded long-term 7.25% Senior Notes at June 30, 2018 and December 31, 2017 were approximately $271.5 million and $279.7 million , respectively. Those fair values compare to aggregate principal amounts of such notes at June 30, 2018 and December 31, 2017 of $295.9 million . The fair value of our publicly traded long-term 7.50% Senior Secured Notes at June 30, 2018 was approximately $351.8 million . This fair value compares to an aggregate principal amount of such notes at June 30, 2018 of $350.0 million . We based the fair values of our 7.25% Senior Notes and our 7.50% Senior Secured Notes as of June 30, 2018 on recent trades for these notes (a level 1 fair value measurement). The Preferred Units are valued using a lattice modeling technique that, among a number of lattice structures, includes significant unobservable items. These unobservable items include (i) the volatility of the trading price of our common units compared to a volatility analysis of equity prices of comparable peer companies, (ii) a yield analysis that utilizes market information related to the debt yields of comparable peer companies, and (iii) a future conversion price analysis. The fair value of our Preferred Units liability is increased by, among other factors, projected increases in our common unit price, and by increases in the volatility and decreases in the debt yields of comparable peer companies. Increases (or decreases) in the fair value of our Preferred Units will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). A summary of these recurring fair value measurements as of June 30, 2018 and December 31, 2017 is as follows: Fair Value Measurements Using Description Total as of Quoted Prices Significant Significant (In Thousands) Series A Preferred Units $ (52,200 ) $ — $ — $ (52,200 ) Liability for foreign currency derivative contracts (241 ) — (241 ) — $ (52,441 ) Fair Value Measurements Using Quoted Prices Significant Significant Description Total as of (In Thousands) Series A Preferred Units $ (70,260 ) $ — $ — $ (70,260 ) Asset for foreign currency derivative contracts 130 — 130 — Liability for foreign currency derivative contracts (10 ) — (10 ) — $ (70,140 ) New Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, "Revenue from Contracts with Customers." This ASU supersedes the revenue recognition requirements in ASC 605, "Revenue Recognition", and most industry-specific guidance. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those years, under either full or modified retrospective adoption. On January 1, 2018, we adopted ASU 2014-09 and all related amendments ("ASU 2014-09"). We utilized the modified retrospective method of adoption. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The core principle of ASU 2014-09 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. ASU 2014-09 also provides a five-step model for determining revenue recognition for arrangements that are within the scope of the standard: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. We only apply the five-step model to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services we transfer to the customer. At contract inception, once the contract is determined to be within the scope of ASU 2014-09, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. For a complete discussion of accounting for revenues, see Note I - Revenue Recognition. The impact from the adoption of ASU 2014-09 to our January 1, 2018 consolidated balance sheet, our June 30, 2018 consolidated balance sheet, and our consolidated results of operations for the three and six month periods ended June 30, 2018 was immaterial. The adoption of ASU 2014-09 had no impact to cash provided by operating, financing, or investing activities in our consolidated statement of cash flows. We do not expect the adoption of the new revenue standard to have a material impact to our net income on an ongoing basis. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)" to increase comparability and transparency among different organizations. Organizations are required to recognize right-of-use lease assets and lease liabilities in the balance sheet related to the right to use the underlying asset for the lease term. In addition, through improved disclosure requirements, the ASU will enable users of financial statements to further understand the amount, timing, and uncertainty of cash flows arising from leases. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods, with early adoption permitted, under a modified retrospective adoption. We are currently assessing the potential effects of these changes to our consolidated financial statements. Our current operating lease portfolio consists primarily of real estate, vehicles, and equipment leases. Based on our preliminary assessment, upon adoption of the ASU we will record significant right-to-use assets and lease obligations pursuant to the new requirements. We are evaluating our portfolio of existing leases for consideration of the accounting impact of each lease. We are also evaluating and are developing internal policies to address the requirements under this ASU. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." ASU 2016-13 amends the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, which will result in the more timely recognition of losses. ASU 2016-13, which has an effective date of the first quarter of fiscal 2022, also applies to employee benefit plan accounting. We are currently assessing the potential effects of these changes to our consolidated financial statements and employee benefit plan accounting. In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" to reduce diversity in practice in classification of certain transactions in the statement of cash flows. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements. In November 2016, the FASB issued ASU 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory" which requires companies to account for the income tax effects of intercompany transfers of assets other than inventory when the transfer occurs. We adopted this ASU during the three month period ended March 31, 2018. The adoption of this standard did not have a material impact to our consolidated financial statements due to a previously recorded valuation allowance on our net deferred tax assets. Additionally, in November 2016, the FASB issued ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" to reduce diversity in the presentation of restricted cash and restricted cash equivalents in the statement of cash flows. We adopted this ASU during the three month period ended March 31, 2018, resulting in restricted cash being classified with cash and cash equivalents in our consolidated statement of cash flows for all periods presented. In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting" to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements. In July 2017, the FASB issued ASU 2017-11, "Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815): (Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception" to consider “down round” features when determining whether certain equity-linked financial instruments or embedded features are indexed to an entity’s own stock. Entities that present earnings per share ("EPS") under ASC 260 will recognize the effect of a down round feature in a freestanding equity-classified financial instrument only when it is triggered. The effect of triggering such a feature will be recognized as a dividend and a reduction to income available to common shareholders in basic EPS. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" to change how companies account for and disclose hedges. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements. In June 2018, the FASB issued ASU 2018-07, “Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting” to align the measurement and classification guidance for share-based payments to nonemployees with the guidance currently applied to employees, with certain exceptions. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods, with early adoption permitted. We are currently assessing the potential effects of these changes to our consolidated financial statements.

Long-Term Debt and Other Borrow

Long-Term Debt and Other Borrowings	6 Months Ended
Long-Term Debt and Other Borrowings	Jun. 30, 2018
Debt Disclosure [Abstract]
Long-Term Debt and Other Borrowings	LONG-TERM DEBT AND OTHER BORROWINGS Long-term debt consists of the following: June 30, 2018 December 31, 2017 Scheduled Maturity (In Thousands) Credit Agreement (presented net of the unamortized deferred financing costs of $4.0 million as of December 31, 2017), terminated on March 22, 2018 August 4, 2019 $ — $ 223,985 New Credit Agreement June 29, 2023 — — 7.25% Senior Notes (presented net of the unamortized discount of $2.5 million as of June 30, 2018 and $2.8 million as of December 31, 2017 and unamortized deferred financing costs of $4.4 million as of June 30, 2018 and $5.0 million as of December 31, 2017) August 15, 2022 288,989 288,191 7.50% Senior Secured Notes (presented net of the unamortized deferred financing costs of $6.5 million as of June 30, 2018) April 1, 2025 343,503 — 632,492 512,176 Less current portion — — Total long-term debt $ 632,492 $ 512,176 7.50% Senior Secured Notes On March 8, 2018 , we and CSI Compressco Finance Inc., a Delaware corporation and one of our wholly owned subsidiaries (we, together with CSI Compressco Finance Inc., the “Issuers”), and the guarantors named therein (the “Guarantors” and, together with the Issuers, the "Obligors"), entered into the Purchase Agreement (the “Purchase Agreement”) with Merrill Lynch, Pierce, Fenner & Smith Incorporated as representative of the initial purchasers listed in Schedule A thereto (collectively, the “Initial Purchasers”), pursuant to which the Issuers agreed to issue and sell to the Initial Purchasers $350 million aggregate principal amount of the Issuers’ 7.50% Senior Secured First Lien Notes due 2025 (the “ 7.50% Senior Secured Notes”) (the "Offering") pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the "Securities Act"). The Issuers closed the Offering on March 22, 2018. The 7.50% Senior Secured Notes were issued at par for net proceeds of approximately $343.8 million , after deducting certain financing costs. We used a portion of the net proceeds to repay in full and terminate our existing bank Credit Agreement and we plan to use the remainder for general partnership purposes, including the expansion of our compression fleet . The 7.50% Senior Secured Notes are jointly and severally, and fully and unconditionally, guaranteed (the "Guarantees" and, together with the 7.50% Senior Secured Notes, the "Securities") on a senior secured basis initially by each of our domestic restricted subsidiaries (other than CSI Compressco Finance Inc., certain immaterial subsidiaries, and certain other excluded domestic subsidiaries) and are secured by a first-priority security interest in substantially all of the Issuers' and the Guarantors' assets (other than certain excluded assets) (the "Collateral") as collateral security for their obligations under the 7.50% Senior Secured Notes, subject to certain permitted encumbrances and exceptions. On the closing date, we entered into an indenture (the "Indenture") by and among the Obligors and U.S. Bank National Association, as trustee with respect to the Securities. The 7.50% Senior Secured Notes accrue interest at a rate of 7.50% per annum. Interest on the 7.50% Senior Secured Notes is payable semi-annually in arrears on April 1 and October 1 of each year, beginning October 1, 2018. The 7.50% Senior Secured Notes are scheduled to mature on April 1, 2025. In connection with the Offering, we incurred total financing costs of $6.7 million related to the 7.50% Senior Secured Notes. These costs are deferred, netting against the carrying value of the amount outstanding. On and after April 1, 2021, we may redeem all or a part of the 7.50% Senior Secured Notes , from time to time, at the following redemption prices (expressed as a percentage of principal amount), plus accrued and unpaid interest thereon to, but not including, the applicable redemption date, subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date, if redeemed during the 12-month period beginning on April 1 of the years indicated below: Date Price 2021 105.625 % 2022 103.750 % 2023 101.875 % 2024 100.000 % In addition, at any time and from time to time before April 1, 2021, we may, at our option, redeem all or a portion of the 7.50% Senior Secured Notes at a redemption price equal to 100% of the principal amount thereof plus the Applicable Premium (as defined in the Indenture) with respect to the 7.50% Senior Secured Notes plus accrued and unpaid interest, if any, to, but not including, the applicable redemption date, subject to the rights of holders of 7.50% Senior Secured Notes on the relevant record date to receive interest due on the relevant interest payment date. Prior to April 1, 2021, we may on one or more occasions redeem up to 35% of the principal amount of the 7.50% Senior Secured Notes with an amount of cash not greater than the amount of the net cash proceeds from one or more equity offerings at a redemption price equal to 107.500% of the principal amount of the 7.50% Senior Secured Notes to be redeemed, plus accrued and unpaid interest, if any, to, but not including, the date of redemption, subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date, provided that (a) at least 65% of the aggregate principal amount of the 7.50% Senior Secured Notes originally issued on the issue date (excluding notes held by us and our subsidiaries) remains outstanding after each such redemption; and (b) the redemption occurs within 180 days after the date of the closing of the equity offering . If we experience certain kinds of changes of control, each holder of the 7.50% Senior Secured Notes will be entitled to require us to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess of $2,000) of that holder’s 7.50% Senior Secured Notes pursuant to an offer on the terms set forth in the Indenture. We will offer to make a cash payment equal to 101% of the aggregate principal amount of the 7.50% Senior Secured Notes repurchased plus accrued and unpaid interest, if any, on the 7.50% Senior Secured Notes repurchased to the date of repurchase, subject to the rights of holders of the 7.50% Senior Secured Notes on the relevant record date to receive interest due on the relevant interest payment date. The Indenture contains customary covenants restricting our ability and the ability of our restricted subsidiaries to: (i) pay distributions on, purchase, or redeem our common units or purchase or redeem any subordinated debt; (ii) incur or guarantee additional indebtedness or issue certain kinds of preferred equity securities; (iii) create or incur certain liens securing indebtedness; (iv) sell assets, including dispositions of the Collateral; (v) consolidate, merge, or transfer all or substantially all of our assets; (vi) enter into transactions with affiliates; and (vii) enter into agreements that restrict distributions or other payments from our restricted subsidiaries to us. These covenants are subject to a number of important limitations and exceptions, including certain provisions permitting us, subject to the satisfaction of certain conditions, to transfer assets to certain of our unrestricted subsidiaries. Moreover, if the 7.50% Senior Secured Notes receive an investment grade rating from at least two rating agencies and no default has occurred and is continuing under the Indenture, many of the restrictive covenants in the Indenture will be terminated. The Indenture also contains customary events of default and acceleration provisions relating to events of default, which provide that upon an event of default under the Indenture, the Trustee or the holders of at least 25% in aggregate principal amount of the then outstanding 7.50% Senior Secured Notes may declare all of the 7.50% Senior Secured Notes to be due and payable immediately . On March 22, 2018, we, the grantors named therein, the Trustee, and U.S. Bank National Association, as the collateral trustee (the “Collateral Trustee”), entered into a collateral trust agreement (the “Collateral Trust Agreement”) pursuant to which the Collateral Trustee will receive, hold, administer, maintain, enforce, and distribute the proceeds of all of its liens upon the collateral for the benefit of the current and future holders of the 7.50% Senior Secured Notes and any future priority lien obligations, if any. Bank Credit Facilities. On March 22, 2018, in connection with the closing of the Offering, we repaid all outstanding borrowings and obligations under our existing bank Credit Agreement with a portion of the net proceeds from the Offering, and terminated this Credit Agreement. As a result of the termination of the Credit Agreement, associated unamortized deferred financing costs of $3.5 million were charged to other (income) expense, net during the three month period ended March 31, 2018. On June 29, 2018, we and two of our wholly owned subsidiaries (collectively the "Borrowers"), and certain of our wholly owned subsidiaries named therein as guarantors (the "New Credit Agreement Guarantors"), entered into a Loan and Security Agreement (the "New Credit Agreement") with the lenders thereto (the "Lenders"), and Bank of America, N.A., in its capacity as administrative agent, collateral agent, letter of credit issuer, and swing line lender. All of the Borrowers' obligations under the New Credit Agreement are guaranteed by certain of their existing and future domestic subsidiaries. The New Credit Agreement includes a maximum credit commitment of $50.0 million available for loans, letters of credit (with a sublimit of $25.0 million) and swingline loans (with a sublimit of $5.0 million). Such maximum credit commitment may be increased by $25.0 million in accordance with the terms and conditions of the New Credit Agreement. The Borrowers may borrow funds under the New Credit Agreement to pay fees and expenses related to the New Credit Agreement and for the Borrower's ongoing working capital needs and for general partnership purposes. The revolving loans under the New Credit Agreement may be voluntarily prepaid, in whole or in part, without premium or penalty, subject to breakage or similar costs. The maturity date of the New Credit Agreement is June 29, 2023. As of June 30, 2018 , no balance was outstanding under the New Credit Agreement. Because there was no outstanding balance on the New Credit Agreement, associated deferred financing costs of $1.3 million as of June 30, 2018 , were classified as other assets in the accompanying consolidated balance sheet. Borrowings under the New Credit Agreement will bear interest at a rate per annum equal to, at the option of the Borrowers, either (i) London InterBank Offered Rate (“LIBOR”) (adjusted to reflect any required bank reserves) for an interest period equal to 30, 60, 90, 180, or 360 days (as selected by the Borrowers, subject to availability and with the consent of the Lenders for 360 days) plus a margin based on average daily excess availability or (ii) a base rate plus a margin based on average daily excess availability; such base rate shall be determined by reference to the highest of (a) the prime rate of interest announced from time to time by Bank of America, N.A., (b) the Federal Funds Rate (as defined in the New Credit Agreement) rate plus 0.5% per annum and (c) LIBOR (adjusted to reflect any required bank reserves) for a 30-day interest period on such day plus 1.0% per annum. Initially, from June 29, 2018 until the delivery of the financial statements for the fiscal quarter ending December 31, 2018, LIBOR-based loans will have an applicable margin of 2.00% per annum and base-rate loans will have an applicable margin of 1.00% per annum; thereafter, the applicable margin will range between 1.75% and 2.25% per annum for LIBOR-based loans and 0.75% and 1.25% per annum for base-rate loans, according to average daily excess availability when financial statements are delivered. In addition to paying interest on outstanding principal under the New Credit Agreement, the Borrowers are required to pay a commitment fee in respect of the unutilized commitments thereunder, initially at the rate of 0.375% per annum until the delivery of the financial statements for the fiscal quarter ending September 30, 2018 and thereafter at the applicable rate ranging from 0.250% to 0.375% per annum, paid quarterly in arrears based on utilization of the commitments under the New Credit Agreement. The Borrowers are also required to pay a customary letter of credit fee equal to the applicable margin on revolving credit LIBOR loans and fronting fees. The New Credit Agreement contains certain affirmative and negative covenants, including covenants that restrict the ability of the Borrowers, the New Credit Agreement Guarantors, and certain of their subsidiaries to take certain actions including, among other things and subject to certain significant exceptions, the incurrence of debt, the granting of liens, the making of investments, entering into transactions with affiliates, the payment of dividends, and the sale of assets. The New Credit Agreement also contains a requirement that the Borrowers comply, during certain periods, with a fixed charge coverage ratio of 1.0 to 1.0. All obligations under the New Credit Agreement and the guarantees of those obligations are secured, subject to certain exceptions, by a first priority security interest for the benefit of the Lenders in the Borrowers’ and the New Credit Agreement Guarantors’ present and future accounts receivable, inventory and related assets, and proceeds of the foregoing (the “ABL Collateral”).

