Exterran (EXTN) 10-K 27 Feb 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Feb. 19, 2019	Jun. 30, 2018
Document and Entity Information
Entity Registrant Name	Exterran Corporation
Entity Central Index Key	1,635,881
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Public Float			$ 791,626,980
Entity Common Stock, Shares Outstanding		36,142,190
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 19,300	$ 49,145
Restricted cash	178	546
Accounts receivable, net of allowance of $5,474 and $5,388, respectively	248,467	266,052
Inventory, net (Note 5)	150,689	107,909
Costs and estimated earnings in excess of billings on uncompleted contracts	0	40,695
Contract assets (Note 3)	91,602	0
Other current assets	44,234	38,707
Current assets held for sale (Note 8)	0	15,761
Current assets associated with discontinued operations (Note 4)	11,605	23,751
Total current assets	566,075	542,566
Property, plant and equipment, net (Note 6)	901,577	822,279
Deferred income taxes (Note 16)	11,370	10,550
Intangible and other assets, net (Note 7)	86,371	76,980
Long-term assets held for sale (Note 8)	0	4,732
Long-term assets associated with discontinued operations (Note 4)	1,661	3,700
Total assets	1,567,054	1,460,807
Current liabilities:
Accounts payable, trade	165,744	148,744
Accrued liabilities (Note 10)	123,335	114,336
Deferred revenue	0	23,902
Billings on uncompleted contracts in excess of costs and estimated earnings	0	89,565
Contract liabilities (Note 3)	153,483	0
Current liabilities associated with discontinued operations (Note 4)	14,767	31,971
Total current liabilities	457,329	408,518
Long-term debt (Note 11)	403,810	368,472
Deferred income taxes (Note 16)	6,005	9,746
Long-term deferred revenue	0	92,485
Long-term contract liabilities (Note 3)	101,363	0
Other long-term liabilities	39,812	20,272
Long-term liabilities associated with discontinued operations (Note 4)	5,914	6,528
Total liabilities	1,014,233	906,021
Commitments and contingencies (Note 21)
Stockholders’ equity:
Preferred stock, $0.01 par value per share; 50,000,000 shares authorized; zero issued	0	0
Common stock, $0.01 par value per share; 250,000,000 shares authorized; 36,868,066 and 36,193,930 shares issued, respectively	369	362
Additional paid-in capital	734,458	739,164
Accumulated deficit	(208,677)	(223,510)
Treasury stock — 721,280 and 453,178 common shares, at cost, respectively	(11,560)	(6,937)
Accumulated other comprehensive income	38,231	45,707
Total stockholders’ equity (Note 17)	552,821	554,786
Total liabilities and stockholders’ equity	$ 1,567,054	$ 1,460,807

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 5,474	$ 5,388
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	36,868,066	36,193,930
Treasury stock, common shares (in shares)	721,280	453,178

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues (Note 3):
Revenue	$ 1,360,856	$ 1,215,294	$ 905,397
Costs and expenses:
Cost of sales (excluding depreciation and amortization expense):	977,428	868,154	596,406
Selling, general and administrative	178,401	176,318	157,485
Depreciation and amortization	123,922	107,824	132,886
Long-lived asset impairment (Note 13)	3,858	5,700	14,495
Restatement related charges (recoveries), net (Note 14)	(276)	3,419	18,879
Restructuring and other charges (Note 15)	1,997	3,189	22,038
Interest expense	29,217	34,826	34,181
Equity in income of non-consolidated affiliates (Note 9)	0	0	(10,403)
Other (income) expense, net	6,484	(975)	(13,046)
Total costs and expenses	1,321,031	1,198,455	952,921
Income (loss) before income taxes	39,825	16,839	(47,524)
Provision for income taxes (Note 16)	39,433	22,695	124,242
Income (loss) from continuing operations	392	(5,856)	(171,766)
Income (loss) from discontinued operations, net of tax (Note 4)	24,462	39,736	(56,171)
Net income (loss)	$ 24,854	$ 33,880	$ (227,937)
Basic net income (loss) per common share (Note 19):
Income (loss) from continuing operations per common share (in dollars per share)	$ 0.01	$ (0.17)	$ (4.97)
Income (loss) from discontinued operations per common share (in dollars per share)	0.67	1.14	(1.62)
Net income (loss) per common share (in dollars per share)	0.68	0.97	(6.59)
Diluted net income (loss) per common share (Note 19):
Income (loss) from continuing operations per common share (in dollars per share)	0.01	(0.17)	(4.97)
Income (loss) from discontinued operations per common share (in dollars per share)	0.67	1.14	(1.62)
Net income (loss) per common share (in dollars per share)	$ 0.68	$ 0.97	$ (6.59)
Weighted average common shares outstanding used in net income (loss) per common share (Note 19):
Basic (in shares)	35,433	34,959	34,568
Diluted (in shares)	35,489	34,959	34,568
Contract operations
Revenues (Note 3):
Revenue	$ 360,973	$ 375,269	$ 392,463
Costs and expenses:
Cost of sales (excluding depreciation and amortization expense):	122,138	133,380	143,670
Aftermarket services
Revenues (Note 3):
Revenue	120,676	107,063	120,550
Costs and expenses:
Cost of sales (excluding depreciation and amortization expense):	89,666	78,221	87,342
Product sales
Revenues (Note 3):
Revenue	879,207	732,962	392,384
Costs and expenses:
Cost of sales (excluding depreciation and amortization expense):	$ 765,624	$ 656,553	$ 365,394

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 14,073	$ 5,369	$ 75	$ 5,337	$ 6,662	$ 3,353	$ 3,544	$ 20,321	$ 24,854	$ 33,880	$ (227,937)
Other comprehensive income (loss):
Foreign currency translation adjustment									(7,476)	(1,801)	18,310
Comprehensive income (loss)									$ 17,378	$ 32,079	$ (209,627)

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income
Beginning balance (in shares) at Dec. 31, 2015		35,153,358			5,776
Beginning balance at Dec. 31, 2015	$ 805,936	$ 352	$ 805,755	$ (29,315)	$ (54)	$ 29,198
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(227,937)			(227,937)
Options exercised (in shares)		61,177
Options exercised	786		786
Foreign currency translation adjustment	18,310					18,310
Transfer to Archrock, Inc. (Note 17)	(49,176)		(49,176)
Treasury stock purchased (in shares)					(196,654)
Treasury stock purchased	(2,091)				$ (2,091)
Stock-based compensation, net of forfeitures (in shares)		426,578
Stock-based compensation, net of forfeitures	10,966	$ 4	10,962
Other	(23)		(23)
Ending balance (in shares) at Dec. 31, 2016		35,641,113			202,430
Ending balance at Dec. 31, 2016	556,771	$ 356	768,304	(257,252)	$ (2,145)	47,508
Increase (Decrease) in Stockholders' Equity
Net income (loss)	33,880			33,880
Options exercised (in shares)		69,122
Options exercised	684	$ 1	683
Foreign currency translation adjustment	(1,801)					(1,801)
Transfer to Archrock, Inc. (Note 17)	(44,720)		(44,720)
Treasury stock purchased (in shares)					(250,748)
Treasury stock purchased	(4,792)				$ (4,792)
Stock-based compensation, net of forfeitures (in shares)		483,695
Stock-based compensation, net of forfeitures	$ 14,764	$ 5	14,759
Ending balance (in shares) at Dec. 31, 2017	36,193,930	36,193,930			453,178
Ending balance at Dec. 31, 2017	$ 554,786	$ 362	739,164	(223,510)	$ (6,937)	45,707
Increase (Decrease) in Stockholders' Equity
Net income (loss)	$ 24,854			24,854
Options exercised (in shares)	136,000	136,847
Options exercised	$ 548	$ 1	547
Foreign currency translation adjustment	(7,476)					(7,476)
Transfer to Archrock, Inc. (Note 17)	(19,814)		(19,814)
Treasury stock purchased (in shares)					(268,102)
Treasury stock purchased	(4,623)				$ (4,623)
Stock-based compensation, net of forfeitures (in shares)		537,289
Stock-based compensation, net of forfeitures	$ 14,567	$ 6	14,561
Ending balance (in shares) at Dec. 31, 2018	36,868,066	36,868,066			721,280
Ending balance at Dec. 31, 2018	$ 552,821	$ 369	$ 734,458	$ (208,677)	$ (11,560)	$ 38,231

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ 24,854	$ 33,880	$ (227,937)
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	123,922	107,824	132,886
Long-lived asset impairment	3,858	5,700	14,495
Amortization of deferred financing costs	3,347	4,714	4,584
(Income) loss from discontinued operations, net of tax	(24,462)	(39,736)	56,171
Provision for doubtful accounts	86	863	2,972
Gain on sale of property, plant and equipment	(629)	(2,517)	(2,986)
Equity in income of non-consolidated affiliates	0	0	(10,403)
(Gain) loss on remeasurement of intercompany balances	5,241	(516)	(9,268)
Loss on foreign currency derivatives	0	0	709
Loss on sale of businesses	1,714	111	0
Stock-based compensation expense	14,567	14,764	10,966
Deferred income tax provision (benefit)	1,537	(3,193)	71,090
Changes in assets and liabilities:
Accounts receivable and notes	8,669	(65,311)	126,276
Inventory	(59,676)	20,594	49,736
Costs and estimated earnings versus billings on uncompleted contracts	0	40,949	24,637
Contract assets	(34,571)	0	0
Other current assets	5,045	(1,541)	(7,074)
Accounts payable and other liabilities	13,801	62,029	2,078
Deferred revenue	0	(13,711)	24,414
Contract liabilities	62,934	0	0
Other	3,059	(14,483)	(857)
Net cash provided by continuing operations	153,296	150,420	262,489
Net cash provided by (used in) discontinued operations	4,004	(1,794)	1,016
Net cash provided by operating activities	157,300	148,626	263,505
Cash flows from investing activities:
Capital expenditures	(215,108)	(131,673)	(73,670)
Proceeds from sale of property, plant and equipment	2,530	8,866	2,814
Proceeds from sale of businesses	5,000	894	0
Return of investments in non-consolidated affiliates	0	0	10,403
Settlement of foreign currency derivatives	0	0	(709)
Net cash used in continuing operations	(207,578)	(121,913)	(61,162)
Net cash provided by discontinued operations	17,009	19,575	36,079
Net cash used in investing activities	(190,569)	(102,338)	(25,083)
Cash flows from financing activities:
Proceeds from borrowings of debt	585,014	501,088	430,758
Repayments of debt	(550,497)	(476,503)	(610,261)
Cash transfer to Archrock, Inc. (Note 17)	(18,744)	(44,720)	(49,176)
Payments for debt issuance costs	(4,801)	(7,911)	(779)
Proceeds from stock options exercised	548	684	786
Purchases of treasury stock	(4,623)	(4,792)	(2,091)
Net cash provided by (used in) financing activities	6,897	(32,154)	(230,763)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(3,841)	(792)	(1,832)
Net increase (decrease) in cash, cash equivalents and restricted cash	(30,213)	13,342	5,827
Cash, cash equivalents and restricted cash at beginning of period	49,691	36,349	30,522
Cash, cash equivalents and restricted cash at end of period	19,478	49,691	36,349
Supplemental disclosure of cash flow information:
Income taxes paid, net	11,601	47,403	57,580
Interest paid, net of capitalized amounts	26,278	28,178	29,046
Supplemental disclosure of non-cash transactions:
Accrued capital expenditures	21,479	16,735	5,985
Non-cash proceeds from the sale of a plant	0	0	7,000
Non-cash proceeds from sale of business	$ 14,573	$ 0	$ 0