Series A Preferred Units Series

Series A Preferred Units Series A Preferred Units	6 Months Ended
Series A Preferred Units Series A Preferred Units	Jun. 30, 2018
Series A Preferred Units [Abstract]
Series A Convertible Preferred Units	SERIES A CONVERTIBLE PREFERRED UNITS During 2016, we entered into Series A Preferred Unit Purchase Agreements (the “Unit Purchase Agreements”) with certain purchasers with regard to our tissuances and sales in two private placements (the "Initial Private Placement" and "Subsequent Private Placement," respectively) of an aggregate of 6,999,126 Preferred Units for a cash purchase price of $11.43 per Preferred Unit (the “Issue Price”), resulting in total net proceeds, after deducting certain offering expenses, of approximately $77.3 million . One of the purchasers in the Initial Private Placement was TETRA, which purchased 874,891 of the Preferred Units at the aggregate Issue Price of $10.0 million . The Preferred Units rank senior to all classes or series of equity securities of the Partnership with respect to distribution rights and rights upon liquidation. The holders of Preferred Units (each, a “Preferred Unitholder”) receive quarterly distributions, which are paid in kind in additional Preferred Units, equal to an annual rate of 11.00% of the Issue Price (or $1.2573 per Preferred Unit annualized) of their outstanding Preferred Units, subject to certain adjustments. The rights of the Preferred Units include certain anti-dilution adjustments, including adjustments for economic dilution resulting from the issuance of common units in the future below a set price. A ratable portion of the Preferred Units has been, and will continue to be, converted into common units on the eighth day of each month over a period of thirty months that began in March 2017 (each, a “Conversion Date”), subject to certain provisions of the Second Amended and Restated Partnership Agreement that may delay or accelerate all or a portion of such monthly conversions. On each Conversion Date, a portion of the Preferred Units convert into common units representing limited partner interests in the Partnership in an amount equal to, with respect to each Preferred Unitholder, the number of Preferred Units held by such Preferred Unitholder divided by the number of Conversion Dates remaining, subject to adjustment described in the Second Amended and Restated Partnership Agreement, with the conversion price (the "Conversion Price") determined by the trading prices of the common units over the prior month, among other factors, and as otherwise impacted by the existence of certain conditions related to the common units. Based on the number of Preferred Units outstanding as of June 30, 2018 , the maximum aggregate number of common units that could be required to be issued pursuant to the conversion provisions of the Preferred Units is approximately 25.5 million common units; however, the Partnership may, at its option, pay cash, or a combination of cash and common units, to the Preferred Unitholders instead of issuing common units on any Conversion Date, subject to certain restrictions as described in the Second Amended and Restated Partnership Agreement. The total number of Preferred Units outstanding as of June 30, 2018 was 4,458,803 . Because the Preferred Units may be settled using a variable number of common units, the fair value of the Preferred Units is classified as a long-term liability on our consolidated balance sheet in accordance with Accounting Standards Codification 480 "Distinguishing Liabilities and Equity." The fair value of the Preferred Units as of June 30, 2018 was $52.2 million . Changes in the fair value during each period, including the $1.0 million net increase and $3.7 million net decrease in fair value during the six month periods ended June 30, 2018 and June 30, 2017 , respectively, are charged and credited to earnings, respectively, in the accompanying consolidated statements of operations. Based on the conversion provisions of the Preferred Units, and using the Conversion Price calculated as of June 30, 2018 , the theoretical number of common units that would be issued if all of the outstanding Preferred Units were converted on June 30, 2018 on the same basis as the monthly conversions would be approximately 9.9 million common units, with an aggregate market value of $55.2 million . A $1 decrease in the Conversion Price would result in the issuance of approximately 2.4 million additional common units pursuant to these conversion provisions.

Market Risks and Derivative Con

Market Risks and Derivative Contracts	6 Months Ended
Market Risks and Derivative Contracts	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Market Risks and Derivative Contracts	MARKET RISKS AND DERIVATIVE CONTRACTS We are exposed to financial and market risks that affect our businesses. We have currency exchange rate risk exposure related to transactions denominated in a foreign currency as well as to investments in certain of our international operations. We have concentrations of credit risk as a result of trade receivables owed to us by companies in the energy industry. Our financial risk management activities may at times involve, among other measures, the use of derivative financial instruments, such as swap and collar agreements, to hedge the impact of market price risk exposures. Foreign Currency Derivative Contracts As of June 30, 2018 , we had the following foreign currency derivative contract outstanding relating to a portion of our foreign operations: Derivative Contracts US Dollar Notional Amount Traded Exchange Rate Settlement Date (In Thousands) Forward sale Mexican peso $ 6,083 20.71 7/19/2018 Under a program designed to mitigate the currency exchange rate risk exposure on selected transactions of certain foreign subsidiaries, we may enter into similar derivative contracts from time to time. Although contracts pursuant to this program will serve as economic hedges of the cash flow of our currency exchange risk exposure, they will not be formally designated as hedge contracts or qualify for hedge accounting treatment. Accordingly, any change in the fair value of these derivative instruments during a period will be included in the determination of earnings for that period. The fair values of our foreign currency derivative instruments are based on quoted market values as reported to us by our counterparty (a Level 2 fair value measurement). The fair values of our foreign currency derivative instruments as of June 30, 2018 and December 31, 2017 , are as follows: Foreign currency derivative instruments Balance Sheet Fair Value at Location June 30, 2018 December 31, 2017 (In Thousands) Forward sale contracts Current assets $ — $ 130 Forward sale contracts Current liabilities (241 ) (10 ) Net asset $ (241 ) $ 120 None of the foreign currency derivative contracts contains credit risk related contingent features that would require us to post assets or collateral for contracts that are classified as liabilities. During the three and six month periods ended June 30, 2018 , we recognized $0.7 million and $0.2 million , respectively, of net gains (losses) associated with our foreign currency derivative program, and such amounts are included in other (income) expense, net, in the accompanying consolidated statement of operations. During the three and six month periods ended June 30, 2017 , we recognized $(0.1) million and $(0.4) million , respectively, of net gains (losses) associated with our foreign currency derivative program, and such amounts are included in other (income) expense, net, in the accompanying consolidated statement of operations.

Related Party Transactions

Related Party Transactions	6 Months Ended
Related Party Transactions	Jun. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS Omnibus Agreement Under the terms of the Omnibus Agreement entered into on June 20, 2011 and later amended June 20, 2014 (the "Omnibus Agreement"), our General Partner provides all personnel and services reasonably necessary to manage our operations and conduct our business (other than in Mexico, Canada, and Argentina), and certain of TETRA’s Latin American-based subsidiaries provide personnel and services necessary for the conduct of certain of our Latin American-based businesses. In addition, under the Omnibus Agreement, TETRA provides certain corporate and general and administrative services as requested by our General Partner, including, without limitation, legal, accounting and financial reporting, treasury, insurance administration, claims processing and risk management, health, safety and environmental, information technology, human resources, credit, payroll, internal audit, and tax services. Pursuant to the Omnibus Agreement, we reimburse our General Partner and TETRA for services they provide to us. The Omnibus Agreement will terminate on the earlier of (i) a change of control of the General Partner or TETRA, or (ii) upon any party providing at least 180 days prior written notice of termination. Under the terms of the Omnibus Agreement, we or TETRA may, but neither of us is under any obligation to, perform for the other such production enhancement or other oilfield services on a subcontract basis as are needed or desired by the other, for such periods of time and in such amounts as may be mutually agreed upon by TETRA and our General Partner. Any such services are required to be performed on terms that are (i) approved by the conflicts committee of our General Partner’s board of directors, (ii) no less favorable to us than those generally being provided to or available from non-affiliated third parties, as determined by our General Partner, or (iii) fair and reasonable to us, taking into account the totality of the relationships between TETRA and us (including other transactions that may be particularly favorable or advantageous to us), as determined by our General Partner. Under the terms of the Omnibus Agreement, we or TETRA may, but neither of us is under any obligation to, sell, lease or exchange on a like-kind basis to the other such production enhancement or other oilfield services equipment as is needed or desired to meet either of our production enhancement or other oilfield services obligations, in such amounts, upon such conditions and for such periods of time, if applicable, as may be mutually agreed upon by TETRA and our General Partner. Any such sales, leases, or like-kind exchanges are required to be on terms that are (i) approved by the conflicts committee of our General Partner’s board of directors, (ii) no less favorable to us than those generally being provided to or available from non-affiliated third parties, as determined by our General Partner, or (iii) fair and reasonable to us, taking into account the totality of the relationships between TETRA and us (including other transactions that may be particularly favorable or advantageous to us), as determined by our General Partner. In addition, unless otherwise approved by the conflicts committee of our General Partner’s board of directors, TETRA may purchase newly fabricated equipment from us at a negotiated price, provided that such price may not be less than the sum of the total costs (other than any allocations of general and administrative expenses) incurred by us in fabricating such equipment plus a fixed margin percentage thereof, and TETRA may purchase from us previously fabricated equipment for a price that is not less than the sum of the net book value of such equipment plus a fixed margin percentage thereof. TETRA and General Partner Ownership As of June 30, 2018 , TETRA's ownership interest in us was approximately 37% of the outstanding common units, 12.6% of the outstanding Preferred Units, and an approximately 1.6% general partner interest, through which it holds incentive distribution rights. For discussion of the purchase by TETRA of a portion of the Preferred Units, see Note C - Series A Convertible Preferred Units. As Preferred Units are converted to common units, TETRA's percentage ownership of the common units will decrease.