Description of Business and Bas

Description of Business and Basis of Presentation	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation	Note 1. Description of Business and Basis of Presentation Description of Business Exterran Corporation (together with its subsidiaries, “Exterran Corporation,” “our,” “we” or “us”), a Delaware corporation formed in March 2015, is a global systems and process company offering solutions in the oil, gas, water and power markets. We are a leader in natural gas processing and treatment and compression products and services, providing critical midstream infrastructure solutions to customers throughout the world. Outside the United States of America (“U.S.”), we are a leading provider of full-service natural gas contract compression and a supplier of aftermarket parts and services. We provide our products and services to a global customer base consisting of companies engaged in all aspects of the oil and natural gas industry, including large integrated oil and natural gas companies, national oil and natural gas companies, independent oil and natural gas producers and oil and natural gas processors, gatherers and pipeline operators. Our manufacturing facilities are located in the U.S., Singapore and the United Arab Emirates. We operate in three primary business lines: contract operations, aftermarket services and product sales. In our contract operations business line, we provide compression and processing and treating services through the operation of our natural gas compression equipment and crude oil and natural gas production and process equipment for our customers. In our aftermarket services business line, we sell parts and components and provide operations, maintenance, repair, overhaul, upgrade, startup and commissioning and reconfiguration services to customers who own their own oil and natural gas compression, production, processing, treating and related equipment. In our product sales business line, we design, engineer, manufacture, install and sell natural gas compression packages as well as equipment used in the treating and processing of crude oil and natural gas to our customers throughout the world and for use in our contract operations business line. We also offer our customers, on either a contract operations basis or a sale basis, the engineering, design, project management, procurement and construction services necessary to incorporate our products into production, processing and compression facilities, which we refer to as integrated projects. On November 3, 2015, Archrock, Inc. (named Exterran Holdings, Inc. prior to November 3, 2015) (“Archrock”) completed the spin-off (the ‘‘Spin-off”) of its international contract operations, international aftermarket services and global fabrication businesses into an independent, publicly traded company named Exterran Corporation. Following the completion of the Spin-off, we and Archrock became and continue to be independent, publicly traded companies with separate boards of directors and management. Basis of Presentation The accompanying consolidated financial statements of Exterran Corporation included herein have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain reclassifications resulting from the adoption of ASU 2016-18, Restricted Cash have been made to the statement of cash flows for the prior year periods to conform to the current year presentation. We refer to the consolidated financial statements collectively as “financial statements,” and individually as “balance sheets,” “statements of operations,” “statements of comprehensive income (loss),” “statements of stockholders’ equity” and “statements of cash flows” herein.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	Note 2. Significant Accounting Policies Use of Estimates in the Financial Statements The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets, liabilities, revenue and expenses, as well as the disclosures of contingent assets and liabilities. Because of the inherent uncertainties in this process, actual future results could differ from those expected at the reporting date. Significant estimates are required for contracts within our product sales segments that are accounted for based largely on our estimates on the extent of progress toward completion of the contracts, contract revenues and contract costs. As of December 31, 2018, we have made these significant estimates on all of our ongoing contracts. However, it is possible that current estimates could change due to unforeseen events, which could result in adjustments to our estimates. Variations from estimated contract performance could result in material adjustments to operating results. Management believes that the estimates and assumptions used are reasonable. Cash and Cash Equivalents We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. Restricted Cash Restricted cash as of December 31, 2018 and 2017 consists of cash that contractually is not available for immediate use. Restricted cash is presented separately from cash and cash equivalents in our balance sheets. Revenue Recognition Revenue is recognized when control of the promised goods or services are transferred to our customers, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. See Note 3 for further discussion on revenue recognition. Concentrations of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk consist of cash and cash equivalents and accounts receivable. We believe that the credit risk in temporary cash investments is limited because our cash is held in accounts with multiple financial institutions. We record trade accounts receivable at the amount we invoice our customers, net of allowance for doubtful accounts. Trade accounts receivable are due from companies of varying sizes engaged principally in oil and natural gas activities throughout the world. We review the financial condition of customers prior to extending credit and generally do not obtain collateral for trade receivables. Payment terms are on a short-term basis and in accordance with industry practice. We consider this credit risk to be limited due to these companies’ financial resources, the nature of products and services we provide and the terms of our contract operations customer service agreements. We maintain allowances for doubtful accounts for estimated losses resulting from our customers’ inability to make required payments. The determination of the collectibility of amounts due from our customers requires us to use estimates and make judgments regarding future events and trends, including monitoring our customers’ payment history and current creditworthiness to determine that collectibility is reasonably assured, as well as consideration of the overall business climate in which our customers operate. Inherently, these uncertainties require us to make judgments and estimates regarding our customers’ ability to pay amounts due to us in order to determine the appropriate amount of valuation allowances required for doubtful accounts. We review the adequacy of our allowance for doubtful accounts quarterly. We determine the allowance needed based on historical write-off experience and by evaluating significant balances aged greater than 90 days individually for collectibility. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. During the years ended December 31, 2018 , 2017 and 2016 , we recorded bad debt expense of $0.1 million , $0.9 million and $3.0 million , respectively. Inventory Inventory consists of parts used for manufacturing or maintenance of natural gas compression equipment, production equipment, processing and treating equipment and facilities and parts held for sale. Inventory is stated at the lower of cost and net realizable value using the average cost method. A reserve is recorded against inventory balances for estimated obsolete and slow moving items based on specific identification, historical experience and management estimates of market conditions and production requirements. Property, Plant and Equipment Property, plant and equipment is recorded at cost and depreciated using the straight-line method over their estimated useful lives as follows: Compression equipment, processing facilities and other fleet assets 3 to 23 years Buildings 20 to 35 years Transportation, shop equipment and other 3 to 10 years Installation costs capitalized on contract operations projects are generally depreciated over the life of the underlying contract. Major improvements that extend the useful life of an asset are capitalized. Repairs and maintenance are expensed as incurred. When property, plant and equipment is sold, or otherwise disposed of, the gain or loss is recorded in other (income) expense, net. Interest is capitalized during the construction period on equipment and facilities that are constructed for use in our operations. The capitalized interest is included as part of the cost of the asset to which it relates and is amortized over the asset’s estimated useful life. Computer Software Certain costs related to the development or purchase of internal-use software are capitalized and amortized over the estimated useful life of the software, which ranges from three to five years . Costs related to the preliminary project stage and the post-implementation/operation stage of an internal-use computer software development project are expensed as incurred. Capitalized software costs are included in property, plant and equipment, net, in our balance sheets. Long-Lived Assets We review long-lived assets such as property, plant and equipment and identifiable intangibles subject to amortization for impairment whenever events or changes in circumstances, including the removal of compressor units from our active fleet, indicate that the carrying amount of an asset may not be recoverable. An impairment loss exists when estimated undiscounted cash flows expected to result from the use of the asset and its eventual disposition are less than its carrying amount. When necessary, the excess of the asset’s carrying value as compared to its estimated fair value is recognized as an impairment in the period in which the impairment occurred. Identifiable intangibles are amortized over the assets’ estimated useful lives. Demobilization The majority of our contract operations services contracts contain contractual requirements for us to perform demobilization activities at the end of the contract, with the scope of those activities varying by contract. Demobilization activities typically include, among other requirements, civil work and the removal of our equipment and installation from the customer’s site. Demobilization activities represent costs to fulfill obligations under our contracts and are not considered distinct within the context of our contract operations services contracts. Accrued demobilization costs are recorded, if applicable, at the time we become contractually obligated to perform these activities, which generally occurs upon our completion of the installation and commissioning of our equipment at the customer’s site. We record accrued demobilization costs as a liability and an equivalent demobilization asset as a capitalized fulfillment cost. Accrued demobilization costs are subsequently increased by interest accretion throughout the expected term of the contract. During the year ended December 31, 2018 , we recorded $2.6 million in accretion expense, which is reflected in depreciation and amortization expense in our statements of operations. Demobilization assets are amortized to cost of sales on a straight-line basis over the expected term of the contract. Any difference between the actual costs realized for the demobilization activities and the estimated liability established are recognized in cost of sales in our statement of operations. Other (Income) Expense, Net Other (income) expense, net, is primarily comprised of gains and losses from the remeasurement of our international subsidiaries’ net assets exposed to changes in foreign currency rates, short-term investments and the sale of used assets. Income Taxes Our operations are subject to U.S. federal, state and local and foreign income taxes. We and our subsidiaries file consolidated and separate income tax returns in the U.S. federal jurisdiction and in numerous state and foreign jurisdictions. We account for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statement carrying amounts and the tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. We record net deferred tax assets to the extent we believe these assets will more-likely-than-not be realized. In making such a determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies and results of recent operations. In the event we were to determine that we would be able to realize our deferred income tax assets in the future in excess of their net recorded amount, we would make an adjustment to the deferred tax asset valuation allowance, which would reduce the provision for income taxes. We record uncertain tax positions in accordance with the accounting standard on income taxes under a two-step process whereby (1) we determine whether it is more-likely-than-not that the tax positions will be sustained based on the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, we recognize the largest amount of tax benefit that is greater than 50 percent likely to be realized upon ultimate settlement with the related tax authority. Foreign Currency Translation The financial statements of our subsidiaries outside the U.S., except those for which we have determined that the U.S. dollar is the functional currency, are measured using the local currency as the functional currency. Assets and liabilities of these subsidiaries are translated at the exchange rates in effect at the balance sheet date. Income and expense items are translated at average monthly exchange rates. The resulting gains and losses from the translation of accounts into U.S. dollars are included in accumulated other comprehensive income in our balance sheets. For all subsidiaries, gains and losses from remeasuring foreign currency accounts into the functional currency are included in other (income) expense, net, in our statements of operations. We recorded foreign currency losses of $8.5 million and $0.7 million and foreign currency gains of $6.5 million during the years ended December 31, 2018 , 2017 and 2016 , respectively. Included in our foreign currency gains and losses were non-cash losses of $5.2 million and non-cash gains of $0.5 million and $9.3 million during the years ended December 31, 2018 , 2017 and 2016 , respectively, from foreign currency exchange rate changes recorded on intercompany obligations. During the second quarter of 2016, we entered into forward currency exchange contracts with a total notional value of $11.3 million that expired over varying dates through October 31, 2016. We entered into these foreign currency derivatives to offset exchange rate exposure related to intercompany loans to a subsidiary whose functional currency is the Brazilian Real. We did not designate these forward currency exchange contracts as hedge transactions. Changes in fair value and gains and losses on settlement on these forward currency exchange contracts were recognized in other (income) expense, net, in our statements of operations. During the year ended December 31, 2016, we recognized a loss of $0.7 million on forward currency exchange contracts. All of the forward currency exchange contracts that we entered into were settled prior to December 31, 2016. Recent Accounting Pronouncements We consider the applicability and impact of all Accounting Standard Updates (“ASUs”). ASUs not listed below were assessed and determined to be not applicable. Recently Adopted Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) . ASU 2014-09 (“Topic 606”) outlines a single comprehensive model for companies to use in accounting for revenue arising from contracts with customers and supersedes the most current revenue recognition guidance, including industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled for those goods or services. The update also requires disclosures enabling users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. On January 1, 2018, we adopted this update using the modified retrospective approach to all contracts that were not completed as of January 1, 2018. As a result of this adoption, we recorded a net increase to the accumulated deficit of $10.0 million as of January 1, 2018 and an increase of $3.7 million in revenue for the year ended December 31, 2018 . The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. See Note 3 for the required disclosures related to the impact of adopting this standard and a discussion of our updated policies related to revenue recognition. As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to the balance sheet as of January 1, 2018 (in thousands): Impact of Changes in Accounting Policies December 31, 2017 Adjustments January 1, 2018 ASSETS Current assets: Cash and cash equivalents $ 49,145 $ — $ 49,145 Restricted cash 546 — 546 Accounts receivable, net of allowance 266,052 (4,801 ) 261,251 Inventory, net 107,909 (124 ) 107,785 Costs and estimated earnings in excess of billings on uncompleted contracts 40,695 (40,695 ) — Contract assets — 50,824 50,824 Other current assets 38,707 (179 ) 38,528 Current assets held for sale 15,761 — 15,761 Current assets associated with discontinued operations 23,751 — 23,751 Total current assets 542,566 5,025 547,591 Property, plant and equipment, net 822,279 (2,029 ) 820,250 Deferred income taxes 10,550 404 10,954 Intangible and other assets, net 76,980 18,273 95,253 Long-term assets held for sale 4,732 — 4,732 Long-term assets associated with discontinued operations 3,700 — 3,700 Total assets $ 1,460,807 $ 21,673 $ 1,482,480 LIABILITIES AND STOCKHOLDERS ’ EQUITY Current liabilities: Accounts payable, trade $ 148,744 $ — $ 148,744 Accrued liabilities 114,336 16,044 130,380 Deferred revenue 23,902 (23,902 ) — Billings on uncompleted contracts in excess of costs and estimated earnings 89,565 (89,565 ) — Contract liabilities — 112,244 112,244 Current liabilities associated with discontinued operations 31,971 — 31,971 Total current liabilities 408,518 14,821 423,339 Long-term debt 368,472 — 368,472 Deferred income taxes 9,746 (1,908 ) 7,838 Long-term deferred revenue 92,485 (92,485 ) — Long-term contract liabilities — 89,004 89,004 Other long-term liabilities 20,272 22,262 42,534 Long-term liabilities associated with discontinued operations 6,528 — 6,528 Total liabilities 906,021 31,694 937,715 Stockholders’ equity: Preferred stock — — — Common stock 362 — 362 Additional paid-in capital 739,164 — 739,164 Accumulated deficit (223,510 ) (10,021 ) (233,531 ) Treasury stock (6,937 ) — (6,937 ) Accumulated other comprehensive income 45,707 — 45,707 Total stockholders’ equity 554,786 (10,021 ) 544,765 Total liabilities and stockholders’ equity $ 1,460,807 $ 21,673 $ 1,482,480 In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) . The update addresses eight specific cash flow issues and is intended to reduce diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. On January 1, 2018, we adopted this update. The adoption of this update did not have an impact on our statements of cash flows. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory . The update requires a reporting entity to recognize the tax expense from intra-entity asset transfers of assets other than inventory in the selling entity’s tax jurisdiction when the transfer occurs, even though the pre-tax effects of that transaction are eliminated in consolidation. Any deferred tax asset that arises in the buying entity’s jurisdiction would also be recognized at the time of the transfer. On January 1, 2018, we adopted this update using a modified retrospective approach. The impact of this adoption was immaterial to our financial statements. In November 2016, the FASB issued ASU 2016-18, Restricted Cash . The guidance requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents. On January 1, 2018, we adopted this update retrospectively. As a result of this adoption, $0.5 million and $0.7 million of restricted cash has been included in the cash and cash equivalent balances in the statements of cash flows for the years ended December 31, 2017 and 2016 , respectively. At December 31, 2016 , the $36.3 million of cash, cash equivalents and restricted cash on our statement of cash flow was composed of $35.7 million of cash and cash equivalent and $0.7 million of restricted cash. At December 31, 2017 , the $49.7 million of cash, cash equivalents and restricted cash on our statement of cash flows was composed of $49.1 million of cash and cash equivalents and $0.5 million of restricted cash. At December 31, 2018 , the $19.5 million of cash, cash equivalents and restricted cash on our statement of cash flows was composed of $19.3 million of cash and cash equivalents and $0.2 million of restricted cash. The impact of this adoption was immaterial to our financial statements. In May 2017, the FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718) . This update provides guidance that clarifies that changes to the terms or conditions of a share-based payment award should be accounted for as modifications. On January 1, 2018, we adopted this update using a prospective approach. The impact of this adoption was immaterial to our financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The update requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by long-term leases. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the statements of operations. The update also requires certain qualitative and quantitative disclosures about the amount, timing and uncertainty of cash flows arising from leases. Lessor accounting will be similar to the current model except for changes made to align with certain changes to the lessee model and the new revenue recognition standard. In July 2018, the FASB issued additional updates to provide clarification on the lease standard and to give entities another option for transition and to provide lessors with a practical expedient to reduce the cost and complexity of implementing the new standard. The new transition option allows entities to not apply the new leases standard in the comparative periods they present in their financial statements in the year of adoption. We intend to adopt the new lease guidance on January 1, 2019, using the transition method that allows us to initially apply Topic 842 as of January 1, 2019 and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Additionally, we expect to elect most of the standard’s available practical expedients upon adoption, including the package of practical expedients that allows us to not reassess expired or existing contracts for: (1) embedded leases, (2) lease classification and (3) initial direct costs. For existing contracts that do not require reassessment due to the practical expedient package we have elected, those contracts will continue to be recognized in our financial statements according to our accounting policies in place at December 31, 2018. New contracts entered into or any contract in existence at December 31, 2018 modified on or after January 1, 2019 will be assessed in accordance with Topic 842 and Topic 606, as applicable. In preparation for our adoption of the new standard, we are analyzing and updating data previously collected to evaluate the impact the adoption will have on our financial statements and implementing a system to capture the increased reporting and disclosure requirements. Currently, we tentatively estimate that, as a lessee, our assets and liabilities will increase by no more than $30 million upon adoption of the new lease guidance. Based upon the transition method and practical expedients we have elected, we do not believe the adoption of this standard will have a material effect on our statements of operations and cash flows. In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326) . The update changes the impairment model for most financial assets and certain other instruments, including trade and other receivables, held-to-maturity debt securities and loans, and requires entities to use a new forward-looking expected loss model that will result in the earlier recognition of allowance for losses. This update is effective for annual and interim periods beginning after December 15, 2019, with early adoption permitted. Adoption will require a modified retrospective approach beginning with the earliest period presented. We are currently evaluating the potential impact of the update on our financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. The update modifies the disclosure requirements on fair value measurements by removing, modifying and adding certain disclosure requirements. This update is effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted for any removed or modified disclosures upon issuance of the guidance and delayed adoption of the additional required disclosures is permitted until the effective date. Adoption will require a prospective or retrospective approach based on the specific amendments. We are currently evaluating the potential impact of the update on our financial statements.