Income Taxes

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES As a partnership, we are generally not subject to income taxes at the entity level because our income is included in the tax returns of our partners. Our operations are treated as a partnership for federal tax purposes with each partner being separately taxed on its share of taxable income. However, a portion of our business is conducted through taxable U.S. corporate subsidiaries. Accordingly, a U.S. federal and state income tax provision has been reflected in the accompanying statements of operations. Certain of our operations are located outside of the U.S., and the Partnership, through its foreign subsidiaries, is responsible for income taxes in these countries. The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. At June 30, 2018 and December 31, 2017, we had not completed our accounting for the tax effects of enactment of the Act; however, in certain cases, we made reasonable estimates of the effects and recorded provisional amounts. We will continue to make and refine our calculations as additional analysis is completed. The accounting for the tax effects of the Act will be completed in 2018 as provided by the U.S. Securities and Exchange Commission’s SAB No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. We recognized an income tax expense of $21.9 million in the fourth quarter of 2017 associated with the impact of the Act, which was fully offset by a decrease in the valuation allowance previously recorded on our net deferred tax assets. As such, the Act resulted in no net tax expense in the fourth quarter of 2017. We have considered in our estimated annual effective tax rate for 2018, the impact of the statutory changes enacted by the Act, including reasonable estimates of those provisions effective for the 2018 tax year. Our estimate on Global Intangible Low Taxed Income (“GILTI”), Foreign Derived Intangible Income (“FDII”), Base Erosion and Anti-Abuse Tax (“BEAT”), and IRC Section 163(j) interest limitation do not impact our effective tax rate for the three and six month periods ended June 30, 2018 . Despite the pre-tax loss for the three and six month periods ended June 30, 2018 , we recorded a provision for income tax, primarily attributable to taxes in certain foreign jurisdictions and Texas gross margin taxes. Our effective tax rates for the three and six month periods ended June 30, 2018 were negative 9.7% and negative 9.3% , respectively, primarily due to losses generated in entities for which no related tax benefit has been recorded. The losses generated by these entities do not result in tax benefits due to offsetting valuation allowances being recorded against their net deferred tax assets. We establish a valuation allowance to reduce the deferred tax assets when it is more likely than not that some portion or all of the deferred tax assets will not be realized. Included in our deferred tax assets are net operating loss carryforwards and tax credits that are available to offset future income tax liabilities in the U.S. as well as in certain foreign jurisdictions.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES From time to time, we are involved in litigation relating to claims arising out of our operations in the normal course of business. While the outcome of any lawsuits or other proceedings against us cannot be predicted with certainty, management does not consider it reasonably possible that a loss resulting from such lawsuits or proceedings in excess of any amounts accrued has been incurred that is expected to have a material adverse effect on our financial condition, results of operations, or cash flows.

Segments (Notes)

Segments (Notes)	6 Months Ended
Segments (Notes)	Jun. 30, 2018
Segment Reporting [Abstract]
Segments	SEGMENTS ASC 280-10-50, “Operating Segments”, defines the characteristics of an operating segment as (i) being engaged in business activity from which it may earn revenues and incur expenses, (ii) being reviewed by the company's chief operating decision maker ("CODM") to make decisions about resources to be allocated and to assess its performance, and (iii) having discrete financial information. Although management of our General Partner reviews our products and services to analyze the nature of our revenue, other financial information, such as certain costs and expenses, and net income are not captured or analyzed by these items. Therefore, discrete financial information is not available by product line and our CODM does not make resource allocation decisions or assess the performance of the business based on these items, but rather in the aggregate. Based on this, our General Partner believes that we operate in one business segment.

Supplemental Guarantor Financia

Supplemental Guarantor Financial Information Supplemental Guarantor Financial Information	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Guarantor Financial Information	SUPPLEMENTAL GUARANTOR FINANCIAL INFORMATION The $295.9 million and $350.0 million in aggregate principal amounts outstanding of the 7.25% Senior Notes and 7.50% Senior Secured Notes, respectively, as of June 30, 2018 are fully and unconditionally guaranteed, subject to certain customary release provisions, on a joint and several senior unsecured basis, by the following domestic restricted subsidiaries (each a "Guarantor Subsidiary" and collectively the "Guarantor Subsidiaries"): CSI Compressco Field Services International LLC CSI Compressco Holdings LLC CSI Compressco International LLC CSI Compressco Leasing LLC CSI Compressco Operating LLC CSI Compressco Sub, Inc. CSI Compression Holdings, LLC Rotary Compressor Systems, Inc. As a result of these guarantees, we are presenting the following condensed consolidating financial information pursuant to Rule 3-10 of Regulation S-X. These schedules are presented using the equity method of accounting for all periods presented. Under this method, investments in subsidiaries are recorded at cost and adjusted for our share in the subsidiaries’ cumulative results of operations, capital contributions and distributions and other changes in equity. Elimination entries relate primarily to the elimination of investments in subsidiaries and associated intercompany balances and transactions. The Other Subsidiaries column includes financial information for those subsidiaries that do not guarantee the 7.25% Senior Notes or the 7.50% Senior Secured Notes. In addition to the financial information of the Partnership, financial information of the Issuers includes CSI Compressco Finance Inc., which had no assets or operations for any of the periods presented. Condensed Consolidating Balance Sheet June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated ASSETS Current assets $ — $ 162,535 $ 22,932 $ — $ 185,467 Property, plant, and equipment, net — 594,784 24,877 — 619,661 Investments in subsidiaries 148,632 18,556 — (167,188 ) — Intangible and other assets, net — 34,058 327 — 34,385 Intercompany receivables 625,289 — — (625,289 ) — Total non-current assets 773,921 647,398 25,204 (792,477 ) 654,046 Total assets $ 773,921 $ 809,933 $ 48,136 $ (792,477 ) $ 839,513 LIABILITIES AND PARTNERS' CAPITAL Current liabilities $ 16,123 $ 59,133 $ 2,313 $ — $ 77,569 Amounts payable to affiliates — 1,372 1,298 — 2,670 Long-term debt, net 632,492 — — — 632,492 Series A Preferred Units 52,200 — — — 52,200 Intercompany payables — 600,111 25,178 (625,289 ) — Other long-term liabilities — 685 791 — 1,476 Total liabilities 700,815 661,301 29,580 (625,289 ) 766,407 Total partners' capital 73,106 148,632 18,556 (167,188 ) 73,106 Total liabilities and partners' capital $ 773,921 $ 809,933 $ 48,136 $ (792,477 ) $ 839,513 Condensed Consolidating Balance Sheet December 31, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated ASSETS Current assets $ — $ 78,942 $ 23,205 $ — $ 102,147 Property, plant, and equipment, net — 581,092 25,387 — 606,479 Investments in subsidiaries 169,411 19,146 — (188,557 ) — Intangible and other assets, net — 33,688 618 — 34,306 Intercompany receivables 292,373 — — (292,373 ) — Total non-current assets 461,784 633,926 26,005 (480,930 ) 640,785 Total assets $ 461,784 $ 712,868 $ 49,210 $ (480,930 ) $ 742,932 LIABILITIES AND PARTNERS' CAPITAL Current liabilities $ 8,306 $ 49,639 $ 3,027 $ — $ 60,972 Amounts payable to affiliates — 1,475 1,559 — 3,034 Long-term debt, net 288,191 223,985 — — 512,176 Series A Preferred Units 70,260 — — — 70,260 Intercompany payables — 268,216 24,157 (292,373 ) — Other long-term liabilities — 142 1,321 — 1,463 Total liabilities 366,757 543,457 30,064 (292,373 ) 647,905 Total partners' capital 95,027 169,411 19,146 (188,557 ) 95,027 Total liabilities and partners' capital $ 461,784 $ 712,868 $ 49,210 $ (480,930 ) $ 742,932 Condensed Consolidating Statement of Operations and Comprehensive Income Three Months Ended June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 94,145 $ 8,080 $ (2,303 ) $ 99,922 Cost of revenues (excluding depreciation and amortization expense) — 64,531 5,280 (2,303 ) 67,508 Selling, general and administrative expense 496 9,723 630 — 10,849 Depreciation and amortization — 16,674 774 — 17,448 Insurance recoveries — — — — — Interest expense, net 14,042 (219 ) — — 13,823 Series A Preferred FV Adjustment (586 ) — — — (586 ) Other expense, net — (625 ) 247 — (378 ) Equity in net (income) loss of subsidiaries (4,360 ) (1,433 ) — 5,793 — Income before income tax provision (9,592 ) 5,494 1,149 (5,793 ) (8,742 ) Provision (benefit) for income taxes — 1,134 (284 ) — 850 Net income (loss) (9,592 ) 4,360 1,433 (5,793 ) (9,592 ) Other comprehensive income (loss) (2,873 ) (2,873 ) (2,873 ) 5,746 (2,873 ) Comprehensive income (loss) $ (12,465 ) $ 1,487 $ (1,440 ) $ (47 ) $ (12,465 ) Condensed Consolidating Statement of Operations and Comprehensive Income Three Months Ended June 30, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 70,515 $ 6,321 $ (1,521 ) $ 75,315 Cost of revenues (excluding depreciation and amortization expense) — 47,668 4,438 (1,521 ) 50,585 Selling, general and administrative expense 941 6,902 387 — 8,230 Depreciation and amortization — 16,393 811 — 17,204 Interest expense, net 7,862 2,587 — — 10,449 Series A Preferred FV Adjustment (5,528 ) — — — (5,528 ) Other expense, net — 239 (98 ) — 141 Equity in net income of subsidiaries 3,097 (391 ) — (2,706 ) — Income (loss) before income tax provision (6,372 ) (2,883 ) 783 2,706 (5,766 ) Provision (benefit) for income taxes — 214 392 — 606 Net income (loss) (6,372 ) (3,097 ) 391 2,706 (6,372 ) Other comprehensive income (loss) (568 ) (568 ) (568 ) 1,136 (568 ) Comprehensive income (loss) $ (6,940 ) $ (3,665 ) $ (177 ) $ 3,842 $ (6,940 ) Condensed Consolidating Statement of Operations and Comprehensive Income Six Months Ended June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 173,535 $ 15,466 $ (3,662 ) $ 185,339 Cost of revenues (excluding depreciation and amortization expense) — 118,820 10,336 (3,662 ) 125,494 Selling, general and administrative expense (108 ) 18,161 1,093 — 19,146 Depreciation and amortization — 33,318 1,497 — 34,815 Insurance recoveries — — — — — Interest expense, net 22,141 3,115 — — 25,256 Series A Preferred FV Adjustment 967 — — — 967 Other expense, net — 3,710 (884 ) — 2,826 Equity in net income of subsidiaries 2,329 (2,931 ) — 602 — Income before income tax provision (25,329 ) (658 ) 3,424 (602 ) (23,165 ) Provision for income taxes — 1,671 493 — 2,164 Net income (25,329 ) (2,329 ) 2,931 (602 ) (25,329 ) Other comprehensive income (loss) (3,522 ) (3,522 ) (3,522 ) 7,044 (3,522 ) Comprehensive income (loss) $ (28,851 ) $ (5,851 ) $ (591 ) $ 6,442 $ (28,851 ) Condensed Consolidating Statement of Operations and Comprehensive Income Six Months Ended June 30, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 131,098 $ 12,702 $ (2,933 ) $ 140,867 Cost of revenues (excluding depreciation and amortization expense) — 86,905 8,674 (2,933 ) 92,646 Selling, general and administrative expense 1,984 14,303 709 — 16,996 Depreciation and amortization — 32,917 1,582 — 34,499 Interest expense, net 15,849 4,983 — — 20,832 Series A Preferred FV Adjustment (3,663 ) — — — (3,663 ) Other expense, net — 602 (499 ) — 103 Equity in net income of subsidiaries 7,795 (1,028 ) — (6,767 ) — Income before income tax provision (21,965 ) (7,584 ) 2,236 6,767 (20,546 ) Provision (benefit) for income taxes — 211 1,208 — 1,419 Net income (21,965 ) (7,795 ) 1,028 6,767 (21,965 ) Other comprehensive income (loss) (318 ) (318 ) (318 ) 636 (318 ) Comprehensive income (loss) $ (22,283 ) $ (8,113 ) $ 710 $ 7,403 $ (22,283 ) Condensed Consolidating Statement of Cash Flows Six Months Ended June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Net cash provided by (used in) operating activities $ — $ (10,424 ) $ 6,151 $ — $ (4,273 ) Investing activities: Purchases of property, plant, and equipment, net — (43,482 ) (3,780 ) — (47,262 ) Advances and other investing activities — 34 — — 34 Net cash provided by (used in) investing activities — (43,448 ) (3,780 ) — (47,228 ) Financing activities: Proceeds from long-term debt 343,800 36,200 — — 380,000 Payments of long-term debt — (258,000 ) — — (258,000 ) Distributions (14,928 ) — — — (14,928 ) Other Financing Activities (7,662 ) — — — (7,662 ) Intercompany contribution (distribution) (321,210 ) 321,210 — — Net cash provided by (used in) financing activities — 99,410 — — 99,410 Effect of exchange rate changes on cash — — 65 — 65 Increase (decrease) in cash and cash equivalents — 45,538 2,436 — 47,974 Cash and cash equivalents at beginning of period — 4,197 3,404 — 7,601 Cash and cash equivalents at end of period $ — $ 49,735 $ 5,840 $ — $ 55,575 Condensed Consolidating Statement of Cash Flows Six Months Ended June 30, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Net cash provided by (used in) operating activities $ — $ 15,735 $ (4,381 ) $ — $ 11,354 Investing activities: Purchases of property, plant, and equipment, net — (11,850 ) 373 — (11,477 ) Advances and other investing activities — 32 — 32 Net cash provided by (used in) investing activities — (11,818 ) 373 — (11,445 ) Financing activities: Proceeds from long-term debt — 42,500 — — 42,500 Payments of long-term debt — (37,300 ) — — (37,300 ) Distributions (19,391 ) — — — (19,391 ) Other financing activities (82 ) (1,266 ) — — (1,348 ) Intercompany contribution (distribution) 19,510 (19,510 ) — — — Net cash provided by (used in) financing activities — (15,576 ) — — (15,576 ) Effect of exchange rate changes on cash — — (110 ) — (110 ) Increase (decrease) in cash and cash equivalents — (11,659 ) (4,118 ) — (15,777 ) Cash and cash equivalents at beginning of period — 12,201 8,596 — 20,797 Cash and cash equivalents at end of period $ — $ 542 $ 4,478 $ — $ 5,020