Revenue

Revenue	12 Months Ended
	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue	Note 3. Revenue On January 1, 2018 , we adopted Topic 606 applying the modified retrospective method to all contracts that were not completed as of the date of adoption. For contracts that were modified before the effective date, we reflected the aggregate effect of all modifications when identifying performance obligations and allocating transaction price in accordance with a Topic 606 practical expedient. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts have not been adjusted and continue to be reported under the accounting standards in effect for the prior period. We recorded a net increase to accumulated deficit of $10.0 million as of January 1, 2018 due to the cumulative impact of adopting Topic 606. Revenues for the year ended December 31, 2018 increased by $3.7 million as a result of adopting Topic 606. Disaggregation of Revenue The following tables present disaggregated revenue by products and services lines and by geographical regions for the year ended December 31, 2018 (in thousands): Revenue by Products and Services Year Ended Contract Operations Segment: Contract operations services (1) $ 360,973 Aftermarket Services Segment: Operation and maintenance services (1) $ 57,123 Part sales (2) 43,928 Other services (1) 19,625 Total aftermarket services $ 120,676 Product Sales Segment: Compression equipment (1) $ 476,480 Processing and treating equipment (1) 368,137 Production equipment (2) 18,932 Other product sales (1) (2) 15,658 Total product sales revenues $ 879,207 Total revenues $ 1,360,856 (1) Revenue recognized over time. (2) Revenue recognized at a point in time. Revenue by Geographical Regions Year Ended North America $ 858,934 Latin America 274,414 Middle East and Africa 163,093 Asia Pacific 64,415 Total revenues $ 1,360,856 The North America region is primarily comprised of our operations in Mexico and the U.S. The Latin America region is primarily comprised of our operations in Argentina, Bolivia and Brazil. The Middle East and Africa region is primarily comprised of our operations in Bahrain, Iraq, Oman, Nigeria and the United Arab Emirates. The Asia Pacific region is primarily comprised of our operations in China, Indonesia, Thailand and Singapore. Revenue is recognized when control of the promised goods or services are transferred to our customers, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. The following is a description of principal activities from which we generate revenue. Contract Operations Segment In our contract operations segment, we provide compression and processing and treating services through the operation of our natural gas compression equipment and crude oil and natural gas production and process equipment for our customers. Our services include the provision of personnel, equipment, tools, materials and supplies to meet our customers’ natural gas compression and oil and natural gas production and processing service needs. Activities we may perform in meeting our customers’ needs include engineering, designing, sourcing, constructing, installing, operating, servicing, repairing, maintaining and demobilizing equipment owned by us necessary to provide these services. Contract operations services represent a series of distinct monthly services that are substantially the same, with the same pattern of transfer to the customer. Because our customers benefit equally throughout the service period and our efforts in providing contract operations services are incurred relatively evenly over the period of performance, revenue is recognized over time using a time based measure as we provide our services to the customer. Our contracts generally require customers to pay a monthly service fee, which may contain variable consideration such as production or volume based fees, guaranteed run rates, performance bonuses or penalties, liquidated damages and standby fees. Variable considerations included in our contracts are typically resolved on a monthly basis, and as such, variable considerations included in our contracts are generally allocated to each distinct month in the series within the contract. In addition, our contracts may include billings prior to or after the performance of our contract operations services that are not considered distinct within the context of our contracts, such as mobilization and demobilization revenue. Consideration that does not relate to a distinct good or service are allocated to the contract operations services performance obligation and recognized as revenue on a straight-line basis over the contract term. We generally enter into contracts with our contract operations customers with initial terms ranging between three to 12 years. In many instances, we are able to renew those contracts prior to the expiration of the initial term and in other instances, we may sell the underlying assets to our customers pursuant to purchase options or negotiated sale agreements. As of December 31, 2018 , we had contract operations services contracts with unsatisfied performance obligations (commonly referred to as backlog) extending through the year 2029. The total aggregate transaction price allocated to the unsatisfied performance obligations as of December 31, 2018 was approximately $1.4 billion , of which approximately $292 million is expected to be recognized in 2019, $197 million is expected to be recognized in 2020, $203 million is expected to be recognized in 2021, $165 million is expected to be recognized in 2022 and $148 million is expected to be recognized in 2023. These amounts do not include anticipated contract renewals. Additionally, contracts that currently contain month-to-month terms are represented in our backlog as one month of unsatisfied performance obligations. Our contracts are subject to cancellation or modification at the election of the customer; however, due to the level of capital deployed by our customers on underlying projects, we have not been materially adversely affected by contract cancellations or modifications in the past. At December 31, 2018 , three contracts, each of which were signed in 2018 and in aggregate represent approximately 10% of the total value of our backlog, are accounted for as operating leases. For these contracts, revenues are recognized on a straight line basis and represent approximately 18% of total backlog expected to be recognized in 2019 and thereafter represent no more than 14% for each subsequent periods. Revenues recognized during the year ended December 31, 2018 and assets assigned to these contracts at December 31, 2018 were not material to our statements of operation and balance sheets, respectively. Aftermarket Services Segment In our aftermarket services business, we sell parts and components and provide operations, maintenance, repair, overhaul, upgrade, startup and commissioning and reconfiguration services to customers who own their own oil and natural gas compression, production, processing, treating and related equipment. Our services range from routine maintenance services and parts sales done on a transactional basis to the full operation and maintenance of customer-owned equipment under long-term agreements. Operations and maintenance services: Operation and maintenance services include personnel to run the equipment and monitor the outputs of the equipment, along with performing preventative or scheduled maintenance on customer-owned equipment. Operation and maintenance services represent a series of distinct monthly services that are substantially the same, with the same pattern of transfer to the customer. Because our customers benefit equally throughout the service period and our efforts in providing operation and maintenance services are incurred relatively evenly over the period of performance, revenue is recognized over time using a time based measure as we provide our services to the customer. Our contracts generally require customers to pay a monthly service fee, which may contain variable consideration such as production or volume based fees and performance bonuses or penalties. Variable considerations included in our contracts are typically resolved on a monthly basis, and as such, variable considerations included in our contracts are generally allocated to each distinct month in the series within the contract. We generally enter into contracts with our operation and maintenance customers with initial terms ranging between one to four years, and in some cases, in excess of five years. In many instances, we are able to renew those contracts prior to the expiration of the initial term. Parts sales: We offer our customers a full range of parts needed for the maintenance, repair and overhaul of oil and natural gas equipment, including natural gas compressors, industrial engines and production and processing equipment. We recognize revenue from parts sales at a point in time following the transfer of control of such parts to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contract. Our contracts require customers to pay a fixed fee upon shipment or delivery of the parts. Other services: Within our aftermarket services segment we also provide a wide variety of other services such as overhaul, commissioning, upgrade and reconfiguration services on customer-owned equipment. Overhaul services provided to customers are intended to return the major components to a “like new” condition without significantly modifying the applications for which the units were designed. Commissioning services that we provide to our customers generally include supervision and the introduction of fluids or gases into the systems to test vibrations, pressures and temperatures to ensure that customer-owned equipment is operating properly and is ready for start-up. Upgrade and reconfiguration services modify the operating parameters of customer-owned equipment such that the equipment can be used in applications for which it previously was not suited. Generally, the wide array of other services provided within the aftermarket services segment are expected to be completed within a six month period. Individually these services are generally distinct within the context of the contract and are not highly interdependent or interrelated with other service offerings. We recognize revenue from these services over time based on the proportion of labor hours expended to the total labor hours expected to complete the contract performance obligation. Our contracts generally require customers to pay a service fee that is either fixed or on a time and materials basis, which may include progress billings. Our aftermarket services contracts are subject to cancellation or modification at the election of the customer. Product Sales Segment In our product sales segment, we design, engineer, manufacture, install and sell natural gas compression packages as well as equipment used in the treating and processing of crude oil and natural gas primarily to major and independent oil and natural gas producers as well as national oil and natural gas companies around the world. Compression equipment: We design, engineer, manufacture and sell skid-mounted natural gas compression equipment to meet standard or unique customer specifications. We recognize revenue from the sale of compression equipment over time based on the proportion of labor hours expended to the total labor hours expected to complete the contract performance obligation. Compression equipment manufactured for our customers are specifically designed and engineered to our customers’ specification and do not have an alternative use to us. Our contracts include a fixed fee and require our customers to make progress payments based on completion of contractual milestones during the life cycle of the manufacturing process. Our contracts provide us with an enforceable right to payment for work performed to date. Components of variable considerations exist in certain of our contracts and may include unpriced change orders, liquidated damages and performance bonuses or penalties. Typically, we expect the manufacturing of our compressor equipment to be completed within a three to 12 month period. Processing and treating equipment: Processing and treating equipment sold to our customers consists of custom-engineered processing and treating plants, such as refrigeration, amine, cryogenic and natural gas processing plants. The manufacturing of processing and treating equipment generally represents a single performance obligation within the context of the contract. We recognize revenue from the sale of processing and treating equipment over time based on the proportion of labor hours expended to the total labor hours expected to complete the contract performance obligation. Processing and treating equipment manufactured for our customers are specifically designed and engineered to our customers’ specification and do not have an alternative use to us. Our contracts include a fixed fee and require our customers to make progress payments based on our completion of contractual milestones during the life cycle of the manufacturing process. Our contracts provide us with an enforceable right to payment for work performed to date. Components of variable considerations exist in certain of our contracts and may include unpriced change orders, liquidated damages and performance bonuses or penalties. Typically, we expect the manufacturing of our processing and treating equipment to be completed within a six to 24 month period. Production equipment: In June 2018, we completed the sale of our North America production equipment assets (“PEQ assets”), which included $12.0 million in unsatisfied performance obligations. See Note 8 for further details on the sale of our PEQ assets. In North America, we previously manufactured standard production equipment used for processing wellhead production from onshore or shallow-water offshore platform production. The manufacturing of production equipment generally represented a single performance obligation within the context of the contract. We recognized revenue from the sale of production equipment at a point in time following the transfer of control of the equipment to the customer, which typically occurred upon completion of the manufactured equipment, depending on the terms of the underlying contract. Our contracts generally required customers to pay a fixed fee upon completion. Other product sales: Within our product sales segment we also provide for the sale of standard and custom water treatment equipment and floating production storage and offloading equipment and supervisor site work services. We recognize revenue from the sale of standard water treatment equipment at a point in time following the transfer of control of such equipment to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contract. We recognize revenue from the sale of custom water treatment equipment over time based on the proportion of costs expended to the total costs expected to complete the contract performance obligation. We recognize revenue from the sale of floating production storage and offloading equipment and supervisor site work services over time based on the proportion of labor costs expended to the total labor costs expected to complete the contract performance obligation. Product sales contracts that include engineering, design, project management, procurement, construction and installation services necessary to incorporate our products into production, processing and compression facilities are treated as a single performance obligation due to the services that significantly integrate each piece of equipment into the combined output contracted by the customer. We provide assurance-type warranties on certain equipment in our product sales contracts. These warranties generally do not constitute a separate performance obligation. Product warranty reserves are established in the same period that revenue from the sale of the related products is recognized, or in the period that a specific issue arises as to the functionality of a product. The determination of such reserves requires that we make estimates of expected costs to repair or to replace the products under warranty. The amounts of the reserves are based on established terms and our best estimate of the amounts necessary to settle future and existing claims on product sales as of the balance sheet date. If actual repair and replacement costs differ significantly from estimates, adjustments to recognize additional cost of sales may be required in future periods. As of December 31, 2018 , the total aggregate transaction price allocated to the unsatisfied performance obligations for product sales contracts was approximately $706 million , of which approximately $690 million is expected to be recognized in 2019 and approximately $16 million is expected to be recognized in 2020. Our contracts are subject to cancellation or modification at the election of the customer; however, due to our enforceable right to payment for work performed, we have not been materially adversely affected by contract cancellations or modifications in the past. Significant Estimates The recognition of revenue over time based on the proportion of labor hours expended to the total labor hours expected to complete depends largely on our ability to make reasonable dependable estimates related to the extent of progress toward completion of the contract, contract revenues and contract costs. Recognized revenues and profits are subject to revisions as the contract progresses to completion. Revisions in profit estimates are charged to income in the period in which the facts that give rise to the revision become known using the cumulative catch-up method. Due to the nature of some of our contracts, developing the estimates of costs often requires significant judgment. To calculate the proportion of labor hours expended to the total labor hours expected to complete the contract performance obligation, management uses significant judgment to estimate the number of total hours and profit expected for each project. Variable Consideration The nature of our contracts gives rise to several types of variable consideration. We estimate variable consideration at the most likely amount to which we expect to be entitled. We include estimated amounts in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Additionally, we include in our contract estimates additional revenue for unapproved change orders or claims against customers when we believe we have an enforceable right to the modification or claim, the amount can be estimated reliably and its realization is probable. Our estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based largely on an assessment of our anticipated performance and historical, current and forecasted information that is reasonably available to us. Contracts with Multiple Performance Obligations Some of our contracts have multiple performance obligations. For instance, some of our product sales contracts include commissioning services or the supply of spare parts. For contracts with multiple performance obligations, we allocate the contract’s transaction price to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract. The primary method used to estimate standalone selling price is the expected cost plus a margin approach, under which we forecast our expected costs of satisfying a performance obligation and then add an appropriate margin for that distinct good or service. Contract Assets and Contract Liabilities The following table provides information about accounts receivables, net, contract assets and contract liabilities from contracts with customers (in thousands): As of As of Accounts receivables, net $ 248,467 $ 261,251 Contract assets and contract liabilities: Current contract assets 91,602 50,824 Long-term contract assets 5,430 11,835 Current contract liabilities 153,483 112,244 Long-term contract liabilities 101,363 89,004 Accounts receivables are recorded when the right to consideration becomes unconditional. Our contract assets include amounts related to revenue that has been recognized in advance of billing the customer. The contract assets in our balance sheets include costs in excess of billings and unbilled receivables. When we receive consideration, or such consideration is unconditionally due from a customer prior to transferring goods or services to the customer under the terms of the contract, we record a contract liability. Our contract liabilities include payments received in advance of performance under the contract. The contract liabilities in our balance sheets include billings in excess of costs and deferred revenue. Billings in excess of costs primarily relate to billings that have not been recognized as revenue on product sales jobs where the transfer of control to the customer occurs over time. Deferred revenue is primarily comprised of upfront billings on contract operations jobs and billings related to product sales jobs that have not begun where revenue is recognized over time. Upfront payments received from customers on contract operations jobs are generally deferred and amortized over the contract term as we perform our services and the customer receives and consumes the benefits of the services we provide. Contract assets and liabilities are reported in our balance sheets on a net contract asset or liability position on a contract-by-contract basis at the end of each reporting period. During the year ended December 31, 2018 , revenue recognized from contract operations services included $20.3 million of revenue deferred in previous periods. Revenue recognized during the year ended December 31, 2018 from product sales performance obligations partially satisfied in previous periods was $423.5 million , of which $84.3 million was included in billings in excess of costs at the beginning of the period. Additionally, during the year ended December 31, 2018 , we recognized $4.3 million in revenue from contract operations services performance obligations that were satisfied in a previous period. The increase s in current contract assets and current contract liabilities during the year ended December 31, 2018 were primarily driven by progression of product sales projects and the timing of milestone billings. Costs to Fulfill a Contract We capitalize costs incurred to fulfill our revenue contracts that (i) relate directly to the contract (ii) are expected to generate resources that will be used to satisfy the performance obligation under the contract and (iii) are expected to be recovered through revenue generated under the contract. As of December 31, 2018 , we had capitalized fulfillment costs of $6.6 million related to contractual obligations incurred at the completion of the commissioning phase and prior to providing services on contracts within our contract operations segment. Contract fulfillment costs are expensed to cost of sales as we satisfy our performance obligations by transferring contract operations services to the customer. Capitalized fulfillment costs are included in intangible and other assets, net, in the balance sheets. Costs to Obtain a Contract We recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one year. We have determined that certain commissions paid to internal sales representatives and third party agents meet the requirements to be capitalized. The amount capitalized for incremental costs to obtain contracts as of December 31, 2018 was $6.7 million . The judgments made in determining the amount of costs incurred include whether the commissions are in fact incremental and would not have occurred absent the customer contract. Capitalized costs to obtain a contract are included in intangible and other assets, net, in the balance sheets and are amortized to selling, general and administrative expense over the expected period of benefit in a manner that is consistent with the transfer of the related goods or services to which the asset relates. During the year ended December 31, 2018 , we recorded amortization expense for capitalized costs to obtain a contract of $1.4 million . Practical Expedients and Exemptions We have elected the following practical expedients: • We do not adjust the promised amount of consideration for the effects of a significant financing component when we expect, at contract inception, that the period between our transfer of a promised product or service to a customer and when the customer pays for that product or service will be one year or less. • We treat shipping and handling activities that occur after the transfer of control as costs to fulfill a contract rather than a separate performance obligation. • We record taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction and collected by us from our customers on a net basis, and thus, such taxes are excluded from the measurement of a performance obligation’s transaction price. • We expense sales commissions as incurred when we expect that the amortization period of such costs will be one year or less. Impact of New Revenue Recognition Guidance on Financial Statement Line Items The following tables summarize the impacts of the adoption of the new revenue recognition guidance on our balance sheet, statement of operations and statement of cash flows as of and for the year ended December 31, 2018 (in thousands): December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 ASSETS Inventory, net $ 150,689 $ 1,303 $ 151,992 Contract assets 91,602 (20,114 ) 71,488 Other current assets 44,234 14,432 58,666 Property, plant and equipment, net 901,577 1,855 903,432 Deferred income taxes 11,370 (972 ) 10,398 Intangible and other assets, net 86,371 (17,448 ) 68,923 Total assets 1,567,054 (20,944 ) 1,546,110 LIABILITIES AND STOCKHOLDERS ’ EQUITY Accrued liabilities $ 123,335 $ (14,273 ) $ 109,062 Contract liabilities 153,483 2,347 155,830 Deferred income taxes 6,005 (32 ) 5,973 Long-term contract liabilities 101,363 3,512 104,875 Other long-term liabilities 39,812 (14,902 ) 24,910 Total liabilities 1,014,233 (23,348 ) 990,885 Accumulated deficit (208,677 ) 2,404 (206,273 ) Total stockholders’ equity 552,821 2,404 555,225 Total liabilities and stockholders’ equity 1,567,054 (20,944 ) 1,546,110 The adoption of the new revenue recognition guidance resulted in increase s in total assets and liabilities of $20.9 million and $23.3 million , respectively. This was primarily due to capitalized contract fulfillment and obtainment costs and related liabilities recorded associated with contracts within our contract operations segment. Year Ended December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 Revenues: Contract operations $ 360,973 $ (2,079 ) $ 358,894 Aftermarket services 120,676 (1,662 ) 119,014 Cost of sales (excluding depreciation and amortization expense): Contract operations 122,138 2,344 124,482 Aftermarket services 89,666 (1,278 ) 88,388 Selling, general and administrative 178,401 6,739 185,140 Depreciation and amortization 123,922 (2,468 ) 121,454 Income before income taxes 39,825 (9,078 ) 30,747 Provision for income taxes 39,433 (1,461 ) 37,972 Income (loss) from continuing operations 392 (7,617 ) (7,225 ) Net income 24,854 (7,617 ) 17,237 Basic net income per common share $ 0.68 $ (0.19 ) $ 0.49 Diluted net income per common share 0.68 (0.19 ) 0.49 The adoption of the new revenue recognition guidance resulted in an increase in net income of $7.6 million for the year ended December 31, 2018 . Most notably, costs to obtain a contract during the year ended December 31, 2018 would have resulted in an increase in selling, general and administrative expense under previous accounting standards. Year Ended December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 Cash flows from operating activities: Net income $ 24,854 $ (7,617 ) $ 17,237 Depreciation and amortization 123,922 (2,468 ) 121,454 Deferred income tax provision 1,537 (1,461 ) 76 Changes in assets and liabilities: Inventory (59,676 ) (1,179 ) (60,855 ) Contract assets (34,571 ) 2,477 (32,094 ) Other current assets 5,045 (951 ) 4,094 Accounts payable and other liabilities 13,801 9,894 23,695 Contract liabilities 62,934 1,414 64,348 Other 3,059 (109 ) 2,950 Net cash provided by continuing operations 153,296 — 153,296 The adoption of the new revenue recognition guidance resulted in offsetting shifts in cash flows within cash flows from operating activities and did not have an impact on our total cash flows from operations.

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Note 4. Discontinued Operations In June 2009, Petroleos de Venezuela S.A. (“PDVSA”) commenced taking possession of our assets and operations in a number of our locations in Venezuela, and by the end of the second quarter of 2009, PDVSA had assumed control over substantially all of our assets and operations in Venezuela. In March 2010, our Spanish subsidiary filed a request for the institution of an arbitration proceeding against Venezuela with the International Centre for Settlement of Investment Disputes (“ICSID”) related to the seized assets and investments under the agreement between Spain and Venezuela for the Reciprocal Promotion and Protection of Investments and under Venezuelan law. The arbitration hearing occurred in July 2012. In August 2012, our Venezuelan subsidiary sold its previously nationalized assets to PDVSA Gas, S.A. (“PDVSA Gas”) for a purchase price of approximately $441.7 million . We received an initial payment of $176.7 million in cash at closing, of which we remitted $50.0 million to repay the amount we collected in January 2010 under the terms of an insurance policy we maintained for the risk of expropriation. We received installment payments, including an annual charge, totaling $19.8 million , $19.7 million and $38.8 million during the years ended December 31, 2018 , 2017 and 2016 , respectively. As of December 31, 2018 , we have received all payments from PDVSA Gas. We recognized payments received as income from discontinued operations in the periods such payments were received. The proceeds from the sale of the assets were not subject to Venezuelan national taxes due to an exemption allowed under the Venezuelan Reserve Law applicable to expropriation settlements. In accordance with the separation and distribution agreement from the Spin-off, a subsidiary of Archrock has the right to receive payments from our wholly owned subsidiary, Exterran Energy Solutions, L.P. (“EESLP”), based on a notional amount corresponding to payments received by our subsidiaries from PDVSA Gas in respect of the sale of our previously nationalized assets promptly after such amounts are collected by our subsidiaries. Pursuant to the separation and distribution agreement, we transferred cash of $18.7 million , $19.7 million and $38.8 million to Archrock during the years ended December 31, 2018 , 2017 and 2016 , respectively. The transfers of cash were recognized as reductions to additional paid-in capital in our financial statements. In the first quarter of 2016, we began executing a plan to exit certain Belleli businesses to focus on our core businesses. Specifically, we began marketing for sale the Belleli CPE business comprised of engineering, procurement and manufacturing services related to the manufacture of critical process equipment for refinery and petrochemical facilities (referred to as “Belleli CPE” or the “Belleli CPE business” herein). Belleli CPE met the held for sale criteria and is reflected as discontinued operations in our financial statements for all periods presented. In August 2016, we completed the sale of our Belleli CPE business to Tosto S.r.l. for cash proceeds of $5.5 million . Belleli CPE was previously included in our product sales segment. In conjunction with the planned disposition of Belleli CPE, we recorded impairments of long-lived assets and current assets that totaled $68.8 million during the year ended December 31, 2016 . The impairment charges are reflected in income (loss) from discontinued operations, net of tax. In addition, in the first quarter of 2016, we began executing the exit of our Belleli EPC business that has historically been comprised of engineering, procurement and construction for the manufacture of tanks for tank farms and the manufacture of evaporators and brine heaters for desalination plants in the Middle East (referred to as “Belleli EPC” or the “Belleli EPC business” herein) by ceasing the bookings of new orders. As of the fourth quarter of 2017, we had substantially exited our Belleli EPC business and, in accordance with GAAP, it is reflected as discontinued operations in our financial statements for all periods presented. Although we have reached mechanical completion on all remaining Belleli EPC contracts, we are still subject to risks and uncertainties potentially resulting from warranty obligations, customer or suppliers claims against us, settlement of claims against customers, completion of demobilization activities and litigation developments. The facility previously utilized to manufacture products for our Belleli EPC business has been repurposed to manufacture product sales equipment. As such, certain personnel, buildings, equipment and other assets that were previously related to our Belleli EPC business remain a part of our continuing operations. As a result, activities associated with our ongoing operations at our repurposed facility are included in continuing operations. The following table summarizes the operating results of discontinued operations (in thousands): Years Ended December 31, 2018 2017 2016 Venezuela Belleli EPC Total Venezuela Belleli EPC Total Venezuela Belleli EPC Belleli CPE Total Revenue $ — $ 16,274 $ 16,274 $ — $ 72,693 $ 72,693 $ — $ 123,856 $ 28,469 $ 152,325 Cost of sales (excluding depreciation and amortization expense) — 10,271 10,271 — 41,329 41,329 — 126,322 27,323 153,645 Selling, general and administrative 131 1,652 1,783 131 5,262 5,393 54 8,500 1,494 10,048 Depreciation and amortization — 480 480 — 5,653 5,653 — 5,088 861 5,949 Long-lived asset impairment — — — — — — — 651 68,780 69,431 Recovery attributable to expropriation (16,564 ) — (16,564 ) (16,514 ) — (16,514 ) (33,124 ) — — (33,124 ) Restructuring related charges (recoveries), net — — — — (439 ) (439 ) — 5,419 2,735 8,154 Interest expense — — — — — — — — 17 17 Other (income) expense, net (3,249 ) (1,342 ) (4,591 ) (3,157 ) 539 (2,618 ) (5,966 ) (42 ) (191 ) (6,199 ) Provision for income taxes — 433 433 — 153 153 — 518 57 575 Income (loss) from discontinued operations, net of tax $ 19,682 $ 4,780 $ 24,462 $ 19,540 $ 20,196 $ 39,736 $ 39,036 $ (22,600 ) $ (72,607 ) $ (56,171 ) The following table summarizes the balance sheet data for discontinued operations (in thousands): December 31, 2018 December 31, 2017 Venezuela Belleli EPC Total Venezuela Belleli EPC Total Cash $ 3 $ — $ 3 $ 3 $ — $ 3 Accounts receivable — 11,509 11,509 — 14,770 14,770 Costs and estimated earnings in excess of billings on uncompleted contracts — — — — 7,786 7,786 Other current assets 7 86 93 2 1,190 1,192 Total current assets associated with discontinued operations 10 11,595 11,605 5 23,746 23,751 Property, plant and equipment, net — 28 28 — 1,054 1,054 Intangible and other assets, net — 1,633 1,633 — 2,646 2,646 Total assets associated with discontinued operations $ 10 $ 13,256 $ 13,266 $ 5 $ 27,446 $ 27,451 Accounts payable $ — $ 4,382 $ 4,382 $ — $ 9,253 $ 9,253 Accrued liabilities 12 7,831 7,843 59 15,617 15,676 Billings on uncompleted contracts in excess of costs and estimated earnings — 2,542 2,542 — 7,042 7,042 Total current liabilities associated with discontinued operations 12 14,755 14,767 59 31,912 31,971 Other long-term liabilities — 5,914 5,914 1 6,527 6,528 Total liabilities associated with discontinued operations $ 12 $ 20,669 $ 20,681 $ 60 $ 38,439 $ 38,499

Inventory, Net

Inventory, Net	12 Months Ended
	Dec. 31, 2018
Inventory Disclosure [Abstract]
Inventory, Net	Note 5. Inventory, Net Inventory, net of reserves, consisted of the following amounts (in thousands): December 31, 2018 2017 Parts and supplies $ 92,016 $ 79,803 Work in progress 49,547 21,853 Finished goods 9,126 6,253 Inventory, net $ 150,689 $ 107,909 During the years ended December 31, 2018 , 2017 and 2016 , we recorded $0.1 million , $1.3 million and $0.8 million , respectively, in inventory write-downs and reserves for obsolete or slow moving inventory. As of December 31, 2018 and 2017 , we had inventory reserves of $10.0 million and $10.4 million , respectively.