Subsequent Events

Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2018
Subsequent Events [Abstract]
Schedule of Subsequent Events [Table Text Block]	SUBSEQUENT EVENTS On July 20, 2018 , the board of directors of our General Partner declared a cash distribution attributable to the quarter ended June 30, 2018 of $0.1875 per common unit. This distribution equates to a distribution of $0.75 per outstanding common unit, on an annualized basis. Also on July 20, 2018 , the board of directors of our General Partner approved the paid-in-kind distribution of 131,569 Preferred Units attributable to the quarter ended June 30, 2018 , in accordance with the provisions of our partnership agreement, as amended. These distributions will be paid on August 14, 2018 to each of the holders of common units, and to the holders of the Preferred Units in the aggregate, respectively, of record as of the close of business on August 1, 2018 . On July 9, 2018, 318,485 Preferred Units were converted into 623,340 common units. On August 8, 2018, 318,485 Preferred Units were converted into 685,556 common units.

Revenue from Contract with Cust

Revenue from Contract with Customers Revenue from Contract with Customers (Notes)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	REVENUE RECOGNITION Performance Obligations. Revenue is recognized when performance obligations under the terms of a contract with our customer are satisfied. Generally this occurs with the transfer of control of our products or services to our customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products or providing services to our customers. Equipment Sales & Aftermarket Services. Equipment sales and most aftermarket service revenues are recognized at a point in time when we transfer control of our products and complete the delivery of services to our customers. Compression and related services. For compression services revenues recognized over time, our customer contracts typically provide agreed upon monthly service rates and we recognize service revenue based upon the number of days that services have been performed. We receive cash equal to the invoice price for most product sales and services and payment terms typically range from 30 to 60 days from the date we invoice our customer. With the exception of the initial terms of our compression services contracts of our medium- and high-horsepower compressor packages, our customer contracts are generally for terms of one year or less. Since the period between when we deliver products or services and when the customer pays for products or services are not expected to exceed one year, we have elected not to calculate or disclose a financing component for our customer contracts. Depending on the terms of the arrangement, we may also defer the recognition of revenue for a portion of the consideration received because we have to satisfy a future performance obligation. For example, consideration received from customers during the fabrication of new compressor packages is typically deferred until control of the compressor package is transferred to our customer. For any arrangements with multiple performance obligations, we use management's estimated selling price to determine the stand-alone selling price for separate performance obligations . For revenue associated with mobilization of service equipment as part of a service contract arrangement, such revenue, if significant, is deferred and amortized over the estimated service period. As of June 30, 2018 , we had $6.4 million of remaining performance obligations related to our compression service contracts. As a practical expedient, thi s amount does not reflect revenue for compression service contracts whose original expected duration is less than 12 months an d does not consider the effects of the time value of money . The remaining performance obligations, and associated revenues, will be recognized through 2022 as follows: 2018 2019 2020 2021 2022 Total (In Thousands) Compression service contracts remaining performance obligations $ 1,791 $ 3,209 $ 1,027 $ 253 $ 77 $ 6,357 Sales taxes, value added taxes, and other taxes we collect concurrent with revenue-producing activities are excluded from revenue. We recognize the cost for freight and shipping costs when control over our products (i.e. delivery) has transferred to the customer as part of cost of product sales. Use of Estimates. Our revenues do not include material amounts of variable consideration, as our revenues typically do not require significant estimates or judgments. The transaction price on a majority of our arrangements are fixed and product returns are immaterial. Additionally, our arrangements typically do not include multiple performance obligations that require estimates of the stand-alone purchase price for each performance obligation. Revenue on certain aftermarket service arrangements that include time as a component of the transaction price is not recognized until the performance obligation is complete. Contract Assets and Liabilities. Contract assets arise when we transfer products or perform services in fulfillment of a contract obligation but must perform other performance obligations before being entitled to payment. Generally, once we have transferred products or performed services for the customer pursuant to a contract, we recognize revenue and trade accounts receivable, as we are entitled to payment that is unconditional. Any contract assets, along with billed and unbilled accounts receivable, are included in Trade Accounts Receivable in our consolidated balance sheets. Contract liabilities arise when we receive consideration, or consideration is unconditionally due, from a customer prior to transferring products or services to the customer under the terms of a sales contract. We classify contract liabilities as Unearned Income in our consolidated balance sheets. Such unearned income typically results from advance payments received on sales of compressor equipment prior to when it is completed and transferred to the customer in accordance with the customer contract. There were no contract assets as of December 31, 2017 and June 30, 2018 . The following table reflects the changes in our contract liabilities during the six month period ended June 30, 2018 : June 30, 2018 (In Thousands) Unearned income, beginning of period $ 15,526 Additional unearned income 57,509 Revenue recognized (44,594 ) Unearned income, end of period $ 28,441 Bad debt expense on accounts receivables was $0.3 million and $0.6 million during the six month periods ended June 30, 2018 and 2017 , respectively. During the six months ended June 30, 2018 , contract liabilities increased due to unearned income for consideration received on new compressor equipment being fabricated. During the six months ended June 30, 2018 , $44.6 million of unearned income was recognized as product sales revenue, primarily associated with deliveries of compression equipment. Contract Costs. When costs are incurred to obtain contracts, such as professional fees and sales bonuses, such costs are deferred and amortized over the contract term. Costs of mobilizing service equipment necessary to perform under service contracts, if significant, are deferred and amortized over the estimated service period. As of June 30, 2018 , we had no deferred contract costs. Where applicable, we establish provisions for estimated obligations pursuant to compressor equipment warranties by accruing for estimated future product warranty cost in the period of the compressor equipment sale. Such estimates are based on historical warranty loss experience. Major components of fabricated compressor packages have manufacturer warranties that we pass through to the customer. Disaggregation of Revenue. We disaggregate revenue from contracts with customers by geography based on the following table below. Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 Compression and related services U.S. $ 48,720 $ 43,999 $ 95,124 $ 88,501 International 7,989 6,257 15,320 12,252 56,709 50,256 110,444 100,753 Aftermarket services U.S. 14,385 10,218 27,738 18,968 International 709 311 1,372 948 15,094 10,529 29,110 19,916 Equipment sales U.S. 28,119 14,434 45,341 19,150 International — 96 444 1,048 28,119 14,530 45,785 20,198 Total Revenue U.S. 91,224 68,651 168,203 126,619 International 8,698 6,664 17,136 14,248 $ 99,922 $ 75,315 $ 185,339 $ 140,867