Property, Plant and Equipment,

Property, Plant and Equipment, Net	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net	Note 6. Property, Plant and Equipment, Net Property, plant and equipment, net, consisted of the following (in thousands): December 31, 2018 2017 Compression equipment, processing facilities and other fleet assets (1) $ 1,713,153 $ 1,577,052 Land and buildings 101,571 96,463 Transportation and shop equipment 82,960 82,240 Computer software 54,572 50,299 Other 47,210 40,096 1,999,466 1,846,150 Accumulated depreciation (1,097,889 ) (1,023,871 ) Property, plant and equipment, net $ 901,577 $ 822,279 (1) In the fourth quarter of 2017, we evaluated the estimated useful lives and salvage values of our property, plant and equipment. As a result of this evaluation, we changed the useful lives and salvage values for our compression equipment from a maximum useful life of 30 years to 23 years and a maximum salvage value of 20% to 15% based on expected future use. During the years ended December 31, 2018 and 2017, we recorded increases in depreciation expense of $8.9 million and $1.2 million , respectively, as a result of these changes in useful lives and salvage values which impacted our diluted net income per share by $0.25 and $0.03 , respectively. Depreciation expense was $118.9 million , $105.0 million and $129.2 million during the years ended December 31, 2018 , 2017 and 2016 , respectively. Assets under construction of $237.7 million and $130.4 million as of December 31, 2018 and 2017 , respectively, were primarily related to our contract operations business. During the years ended December 31, 2018 , 2017 and 2016 , we capitalized $9.9 million , $3.4 million and $0.3 million of interest related to construction in process, respectively.

Intangible and Other Assets, Ne

Intangible and Other Assets, Net	12 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible and Other Assets, Net	Note 7. Intangible and Other Assets, Net Intangible and other assets, net, consisted of the following (in thousands): December 31, 2018 2017 Intangible assets, net $ 8,174 $ 9,861 Deferred financing costs 7,237 4,786 Long-term non-income tax receivable 8,621 14,560 Long-term income tax credits 2,412 11,344 Long-term notes receivable 20,399 3,004 Long-term deposits 13,492 11,648 Long-term contract assets 5,430 8,500 Contract fulfillment costs 6,580 — Contract obtainment costs 6,739 — Other 7,287 13,277 Intangibles and other assets, net $ 86,371 $ 76,980 Intangible assets and deferred financing costs consisted of the following (in thousands): December 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Deferred financing costs (1) $ 13,164 $ (5,927 ) $ 8,368 $ (3,582 ) Marketing related (20 year life) 542 (542 ) 629 (589 ) Customer related (17-20 year life) 75,331 (68,423 ) 76,946 (67,342 ) Technology based (20 year life) 3,153 (3,153 ) 3,655 (3,438 ) Contract based (2-11 year life) 45,059 (43,793 ) 43,953 (43,953 ) Intangible assets and deferred financing costs $ 137,249 $ (121,838 ) $ 133,551 $ (118,904 ) (1) Represents debt issuance costs relating to our revolving credit facility. See Note 11 for further discussion regarding our revolving credit facility. Amortization of deferred financing costs related to our revolving credit facility totaled $2.3 million , $1.7 million and $1.6 million during the years ended December 31, 2018 , 2017 and 2016 , respectively, and was recorded to interest expense in our statements of operations. Amortization of intangible assets totaled $2.4 million , $2.8 million and $3.7 million during the years ended December 31, 2018 , 2017 and 2016 , respectively. Estimated future intangible amortization expense is as follows (in thousands): 2019 $ 2,160 2020 1,852 2021 1,494 2022 1,074 2023 899 Thereafter 695 Total $ 8,174

Sale of PEQ Assets

Sale of PEQ Assets	12 Months Ended
	Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Sale of PEQ Assets	Note 8. Sale of PEQ Assets In the fourth quarter of 2017, we classified certain PEQ assets primarily related to inventory and property, plant and equipment, net, within our product sales business as assets held for sale in our balance sheets. In April 2018, we entered into a definitive agreement for the sale of these assets to Titan Production Equipment Acquisition, LLC, an affiliate of Castle Harlan, Inc. During the years ended December 31, 2018 and 2017 , we recorded impairments of $1.8 million and $2.1 million , respectively, to reduce these assets to their approximate fair values based on the expected net proceeds. The impairment charges are reflected in long-lived asset impairment in our statements of operations. In June 2018, we completed the sale of our PEQ assets. The sale of our PEQ assets resulted in a loss of $1.7 million during the year ended December 31, 2018 , which is reflected in other (income), expense, net, in our statements of operations.

Investments in Non-Consolidated

Investments in Non-Consolidated Affiliates	12 Months Ended
	Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]
Investments in Non-Consolidated Affiliates	Note 9. Investments in Non-Consolidated Affiliates Investments in affiliates that are not controlled by us where we have the ability to exercise significant influence over the operations are accounted for using the equity method. We own a 30.0% interest in WilPro Energy Services (PIGAP II) Limited and 33.3% interest in WilPro Energy Services (El Furrial) Limited, which are joint ventures that provided natural gas compression and injection services in Venezuela. In May 2009, PDVSA assumed control over the assets of our Venezuelan joint ventures and transitioned the operations, including the hiring of their employees, to PDVSA. In March 2011, our Venezuelan joint ventures, together with the Netherlands’ parent company of our joint venture partners, filed a request for the institution of an arbitration proceeding against Venezuela with ICSID related to the seized assets and investments. In March 2012, our Venezuelan joint ventures sold their assets to PDVSA Gas. We received an initial payment of $37.6 million in March 2012, and received installment payments, including an annual charge, totaling $10.4 million during the year ended December 31, 2016 . As of December 31, 2018 , the remaining principal amount due to us was approximately $4 million . We have not recognized amounts payable to us by PDVSA Gas as a receivable and will therefore recognize payments received in the future as equity in income of non-consolidated affiliates in our statements of operations in the periods such payments are received. In connection with the sale of our Venezuelan joint ventures’ assets, the joint ventures and our joint venture partners agreed to suspend their previously filed arbitration proceeding against Venezuela pending payment in full by PDVSA Gas of the purchase price for the assets. The arbitration proceeding has since been dismissed, and the principal amount due to us remains outstanding. In accordance with the separation and distribution agreement, a subsidiary of Archrock has the right to receive payments from EESLP based on a notional amount corresponding to payments received by our subsidiaries from PDVSA Gas in respect of the sale of our joint ventures’ previously nationalized assets promptly after such amounts are collected by our subsidiaries. Pursuant to the separation and distribution agreement, we transferred cash of $10.4 million to Archrock during the year ended December 31, 2016 . The transfer of cash was recognized as a reduction to additional paid-in capital in our financial statements. See Note 21 for further discussion related to our contingent liability to Archrock.

Accrued Liabilities

Accrued Liabilities	12 Months Ended
	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued Liabilities	Note 10. Accrued Liabilities Accrued liabilities consisted of the following (in thousands): December 31, 2018 2017 Accrued salaries and other benefits $ 46,836 $ 53,492 Accrued income and other taxes 31,862 26,503 Accrued demobilization costs 14,839 — Accrued warranty expense 2,191 3,190 Accrued interest 5,778 6,000 Accrued other liabilities 21,829 25,151 Accrued liabilities $ 123,335 $ 114,336 Our warranty expense was $1.9 million , $1.9 million and $1.6 million during the years ended December 31, 2018 , 2017 and 2016 , respectively.

Debt

Debt	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Debt	Note 11. Debt Debt consisted of the following (in thousands): December 31, 2018 2017 Revolving credit facility due October 2023 $ 35,000 $ — 8.125% senior notes due May 2025 375,000 375,000 Other debt 687 1,171 Unamortized deferred financing costs of 8.125% senior notes (6,428 ) (7,250 ) Total debt 404,259 368,921 Less: Amounts due within one year (1) (449 ) (449 ) Long- term debt $ 403,810 $ 368,472 (1) Short-term debt and the current portion of long-term debt are included in accrued liabilities in our balance sheets. Revolving Credit Facility On July 10, 2015, we and our wholly owned subsidiary, EESLP, entered into a $750.0 million credit agreement (the “Credit Agreement”) with Wells Fargo, as the administrative agent, and various financial institutions as lenders. On October 5, 2015, the parties amended and restated the Credit Agreement to provide for a $925.0 million credit facility, consisting of a $680.0 million revolving credit facility and a $245.0 million term loan facility. In November 2016, we repaid $12.3 million of borrowings outstanding under the term loan facility. In April 2017, we paid the remaining principal amount of $232.8 million due under the term loan facility with proceeds from the 2017 Notes (as defined below) issuance. As a result of the repayment of the term loan facility, we expensed $1.7 million of unamortized deferred financing costs during the year ended December 31, 2017, which is reflected in interest expense in our statements of operations. On October 9, 2018, we and EESLP entered into a Second Amended and Restated Credit Agreement (the “Amended Credit Agreement”), which among other things, increased the borrowing capacity under our revolving credit facility from $680.0 million to $700.0 million . The Amended Credit Agreement also extended the maturity date of our revolving credit facility to October 9, 2023. As a result of the Amended Credit Agreement, we expensed $0.7 million of unamortized deferred financing costs during the year ended December 31, 2018 , which is reflected in interest expense in our statements of operations. As of December 31, 2018 , we had $35.0 million in outstanding borrowings and $56.7 million in outstanding letters of credit under our revolving credit facility. At December 31, 2018 , taking into account guarantees through outstanding letters of credit, we had undrawn capacity of $608.3 million under our revolving credit facility. Our Amended Credit Agreement limits our senior secured leverage ratio (as defined in the Amended Credit Agreement) on the last day of the fiscal quarter to no greater than 2.75 to 1.0 . As a result of this limitation, $578.4 million of the $608.3 million of undrawn capacity under our revolving credit facility was available for additional borrowings as of December 31, 2018 . Revolving borrowings under the Amended Credit Agreement bear interest at a rate equal to, at our option, either the Base Rate or LIBOR (or EURIBOR, in the case of Euro-denominated borrowings) plus the applicable margin. “Base Rate” means the greatest of (a) the prime rate, (b) the federal funds effective rate plus 0.50% and (c) one-month LIBOR plus 1.00% . The applicable margin for revolving borrowings varies (i) in the case of LIBOR and EURIBOR loans, from 1.75% to 2.75% and (ii) in the case of Base Rate loans, from 0.75% to 1.75% , and in each case will be determined based on a total leverage ratio pricing grid. The weighted average annual interest rate on outstanding borrowings under the revolving credit facility at December 31, 2018 was 4.3% . We guarantee EESLP’s obligations under the revolving credit facility. In addition, EESLP’s obligations under the revolving credit facility are secured by (1) substantially all of our assets and the assets of EESLP and our Significant Domestic Subsidiaries (as defined in the Amended Credit Agreement), including certain real property, and (2) all of the equity interests of our U.S. restricted subsidiaries (other than certain excluded subsidiaries) (as defined in the Amended Credit Agreement) and 65% of the voting equity interests in certain of our first-tier foreign subsidiaries. 8.125% Senior Notes Due May 2025 In April 2017, our 100% owned subsidiaries EESLP and EES Finance Corp. issued $375.0 million aggregate principal amount of 8.125% senior unsecured notes due 2025 (the “2017 Notes”). The 2017 Notes are guaranteed by us on a senior unsecured basis. The net proceeds of $367.1 million from the 2017 Notes issuance were used to repay all of the borrowings outstanding under the term loan facility and revolving credit facility and for general corporate purposes. Additionally, pursuant to the separation and distribution agreement from the Spin-off, EESLP used proceeds from the issuance of the 2017 Notes to pay a subsidiary of Archrock $25.0 million in satisfaction of EESLP’s obligation to pay that sum following the occurrence of a qualified capital raise. The transfer of cash to Archrock’s subsidiary was recognized as a reduction to additional paid-in capital in the second quarter of 2017. Prior to May 1, 2020, we may redeem all or a portion of the 2017 Notes at a redemption price equal to the sum of (i) the principal amount thereof, and (ii) a make-whole premium at the redemption date, plus accrued and unpaid interest, if any, to the redemption date. In addition, we may redeem up to 35% of the aggregate principal amount of the 2017 Notes prior to May 1, 2020 with the net proceeds of one or more equity offerings at a redemption price of 108.125% of the principal amount of the 2017 Notes, plus any accrued and unpaid interest to the date of redemption, if at least 65% of the aggregate principal amount of the 2017 Notes issued under the indenture remains outstanding after such redemption and the redemption occurs within 180 days of the date of the closing of such equity offering. On or after May 1, 2020, we may redeem all or a portion of the 2017 Notes at redemption prices (expressed as percentages of principal amount) equal to 106.094% for the twelve-month period beginning on May 1, 2020, 104.063% for the twelve-month period beginning on May 1, 2021, 102.031% for the twelve-month period beginning on May 1, 2022 and 100.000% for the twelve-month period beginning on May 1, 2023 and at any time thereafter, plus accrued and unpaid interest, if any, to the applicable redemption date of the 2017 Notes. Unamortized Debt Financing Costs In connection with the issuance of the 2017 Notes, we incurred transaction costs of $7.9 million related to the issuance of the 2017 Notes. These costs are presented as a direct deduction from the carrying value of the 2017 Notes and are being amortized over the term of the 2017 Notes. Amortization of deferred financing costs relating to the 2017 Notes totaled $1.0 million and $0.7 million during the years ended December 31, 2018 and 2017, respectively, and was recorded to interest expense in our statements of operations. Amortization of deferred financing costs relating to the term loan facility totaled $2.4 million and $2.9 million during the years ended December 31, 2017 and 2016 , respectively, and was recorded to interest expense in our statements of operations. During the year ended December 31, 2018 , we incurred transaction costs of approximately $4.8 million related to our revolving credit facility. Debt issuance costs relating to our revolving credit facility are included in intangible and other assets, net, and are being amortized over the term of the facility. See Note 7 for further discussion regarding the amortization of deferred financing costs related to our revolving credit facility. Debt Compliance The Amended Credit Agreement contains various covenants with which we, EESLP and our respective restricted subsidiaries must comply including, but not limited to, limitations on the incurrence of indebtedness, investments, liens on assets, repurchasing equity, distributions, transactions with affiliates, mergers, consolidations, dispositions of assets and other provisions customary in similar types of agreements. We are required to maintain, on a consolidated basis, a minimum interest coverage ratio (as defined in the Amended Credit Agreement) of 2.25 to 1.00 ; a maximum total leverage ratio (as defined in the Amended Credit Agreement) of 4.50 to 1.00 ; and a maximum senior secured leverage ratio (as defined in the Amended Credit Agreement) of 2.75 to 1.00 . As of December 31, 2018 , we were in compliance with all financial covenants under the Amended Credit Agreement. Debt Maturity Schedule Contractual maturities of debt (excluding interest to be accrued thereon) at December 31, 2018 are as follows (in thousands): December 31, 2019 $ 449 2020 238 2021 — 2022 — 2023 35,000 Thereafter 375,000 Total debt (1) $ 410,687 (1) This amount includes the full face value of the 2017 Notes and does not include unamortized debt financing costs of $6.4 million as of December 31, 2018 .

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 12. Fair Value Measurements The accounting standard for fair value measurements and disclosures establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into the following three categories: • Level 1 — Quoted unadjusted prices for identical instruments in active markets to which we have access at the date of measurement. • Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. Level 2 inputs are those in markets for which there are few transactions, the prices are not current, little public information exists or prices vary substantially over time or among brokered market makers. • Level 3 — Model derived valuations in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are those inputs that reflect our own assumptions regarding how market participants would price the asset or liability based on the best available information. Nonrecurring Fair Value Measurements The following table presents our assets and liabilities measured at fair value on a nonrecurring basis during the years ended December 31, 2018 and 2017 , with pricing levels as of the date of valuation (in thousands): Year Ended Year Ended (Level 1) (Level 2) (Level 3) (Level 1) (Level 2) (Level 3) Impaired long-lived assets (1) $ — $ — $ 550 $ — $ — $ 403 Impaired assets—assets held for sale (2) — — 21,026 — — 20,493 Long-term note receivable (3) — — 14,573 — — — (1) Our estimate of the fair value of the impaired long-lived assets during the years ended December 31, 2018 and 2017 was primarily based on the expected net sale proceeds compared to other fleet units we sold and/or a review of other units offered for sale by third parties. (2) Our estimate of the fair value of the impaired PEQ assets, which were classified as assets held for sale as of December 31, 2017 and sold in June 2018, was based on the expected and actual net proceeds from the sale of the assets. (3) Our estimate of the fair value of a note receivable was discounted based on a settlement period of eight years and a discount rate of 5.2% . Financial Instruments Our financial instruments consist of cash, restricted cash, receivables, payables and debt. At December 31, 2018 and 2017 , the estimated fair values of cash, restricted cash, receivables and payables approximated their carrying amounts as reflected in our balance sheets due to the short-term nature of these financial instruments. The fair value of the 2017 Notes was estimated based on model derived calculations using market yields observed in active markets, which are Level 2 inputs. As of December 31, 2018 and 2017 , the carrying amount of the 2017 Notes, excluding unamortized deferred financing costs, of $375.0 million was estimated to have a fair value of $362.0 million and $404.0 million , respectively. Due to the variable rate nature of our revolving credit facility, the carrying value as of December 31, 2018 approximated the fair value as the rate was comparable to the then-current market rate at which debt with similar terms could have been obtained.

Long-Lived Asset Impairment

Long-Lived Asset Impairment	12 Months Ended
	Dec. 31, 2018
Asset Impairment Charges [Abstract]
Long-Lived Asset Impairment	Note 13. Long-Lived Asset Impairment We review long-lived assets, including property, plant and equipment and identifiable intangibles that are being amortized, for impairment whenever events or changes in circumstances, including the removal of compressor units from our active fleet, indicate that the carrying amount of an asset may not be recoverable. We regularly review the future deployment of our idle compression assets used in our contract operations segment for units that are not the type, configuration, condition, make or model that are cost efficient to maintain and operate. During the year ended December 31, 2018 , we evaluated for impairment idle units that had been previously culled from our fleet and are available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain units. This resulted in an additional impairment of $2.1 million to reduce the book value of each unit to its estimated fair value during the year ended December 31, 2018 . During the years ended December 31, 2017 and 2016 , we determined that one idle compressor unit and 62 idle compressor units, respectively, would be retired from the active fleet. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result, we recorded asset impairments of $ 0.6 million and $12.7 million during the years ended December 31, 2017 and 2016 , respectively, to reduce the book value of each unit to its estimated fair value. The fair value of each unit was estimated based on either the expected net sale proceeds compared to other fleet units we sold and/or a review of other units offered for sale by third parties during that time or the estimated component value of the equipment on each compressor unit that we planned to use at that time. In the fourth quarter of 2017, we classified our PEQ assets primarily related to inventory and property, plant and equipment, net, within our product sales business as assets held for sale in our balance sheets. As described in Note 8 , in June 2018, we completed the sale of our PEQ assets. During the years ended December 31, 2018 and 2017 , we recorded impairments of $1.8 million and $2.1 million , respectively, to reduce these assets to their approximate fair values based on the expected net proceeds. Additionally, in the fourth quarter of 2017, we determined that certain other assets within our product sales business were assessed to have no future benefit to our ongoing operations. In conjunction with the assessment of these other assets, we recorded an impairment charge of $3.0 million to write-down these assets. During the year ended December 31, 2016, we evaluated other assets for impairment and recorded long-lived asset impairments of $1.7 million on these assets.

Restatement Related Charges (Re

Restatement Related Charges (Recoveries), Net	12 Months Ended
	Dec. 31, 2018
Restatement Charges [Abstract]
Restatement Related Charges (Recoveries), Net	Note 14. Restatement Related Charges (Recoveries), Net During the first quarter of 2016, our senior management identified errors relating to the application of percentage-of-completion accounting principles to specific Belleli EPC product sales projects. As a result, the Audit Committee of the Company’s Board of Directors initiated an internal investigation, including the use of services of a forensic accounting firm. Management also engaged a consulting firm to assist in accounting analysis and compilation of restatement adjustments. We incurred restatement related charges of $0.9 million , $6.2 million and $30.1 million during the years ended December 31, 2018 , 2017 and 2016 , respectively. The costs incurred were external costs associated with an SEC investigation and remediation activities related to the restatement of our financial statements. We recorded recoveries from Archrock pursuant to the separation and distribution agreement for previously incurred restatement related costs of $1.2 million , $2.8 million and $11.2 million , during the years ended December 31, 2018 , 2017 and 2016 , respectively. We may incur additional cash expenditures related to external legal counsel costs associated with an ongoing SEC investigation surrounding the restatement of our financial statements, of which a portion may be recoverable from Archrock. The following table summarizes the changes to our accrued liability balance related to restatement charges, net, for the years ended December 31, 2017 and 2018 (in thousands): Restatement Related Charges Beginning balance at January 1, 2017 $ 2,212 Additions for costs expensed, net 3,419 Reductions for payments, net (5,052 ) Ending balance at December 31, 2017 579 Reductions for recoveries, net (276 ) Reductions for payments, net (256 ) Ending balance at December 31, 2018 $ 47 The following table summarizes the components of charges included in restatement related charges (recoveries), net, in our statements of operations for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Years Ended December 31, 2018 2017 2016 External accounting costs $ — $ 1,071 $ 21,073 External legal costs 531 4,396 7,565 Other 413 753 1,448 Recoveries from Archrock (1,220 ) (2,801 ) (11,207 ) Total restatement related charges (recoveries), net $ (276 ) $ 3,419 $ 18,879

Restructuring and Other Charges

Restructuring and Other Charges	12 Months Ended
	Dec. 31, 2018
Restructuring and Related Activities [Abstract]
Restructuring and Other Charges	Note 15. Restructuring and Other Charges In the second quarter of 2018, we initiated a relocation plan in the North America region to better align our contract operations business with our customers. As a result of this plan, during the year ended December 31, 2018 , we incurred restructuring and other charges of $2.0 million . As of December 31, 2018 , the accrued liability balance related to this plan was $0.3 million . The charges incurred in conjunction with this relocation plan are included in restructuring and other charges in our statements of operations. We currently estimate that we will incur additional charges with respect to this relocation plan of approximately $0.3 million . We expect the majority of the estimated additional charges will result in cash expenditures. In connection with the Spin-off, we incurred restructuring and other charges of $0.6 million and $3.9 million during the years ended December 31, 2017 and 2016 , respectively, primarily related to retention awards to certain employees of $0.6 million and $3.1 million , respectively, which were amortized over the required service period of each applicable employee. Additionally, we announced a cost reduction plan primarily focused on workforce reductions and the reorganization of certain facilities in the second quarter of 2015. We incurred restructuring and other charges associated with the cost reduction plan of $2.6 million and $18.1 million during the years ended December 31, 2017 and 2016 , respectively. Cost incurred for employee termination benefits during the year ended December 31, 2017 were $2.1 million . Restructuring and other charges incurred during the year ended December 31, 2016 were primarily related to employee termination benefits and the exit from a leased corporate building. Costs incurred for employee termination benefits during the year ended December 31, 2016 were $14.5 million , of which $9.0 million related to our product sales segment. We ceased the use of a corporate building under an operating lease in the second quarter of 2016, and as a result, recorded net charges of $2.9 million during the year ended December 31, 2016 . The charges incurred in conjunction with the Spin-off and cost reduction plan are reflected as restructuring and other charges in our statements of operations. In 2017, we completed restructuring activities related to the Spin-off and cost reduction plan. The following table summarizes the changes to our accrued liability balance related to restructuring and other charges for the years ended December 31, 2017 and 2018 (in thousands): Spin-off Cost Reduction Plan Relocation Plan Total Beginning balance at January 1, 2017 $ 934 $ 2,461 $ — $ 3,395 Additions for costs expensed 599 2,590 — 3,189 Less non-cash income (expense) (223 ) 740 — 517 Reductions for payments (1,310 ) (5,179 ) — (6,489 ) Ending balance at December 31, 2017 — 612 — 612 Additions for costs expensed — — 1,997 1,997 Reductions for payments — (612 ) (1,688 ) (2,300 ) Ending balance at December 31, 2018 $ — $ — $ 309 $ 309 The following table summarizes the components of charges included in restructuring and other charges in our statements of operations for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Years Ended December 31, 2018 2017 2016 Consulting fees $ — $ — $ 22 Start-up of stand-alone functions — — 887 Retention awards to certain employees — 599 3,056 Employee termination benefits 910 2,100 14,473 Net charges to exit the use of a corporate operating lease — — 2,904 Relocation costs 1,087 — — Other — 490 696 Total restructuring and other charges $ 1,997 $ 3,189 $ 22,038

Provision for Income Taxes

Provision for Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Provision for Income Taxes	Note 16. Provision for Income Taxes The components of income (loss) before income taxes were as follows (in thousands): Years Ended December 31, 2018 2017 2016 United States $ (6,899 ) $ (43,403 ) $ (129,864 ) Foreign 46,724 60,242 82,340 Income (loss) before income taxes $ 39,825 $ 16,839 $ (47,524 ) The provision for income taxes consisted of the following (in thousands): Years Ended December 31, 2018 2017 2016 Current tax provision (benefit): U.S. federal $ 769 $ — $ (131 ) State 258 250 (792 ) Foreign 36,869 25,638 54,075 Total current 37,896 25,888 53,152 Deferred tax provision (benefit): U.S. federal 242 (5,102 ) 62,672 State (71 ) (15 ) 2,306 Foreign 1,366 1,924 6,112 Total deferred 1,537 (3,193 ) 71,090 Provision for income taxes $ 39,433 $ 22,695 $ 124,242 The provision for income taxes for 2018 , 2017 and 2016 resulted in effective tax rates on continuing operations of 99.0% , 134.8% and (261.4)% , respectively. The reasons for the differences between these effective tax rates and the U.S. statutory rate are as follows (in thousands): Years Ended December 31, 2018 2017 2016 Income taxes at U.S. federal statutory rate of 21% (35% for 2017 and 2016) $ 8,363 $ 5,894 $ (16,633 ) State income taxes net of federal tax benefit 261 361 (1,841 ) Foreign tax rate differential 28,266 44,868 29,428 U.S. foreign tax credits or deductions 8,349 (11,224 ) (9,492 ) Research and development credits — — (1,024 ) Unrecognized tax benefits 9,496 3,332 3,629 Change in valuation allowances (18,973 ) (48,059 ) 124,850 Proceeds from sale of joint venture assets — — (3,641 ) Capital contributions or distributions related to Spin-off (352 ) (1,084 ) (2,887 ) Change in U.S. deferred taxes related to Tax Reform Act — 15,518 — Transition Tax 873 10,060 — Other 3,150 3,029 1,853 Provision for income taxes $ 39,433 $ 22,695 $ 124,242 Tax legislation enacted and signed into law in 2017 in the U.S. and in Argentina resulted in changes to the statutory tax rates at which certain deferred tax assets and liabilities are recorded. In 2017 , these rate changes resulted in reconciling items between income tax recorded at the U.S. statutory rate and the company’s provision for income taxes of $15.5 million and $(3.1) million , respectively. In the U.S., the valuation allowance that had been previously recorded was reduced as a result of the U.S. statutory rate changes. Deferred income tax balances are the direct effect of temporary differences between the financial statement carrying amounts and the tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The tax effects of temporary differences that give rise to deferred tax assets and deferred tax liabilities are as follows (in thousands): December 31, 2018 2017 Deferred tax assets: Net operating loss carryforwards $ 68,377 $ 86,060 Foreign tax credit carryforward 81,759 92,734 Research and development credit carryforwards 31,251 31,251 Alternative minimum tax credit carryforwards 5,493 5,575 Deferred revenue 25,858 32,496 Other 39,751 47,496 Subtotal 252,489 295,612 Valuation allowances (200,105 ) (222,049 ) Total deferred tax assets 52,384 73,563 Deferred tax liabilities: Property, plant and equipment (28,413 ) (47,954 ) Other (18,606 ) (24,805 ) Total deferred tax liabilities (47,019 ) (72,759 ) Net deferred tax assets $ 5,365 $ 804 During the year ended December 31, 2017 , our Brazil subsidiary entered into two tax programs: 1) the Tax Regularization Program (the “PRT Program”) pursuant to Brazil Provisional Measure No. 766 issued on January 4, 2017 and 2) the Tax Special Regularization Program (the “PERT Program”) pursuant to Brazil Provisional Measure No. 783 issued on May 31, 2017. These programs allow for the partial settling of debts, both income tax debts and non-income-based tax debts, due by November 30, 2016 and April 30, 2017 to Brazil’s Federal Revenue Service for the PRT Program and PERT Program, respectively, with the use of tax credits, including income tax loss carryforwards. A $15.2 million income tax benefit was recorded during the year ended December 31, 2017 attributable to the reversal of valuation allowances against certain deferred tax assets related to income tax loss carryforwards that were utilized under the PRT Program and PERT Program, including interest income. Additionally, during the year ended December 31, 2017 , we incurred $1.8 million in penalties, which is reflected in other (income) expense, net, in our statements of operations, and $2.4 million in interest expense, which is reflected in interest expense in our statements of operations, attributable to the settling of non-income-based tax debts in connection with the PRT Program and the PERT Program. At December 31, 2018 , we had U.S. federal net operating loss carryforwards of approximately $77.4 million that are available to offset future taxable income. If not used, the carryforwards begin to expire in 2026. We also had approximately $146.8 million of net operating loss carryforwards in certain foreign jurisdictions (excluding discontinued operations), approximately $113.4 million of which has no expiration date, $3.7 million of which is subject to expiration from 2019 to 2023 , and the remainder of which expires in future years through 2038 . Foreign tax credit carryforwards of $81.8 million , research and development credits carryforwards of $31.3 million and alternative minimum tax credit carryforwards of $5.5 million are available to offset future payments of U.S. federal income tax. The foreign tax credits will expire in varying amounts beginning in 2020 and research and development credits will expire in varying amounts beginning in 2028. The U.S. corporate alternative minimum tax (“AMT”) has been repealed for tax years beginning after December 31, 2017. Companies with AMT credits that have not been utilized may claim a refund in future years for those credits even when no income tax liability exists. We expect our existing AMT credits to be fully utilized or refunded by 2021. We record valuation allowances when it is more-likely-than-not that some portion or all of our deferred tax assets will not be realized. The ultimate realization of the deferred tax assets depends on the ability to generate sufficient taxable income of the appropriate character and in the appropriate taxing jurisdictions in the future. If we do not meet our expectations with respect to taxable income, we may not realize the full benefit from our deferred tax assets which would require us to record a valuation allowance in our tax provision in future years. Management assesses all available positive and negative evidence to estimate our ability to generate sufficient future taxable income of the appropriate character, and in the appropriate taxing jurisdictions, to permit use of our existing deferred tax assets. A significant piece of objective negative evidence is a cumulative loss incurred over a three-year period in a taxing jurisdiction. Prevailing accounting practice is that such objective evidence would limit the ability to consider other subjective evidence, such as our projections for future growth. We incurred a three-year cumulative loss in the U.S. during 2016. Due to this significant negative evidence of cumulative losses, which outweighed the positive evidence of firm sales backlog and projected future taxable income, we were no longer able to support that it was more-likely-than-not that we will have sufficient taxable income of the appropriate character in the future that will allow us to realize our U.S. deferred tax assets. During the year ended December 31, 2016, we recorded a full valuation allowances against our U.S. deferred tax assets resulting in an additional charge of $119.8 million , of which $65.5 million related to U.S. deferred tax assets that existed at December 31, 2015. Pursuant to Sections 382 and 383 of the Internal Revenue Code of 1986, as amended (the “Code”), utilization of loss carryforwards and credit carryforwards, such as foreign tax credits, will be subject to annual limitations due to the historical ownership changes of both Hanover Compressor Company (“Hanover”) and Universal Compression Holdings, Inc. (“Universal”). In general, an ownership change, as defined by Section 382 of the Code, results from transactions increasing the ownership of certain stockholders or public groups in the stock of a corporation by more than 50 percentage points over a three -year period. The merger of Hanover and Universal to form Archrock (formerly Exterran Holdings, Inc.) in August 2007 resulted in such an ownership change for both Hanover and Universal. Our ability to utilize loss carryforwards and credit carryforwards against future U.S. federal income tax may be limited. The limitations may cause us to pay U.S. federal income taxes earlier; however, we do not currently expect that any loss carryforwards or credit carryforwards will expire as a result of these limitations. We consider the earnings of substantially all of our foreign subsidiaries to be indefinitely reinvested, and accordingly, as of December 31, 2018, we have not provided for taxes on approximately $341.7 million of cumulative undistributed foreign earnings. If we were to make a distribution from the unremitted earnings of these subsidiaries, we could be subject to taxes payable to various jurisdictions. Computation of the potential deferred tax liability associated with these undistributed earnings and any other basis differences is not practicable. If our expectations were to change regarding future tax consequences, we may be required to record additional deferred taxes that could have a material effect on our consolidated statement of financial position, results of operations or cash flows. On December 22, 2017, the U.S. government enacted comprehensive tax legislation. The Tax Reform Act makes broad and complex changes to the U.S. tax code, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) requiring companies to pay a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries (the “Transition Tax”); (3) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries; (4) requiring a current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations; (5) eliminating the corporate AMT and changing how existing AMT credits can be realized; (6) creating the base erosion anti-abuse tax (“BEAT”), a new minimum tax; (7) creating a new limitation on deductible interest expense; and (8) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017. Guidance under U.S. GAAP requires that the impact of tax legislation be recognized in the period in which the law was enacted. For the year ended December 31, 2017, our provision for income tax included the reversal of previously recorded valuation allowances of $5.6 million against our U.S. AMT carryforwards due to the Tax Cuts and Jobs Act (“Tax Reform Act”) which provides for the cancellation of the AMT and allows for a future refund and/or credit against regular income tax carry forwards. In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, which addresses how a company recognizes provisional amounts when a company does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete its accounting for the effect of the changes in the Tax Reform Act. The measurement period ends when a company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. We completed our analysis and as a result recorded a $0.9 million adjustment in the fourth quarter of 2018 to the provisional estimate for Transition Tax that we had recorded for the year ended December 31, 2017. Deemed repatriation transition tax on undistributed earnings: The Transition Tax is a deemed repatriation tax on certain previously untaxed accumulated earnings and profits (“E&P”) of our foreign subsidiaries. For the year ended December 31, 2017, we were able to reasonably estimate the Transition Tax and recorded a provisional Transition Tax obligation of $10.1 million , with a corresponding tax benefit from the reduction of the valuation allowance previously recorded against U.S. deferred tax assets. In the fourth quarter of 2018, we completed our analysis and recorded an additional $0.9 million of Transition Tax with a corresponding tax benefit from the reduction of the valuation allowance previously recorded against U.S. deferred tax assets. Result of reduction in U.S. corporate tax rate: The Tax Reform Act reduced the U.S. corporate tax rate from 35% to 21% . For the year ended December 31, 2017, we recorded $15.5 million due to the remeasurement of deferred tax assets and liabilities, to reflect the impact of the lower effective rate, with a corresponding tax benefit from the reduction of the valuation allowance previously recorded against U.S. deferred tax assets. While the Tax Reform Act provides for a territorial tax system, beginning in 2018, it includes two new U.S. tax base erosion provisions: the global intangible low-taxed income (“GILTI”) provisions and the BEAT provisions. The GILTI provisions require us to include foreign subsidiary earnings in excess of an allowable return on the foreign subsidiary’s tangible assets in our U.S. income tax return. We have made an accounting policy choice to treat taxes due on future U.S. inclusions in taxable income related to GILTI as a current-period expense when incurred (the “period cost method”). For the year ended December 31, 2018 , the GILTI tax provisions did not have a material impact on our provision for income taxes. The BEAT provisions eliminate the deduction of certain base-erosion payments made to related foreign corporations beginning in 2018, and impose a minimum tax if greater than regular tax. For the year ended December 31, 2018 , the BEAT tax provisions resulted in a $0.4 million charge to our provision for income taxes. On January 15, 2019, the IRS and Treasury Department released final regulations related to the Transition Tax. We will be considering the impacts of these final regulations and any additional guidance released on applying the impact of the Tax Reform Act prospectively and will record changes to our provision amounts (if any) in future periods. A reconciliation of the beginning and ending amount of unrecognized tax benefits (including discontinued operations) is shown below (in thousands): Years Ended December 31, 2018 2017 2016 Beginning balance $ 20,548 $ 18,237 $ 14,943 Additions based on tax positions related to prior years 2,542 2,034 3,140 Additions based on tax positions related to current year 9,983 1,686 256 Reductions based on settlement with government authority (1,391 ) (241 ) — Reductions based on lapse of statute of limitations (1,997 ) (378 ) (102 ) Reductions based on tax positions related to prior years (1,902 ) (790 ) — Ending balance $ 27,783 $ 20,548 $ 18,237 We had $27.8 million , $20.5 million and $18.2 million of unrecognized tax benefits at December 31, 2018 , 2017 and 2016 , respectively, which if recognized, would affect the effective tax rate (except for amounts that would be reflected in income (loss) from discontinued operations, net of tax). We also have recorded $4.7 million , $4.3 million and $3.0 million of potential interest expense and penalties related to unrecognized tax benefits associated with uncertain tax positions (including discontinued operations) as of December 31, 2018 , 2017 and 2016 , respectively. To the extent interest and penalties are not assessed with respect to unrecognized tax benefits, amounts accrued will be reduced and reflected as reductions in income tax expense. We and our subsidiaries file consolidated and separate income tax returns in the U.S. federal jurisdiction and in numerous state and foreign jurisdictions. Certain of our operations were historically included in Archrock’s consolidated income tax returns in the U.S. federal and state jurisdictions. In addition, certain of Archrock’s operations were historically included in our separate income tax returns in state jurisdictions. Under the Code and the related rules and regulations, each corporation that was a member of the Archrock consolidated U.S. federal income tax reporting group during any taxable period or portion of any taxable period ending on or before the effective time of the Spin-off is jointly and severally liable for the U.S. federal income tax liability of the entire Archrock consolidated tax reporting group for that taxable period. In connection with the Spin-off, we entered into a tax matters agreement with Archrock that allocates the responsibility for prior period taxes of the Archrock consolidated tax reporting group between us and Archrock. We are subject to examination by taxing authorities throughout the world, including the U.S and major foreign jurisdictions such as Argentina, Brazil and Mexico. With few exceptions, we and our subsidiaries are no longer subject to foreign income tax examinations for tax years before 2006. Several domestic and foreign audits are currently in progress and we do not expect any tax adjustments that would have a material impact on our financial position or results of operations. We believe it is reasonably possible that a decrease of up to approximately $9 million in unrecognized tax benefits may be necessary on or before December 31, 2019 due to the cash and non-cash settlement of audits and the expiration of statutes of limitations. However, due to the uncertain and complex application of tax regulations, it is possible that the ultimate resolution of these matters may result in liabilities which could materially differ from these estimates.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Stockholders' Equity	Note 17. Stockholders’ Equity Preferred Stock We have authorized 50.0 million shares of preferred stock, $0.01 par value per share, none of which was issued and outstanding at December 31, 2018 . Our board of directors is authorized to determine the rights, preferences, and restrictions on any series of preferred stock that we may issue. Common Stock We have authorized 250.0 million shares of common stock, $0.01 par value per share, of which 36,868,066 and 36,146,786 shares are issued and outstanding at December 31, 2018 , respectively. Each share of common stock is entitled to a single vote. We have not declared or paid any dividends through December 31, 2018 . Additional paid-in capital Pursuant to the separation and distribution agreement, EESLP contributed to a subsidiary of Archrock the right to receive payments based on a notional amount corresponding to payments received by our subsidiaries from PDVSA Gas in respect of the sale of our and our joint ventures’ previously nationalized assets promptly after such amounts are collected by our subsidiaries. Pursuant to the separation and distribution agreement, we transferred cash of $18.7 million , $19.7 million and $49.2 million to Archrock during the years ended December 31, 2018 , 2017 and 2016 , respectively. The transfers of cash were recognized as reductions to additional paid-in capital in our financial statements. Additionally, during the year ended December 31, 2017 we transferred cash of $25.0 million to Archrock in satisfaction of EESLP’s obligation to pay that sum following the occurrence of a qualified capital raise as required under the separation and distribution agreement. Comprehensive Income (Loss) Components of comprehensive income (loss) are net income (loss) and all changes in stockholders’ equity during a period except those resulting from transactions with owners. Our accumulated other comprehensive income consists of foreign currency translation adjustments. The following table presents the changes in accumulated other comprehensive income, net of tax, during the years ended December 31, 2016 , 2017 and 2018 (in thousands): Foreign Currency Translation Adjustment Accumulated other comprehensive income, January 1, 2016 $ 29,198 Income recognized in other comprehensive income (loss) 3,151 Loss reclassified from accumulated other comprehensive income (1) 15,159 Accumulated other comprehensive income, December 31, 2016 47,508 Loss recognized in other comprehensive income (loss) (1,801 ) Accumulated other comprehensive income, December 31, 2017 45,707 Loss recognized in other comprehensive income (loss) (7,476 ) Accumulated other comprehensive income, December 31, 2018 $ 38,231 (1) During the year ended December 31, 2016 , we reclassified a loss of $15.2 million related to foreign currency translation adjustments to income (loss) from discontinued operations in our statement of operations. This amount represents cumulative foreign currency translation adjustments associated with our Belleli CPE business that previously had been recognized in accumulated other comprehensive income. See Note 4 for further discussion of the sale of our Belleli CPE business.