Basis of Presentation and Sig20

Basis of Presentation and Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Consolidation policy	Presentation Our unaudited consolidated financial statements include the accounts of our wholly owned subsidiaries. All intercompany balances and transactions have been eliminated. In the opinion of our management, our unaudited consolidated financial statements as of June 30, 2018 , and for the three and six month periods ended June 30, 2018 and 2017 , include all normal recurring adjustments that are necessary to provide a fair statement of our results for these interim periods. Operating results for the three and six month periods ended June 30, 2018 are not necessarily indicative of results that may be expected for the twelve months ended December 31, 2018 . The accompanying unaudited consolidated financial statements have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the U.S. Securities and Exchange Commission ("SEC") and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. These financial statements should be read in connection with the financial statements for the year ended December 31, 2017 and notes thereto included in our Annual Report on Form 10-K, which we filed with the SEC on March 2, 2018 .
Use of estimates policy	Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclose contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues, expenses, and impairments during the reporting period. Actual results could differ from those estimates, and such differences could be material.
Reclassifications policy	Reclassifications Certain previously reported financial information has been reclassified to conform to the current year period’s presentation. The impact of such reclassifications was not significant to the prior year period’s overall presentation.
Cash equivalents policy	Cash Equivalents We consider all highly liquid cash investments with maturities of three months or less when purchased to be cash equivalents.
Foreign currencies policy	Foreign Currencies We have designated the Canadian dollar and Argentine peso as the functional currencies for our operations in Canada and Argentina, respectively. We are exposed to fluctuations between the U.S. dollar and certain foreign currencies, including the Canadian dollar, the Mexican peso, and the Argentine peso, as a result of our international operations. Foreign currency exchange gains and losses are included in other (income) expense, net and totaled $0.5 million and $(0.6) million during the three and six month periods ended June 30, 2018 , respectively, and $(0.2) million and $(0.4) million during the three and six month periods ended June 30, 2017 , respectively. On June 30, 2018, we determined the economy in Argentina to be highly inflationary. As a result of this determination, beginning July 1, 2018, our reporting of our operations in Argentina will reflect the remeasurement of the functional currency from the Argentine peso to the U.S. dollar.
Inventories policy	Inventories Inventories consist primarily of compressor package parts and supplies and work in progress and are stated at the lower of cost or net realizable value. For parts and supplies, cost is determined using the weighted average cost method. The cost of work in progress is determined using the specific identification method. Work in progress inventories consist primarily of new compressor packages located at our fabrication facility in Midland, Texas. Components of inventories as of June 30, 2018 and December 31, 2017 , are as follows: June 30, 2018 December 31, 2017 (In Thousands) Parts and supplies $ 42,100 $ 31,703 Work in progress 23,356 10,580 Total inventories $ 65,456 $ 42,283
Earnings per common unit policy	Earnings Per Common Unit Our computations of earnings per common unit are based on the weighted average number of common units outstanding during the applicable period. Basic earnings per common unit are determined by dividing net income (loss) allocated to the common units after deducting the amount allocated to our General Partner (including any distributions to our General Partner on its incentive distribution rights) by the weighted average number of outstanding common units during the period. When computing earnings per common unit when distributions are greater than earnings, the amount of the distribution is deducted from net income (loss) and the excess of distributions over earnings is allocated between the General Partner and common units based on how our Partnership Agreement allocates net losses. When earnings are greater than distributions, we determine cash distributions based on available cash and determine the actual incentive distributions allocable to our General Partner based on actual distributions. When computing earnings per common unit, the amount of the assumed incentive distribution rights, if any, is deducted from net income and allocated to our General Partner for the period to which the calculation relates. The remaining amount of net income, after deducting the assumed incentive distribution rights, is allocated between the General Partner and common units based on how our Partnership Agreement allocates net earnings. Diluted earnings per common unit are computed using the treasury stock method, which considers the potential future issuance of limited partner common units. Unvested phantom units are not included in basic earnings per common unit, as they are not considered to be participating securities, but are included in the calculation of diluted earnings per common unit. For the three and six month periods ended June 30, 2018 and June 30, 2017 , all unvested phantom units were excluded from the calculation of diluted common units because the impact was anti-dilutive.
Accumulated other comprehensive income policy	Accumulated Other Comprehensive Income (Loss) Certain of our international operations maintain their accounting records in the local currencies that are their functional currencies. For these operations, the functional currency financial statements are converted to United States dollar equivalents, with the effect of the foreign currency translation adjustment reflected as a component of accumulated other comprehensive income (loss). Accumulated other comprehensive income (loss) is included in partners’ capital in the accompanying consolidated balance sheets and consists of the cumulative currency translation adjustments associated with such international operations. Activity within accumulated other comprehensive income (loss) during the three and six month periods ended June 30, 2018 and 2017 , is as follows: Three Months Ended Six Months Ended 2018 2017 2018 2017 (In Thousands) Balance, beginning of period $ (12,138 ) $ (10,161 ) $ (11,489 ) $ (10,411 ) Foreign currency translation adjustment (2,873 ) (568 ) (3,522 ) (318 ) Balance, end of period $ (15,011 ) $ (10,729 ) $ (15,011 ) $ (10,729 ) Activity within accumulated other comprehensive income includes no reclassifications to net income (loss).
Allocation of net income policy	Allocation of Net Income (Loss) Our net income (loss) is allocated to partners’ capital accounts in accordance with the provisions of our partnership agreement.
Distributions policy	Distributions On January 22, 2018 , our General Partner declared a cash distribution attributable to the quarter ended December 31, 2017 of $0.1875 per common unit. This distribution equates to a distribution of $0.75 per outstanding common unit on an annualized basis. Also on January 22, 2018 , our General Partner approved the paid in kind distribution of 172,210 Preferred Units attributable to the quarter ended December 31, 2017 in accordance with the provisions of our partnership agreement, as amended. These distributions were paid on February 14, 2018 , to each of the holders of common units and the holders of the Preferred Units in the aggregate, respectively, of record as of the close of business on February 1, 2018 . On April 20, 2018 , our General Partner declared a cash distribution attributable to the quarter ended March 31, 2018 of $0.1875 per common unit. This distribution equates to a distribution of $0.75 per outstanding common unit on an annualized basis. Also on April 20, 2018 , our General Partner approved the paid in kind distribution of 152,381 Preferred Units attributable to the quarter ended March 31, 2018 in accordance with the provisions of our partnership agreement, as amended. These distributions were paid on May 15, 2018 to each of the holders of common units and to the holders of the Preferred Units in the aggregate, respectively, of record as of the close of business on May 1, 2018 .
Fair value measurements policy	Fair Value Measurements Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date” within an entity’s principal market, if any. The principal market is the market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity, regardless of whether it is the market in which the entity will ultimately transact for a particular asset or liability or if a different market is potentially more advantageous. Accordingly, this exit price concept may result in a fair value that may differ from the transaction price or market price of the asset or liability. Under U.S. generally accepted accounting principles ("GAAP"), the fair value hierarchy prioritizes inputs to valuation techniques used to measure fair value. Fair value measurements should maximize the use of observable inputs and minimize the use of unobservable inputs, where possible. Observable inputs are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs may be needed to measure fair value in situations where there is little or no market activity for the asset or liability at the measurement date and are developed based on the best information available in the circumstances, which could include the reporting entity’s own judgments about the assumptions market participants would utilize in pricing the asset or liability. We utilize fair value measurements to account for certain items and account balances within our consolidated financial statements. Fair value measurements are utilized in the determination of the carrying value of our Preferred Units (a Level 3 fair value measurement), which were issued in August and September of 2016. We also utilize fair value measurements on a recurring basis in the accounting for our foreign currency forward purchase and sale derivative contracts. For these fair value measurements, we utilize the quoted value as determined by our counterparty financial institution (a level 2 fair value measurement). Fair value measurements are also utilized on a nonrecurring basis, such as in the allocation of purchase consideration for acquisition transactions to the assets and liabilities acquired, including intangible assets (a Level 3 fair value measurement) and for the impairment of long-lived assets (a level 3 fair value measurement). The fair value of certain of our financial instruments, which may include cash, accounts receivable, short-term borrowings, and variable-rate long-term debt pursuant to our bank credit agreement, approximate their carrying amounts. The fair values of our publicly traded long-term 7.25% Senior Notes at June 30, 2018 and December 31, 2017 were approximately $271.5 million and $279.7 million , respectively. Those fair values compare to aggregate principal amounts of such notes at June 30, 2018 and December 31, 2017 of $295.9 million . The fair value of our publicly traded long-term 7.50% Senior Secured Notes at June 30, 2018 was approximately $351.8 million . This fair value compares to an aggregate principal amount of such notes at June 30, 2018 of $350.0 million . We based the fair values of our 7.25% Senior Notes and our 7.50% Senior Secured Notes as of June 30, 2018 on recent trades for these notes (a level 1 fair value measurement). The Preferred Units are valued using a lattice modeling technique that, among a number of lattice structures, includes significant unobservable items. These unobservable items include (i) the volatility of the trading price of our common units compared to a volatility analysis of equity prices of comparable peer companies, (ii) a yield analysis that utilizes market information related to the debt yields of comparable peer companies, and (iii) a future conversion price analysis. The fair value of our Preferred Units liability is increased by, among other factors, projected increases in our common unit price, and by increases in the volatility and decreases in the debt yields of comparable peer companies. Increases (or decreases) in the fair value of our Preferred Units will increase (decrease) the associated liability and result in future adjustments to earnings for the associated valuation losses (gains). A summary of these recurring fair value measurements as of June 30, 2018 and December 31, 2017 is as follows: Fair Value Measurements Using Description Total as of Quoted Prices Significant Significant (In Thousands) Series A Preferred Units $ (52,200 ) $ — $ — $ (52,200 ) Liability for foreign currency derivative contracts (241 ) — (241 ) — $ (52,441 ) Fair Value Measurements Using Quoted Prices Significant Significant Description Total as of (In Thousands) Series A Preferred Units $ (70,260 ) $ — $ — $ (70,260 ) Asset for foreign currency derivative contracts 130 — 130 — Liability for foreign currency derivative contracts (10 ) — (10 ) — $ (70,140 )
New accounting pronouncements policy	New Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, "Revenue from Contracts with Customers." This ASU supersedes the revenue recognition requirements in ASC 605, "Revenue Recognition", and most industry-specific guidance. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those years, under either full or modified retrospective adoption. On January 1, 2018, we adopted ASU 2014-09 and all related amendments ("ASU 2014-09"). We utilized the modified retrospective method of adoption. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The core principle of ASU 2014-09 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. ASU 2014-09 also provides a five-step model for determining revenue recognition for arrangements that are within the scope of the standard: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. We only apply the five-step model to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services we transfer to the customer. At contract inception, once the contract is determined to be within the scope of ASU 2014-09, we assess the goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. For a complete discussion of accounting for revenues, see Note I - Revenue Recognition. The impact from the adoption of ASU 2014-09 to our January 1, 2018 consolidated balance sheet, our June 30, 2018 consolidated balance sheet, and our consolidated results of operations for the three and six month periods ended June 30, 2018 was immaterial. The adoption of ASU 2014-09 had no impact to cash provided by operating, financing, or investing activities in our consolidated statement of cash flows. We do not expect the adoption of the new revenue standard to have a material impact to our net income on an ongoing basis. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)" to increase comparability and transparency among different organizations. Organizations are required to recognize right-of-use lease assets and lease liabilities in the balance sheet related to the right to use the underlying asset for the lease term. In addition, through improved disclosure requirements, the ASU will enable users of financial statements to further understand the amount, timing, and uncertainty of cash flows arising from leases. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods, with early adoption permitted, under a modified retrospective adoption. We are currently assessing the potential effects of these changes to our consolidated financial statements. Our current operating lease portfolio consists primarily of real estate, vehicles, and equipment leases. Based on our preliminary assessment, upon adoption of the ASU we will record significant right-to-use assets and lease obligations pursuant to the new requirements. We are evaluating our portfolio of existing leases for consideration of the accounting impact of each lease. We are also evaluating and are developing internal policies to address the requirements under this ASU. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." ASU 2016-13 amends the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, which will result in the more timely recognition of losses. ASU 2016-13, which has an effective date of the first quarter of fiscal 2022, also applies to employee benefit plan accounting. We are currently assessing the potential effects of these changes to our consolidated financial statements and employee benefit plan accounting. In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" to reduce diversity in practice in classification of certain transactions in the statement of cash flows. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements. In November 2016, the FASB issued ASU 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory" which requires companies to account for the income tax effects of intercompany transfers of assets other than inventory when the transfer occurs. We adopted this ASU during the three month period ended March 31, 2018. The adoption of this standard did not have a material impact to our consolidated financial statements due to a previously recorded valuation allowance on our net deferred tax assets. Additionally, in November 2016, the FASB issued ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" to reduce diversity in the presentation of restricted cash and restricted cash equivalents in the statement of cash flows. We adopted this ASU during the three month period ended March 31, 2018, resulting in restricted cash being classified with cash and cash equivalents in our consolidated statement of cash flows for all periods presented. In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting" to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification. We adopted this ASU during the three month period ended March 31, 2018, with no material impact to our consolidated financial statements. In July 2017, the FASB issued ASU 2017-11, "Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815): (Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception" to consider “down round” features when determining whether certain equity-linked financial instruments or embedded features are indexed to an entity’s own stock. Entities that present earnings per share ("EPS") under ASC 260 will recognize the effect of a down round feature in a freestanding equity-classified financial instrument only when it is triggered. The effect of triggering such a feature will be recognized as a dividend and a reduction to income available to common shareholders in basic EPS. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities" to change how companies account for and disclose hedges. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods. We are currently assessing the potential effects of these changes to our consolidated financial statements. In June 2018, the FASB issued ASU 2018-07, “Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting” to align the measurement and classification guidance for share-based payments to nonemployees with the guidance currently applied to employees, with certain exceptions. The ASU is effective for annual periods beginning after December 15, 2018, and interim periods within those annual periods, with early adoption permitted. We are currently assessing the potential effects of these changes to our consolidated financial statements.

Basis of Presentation and Sig21

Basis of Presentation and Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Inventories Table	June 30, 2018 December 31, 2017 (In Thousands) Parts and supplies $ 42,100 $ 31,703 Work in progress 23,356 10,580 Total inventories $ 65,456 $ 42,283
Accumulated Other Comprehensive Income Table	Three Months Ended Six Months Ended 2018 2017 2018 2017 (In Thousands) Balance, beginning of period $ (12,138 ) $ (10,161 ) $ (11,489 ) $ (10,411 ) Foreign currency translation adjustment (2,873 ) (568 ) (3,522 ) (318 ) Balance, end of period $ (15,011 ) $ (10,729 ) $ (15,011 ) $ (10,729 )
Fair Value Measurements on a Recurring Basis Table	Fair Value Measurements Using Description Total as of Quoted Prices Significant Significant (In Thousands) Series A Preferred Units $ (52,200 ) $ — $ — $ (52,200 ) Liability for foreign currency derivative contracts (241 ) — (241 ) — $ (52,441 ) Fair Value Measurements Using Quoted Prices Significant Significant Description Total as of (In Thousands) Series A Preferred Units $ (70,260 ) $ — $ — $ (70,260 ) Asset for foreign currency derivative contracts 130 — 130 — Liability for foreign currency derivative contracts (10 ) — (10 ) — $ (70,140 )

Long-Term Debt and Other Borr22

Long-Term Debt and Other Borrowings Long-Term Debt and Other Borrowings (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Instrument [Line Items]
Long-Term Debt Table	June 30, 2018 December 31, 2017 Scheduled Maturity (In Thousands) Credit Agreement (presented net of the unamortized deferred financing costs of $4.0 million as of December 31, 2017), terminated on March 22, 2018 August 4, 2019 $ — $ 223,985 New Credit Agreement June 29, 2023 — — 7.25% Senior Notes (presented net of the unamortized discount of $2.5 million as of June 30, 2018 and $2.8 million as of December 31, 2017 and unamortized deferred financing costs of $4.4 million as of June 30, 2018 and $5.0 million as of December 31, 2017) August 15, 2022 288,989 288,191 7.50% Senior Secured Notes (presented net of the unamortized deferred financing costs of $6.5 million as of June 30, 2018) April 1, 2025 343,503 — 632,492 512,176 Less current portion — — Total long-term debt $ 632,492 $ 512,176

Market Risks and Derivative C23

Market Risks and Derivative Contracts Market Risks and Derivative Contracts (Tables)	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions Table	Derivative Contracts US Dollar Notional Amount Traded Exchange Rate Settlement Date (In Thousands) Forward sale Mexican peso $ 6,083 20.71 7/19/2018
Derivatives Designated as Hedging Instruments Table	Foreign currency derivative instruments Balance Sheet Fair Value at Location June 30, 2018 December 31, 2017 (In Thousands) Forward sale contracts Current assets $ — $ 130 Forward sale contracts Current liabilities (241 ) (10 ) Net asset $ (241 ) $ 120

Supplemental Guarantor Financ24

Supplemental Guarantor Financial Information Supplemental Guarantor Financial Information (Tables)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental guarantor financial information tables	Condensed Consolidating Balance Sheet June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated ASSETS Current assets $ — $ 162,535 $ 22,932 $ — $ 185,467 Property, plant, and equipment, net — 594,784 24,877 — 619,661 Investments in subsidiaries 148,632 18,556 — (167,188 ) — Intangible and other assets, net — 34,058 327 — 34,385 Intercompany receivables 625,289 — — (625,289 ) — Total non-current assets 773,921 647,398 25,204 (792,477 ) 654,046 Total assets $ 773,921 $ 809,933 $ 48,136 $ (792,477 ) $ 839,513 LIABILITIES AND PARTNERS' CAPITAL Current liabilities $ 16,123 $ 59,133 $ 2,313 $ — $ 77,569 Amounts payable to affiliates — 1,372 1,298 — 2,670 Long-term debt, net 632,492 — — — 632,492 Series A Preferred Units 52,200 — — — 52,200 Intercompany payables — 600,111 25,178 (625,289 ) — Other long-term liabilities — 685 791 — 1,476 Total liabilities 700,815 661,301 29,580 (625,289 ) 766,407 Total partners' capital 73,106 148,632 18,556 (167,188 ) 73,106 Total liabilities and partners' capital $ 773,921 $ 809,933 $ 48,136 $ (792,477 ) $ 839,513 Condensed Consolidating Balance Sheet December 31, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated ASSETS Current assets $ — $ 78,942 $ 23,205 $ — $ 102,147 Property, plant, and equipment, net — 581,092 25,387 — 606,479 Investments in subsidiaries 169,411 19,146 — (188,557 ) — Intangible and other assets, net — 33,688 618 — 34,306 Intercompany receivables 292,373 — — (292,373 ) — Total non-current assets 461,784 633,926 26,005 (480,930 ) 640,785 Total assets $ 461,784 $ 712,868 $ 49,210 $ (480,930 ) $ 742,932 LIABILITIES AND PARTNERS' CAPITAL Current liabilities $ 8,306 $ 49,639 $ 3,027 $ — $ 60,972 Amounts payable to affiliates — 1,475 1,559 — 3,034 Long-term debt, net 288,191 223,985 — — 512,176 Series A Preferred Units 70,260 — — — 70,260 Intercompany payables — 268,216 24,157 (292,373 ) — Other long-term liabilities — 142 1,321 — 1,463 Total liabilities 366,757 543,457 30,064 (292,373 ) 647,905 Total partners' capital 95,027 169,411 19,146 (188,557 ) 95,027 Total liabilities and partners' capital $ 461,784 $ 712,868 $ 49,210 $ (480,930 ) $ 742,932 Condensed Consolidating Statement of Operations and Comprehensive Income Three Months Ended June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 94,145 $ 8,080 $ (2,303 ) $ 99,922 Cost of revenues (excluding depreciation and amortization expense) — 64,531 5,280 (2,303 ) 67,508 Selling, general and administrative expense 496 9,723 630 — 10,849 Depreciation and amortization — 16,674 774 — 17,448 Insurance recoveries — — — — — Interest expense, net 14,042 (219 ) — — 13,823 Series A Preferred FV Adjustment (586 ) — — — (586 ) Other expense, net — (625 ) 247 — (378 ) Equity in net (income) loss of subsidiaries (4,360 ) (1,433 ) — 5,793 — Income before income tax provision (9,592 ) 5,494 1,149 (5,793 ) (8,742 ) Provision (benefit) for income taxes — 1,134 (284 ) — 850 Net income (loss) (9,592 ) 4,360 1,433 (5,793 ) (9,592 ) Other comprehensive income (loss) (2,873 ) (2,873 ) (2,873 ) 5,746 (2,873 ) Comprehensive income (loss) $ (12,465 ) $ 1,487 $ (1,440 ) $ (47 ) $ (12,465 ) Condensed Consolidating Statement of Operations and Comprehensive Income Three Months Ended June 30, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 70,515 $ 6,321 $ (1,521 ) $ 75,315 Cost of revenues (excluding depreciation and amortization expense) — 47,668 4,438 (1,521 ) 50,585 Selling, general and administrative expense 941 6,902 387 — 8,230 Depreciation and amortization — 16,393 811 — 17,204 Interest expense, net 7,862 2,587 — — 10,449 Series A Preferred FV Adjustment (5,528 ) — — — (5,528 ) Other expense, net — 239 (98 ) — 141 Equity in net income of subsidiaries 3,097 (391 ) — (2,706 ) — Income (loss) before income tax provision (6,372 ) (2,883 ) 783 2,706 (5,766 ) Provision (benefit) for income taxes — 214 392 — 606 Net income (loss) (6,372 ) (3,097 ) 391 2,706 (6,372 ) Other comprehensive income (loss) (568 ) (568 ) (568 ) 1,136 (568 ) Comprehensive income (loss) $ (6,940 ) $ (3,665 ) $ (177 ) $ 3,842 $ (6,940 ) Condensed Consolidating Statement of Operations and Comprehensive Income Six Months Ended June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 173,535 $ 15,466 $ (3,662 ) $ 185,339 Cost of revenues (excluding depreciation and amortization expense) — 118,820 10,336 (3,662 ) 125,494 Selling, general and administrative expense (108 ) 18,161 1,093 — 19,146 Depreciation and amortization — 33,318 1,497 — 34,815 Insurance recoveries — — — — — Interest expense, net 22,141 3,115 — — 25,256 Series A Preferred FV Adjustment 967 — — — 967 Other expense, net — 3,710 (884 ) — 2,826 Equity in net income of subsidiaries 2,329 (2,931 ) — 602 — Income before income tax provision (25,329 ) (658 ) 3,424 (602 ) (23,165 ) Provision for income taxes — 1,671 493 — 2,164 Net income (25,329 ) (2,329 ) 2,931 (602 ) (25,329 ) Other comprehensive income (loss) (3,522 ) (3,522 ) (3,522 ) 7,044 (3,522 ) Comprehensive income (loss) $ (28,851 ) $ (5,851 ) $ (591 ) $ 6,442 $ (28,851 ) Condensed Consolidating Statement of Operations and Comprehensive Income Six Months Ended June 30, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Revenues $ — $ 131,098 $ 12,702 $ (2,933 ) $ 140,867 Cost of revenues (excluding depreciation and amortization expense) — 86,905 8,674 (2,933 ) 92,646 Selling, general and administrative expense 1,984 14,303 709 — 16,996 Depreciation and amortization — 32,917 1,582 — 34,499 Interest expense, net 15,849 4,983 — — 20,832 Series A Preferred FV Adjustment (3,663 ) — — — (3,663 ) Other expense, net — 602 (499 ) — 103 Equity in net income of subsidiaries 7,795 (1,028 ) — (6,767 ) — Income before income tax provision (21,965 ) (7,584 ) 2,236 6,767 (20,546 ) Provision (benefit) for income taxes — 211 1,208 — 1,419 Net income (21,965 ) (7,795 ) 1,028 6,767 (21,965 ) Other comprehensive income (loss) (318 ) (318 ) (318 ) 636 (318 ) Comprehensive income (loss) $ (22,283 ) $ (8,113 ) $ 710 $ 7,403 $ (22,283 ) Condensed Consolidating Statement of Cash Flows Six Months Ended June 30, 2018 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Net cash provided by (used in) operating activities $ — $ (10,424 ) $ 6,151 $ — $ (4,273 ) Investing activities: Purchases of property, plant, and equipment, net — (43,482 ) (3,780 ) — (47,262 ) Advances and other investing activities — 34 — — 34 Net cash provided by (used in) investing activities — (43,448 ) (3,780 ) — (47,228 ) Financing activities: Proceeds from long-term debt 343,800 36,200 — — 380,000 Payments of long-term debt — (258,000 ) — — (258,000 ) Distributions (14,928 ) — — — (14,928 ) Other Financing Activities (7,662 ) — — — (7,662 ) Intercompany contribution (distribution) (321,210 ) 321,210 — — Net cash provided by (used in) financing activities — 99,410 — — 99,410 Effect of exchange rate changes on cash — — 65 — 65 Increase (decrease) in cash and cash equivalents — 45,538 2,436 — 47,974 Cash and cash equivalents at beginning of period — 4,197 3,404 — 7,601 Cash and cash equivalents at end of period $ — $ 49,735 $ 5,840 $ — $ 55,575 Condensed Consolidating Statement of Cash Flows Six Months Ended June 30, 2017 (In Thousands) Issuers Guarantor Other Eliminations Consolidated Net cash provided by (used in) operating activities $ — $ 15,735 $ (4,381 ) $ — $ 11,354 Investing activities: Purchases of property, plant, and equipment, net — (11,850 ) 373 — (11,477 ) Advances and other investing activities — 32 — 32 Net cash provided by (used in) investing activities — (11,818 ) 373 — (11,445 ) Financing activities: Proceeds from long-term debt — 42,500 — — 42,500 Payments of long-term debt — (37,300 ) — — (37,300 ) Distributions (19,391 ) — — — (19,391 ) Other financing activities (82 ) (1,266 ) — — (1,348 ) Intercompany contribution (distribution) 19,510 (19,510 ) — — — Net cash provided by (used in) financing activities — (15,576 ) — — (15,576 ) Effect of exchange rate changes on cash — — (110 ) — (110 ) Increase (decrease) in cash and cash equivalents — (11,659 ) (4,118 ) — (15,777 ) Cash and cash equivalents at beginning of period — 12,201 8,596 — 20,797 Cash and cash equivalents at end of period $ — $ 542 $ 4,478 $ — $ 5,020

Revenue from Contract with Cu25

Revenue from Contract with Customers Revenue from Contract with Customers (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	2018 2019 2020 2021 2022 Total (In Thousands) Compression service contracts remaining performance obligations $ 1,791 $ 3,209 $ 1,027 $ 253 $ 77 $ 6,357

Revenue from Contract with Cu26

Revenue from Contract with Customers Disaggregation of Revenue (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue [Table Text Block]	Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 Compression and related services U.S. $ 48,720 $ 43,999 $ 95,124 $ 88,501 International 7,989 6,257 15,320 12,252 56,709 50,256 110,444 100,753 Aftermarket services U.S. 14,385 10,218 27,738 18,968 International 709 311 1,372 948 15,094 10,529 29,110 19,916 Equipment sales U.S. 28,119 14,434 45,341 19,150 International — 96 444 1,048 28,119 14,530 45,785 20,198 Total Revenue U.S. 91,224 68,651 168,203 126,619 International 8,698 6,664 17,136 14,248 $ 99,922 $ 75,315 $ 185,339 $ 140,867