Stock-Based Compensation and Aw

Stock-Based Compensation and Awards	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation and Awards	Note 18. Stock-Based Compensation and Awards Stock Incentive Plan On October 30, 2015, our compensation committee and board of directors each approved the Exterran Corporation 2015 Stock Incentive Plan (the “2015 Plan”) to provide for the granting of stock options, stock appreciation rights, restricted stock, restricted stock units, performance awards, other stock-based awards and dividend equivalents rights to employees, directors and consultants of Exterran Corporation. The 2015 Plan became effective on November 1, 2015. The maximum aggregate number of shares of our common stock that may be issued under the 2015 Plan is 3,000,000 shares, of which 1,114,438 shares were available to be issued under the plan as of December 31, 2018 . Awards granted under the 2015 Plan that are subsequently cancelled, terminated or forfeited are available for future grant. Directors’ Stock and Deferral Plan On October 30, 2015, our compensation committee and board of directors each approved the Exterran Corporation 2015 Directors’ Stock and Deferral Plan (the “Director Plan”). Under the Director Plan, which became effective on October 30, 2015, members of our board of directors may elect, on an annual basis, to receive 25% , 50% , 75% or 100% of their retainer and meeting fees (the “Retainer Fees”) in shares of our common stock in lieu of cash. The number of shares of our common stock issued to each director who elects to have a portion of their Retainer Fees paid in shares in lieu of cash is determined by dividing the applicable dollar amount of such portion by the closing sales price per share of our common stock on the last trading day of the quarter. Any portion of the Retainer Fees paid in cash will be paid to the director following the close of the calendar quarter for which such Retainer Fees were earned. Under the Director Plan, members of the board of directors who elect to receive the Retainer Fees in the form of shares may also elect to defer the receipt of the Retainer Fees until a later date. The maximum aggregate number of shares of our common stock that may be issued under the Director Plan is 125,000 shares, of which 77,870 shares were available to be issued under the plan as of December 31, 2018 . The board of directors will administer the Director Plan and has the authority to make certain equitable adjustments under the Director Plan in the event of certain corporate transactions. Stock-based compensation expense relates to awards to employees, directors and consultants of Exterran Corporation. The following table presents the stock-based compensation expense included in our results of operations (in thousands): Years Ended December 31, 2018 2017 2016 Stock options $ — $ 21 $ 115 Restricted stock, restricted stock units, performance units, cash settled restricted stock units and cash settled performance units 14,088 14,685 13,188 Restructuring and other charges—stock-based compensation expense — 662 1,333 Total stock-based compensation expense $ 14,088 $ 15,368 $ 14,636 Stock Options Stock options are granted at fair market value at the grant date, are exercisable according to the vesting schedule established and generally expire no later than 10 years after the grant date. Stock options generally vest one-third per year on each of the first three anniversaries of the grant date. There were no stock options granted during the years ended December 31, 2018 , 2017 and 2016 . The table below presents the changes in stock option awards for our common stock during the year ended December 31, 2018 . Stock Options (in thousands) Weighted Average Exercise Price Per Share Weighted Average Remaining Life (in years) Aggregate Intrinsic Value (in thousands) Options outstanding, January 1, 2018 210 $ 15.61 Granted — — Exercised (136 ) 10.06 Cancelled — — Options outstanding, December 31, 2018 74 25.81 1.7 $ — Options exercisable, December 31, 2018 74 25.81 1.7 — Intrinsic value is the difference between the market value of our common stock and the exercise price of each stock option multiplied by the number of stock options outstanding for those stock options where the market value exceeds their exercise price. The total intrinsic value of stock options exercised to purchase our common stock during the year ended December 31, 2018 was $2.1 million . Restricted Stock, Restricted Stock Units and Performance Units For grants of restricted stock, restricted stock units and performance units, we recognize compensation expense over the applicable vesting period equal to the fair value of our common stock at the grant date. Grants of restricted stock, restricted stock units and performance units generally vest one-third per year on each of the first three anniversaries of the grant date. Certain grants of restricted stock vest on the third anniversary of the grant date and certain grants of performance units vest on the second anniversary of the grant date. The table below presents the changes in restricted stock, restricted stock units and performance units for our common stock during the year ended December 31, 2018 . Shares (in thousands) Weighted Average Grant-Date Fair Value Per Share Non-vested awards, January 1, 2018 1,165 $ 23.93 Granted 576 26.25 Vested (591 ) 22.50 Cancelled (106 ) 25.18 Non-vested awards, December 31, 2018 1,044 25.89 As of December 31, 2018 , we estimate $16.5 million of unrecognized compensation cost related to unvested restricted stock, restricted stock units and performance units issued to our employees to be recognized over the weighted-average vesting period of 1.5 years .

Net Income (Loss) Per Common Sh

Net Income (Loss) Per Common Share	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Net Income (Loss) Per Common Share	Note 19. Net Income (Loss) Per Common Share Basic net income (loss) per common share is computed using the two-class method, which is an earnings allocation formula that determines net income (loss) per share for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. Under the two-class method, basic net income (loss) per common share is determined by dividing net income (loss) after deducting amounts allocated to participating securities, by the weighted average number of common shares outstanding for the period. Participating securities include unvested restricted stock and restricted stock units that have non-forfeitable rights to receive dividends or dividend equivalents, whether paid or unpaid. During periods of net loss from continuing operations, no effect is given to participating securities because they do not have a contractual obligation to participate in our losses. Diluted net income (loss) per common share is computed using the weighted average number of common shares outstanding adjusted for the incremental common stock equivalents attributed to outstanding options to purchase common stock and non-participating restricted stock units, unless their effect would be anti-dilutive. The following table presents a reconciliation of basic and diluted net income (loss) per common share for the years ended December 31, 2018 , 2017 and 2016 (in thousands, except per share data): Years Ended December 31, 2018 2017 2016 Numerator for basic and diluted net income (loss) per common share: Income (loss) from continuing operations $ 392 $ (5,856 ) $ (171,766 ) Income (loss) from discontinued operations, net of tax 24,462 39,736 (56,171 ) Less: Net income attributable to participating securities (641 ) — — Net income (loss) — used in basic and diluted net income (loss) per common share $ 24,213 $ 33,880 $ (227,937 ) Weighted average common shares outstanding including participating securities 36,371 35,961 35,489 Less: Weighted average participating securities outstanding (938 ) (1,002 ) (921 ) Weighted average common shares outstanding — used in basic net income (loss) per common share 35,433 34,959 34,568 Net dilutive potential common shares issuable: On exercise of options and vesting of restricted stock units 56 * * Weighted average common shares outstanding — used in diluted net income (loss) per common share 35,489 34,959 34,568 Net income (loss) per common share: Basic $ 0.68 $ 0.97 $ (6.59 ) Diluted $ 0.68 $ 0.97 $ (6.59 ) * Excluded from diluted net income (loss) per common share as their inclusion would have been anti-dilutive. The following table shows the potential shares of common stock issuable for the years ended December 31, 2018 , 2017 and 2016 that were excluded from computing diluted net income (loss) per common share as their inclusion would have been anti-dilutive (in thousands): Years Ended December 31, 2018 2017 2016 Net dilutive potential common shares issuable: On exercise of options where exercise price is greater than average market value for the period 35 43 225 On exercise of options and vesting of restricted stock units — 81 50 Net dilutive potential common shares issuable 35 124 275

Retirement Benefit Plan

Retirement Benefit Plan	12 Months Ended
	Dec. 31, 2018
Retirement Benefits [Abstract]
Retirement Benefit Plan	Note 20. Retirement Benefit Plan Our 401(k) retirement plan provides for optional employee contributions for certain employees who are U.S. citizens up to the Internal Revenue Service limit and discretionary employer matching contributions. During the year ended December 31, 2018 , we made discretionary matching contributions to each participant’s account at a rate of (i) 100.0% of each participant’s first 2% of contributions plus (ii) 50% of each participant’s contributions up to the next 4% of eligible compensation. During the years ended December 31, 2017 and 2016 , we made discretionary matching contributions to each participant’s account at a rate of (i) 100.0% of each participant’s first 1% of contributions plus (ii) 50% of each participant’s contributions up to the next 5% of eligible compensation. Costs incurred for employer matching contributions of $3.3 million , $2.4 million and $2.4 million during the years ended December 31, 2018 , 2017 and 2016 , respectively, are presented as selling, general and administrative expense in our statements of operations.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 21. Commitments and Contingencies Rent expense relating to facilities and other operating leases for 2018 , 2017 and 2016 was approximately $9.9 million , $9.3 million and $9.9 million , respectively. Commitments for future minimum rental payments with terms in excess of one year as of December 31, 2018 are as follows (in thousands): December 31, 2019 $ 6,076 2020 5,929 2021 4,583 2022 3,756 2023 3,038 Thereafter 11,615 Total $ 34,997 Contingencies Pursuant to the separation and distribution agreement, EESLP contributed to a subsidiary of Archrock the right to receive payments based on a notional amount corresponding to payments received by our subsidiaries from PDVSA Gas in respect of the sale of our joint ventures’ previously nationalized assets promptly after such amounts are collected by our subsidiaries. Our balance sheets do not reflect this contingent liability to Archrock or the amount payable to us by PDVSA Gas as a receivable. As of December 31, 2018 , the remaining principal amount due to us from PDVSA Gas in respect of the sale of our joint ventures’ previously nationalized assets was approximately $4 million . In subsequent periods, the recognition of a liability, if applicable, resulting from this contingency to Archrock is expected to impact equity, and as such, is not expected to have an impact on our statements of operations. In addition to U.S. federal, state and local and foreign income taxes, we are subject to a number of taxes that are not income-based. As many of these taxes are subject to audit by the taxing authorities, it is possible that an audit could result in additional taxes due. We accrue for such additional taxes when we determine that it is probable that we have incurred a liability and we can reasonably estimate the amount of the liability. As of December 31, 2018 and 2017 , we had accrued $5.1 million and $2.8 million , respectively, for the outcomes of non-income-based tax audits and had related indemnification receivables from Archrock of $2.8 million and $1.5 million , respectively. We do not expect that the ultimate resolutions of these audits will result in a material variance from the amounts accrued. We do not accrue for unasserted claims for tax audits unless we believe the assertion of a claim is probable, it is probable that it will be determined that the claim is owed and we can reasonably estimate the claim or range of the claim. We do not have any unasserted claims from non-income-based tax audits that we have determined are probable of assertion. We also believe the likelihood is remote that the impact of potential unasserted claims from non-income-based tax audits could be material to our financial position, but it is possible that the resolution of future audits could be material to our results of operations or cash flows for the period in which the resolution occurs. Our business can be hazardous, involving unforeseen circumstances such as uncontrollable flows of natural gas or well fluids and fires or explosions. As is customary in our industry, we review our safety equipment and procedures and carry insurance against some, but not all, risks of our business. Our insurance coverage includes property damage, general liability, commercial automobile liability and other coverage we believe is appropriate. We believe that our insurance coverage is customary for the industry and adequate for our business; however, losses and liabilities not covered by insurance would increase our costs. Additionally, we are substantially self-insured for workers’ compensation and employee group health claims in view of the relatively high per-incident deductibles we absorb under our insurance arrangements for these risks. Losses up to the deductible amounts are estimated and accrued based upon known facts, historical trends and industry averages. Litigation and Claims In the ordinary course of business, we are involved in various pending or threatened legal actions. While management is unable to predict the ultimate outcome of these actions, it believes that any ultimate liability arising from any of these actions will not have a material adverse effect on our financial position, results of operations or cash flows. However, because of the inherent uncertainty of litigation and arbitration proceedings, we cannot provide assurance that the resolution of any particular claim or proceeding to which we are a party will not have a material adverse effect on our financial position, results of operations or cash flows. Contemporaneously with filing the Form 8-K on April 26, 2016, we self-reported the errors and possible irregularities at Belleli EPC to the SEC. Since then, we have been cooperating with the SEC in its investigation of this matter. The SEC’s investigation related to the circumstances giving rise to the restatement is continuing, and we are presently unable to predict the duration, scope or results or whether the SEC will commence any legal action. Indemnifications In conjunction with, and effective as of the completion of, the Spin-off, we entered into the separation and distribution agreement with Archrock, which governs, among other things, the treatment between Archrock and us relating to certain aspects of indemnification, insurance, confidentiality and cooperation. Generally, the separation and distribution agreement provides for cross-indemnities principally designed to place financial responsibility for the obligations and liabilities of our business with us and financial responsibility for the obligations and liabilities of Archrock’s business with Archrock. Pursuant to the agreement, we and Archrock will generally release the other party from all claims arising prior to the Spin-off that relate to the other party’s business, subject to certain exceptions. Additionally, in conjunction with, and effective as of the completion of, the Spin-off, we entered into the tax matters agreement with Archrock. Under the tax matters agreement and subject to certain exceptions, we are generally liable for, and indemnify Archrock against, taxes attributable to our business, and Archrock is generally liable for, and indemnify us against, all taxes attributable to its business. We are generally liable for, and indemnify Archrock against, 50% of certain taxes that are not clearly attributable to our business or Archrock’s business. Any payment made by us to Archrock, or by Archrock to us, is treated by all parties for tax purposes as a nontaxable distribution or capital contribution, respectively, made immediately prior to the Spin-off.

Reportable Segments and Geograp

Reportable Segments and Geographic Information	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Reportable Segments and Geographic Information	Note 22. Reportable Segments and Geographic Information Our chief operating decision maker manages business operations, evaluates performance and allocates resources based upon the type of product or service provided. We have three reportable segments: contract operations, aftermarket services and product sales. In our contract operations segment, we provide compression and processing and treating services through the operation of our natural gas compression equipment and crude oil and natural gas production and process equipment for our customers. In our aftermarket services segment, we sell parts and components and provide operations, maintenance, repair, overhaul, upgrade, startup and commissioning and reconfiguration services to customers who own their own oil and natural gas compression, production, processing, treating and related equipment. In our product sales segment, we design, engineer, manufacture, install and sell natural gas compression packages as well as equipment used in the treating and processing of crude oil and natural gas to our customers throughout the world and for use in our contract operations business line. We evaluate the performance of our segments based on gross margin for each segment. Revenue only includes sales to external customers. We do not include intersegment sales when we evaluate our segments’ performance. During the year ended December 31, 2018 , MPLX LP (“MPLX”) accounted for approximately 15% of our total revenue. During the year ended December 31, 2017 , Archrock accounted for approximately 12% of our total revenue and during the year ended December 31, 2016 , Petroleo Brasileiro S.A. accounted for approximately 10% of our total revenue. No other customer accounted for more than 10% of our total revenue in 2018 , 2017 and 2016 . The following table presents revenue and other financial information by reportable segment for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Contract Operations Aftermarket Services Product Sales Reportable Segments Total Other (1) Total (2) 2018: Revenue $ 360,973 $ 120,676 $ 879,207 $ 1,360,856 $ — $ 1,360,856 Gross margin (3) 238,835 31,010 113,583 383,428 — 383,428 Total assets 860,896 28,071 205,302 1,094,269 459,519 1,553,788 Capital expenditures 197,025 474 7,552 205,051 10,057 215,108 2017: Revenue $ 375,269 $ 107,063 $ 732,962 $ 1,215,294 $ — $ 1,215,294 Gross margin (3) 241,889 28,842 76,409 347,140 — 347,140 Total assets 783,340 22,882 139,454 945,676 487,680 1,433,356 Capital expenditures 123,842 339 2,712 126,893 4,780 131,673 2016: Revenue $ 392,463 $ 120,550 $ 392,384 $ 905,397 $ — $ 905,397 Gross margin (3) 248,793 33,208 26,990 308,991 — 308,991 Total assets 745,752 28,421 169,525 943,698 381,266 1,324,964 Capital expenditures 69,946 332 1,371 71,649 2,021 73,670 (1) Includes corporate related items. (2) Totals exclude assets, capital expenditures and the operating results of discontinued operations. (3) Gross margin is defined as revenue less cost of sales (excluding depreciation and amortization expense). The following table presents assets from reportable segments reconciled to total assets as of December 31, 2018 and 2017 (in thousands): December 31, 2018 2017 Assets from reportable segments $ 1,094,269 $ 945,676 Other assets (1) 459,519 487,680 Assets associated with discontinued operations 13,266 27,451 Total assets $ 1,567,054 $ 1,460,807 (1) Includes corporate related items. The following tables present geographic data by country as of and for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Years Ended December 31, 2018 2017 2016 Revenue: U.S. $ 789,528 $ 648,290 $ 335,268 Argentina 139,987 156,340 151,374 Brazil 94,619 98,419 85,831 Mexico 68,745 75,388 90,876 Other international 267,977 236,857 242,048 Total $ 1,360,856 $ 1,215,294 $ 905,397 December 31, 2018 2017 2016 Property, plant and equipment, net: U.S. $ 112,420 $ 76,562 $ 84,669 Argentina 197,669 219,840 222,548 Brazil 105,979 138,835 157,139 Mexico 121,312 148,405 167,279 Oman 174,165 110,115 23,560 Other international 190,032 128,522 135,727 Total $ 901,577 $ 822,279 $ 790,922 The following table reconciles income (loss) before income taxes to total gross margin (in thousands): Years Ended December 31, 2018 2017 2016 Income (loss) before income taxes $ 39,825 $ 16,839 $ (47,524 ) Selling, general and administrative 178,401 176,318 157,485 Depreciation and amortization 123,922 107,824 132,886 Long-lived asset impairment 3,858 5,700 14,495 Restatement related charges (recoveries), net (276 ) 3,419 18,879 Restructuring and other charges 1,997 3,189 22,038 Interest expense 29,217 34,826 34,181 Equity in income of non-consolidated affiliates — — (10,403 ) Other (income) expense, net 6,484 (975 ) (13,046 ) Total gross margin $ 383,428 $ 347,140 $ 308,991

Selected Quarterly Financial Da

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data (Unaudited)	Note 23. Selected Quarterly Financial Data (Unaudited) In management’s opinion, the summarized quarterly financial data below (in thousands, except per share amounts) contains all appropriate adjustments, all of which are normally recurring adjustments, considered necessary to present fairly our financial position and results of operations for the respective periods. First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2018: Revenue $ 350,383 $ 343,471 $ 334,849 $ 332,153 Gross profit (1) 66,059 68,598 66,723 66,172 Income (loss) from continuing operations 3,938 (1,469 ) 3,196 (5,273 ) Income from discontinued operations, net of tax 1,399 1,544 2,173 19,346 Net income 5,337 75 5,369 14,073 Net income per common share: Basic $ 0.15 $ — $ 0.15 $ 0.40 Diluted 0.15 — 0.15 0.40 First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2017: Revenue $ 245,425 $ 317,701 $ 314,479 $ 337,689 Gross profit (1) 56,537 63,289 62,962 61,621 Income (loss) from continuing operations (12,323 ) 3,170 1,214 2,083 Income from discontinued operations, net of tax 32,644 374 2,139 4,579 Net income 20,321 3,544 3,353 6,662 Net income per common share: Basic $ 0.58 $ 0.10 $ 0.09 $ 0.18 Diluted 0.58 0.10 0.09 0.18 (1) Gross profit is defined as revenue less cost of sales, direct depreciation and amortization expense and direct long-lived asset impairment charges. Additional Notes: • During the fourth quarter of 2018 and the first quarter of 2017, we received installment payments, including an annual charge, of $19.8 million and $19.7 million , respectively, from PDVSA Gas in respect to our Venezuelan subsidiary’s sale of its previously nationalized assets (see Note 4 ).

Supplemental Guarantor Financia

Supplemental Guarantor Financial Information	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Guarantor Financial Information	Note 24. Supplemental Guarantor Financial Information In April 2017, our 100% owned subsidiaries EESLP and EES Finance Corp. (together, the “Issuers”) issued the 2017 Notes, which consists of $375.0 million aggregate principal amount senior unsecured notes. The 2017 Notes are fully and unconditionally guaranteed on a joint and several senior unsecured basis by Exterran Corporation (the “Parent Guarantor” or “Parent”). All other consolidated subsidiaries of Exterran are collectively referred to as the “Non-Guarantor Subsidiaries.” As a result of the Parent’s guarantee, we are presenting the following condensed consolidating financial information pursuant to Rule 3-10 of Regulation S-X, Financial Statements of Guarantors and Issuers of Guaranteed Securities Registered or Being Registered . These schedules are presented using the equity method of accounting for all periods presented. For purposes of the following condensed consolidating financial information, the Parent Guarantor’s investments in its subsidiaries, the Issuers’ investments in the Non-Guarantors Subsidiaries and the Non-Guarantor Subsidiaries’ investments in the Issuers are accounted for under the equity method of accounting. 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. Condensed Consolidating Balance Sheet December 31, 2018 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation ASSETS Cash and cash equivalents $ 46 $ 1,185 $ 18,069 $ — $ 19,300 Restricted cash — — 178 — 178 Accounts receivable, net — 92,880 155,587 — 248,467 Inventory, net — 87,972 62,717 — 150,689 Contract assets — 67,323 24,279 — 91,602 Intercompany receivables — 158,977 379,628 (538,605 ) — Other current assets — 7,744 36,490 — 44,234 Current assets associated with discontinued operations — — 11,605 — 11,605 Total current assets 46 416,081 688,553 (538,605 ) 566,075 Property, plant and equipment, net — 303,813 597,764 — 901,577 Investment in affiliates 554,207 870,959 (316,752 ) (1,108,414 ) — Deferred income taxes — 5,493 5,877 — 11,370 Intangible and other assets, net — 32,046 54,325 — 86,371 Long-term assets associated with discontinued operations — — 1,661 — 1,661 Total assets $ 554,253 $ 1,628,392 $ 1,031,428 $ (1,647,019 ) $ 1,567,054 LIABILITIES AND EQUITY Accounts payable, trade $ — $ 133,291 $ 32,453 $ — $ 165,744 Accrued liabilities — 47,012 76,323 — 123,335 Contract liabilities — 82,367 71,116 — 153,483 Intercompany payables 1,432 379,628 157,545 (538,605 ) — Current liabilities associated with discontinued operations — — 14,767 — 14,767 Total current liabilities 1,432 642,298 352,204 (538,605 ) 457,329 Long-term debt — 403,810 — — 403,810 Deferred income taxes — — 6,005 — 6,005 Long-term contract liabilities — 17,226 84,137 — 101,363 Other long-term liabilities — 10,851 28,961 — 39,812 Long-term liabilities associated with discontinued operations — — 5,914 — 5,914 Total liabilities 1,432 1,074,185 477,221 (538,605 ) 1,014,233 Total equity 552,821 554,207 554,207 (1,108,414 ) 552,821 Total liabilities and equity $ 554,253 $ 1,628,392 $ 1,031,428 $ (1,647,019 ) $ 1,567,054 Condensed Consolidating Balance Sheet December 31, 2017 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation ASSETS Cash and cash equivalents $ 397 $ 24,195 $ 24,553 $ — $ 49,145 Restricted cash — — 546 — 546 Accounts receivable, net — 123,362 142,690 — 266,052 Inventory, net — 50,528 57,381 — 107,909 Costs and estimated earnings in excess of billings on uncompleted contracts — 33,439 7,256 — 40,695 Intercompany receivables — 158,296 359,766 (518,062 ) — Other current assets — 6,095 32,612 — 38,707 Current assets held for sale — 15,761 — — 15,761 Current assets associated with discontinued operations — — 23,751 — 23,751 Total current assets 397 411,676 648,555 (518,062 ) 542,566 Property, plant and equipment, net — 288,670 533,609 — 822,279 Investment in affiliates 555,735 831,097 (275,362 ) (1,111,470 ) — Deferred income taxes — 5,452 5,098 — 10,550 Intangible and other assets, net — 12,218 64,762 — 76,980 Long-term assets held for sale — 4,732 — — 4,732 Long-term assets associated with discontinued operations — — 3,700 — 3,700 Total assets $ 556,132 $ 1,553,845 $ 980,362 $ (1,629,532 ) $ 1,460,807 LIABILITIES AND EQUITY Accounts payable, trade $ — $ 115,273 $ 33,471 $ — $ 148,744 Accrued liabilities 57 54,724 59,555 — 114,336 Deferred revenue — 2,162 21,740 — 23,902 Billings on uncompleted contracts in excess of costs and estimated earnings — 89,002 563 — 89,565 Intercompany payables 1,289 359,766 157,007 (518,062 ) — Current liabilities associated with discontinued operations — — 31,971 — 31,971 Total current liabilities 1,346 620,927 304,307 (518,062 ) 408,518 Long-term debt — 368,472 — — 368,472 Deferred income taxes — — 9,746 — 9,746 Long-term deferred revenue — 629 91,856 — 92,485 Other long-term liabilities — 8,082 12,190 — 20,272 Long-term liabilities associated with discontinued operations — — 6,528 — 6,528 Total liabilities 1,346 998,110 424,627 (518,062 ) 906,021 Total equity 554,786 555,735 555,735 (1,111,470 ) 554,786 Total liabilities and equity $ 556,132 $ 1,553,845 $ 980,362 $ (1,629,532 ) $ 1,460,807 Condensed Consolidating Statement of Operations and Comprehensive Income Year Ended December 31, 2018 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Revenues $ — $ 927,849 $ 521,879 $ (88,872 ) $ 1,360,856 Cost of sales (excluding depreciation and amortization expense) — 771,731 294,569 (88,872 ) 977,428 Selling, general and administrative 1,285 86,208 90,908 — 178,401 Depreciation and amortization — 35,754 88,168 — 123,922 Long-lived asset impairment — 3,081 777 — 3,858 Restatement related recoveries, net — (276 ) — — (276 ) Restructuring and other charges — — 1,997 — 1,997 Interest expense — 28,763 454 — 29,217 Intercompany charges, net — 6,647 (6,647 ) — — Equity in (income) loss of affiliates (25,986 ) (32,753 ) 6,767 51,972 — Other (income) expense, net (153 ) (4,625 ) 11,262 — 6,484 Income before income taxes 24,854 33,319 33,624 (51,972 ) 39,825 Provision for income taxes — 7,333 32,100 — 39,433 Income from continuing operations 24,854 25,986 1,524 (51,972 ) 392 Income from discontinued operations, net of tax — — 24,462 — 24,462 Net income 24,854 25,986 25,986 (51,972 ) 24,854 Other comprehensive loss (7,476 ) (7,476 ) (7,476 ) 14,952 (7,476 ) Comprehensive income attributable to Exterran stockholders $ 17,378 $ 18,510 $ 18,510 $ (37,020 ) $ 17,378 Condensed Consolidating Statement of Operations and Comprehensive Income Year Ended December 31, 2017 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Revenues $ — $ 838,981 $ 495,262 $ (118,949 ) $ 1,215,294 Cost of sales (excluding depreciation and amortization expense) — 716,002 271,101 (118,949 ) 868,154 Selling, general and administrative 2,327 84,111 89,880 — 176,318 Depreciation and amortization — 35,749 72,075 — 107,824 Long-lived asset impairment — 5,700 — — 5,700 Restatement related charges — 3,250 169 — 3,419 Restructuring and other charges — 2,145 1,044 — 3,189 Interest expense — 32,399 2,427 — 34,826 Intercompany charges, net — 6,355 (6,355 ) — — Equity in (income) loss of affiliates (36,207 ) (85,335 ) 49,128 72,414 — Other (income) expense, net — (2,577 ) 1,602 — (975 ) Income before income taxes 33,880 41,182 14,191 (72,414 ) 16,839 Provision for income taxes — 4,974 17,721 — 22,695 Income (loss) from continuing operations 33,880 36,208 (3,530 ) (72,414 ) (5,856 ) Income from discontinued operations, net of tax — — 39,736 — 39,736 Net income 33,880 36,208 36,206 (72,414 ) 33,880 Other comprehensive loss (1,801 ) (1,801 ) (1,801 ) 3,602 (1,801 ) Comprehensive income attributable to Exterran stockholders $ 32,079 $ 34,407 $ 34,405 $ (68,812 ) $ 32,079 Condensed Consolidating Statement of Operations and Comprehensive Loss Year Ended December 31, 2016 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Revenues $ — $ 493,428 $ 503,643 $ (91,674 ) $ 905,397 Cost of sales (excluding depreciation and amortization expense) — 399,800 288,280 (91,674 ) 596,406 Selling, general and administrative 912 84,550 72,023 — 157,485 Depreciation and amortization — 56,043 76,843 — 132,886 Long-lived asset impairment — 11,414 3,081 — 14,495 Restatement related charges 141 18,574 164 — 18,879 Restructuring and other charges — 18,640 3,398 — 22,038 Interest expense — 33,751 430 — 34,181 Intercompany charges, net — 3,576 (3,576 ) — — Equity in (income) loss of affiliates 226,873 22,869 204,004 (464,149 ) (10,403 ) Other (income) expense, net — (1,056 ) (11,990 ) — (13,046 ) Loss before income taxes (227,926 ) (154,733 ) (129,014 ) 464,149 (47,524 ) Provision for income taxes 11 72,139 52,092 — 124,242 Loss from continuing operations (227,937 ) (226,872 ) (181,106 ) 464,149 (171,766 ) Loss from discontinued operations, net of tax — — (56,171 ) — (56,171 ) Net loss (227,937 ) (226,872 ) (237,277 ) 464,149 (227,937 ) Other comprehensive income 18,310 18,310 18,310 (36,620 ) 18,310 Comprehensive loss attributable to Exterran stockholders $ (209,627 ) $ (208,562 ) $ (218,967 ) $ 427,529 $ (209,627 ) Condensed Consolidating Statement of Cash Flows Year Ended December 31, 2018 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Cash flows from operating activities: Net cash provided by (used in) continuing operations $ (494 ) $ 21,192 $ 132,598 $ — $ 153,296 Net cash provided by discontinued operations — — 4,004 — 4,004 Net cash provided by (used in) operating activities (494 ) 21,192 136,602 — 157,300 Cash flows from investing activities: Capital expenditures — (91,027 ) (124,081 ) — (215,108 ) Proceeds from sale of property, plant and equipment — 106 2,424 — 2,530 Proceeds from sale of business — 5,000 — — 5,000 Intercompany transfers — (143 ) (34,965 ) 35,108 — Net cash used in continuing operations — (86,064 ) (156,622 ) 35,108 (207,578 ) Net cash provided by discontinued operations — — 17,009 — 17,009 Net cash used in investing activities — (86,064 ) (139,613 ) 35,108 (190,569 ) Cash flows from financing activities: Proceeds from borrowings of debt — 585,014 — — 585,014 Repayments of debt — (550,497 ) — — (550,497 ) Intercompany transfers 143 34,965 — (35,108 ) — Cash transfer to Archrock, Inc. — (18,744 ) — — (18,744 ) Payments for debt issuance costs — (4,801 ) — — (4,801 ) Proceeds from stock options exercised — 548 — — 548 Purchases of treasury stock — (4,623 ) — — (4,623 ) Net cash provided by financing activities 143 41,862 — (35,108 ) 6,897 Effect of exchange rate changes on cash, cash equivalents and restricted cash — — (3,841 ) — (3,841 ) Net decrease in cash, cash equivalents and restricted cash (351 ) (23,010 ) (6,852 ) — (30,213 ) Cash, cash equivalents and restricted cash at beginning of period 397 24,195 25,099 — 49,691 Cash, cash equivalents and restricted cash at end of period $ 46 $ 1,185 $ 18,247 $ — $ 19,478 Condensed Consolidating Statement of Cash Flows Year Ended December 31, 2017 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Cash flows from operating activities: Net cash provided by (used in) continuing operations $ (476 ) $ 74,003 $ 76,893 $ — $ 150,420 Net cash used in discontinued operations — — (1,794 ) — (1,794 ) Net cash provided by (used in) operating activities (476 ) 74,003 75,099 — 148,626 Cash flows from investing activities: Capital expenditures — (54,527 ) (77,146 ) — (131,673 ) Proceeds from sale of property, plant and equipment — 3,809 5,057 — 8,866 Proceeds from sale of business — 894 — — 894 Intercompany transfers — (742 ) (16,267 ) 17,009 — Net cash used in continuing operations — (50,566 ) (88,356 ) 17,009 (121,913 ) Net cash provided by discontinued operations — — 19,575 — 19,575 Net cash used in investing activities — (50,566 ) (68,781 ) 17,009 (102,338 ) Cash flows from financing activities: Proceeds from borrowings of debt — 501,088 — — 501,088 Repayments of debt — (476,503 ) — — (476,503 ) Intercompany transfers 742 16,267 — (17,009 ) — Cash transfer to Archrock, Inc. — (44,720 ) — — (44,720 ) Payments for debt issuance costs — (7,911 ) — — (7,911 ) Proceeds from stock options exercised — 684 — — 684 Purchases of treasury stock — (4,792 ) — — (4,792 ) Net cash provided by (used in) financing activities 742 (15,887 ) — (17,009 ) (32,154 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — — (792 ) — (792 ) Net increase in cash, cash equivalents and restricted cash 266 7,550 5,526 — 13,342 Cash, cash equivalents and restricted cash at beginning of period 131 16,645 19,573 — 36,349 Cash, cash equivalents and restricted cash at end of period $ 397 $ 24,195 $ 25,099 $ — $ 49,691 Condensed Consolidating Statement of Cash Flows Year Ended December 31, 2016 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Cash flows from operating activities: Net cash provided by (used in) continuing operations $ (53 ) $ 84,164 $ 178,378 $ — $ 262,489 Net cash provided by discontinued operations — — 1,016 — 1,016 Net cash provided by (used in) operating activities (53 ) 84,164 179,394 — 263,505 Cash flows from investing activities: Capital expenditures — (26,670 ) (47,000 ) — (73,670 ) Proceeds from sale of property, plant and equipment — 1,488 1,326 — 2,814 Intercompany transfers — (147 ) (188,180 ) 188,327 — Return of investments in non-consolidated affiliates — — 10,403 — 10,403 Settlement of foreign currency derivatives — (709 ) — — (709 ) Net cash used in continuing operations — (26,038 ) (223,451 ) 188,327 (61,162 ) Net cash provided by discontinued operations — — 36,079 — 36,079 Net cash used in investing activities — (26,038 ) (187,372 ) 188,327 (25,083 ) Cash flows from financing activities: Proceeds from borrowings of debt — 430,758 — — 430,758 Repayments of debt — (610,261 ) — — (610,261 ) Intercompany transfers 147 188,180 — (188,327 ) — Cash transfer to Archrock, Inc. — (49,176 ) — — (49,176 ) Payments for debt issuance costs — (779 ) — — (779 ) Proceeds from stock options exercised — 786 — — 786 Purchases of treasury stock — (2,091 ) — — (2,091 ) Net cash provided by (used in) financing activities 147 (42,583 ) — (188,327 ) (230,763 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — — (1,832 ) — (1,832 ) Net increase (decrease) in cash, cash equivalents and restricted cash 94 15,543 (9,810 ) — 5,827 Cash, cash equivalents and restricted cash at beginning of period 37 1,102 29,383 — 30,522 Cash, cash equivalents and restricted cash at end of period $ 131 $ 16,645 $ 19,573 $ — $ 36,349