Revenue from Contract with Cu27

Revenue from Contract with Customers Deferred Revenue (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Deferred Revenue Disclosure [Text Block]	June 30, 2018 (In Thousands) Unearned income, beginning of period $ 15,526 Additional unearned income 57,509 Revenue recognized (44,594 ) Unearned income, end of period $ 28,441

Basis of Presentation and Sig28

Basis of Presentation and Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Revenue Recognition [Line Items]
Revenues	$ 99,922	$ 75,315	$ 185,339	$ 140,867
Inventories Detail [Table]
Parts and supplies	42,100		42,100		$ 31,703
Work in progress	23,356		23,356		10,580
Total inventories	65,456		65,456		$ 42,283
Foreign currency exchange gains (losses)	$ 500	$ (200)	$ (600)	$ (400)

Basis of Presentation and Sig29

Basis of Presentation and Significant Accounting Policies (Details 2)	3 Months Ended				6 Months Ended
	Jun. 30, 2018USD ($)shares$ / shares	Mar. 31, 2018USD ($)shares$ / shares	Dec. 31, 2017USD ($)shares$ / shares	Jun. 30, 2017USD ($)shares	Jun. 30, 2018USD ($)shares	Jun. 30, 2017USD ($)shares	Dec. 31, 2016USD ($)
Preferred Units [Line Items]
Net Income (Loss) Allocated to Limited Partners	$ (9,438,000)			$ (6,245,000)	$ (24,911,000)	$ (21,526,000)
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities	0			(5,430,000)	0	0
Net Income (Loss) Available to Common Stockholders, Diluted	$ (9,438,000)			$ (11,675,000)	$ (24,911,000)	$ (21,526,000)
Weighted Average Limited Partnership Units Outstanding, Basic \| shares	40,401,551			34,470,736	39,563,972	33,979,068
Settlement of Series A Preferred, If Converted \| shares				10,829,321		10,829,321
Proceeds from Convertible Debt						$ 77,300,000
Weighted Average Limited Partnership Units Outstanding, Diluted \| shares				45,300,057		33,979,068
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	$ (52,200,000)				$ (52,200,000)
Accumulated Other Comprehensive Income [Table]
Balance, beginning of period	(12,138,000)	$ (11,489,000)		$ (10,161,000)	(11,489,000)	$ (10,411,000)
Foreign currency translation adjustment	(2,873,000)			(568,000)	(3,522,000)	(318,000)
Balance, end of period	$ (15,011,000)	$ (12,138,000)	$ (11,489,000)	$ (10,729,000)	(15,011,000)	$ (10,729,000)
Distribution declaration date	Jul. 20, 2018	Apr. 20, 2018	Jan. 22, 2018
Paid-in-kind Distribution, Number of Units \| shares	131,569	152,381	172,210
Amount of declared distribution \| $ / shares	$ 0.1875	$ 0.1875	$ 0.1875
Amount of declared distribution on an annualized basis \| $ / shares	$ 0.75	$ 0.75	$ 0.75
Distribution payment date	Aug. 14, 2018	May 15, 2018	Feb. 14, 2018
Distribution record date	Aug. 1, 2018	May 1, 2018	Feb. 1, 2018
Insurance Recoveries	$ 0
CSI Compressco Senior Notes [Member]
Debt Instrument [Line Items]
Fair value of Senior Notes	271,500,000		$ 279,700,000		271,500,000
Carrying value of Senior Notes	$ 295,900,000				$ 295,900,000
Senior Note interest rate	7.25%		7.25%		7.25%
Compressco Partners Senior Notes 7.50% [Member]
Debt Instrument [Line Items]
Fair value of Senior Notes	$ 351,800,000				$ 351,800,000
Carrying value of Senior Notes	$ 350,000,000				$ 350,000,000
Senior Note interest rate	7.50%				7.50%
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	$ 0		$ 0		$ 0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0		0		0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	(52,200,000)		(70,260,000)		(52,200,000)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	(52,200,000)		(70,260,000)		(52,200,000)
Asset for foreign currency derivative contracts			130,000
Foreign Currency Contracts, Liability, Fair Value Disclosure	241,000				241,000		$ 10,000
Total	(52,441,000)		(70,140,000)		(52,441,000)
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset for foreign currency derivative contracts			0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0				0		0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset for foreign currency derivative contracts			130,000
Foreign Currency Contracts, Liability, Fair Value Disclosure	241,000				241,000		10,000
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset for foreign currency derivative contracts			$ 0
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ 0				0		$ 0
TETRA [Member]
Preferred Units [Line Items]
Proceeds from Convertible Debt					$ 10,000,000

Long-Term Debt and Other Borr30

Long-Term Debt and Other Borrowings (Details)	3 Months Ended			6 Months Ended		12 Months Ended
Long-Term Debt and Other Borrowings (Details)	Jun. 30, 2018USD ($)shares$ / shares	Mar. 31, 2018shares$ / shares	Dec. 31, 2017USD ($)shares$ / shares	Jun. 30, 2018USD ($)$ / sharesshares	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
Net Cash Provided by (Used in) Operating Activities				$ (4,273,000)	$ 11,354,000
Payments to Acquire Property, Plant, and Equipment				47,262,000	11,477,000
Proceeds from Issuance of Debt				343,800,000
Distributionstononcontrollingholders				$ (14,928,000)	(19,391,000)
Distribution Made to Limited Partner, Declaration Date	Jul. 20, 2018	Apr. 20, 2018	Jan. 22, 2018
Paid-in-kind Distribution, Number of Units \| shares	131,569	152,381	172,210
Distribution Made to Limited Partner, Distributions Declared, Per Unit \| $ / shares	$ 0.1875	$ 0.1875	$ 0.1875
Distribution Made to Limited Partner, Distribution Date	Aug. 14, 2018	May 15, 2018	Feb. 14, 2018
Distribution Made to Limited Partner, Date of Record	Aug. 1, 2018	May 1, 2018	Feb. 1, 2018
Shares Issued, Price Per Share \| $ / shares	$ 11.43			$ 11.43
Proceeds from Convertible Debt					77,300,000
Annualized distribution per unit on convertible debt \| $ / shares				$ 1.2573
AnnualizedDistributionMadeToMemberOrLimitedPartnerDistributionsDeclaredPerUnit \| $ / shares	$ 0.75	$ 0.75	$ 0.75
Liabilities, Fair Value Disclosure, Recurring	$ 52,200,000			$ 52,200,000
Debt Instrument, Fee Amount	6,700,000			6,700,000
Long-term debt	632,492,000		$ 512,176,000	632,492,000		$ 512,176,000
Less current portion	0		0	0		0
Long-term debt, net	632,492,000		512,176,000	632,492,000		512,176,000
Payments of Financing Costs					$ 0
Credit Agreement [Member]
Debt Instrument [Line Items]
Unamortized deferred finance costs	0		4,000,000	0		4,000,000
Long-term debt	0		223,985,000	$ 0		$ 223,985,000
Scheduled maturity date				Aug. 4, 2019		Aug. 4, 2019
Payments of Financing Costs				$ (3,541,000)
New Credit Agreement [Member]
Debt Instrument [Line Items]
Payments of Financing Costs				1,300,000
CSI Compressco Senior Notes [Member]
Debt Instrument [Line Items]
Senior Notes, unamortized discount	2,500,000		2,800,000	2,500,000		$ 2,800,000
Unamortized deferred finance costs	4,400,000		5,000,000	4,400,000		5,000,000
Long-term debt	$ 288,989,000		$ 288,191,000	$ 288,989,000		$ 288,191,000
Scheduled maturity date				Aug. 15, 2022		Aug. 15, 2022
Senior Note interest rate	7.25%		7.25%	7.25%		7.25%
Compressco Partners Senior Notes 7.50% [Member]
Debt Instrument [Line Items]
Unamortized deferred finance costs	$ 6,500,000			$ 6,500,000
Long-term debt	$ 343,503,000		$ 0	$ 343,503,000		$ 0
Scheduled maturity date				Apr. 1, 2025
Senior Note interest rate	7.50%			7.50%
CSI Compressco [Member]
Debt Instrument [Line Items]
Number of Shares of Convertible Debt \| shares				6,999,126
Preferred Units, Outstanding \| shares	4,458,803			4,458,803
CSI Compressco [Member] \| New Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term debt	$ 0		$ 0	$ 0		$ 0
Scheduled maturity date				Jun. 29, 2023
Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage				100.00%
Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage				100.00%
Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage				100.00%
Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage				100.00%

Series A Preferred Units Seri31

Series A Preferred Units Series A Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Preferred Units [Line Items]
Shares Issued, Price Per Share	$ 11.43		$ 11.43
Proceeds from Convertible Debt				$ 77,300
Dividend Rate, Percentage			11.00%
Annualized distribution per unit on convertible debt			$ 1.2573
Maximum settlement of preferred unit conversion	25,500,000		25,500,000
Liabilities, Fair Value Disclosure, Recurring	$ 52,200		$ 52,200
Liabilities, Fair Value Adjustment	(586)	$ (5,528)	$ 967	$ (3,663)
Maximum Settlement of Preferred, If Converted			9,900,000
Settlement of Series A Preferred, If settled	$ 55,200		$ 55,200
Incremental Settlement of Series A Preferred, If converted	2,400,000		2,400,000
TETRA [Member]
Preferred Units [Line Items]
Number of Shares of Convertible Debt			874,891
Proceeds from Convertible Debt			$ 10,000
CSI Compressco [Member]
Preferred Units [Line Items]
Number of Shares of Convertible Debt			6,999,126
Preferred Units, Outstanding	4,458,803		4,458,803

Market Risks and Derivative C32

Market Risks and Derivative Contracts (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Derivatives, Fair Value [Line Items]
Forward purchase contracts					$ 120
Derivative Liability, Fair Value, Gross Liability	$ (241)		$ (241)
Net gains associated with foreign currency derivative program	700	$ (100)	200	$ (400)
Forward Sale Contract, Mexican Pesos [Member]
Derivative [Line Items]
U.S. Dollar notional amount	$ 6,083		$ 6,083
Traded exchange rate	20.71		20.71
Value date			Jul. 19, 2018
Current Assets [Member]
Derivatives, Fair Value [Line Items]
Forward purchase contracts	$ 0		$ 0		130
Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ (241)		$ (241)		$ (10)

Related Party Transactions (Det

Related Party Transactions (Details)	6 Months Ended
Related Party Transactions (Details)	Jun. 30, 2018
Related Party Transactions [Abstract]
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest	37.00%
Preferred Unit Percentage Ownership	12.60%
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	2.00%

Income Taxes Income Tax (Detail

Income Taxes Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Income Taxes Income Tax (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2018
Income Statement [Abstract]
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount		$ 21,900
Effective Income Tax Rate Reconciliation, Percent	(9.70%)	(9.30%)

Supplemental Guarantor Financ35

Supplemental Guarantor Financial Information Supplemental Guarantor Financial Information (Balance Sheet) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Current assets	$ 185,467	$ 102,147
Property, plant, and equipment, net	619,661	606,479
Investments in affiliates	0	0
Intangible and other assets, net	34,385	34,306
Intercompany receivables	0	0
Total non-current assets	654,046	640,785
Total assets	839,513	742,932
LIABILITIES AND PARTNERS' CAPITAL
Current liabilities	77,569	60,972
Amounts payable to affiliate	2,670	3,034
Long-term debt	632,492	512,176
Preferred Units	52,200	70,260
Intercompany payables	0	0
Other long-term liabilities	1,476	1,463
Total liabilities	766,407	647,905
Total partners' capital	73,106	95,027
Total liabilities and partners' capital	839,513	742,932
Parent Company [Member]
ASSETS
Current assets	0	0
Property, plant, and equipment, net	0	0
Investments in affiliates	148,632	169,411
Intangible and other assets, net	0	0
Intercompany receivables	625,289	292,373
Total non-current assets	773,921	461,784
Total assets	773,921	461,784
LIABILITIES AND PARTNERS' CAPITAL
Current liabilities	16,123	8,306
Amounts payable to affiliate	0	0
Long-term debt	632,492	288,191
Preferred Units	52,200	70,260
Intercompany payables	0	0
Other long-term liabilities	0	0
Total liabilities	700,815	366,757
Total partners' capital	73,106	95,027
Total liabilities and partners' capital	773,921	461,784
Guarantor Subsidiaries [Member]
ASSETS
Current assets	162,535	78,942
Property, plant, and equipment, net	594,784	581,092
Investments in affiliates	18,556	19,146
Intangible and other assets, net	34,058	33,688
Intercompany receivables	0	0
Total non-current assets	647,398	633,926
Total assets	809,933	712,868
LIABILITIES AND PARTNERS' CAPITAL
Current liabilities	59,133	49,639
Amounts payable to affiliate	1,372	1,475
Long-term debt	0	223,985
Preferred Units	0	0
Intercompany payables	600,111	268,216
Other long-term liabilities	685	142
Total liabilities	661,301	543,457
Total partners' capital	148,632	169,411
Total liabilities and partners' capital	809,933	712,868
Other Subsidiaries [Member]
ASSETS
Current assets	22,932	23,205
Property, plant, and equipment, net	24,877	25,387
Investments in affiliates	0	0
Intangible and other assets, net	327	618
Intercompany receivables	0	0
Total non-current assets	25,204	26,005
Total assets	48,136	49,210
LIABILITIES AND PARTNERS' CAPITAL
Current liabilities	2,313	3,027
Amounts payable to affiliate	1,298	1,559
Long-term debt	0	0
Preferred Units	0	0
Intercompany payables	25,178	24,157
Other long-term liabilities	791	1,321
Total liabilities	29,580	30,064
Total partners' capital	18,556	19,146
Total liabilities and partners' capital	48,136	49,210
Consolidation, Eliminations [Member]
ASSETS
Current assets	0	0
Property, plant, and equipment, net	0	0
Investments in affiliates	(167,188)	(188,557)
Intangible and other assets, net	0	0
Intercompany receivables	(625,289)	(292,373)
Total non-current assets	(792,477)	(480,930)
Total assets	(792,477)	(480,930)
LIABILITIES AND PARTNERS' CAPITAL
Current liabilities	0	0
Amounts payable to affiliate	0	0
Long-term debt	0	0
Preferred Units	0	0
Intercompany payables	(625,289)	(292,373)
Other long-term liabilities	0	0
Total liabilities	(625,289)	(292,373)
Total partners' capital	(167,188)	(188,557)
Total liabilities and partners' capital	$ (792,477)	$ (480,930)

Supplemental Guarantor Financ36

Supplemental Guarantor Financial Information Supplemental Guarantor Financial Information (Statement of Operations) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Income Statements, Captions [Line Items]
Revenues	$ 99,922	$ 75,315	$ 185,339	$ 140,867
Cost of revenues	67,508	50,585	125,494	92,646
Selling, general, and administrative expense	10,849	8,230	19,146	16,996
Depreciation and amortization	17,448	17,204	34,815	34,499
Insurance Recoveries	0
Interest expense, net	13,823	10,449	25,256	20,832
Liabilities, Fair Value Adjustment	(586)	(5,528)	967	(3,663)
Other expense, net	(378)	141	2,826	103
Equity in net income of subsidiaries	0	0	0	0
Income (loss) before income tax provision	(8,742)	(5,766)	(23,165)	(20,546)
Provision (benefit) for income taxes	850	606	2,164	1,419
Net income	(9,592)	(6,372)	(25,329)	(21,965)
Foreign currency translation adjustment	(2,873)	(568)	(3,522)	(318)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(12,465)	(6,940)	(28,851)	(22,283)
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0	0	0
Cost of revenues	0	0	0	0
Selling, general, and administrative expense	496	941	(108)	1,984
Depreciation and amortization	0	0	0	0
Insurance Recoveries	0
Interest expense, net	14,042	7,862	22,141	15,849
Liabilities, Fair Value Adjustment	(586)	(5,528)	967	(3,663)
Other expense, net	0	0	0	0
Equity in net income of subsidiaries	(4,360)	3,097	2,329	7,795
Income (loss) before income tax provision	(9,592)	(6,372)	(25,329)	(21,965)
Provision (benefit) for income taxes	0	0	0	0
Net income	(9,592)	(6,372)	(25,329)	(21,965)
Foreign currency translation adjustment	(2,873)	(568)	(3,522)	(318)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(12,465)	(6,940)	(28,851)	(22,283)
Guarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	94,145	70,515	173,535	131,098
Cost of revenues	64,531	47,668	118,820	86,905
Selling, general, and administrative expense	9,723	6,902	18,161	14,303
Depreciation and amortization	16,674	16,393	33,318	32,917
Insurance Recoveries	0
Interest expense, net	(219)	2,587	3,115	4,983
Liabilities, Fair Value Adjustment	0	0	0	0
Other expense, net	(625)	239	3,710	602
Equity in net income of subsidiaries	(1,433)	(391)	(2,931)	(1,028)
Income (loss) before income tax provision	5,494	(2,883)	(658)	(7,584)
Provision (benefit) for income taxes	1,134	214	1,671	211
Net income	4,360	(3,097)	(2,329)	(7,795)
Foreign currency translation adjustment	(2,873)	(568)	(3,522)	(318)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	1,487	(3,665)	(5,851)	(8,113)
Other Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	8,080	6,321	15,466	12,702
Cost of revenues	5,280	4,438	10,336	8,674
Selling, general, and administrative expense	630	387	1,093	709
Depreciation and amortization	774	811	1,497	1,582
Insurance Recoveries	0
Interest expense, net	0	0	0	0
Liabilities, Fair Value Adjustment	0	0	0	0
Other expense, net	247	(98)	(884)	(499)
Equity in net income of subsidiaries	0	0	0	0
Income (loss) before income tax provision	1,149	783	3,424	2,236
Provision (benefit) for income taxes	(284)	392	493	1,208
Net income	1,433	391	2,931	1,028
Foreign currency translation adjustment	(2,873)	(568)	(3,522)	(318)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(1,440)	(177)	(591)	710
Consolidation, Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	(2,303)	(1,521)	(3,662)	(2,933)
Cost of revenues	(2,303)	(1,521)	(3,662)	(2,933)
Selling, general, and administrative expense	0	0	0	0
Depreciation and amortization	0	0	0	0
Insurance Recoveries	0
Interest expense, net	0	0	0	0
Liabilities, Fair Value Adjustment	0	0	0	0
Other expense, net	0	0	0	0
Equity in net income of subsidiaries	5,793	(2,706)	602	(6,767)
Income (loss) before income tax provision	(5,793)	2,706	(602)	6,767
Provision (benefit) for income taxes	0	0	0	0
Net income	(5,793)	2,706	(602)	6,767
Foreign currency translation adjustment	5,746	1,136	7,044	636
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ (47)	$ 3,842	$ 6,442	$ 7,403

Supplemental Guarantor Financ37

Supplemental Guarantor Financial Information Supplemental Guarantor Financial Information (Statement of Cash Flows) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Condensed Cash Flow Statements, Captions [Line Items]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 55,575	$ 5,020	$ 7,601	$ 20,797
Net cash provided by operating activities	(4,273)	11,354
Investing activities:
Purchases of property, plant, and equipment, net	(47,262)	(11,477)
Advances and other investing activities	34	32
Net cash used in investing activities	(47,228)	(11,445)
Financing activities:
Proceeds from long-term debt, net	380,000	42,500
Payments of long-term debt	(258,000)	(37,300)
Proceeds from Convertible Debt		77,300
Distributionstononcontrollingholders	(14,928)	(19,391)
Financing costs	(7,662)	(1,348)
Intercompany contribution (distribution)	0	0
Net cash used in financing activities	99,410	(15,576)
Effect of exchange rate changes on cash	65	(110)
Increase (decrease) in cash and cash equivalents	47,974	(15,777)
Cash and cash equivalents at beginning of period	7,601	20,797
Cash and cash equivalents at end of period	51,370	5,020
Parent Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	0	0
Investing activities:
Purchases of property, plant, and equipment, net	0	0
Advances and other investing activities	0	0
Net cash used in investing activities	0	0
Financing activities:
Proceeds from long-term debt, net	343,800	0
Payments of long-term debt	0	0
Distributionstononcontrollingholders	(14,928)	(19,391)
Financing costs	(7,662)	(82)
Intercompany contribution (distribution)	(321,210)	19,510
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash	0	0
Increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	(10,424)	15,735
Investing activities:
Purchases of property, plant, and equipment, net	(43,482)	(11,850)
Advances and other investing activities	34	32
Net cash used in investing activities	(43,448)	(11,818)
Financing activities:
Proceeds from long-term debt, net	36,200	42,500
Payments of long-term debt	(258,000)	(37,300)
Distributionstononcontrollingholders	0	0
Financing costs	0	(1,266)
Intercompany contribution (distribution)	321,210	(19,510)
Net cash used in financing activities	99,410	(15,576)
Effect of exchange rate changes on cash	0	0
Increase (decrease) in cash and cash equivalents	45,538	(11,659)
Cash and cash equivalents at beginning of period	4,197	12,201
Cash and cash equivalents at end of period	49,735	542
Other Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	6,151	(4,381)
Investing activities:
Purchases of property, plant, and equipment, net	(3,780)	373
Advances and other investing activities	0
Net cash used in investing activities	(3,780)	373
Financing activities:
Proceeds from long-term debt, net	0	0
Payments of long-term debt	0	0
Distributionstononcontrollingholders	0	0
Financing costs	0	0
Intercompany contribution (distribution)		0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash	65	(110)
Increase (decrease) in cash and cash equivalents	2,436	(4,118)
Cash and cash equivalents at beginning of period	3,404	8,596
Cash and cash equivalents at end of period	5,840	4,478
Consolidation, Eliminations [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	0	0
Investing activities:
Purchases of property, plant, and equipment, net	0	0
Advances and other investing activities	0	0
Net cash used in investing activities	0	0
Financing activities:
Proceeds from long-term debt, net	0	0
Payments of long-term debt	0	0
Distributionstononcontrollingholders	0	0
Financing costs	0	0
Intercompany contribution (distribution)	0	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash	0	0
Increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	$ 0	$ 0

Subsequent Events (Details)

Subsequent Events (Details)	3 Months Ended
Subsequent Events (Details)	Jun. 30, 2018shares$ / shares	Mar. 31, 2018shares$ / shares	Dec. 31, 2017shares$ / shares
Subsequent Events [Abstract]
Distribution declaration date	Jul. 20, 2018	Apr. 20, 2018	Jan. 22, 2018
Amount of declared distribution	$ 0.1875	$ 0.1875	$ 0.1875
Amount of declared distribution on an annualized basis	$ 0.75	$ 0.75	$ 0.75
Paid-in-kind Distribution, Number of Units \| shares	131,569	152,381	172,210
Distribution payment date	Aug. 14, 2018	May 15, 2018	Feb. 14, 2018
Distribution record date	Aug. 1, 2018	May 1, 2018	Feb. 1, 2018

Revenue from Contract with Cu39

Revenue from Contract with Customers Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation	$ 6,357		$ 6,357
Revenue from Contract with Customer, Including Assessed Tax	99,922	$ 75,315	185,339	$ 140,867
Aftermarket services	15,094	10,529	29,110	19,916
Equipment and parts sales	28,119	14,530	45,785	20,198
Compression and related services	56,709	50,256	110,444	100,753
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	91,224	68,651	168,203	126,619
Aftermarket services	14,385	10,218	27,738	18,968
Equipment and parts sales	28,119	14,434	45,341	19,150
Compression and related services	48,720	43,999	95,124	88,501
Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	8,698	6,664	17,136	14,248
Aftermarket services	709	311	1,372	948
Equipment and parts sales	0	96	444	1,048
Compression and related services	$ 7,989	$ 6,257	$ 15,320	$ 12,252

Revenue from Contract with Cu40

Revenue from Contract with Customers Contract Assets and Liabilities (Details) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	$ 6,357,000
Allowance for Doubtful Accounts Receivable, Write-offs	300,000	$ 600,000
Contract Revenue Cost	0
Deferred Revenue	28,441,000		$ 15,526,000
Total Change in Deferred Revenue	57,509,000
Contract with Customer, Asset, Gross	0
Contract with Customer, Liability, Revenue Recognized	(44,600,000)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	1,791,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	3,209,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	1,027,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	253,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	$ 77,000

Revenue from Contract with Cu41

Revenue from Contract with Customers Compression and related services (Details) $ in Thousands	Jun. 30, 2018USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	$ 6,357
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	1,791
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	3,209
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	1,027
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	253
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation	$ 77