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Event	Note 25. Subsequent Event On February 20, 2019, our board of directors approved a share repurchase program, under which the Company is authorized to purchase up to $100.0 million of its outstanding common stock through February 2022.

SCHEDULE II VALUATION AND QUALI

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS	SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (In thousands) Description Balance at Beginning of Period Charged to Costs and Expenses Deductions Balance at End of Period Allowance for doubtful accounts deducted from accounts receivable in the balance sheets December 31, 2018 $ 5,388 $ 86 $ — $ 5,474 December 31, 2017 5,383 863 858 (1) 5,388 December 31, 2016 2,868 2,972 457 (1) 5,383 Allowance for obsolete and slow moving inventory deducted from inventories in the balance sheets December 31, 2018 $ 10,351 $ 87 $ 392 (2) $ 10,046 December 31, 2017 12,877 1,276 3,802 (2) 10,351 December 31, 2016 14,486 756 2,365 (2) 12,877 Allowance for deferred tax assets not expected to be realized December 31, 2018 $ 222,049 $ 12,648 $ 34,592 (3) $ 200,105 December 31, 2017 276,230 4,343 58,524 (3) 222,049 December 31, 2016 142,960 144,852 11,582 (3) 276,230 (1) Uncollectible accounts written off. (2) Obsolete inventory written off at cost, net of value received. (3) Reflects expected realization of deferred tax assets and amounts credited to other accounts for stock-based compensation excess tax benefits, expiring net operating losses, changes in tax rates and changes in currency exchange rates.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements of Exterran Corporation included herein have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain reclassifications resulting from the adoption of ASU 2016-18, Restricted Cash have been made to the statement of cash flows for the prior year periods to conform to the current year presentation. We refer to the consolidated financial statements collectively as “financial statements,” and individually as “balance sheets,” “statements of operations,” “statements of comprehensive income (loss),” “statements of stockholders’ equity” and “statements of cash flows” herein.
Use of Estimates in the Financial Statements	Use of Estimates in the Financial Statements The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets, liabilities, revenue and expenses, as well as the disclosures of contingent assets and liabilities. Because of the inherent uncertainties in this process, actual future results could differ from those expected at the reporting date. Significant estimates are required for contracts within our product sales segments that are accounted for based largely on our estimates on the extent of progress toward completion of the contracts, contract revenues and contract costs. As of December 31, 2018, we have made these significant estimates on all of our ongoing contracts. However, it is possible that current estimates could change due to unforeseen events, which could result in adjustments to our estimates. Variations from estimated contract performance could result in material adjustments to operating results. Management believes that the estimates and assumptions used are reasonable.
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.
Restricted Cash	Restricted Cash Restricted cash as of December 31, 2018 and 2017 consists of cash that contractually is not available for immediate use. Restricted cash is presented separately from cash and cash equivalents in our balance sheets.
Revenue Recognition	Revenue Recognition Revenue is recognized when control of the promised goods or services are transferred to our customers, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. See Note 3 for further discussion on revenue recognition.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk consist of cash and cash equivalents and accounts receivable. We believe that the credit risk in temporary cash investments is limited because our cash is held in accounts with multiple financial institutions. We record trade accounts receivable at the amount we invoice our customers, net of allowance for doubtful accounts. Trade accounts receivable are due from companies of varying sizes engaged principally in oil and natural gas activities throughout the world. We review the financial condition of customers prior to extending credit and generally do not obtain collateral for trade receivables. Payment terms are on a short-term basis and in accordance with industry practice. We consider this credit risk to be limited due to these companies’ financial resources, the nature of products and services we provide and the terms of our contract operations customer service agreements. We maintain allowances for doubtful accounts for estimated losses resulting from our customers’ inability to make required payments. The determination of the collectibility of amounts due from our customers requires us to use estimates and make judgments regarding future events and trends, including monitoring our customers’ payment history and current creditworthiness to determine that collectibility is reasonably assured, as well as consideration of the overall business climate in which our customers operate. Inherently, these uncertainties require us to make judgments and estimates regarding our customers’ ability to pay amounts due to us in order to determine the appropriate amount of valuation allowances required for doubtful accounts. We review the adequacy of our allowance for doubtful accounts quarterly. We determine the allowance needed based on historical write-off experience and by evaluating significant balances aged greater than 90 days individually for collectibility. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote.
Inventory	Inventory Inventory consists of parts used for manufacturing or maintenance of natural gas compression equipment, production equipment, processing and treating equipment and facilities and parts held for sale. Inventory is stated at the lower of cost and net realizable value using the average cost method. A reserve is recorded against inventory balances for estimated obsolete and slow moving items based on specific identification, historical experience and management estimates of market conditions and production requirements.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment is recorded at cost and depreciated using the straight-line method over their estimated useful lives as follows: Compression equipment, processing facilities and other fleet assets 3 to 23 years Buildings 20 to 35 years Transportation, shop equipment and other 3 to 10 years Installation costs capitalized on contract operations projects are generally depreciated over the life of the underlying contract. Major improvements that extend the useful life of an asset are capitalized. Repairs and maintenance are expensed as incurred. When property, plant and equipment is sold, or otherwise disposed of, the gain or loss is recorded in other (income) expense, net. Interest is capitalized during the construction period on equipment and facilities that are constructed for use in our operations. The capitalized interest is included as part of the cost of the asset to which it relates and is amortized over the asset’s estimated useful life.
Computer Software	Computer Software Certain costs related to the development or purchase of internal-use software are capitalized and amortized over the estimated useful life of the software, which ranges from three to five years . Costs related to the preliminary project stage and the post-implementation/operation stage of an internal-use computer software development project are expensed as incurred. Capitalized software costs are included in property, plant and equipment, net, in our balance sheets.
Long-Lived Assets	Long-Lived Assets We review long-lived assets such as property, plant and equipment and identifiable intangibles subject to amortization for impairment whenever events or changes in circumstances, including the removal of compressor units from our active fleet, indicate that the carrying amount of an asset may not be recoverable. An impairment loss exists when estimated undiscounted cash flows expected to result from the use of the asset and its eventual disposition are less than its carrying amount. When necessary, the excess of the asset’s carrying value as compared to its estimated fair value is recognized as an impairment in the period in which the impairment occurred. Identifiable intangibles are amortized over the assets’ estimated useful lives.
Demobilization	Demobilization The majority of our contract operations services contracts contain contractual requirements for us to perform demobilization activities at the end of the contract, with the scope of those activities varying by contract. Demobilization activities typically include, among other requirements, civil work and the removal of our equipment and installation from the customer’s site. Demobilization activities represent costs to fulfill obligations under our contracts and are not considered distinct within the context of our contract operations services contracts. Accrued demobilization costs are recorded, if applicable, at the time we become contractually obligated to perform these activities, which generally occurs upon our completion of the installation and commissioning of our equipment at the customer’s site. We record accrued demobilization costs as a liability and an equivalent demobilization asset as a capitalized fulfillment cost. Accrued demobilization costs are subsequently increased by interest accretion throughout the expected term of the contract. During the year ended December 31, 2018 , we recorded $2.6 million in accretion expense, which is reflected in depreciation and amortization expense in our statements of operations. Demobilization assets are amortized to cost of sales on a straight-line basis over the expected term of the contract. Any difference between the actual costs realized for the demobilization activities and the estimated liability established are recognized in cost of sales in our statement of operations.
Other (Income) Expense, Net	Other (Income) Expense, Net Other (income) expense, net, is primarily comprised of gains and losses from the remeasurement of our international subsidiaries’ net assets exposed to changes in foreign currency rates, short-term investments and the sale of used assets.
Income Taxes	Income Taxes Our operations are subject to U.S. federal, state and local and foreign income taxes. We and our subsidiaries file consolidated and separate income tax returns in the U.S. federal jurisdiction and in numerous state and foreign jurisdictions. We account for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statement carrying amounts and the tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. We record net deferred tax assets to the extent we believe these assets will more-likely-than-not be realized. In making such a determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies and results of recent operations. In the event we were to determine that we would be able to realize our deferred income tax assets in the future in excess of their net recorded amount, we would make an adjustment to the deferred tax asset valuation allowance, which would reduce the provision for income taxes. We record uncertain tax positions in accordance with the accounting standard on income taxes under a two-step process whereby (1) we determine whether it is more-likely-than-not that the tax positions will be sustained based on the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, we recognize the largest amount of tax benefit that is greater than 50 percent likely to be realized upon ultimate settlement with the related tax authority.
Foreign Currency Translation	Foreign Currency Translation The financial statements of our subsidiaries outside the U.S., except those for which we have determined that the U.S. dollar is the functional currency, are measured using the local currency as the functional currency. Assets and liabilities of these subsidiaries are translated at the exchange rates in effect at the balance sheet date. Income and expense items are translated at average monthly exchange rates. The resulting gains and losses from the translation of accounts into U.S. dollars are included in accumulated other comprehensive income in our balance sheets. For all subsidiaries, gains and losses from remeasuring foreign currency accounts into the functional currency are included in other (income) expense, net, in our statements of operations.
Recently Accounting Pronouncements	Recent Accounting Pronouncements We consider the applicability and impact of all Accounting Standard Updates (“ASUs”). ASUs not listed below were assessed and determined to be not applicable. Recently Adopted Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) . ASU 2014-09 (“Topic 606”) outlines a single comprehensive model for companies to use in accounting for revenue arising from contracts with customers and supersedes the most current revenue recognition guidance, including industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled for those goods or services. The update also requires disclosures enabling users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. On January 1, 2018, we adopted this update using the modified retrospective approach to all contracts that were not completed as of January 1, 2018. As a result of this adoption, we recorded a net increase to the accumulated deficit of $10.0 million as of January 1, 2018 and an increase of $3.7 million in revenue for the year ended December 31, 2018 . The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. See Note 3 for the required disclosures related to the impact of adopting this standard and a discussion of our updated policies related to revenue recognition. As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to the balance sheet as of January 1, 2018 (in thousands): Impact of Changes in Accounting Policies December 31, 2017 Adjustments January 1, 2018 ASSETS Current assets: Cash and cash equivalents $ 49,145 $ — $ 49,145 Restricted cash 546 — 546 Accounts receivable, net of allowance 266,052 (4,801 ) 261,251 Inventory, net 107,909 (124 ) 107,785 Costs and estimated earnings in excess of billings on uncompleted contracts 40,695 (40,695 ) — Contract assets — 50,824 50,824 Other current assets 38,707 (179 ) 38,528 Current assets held for sale 15,761 — 15,761 Current assets associated with discontinued operations 23,751 — 23,751 Total current assets 542,566 5,025 547,591 Property, plant and equipment, net 822,279 (2,029 ) 820,250 Deferred income taxes 10,550 404 10,954 Intangible and other assets, net 76,980 18,273 95,253 Long-term assets held for sale 4,732 — 4,732 Long-term assets associated with discontinued operations 3,700 — 3,700 Total assets $ 1,460,807 $ 21,673 $ 1,482,480 LIABILITIES AND STOCKHOLDERS ’ EQUITY Current liabilities: Accounts payable, trade $ 148,744 $ — $ 148,744 Accrued liabilities 114,336 16,044 130,380 Deferred revenue 23,902 (23,902 ) — Billings on uncompleted contracts in excess of costs and estimated earnings 89,565 (89,565 ) — Contract liabilities — 112,244 112,244 Current liabilities associated with discontinued operations 31,971 — 31,971 Total current liabilities 408,518 14,821 423,339 Long-term debt 368,472 — 368,472 Deferred income taxes 9,746 (1,908 ) 7,838 Long-term deferred revenue 92,485 (92,485 ) — Long-term contract liabilities — 89,004 89,004 Other long-term liabilities 20,272 22,262 42,534 Long-term liabilities associated with discontinued operations 6,528 — 6,528 Total liabilities 906,021 31,694 937,715 Stockholders’ equity: Preferred stock — — — Common stock 362 — 362 Additional paid-in capital 739,164 — 739,164 Accumulated deficit (223,510 ) (10,021 ) (233,531 ) Treasury stock (6,937 ) — (6,937 ) Accumulated other comprehensive income 45,707 — 45,707 Total stockholders’ equity 554,786 (10,021 ) 544,765 Total liabilities and stockholders’ equity $ 1,460,807 $ 21,673 $ 1,482,480 In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) . The update addresses eight specific cash flow issues and is intended to reduce diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. On January 1, 2018, we adopted this update. The adoption of this update did not have an impact on our statements of cash flows. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory . The update requires a reporting entity to recognize the tax expense from intra-entity asset transfers of assets other than inventory in the selling entity’s tax jurisdiction when the transfer occurs, even though the pre-tax effects of that transaction are eliminated in consolidation. Any deferred tax asset that arises in the buying entity’s jurisdiction would also be recognized at the time of the transfer. On January 1, 2018, we adopted this update using a modified retrospective approach. The impact of this adoption was immaterial to our financial statements. In November 2016, the FASB issued ASU 2016-18, Restricted Cash . The guidance requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents. On January 1, 2018, we adopted this update retrospectively. As a result of this adoption, $0.5 million and $0.7 million of restricted cash has been included in the cash and cash equivalent balances in the statements of cash flows for the years ended December 31, 2017 and 2016 , respectively. At December 31, 2016 , the $36.3 million of cash, cash equivalents and restricted cash on our statement of cash flow was composed of $35.7 million of cash and cash equivalent and $0.7 million of restricted cash. At December 31, 2017 , the $49.7 million of cash, cash equivalents and restricted cash on our statement of cash flows was composed of $49.1 million of cash and cash equivalents and $0.5 million of restricted cash. At December 31, 2018 , the $19.5 million of cash, cash equivalents and restricted cash on our statement of cash flows was composed of $19.3 million of cash and cash equivalents and $0.2 million of restricted cash. The impact of this adoption was immaterial to our financial statements. In May 2017, the FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718) . This update provides guidance that clarifies that changes to the terms or conditions of a share-based payment award should be accounted for as modifications. On January 1, 2018, we adopted this update using a prospective approach. The impact of this adoption was immaterial to our financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The update requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by long-term leases. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the statements of operations. The update also requires certain qualitative and quantitative disclosures about the amount, timing and uncertainty of cash flows arising from leases. Lessor accounting will be similar to the current model except for changes made to align with certain changes to the lessee model and the new revenue recognition standard. In July 2018, the FASB issued additional updates to provide clarification on the lease standard and to give entities another option for transition and to provide lessors with a practical expedient to reduce the cost and complexity of implementing the new standard. The new transition option allows entities to not apply the new leases standard in the comparative periods they present in their financial statements in the year of adoption. We intend to adopt the new lease guidance on January 1, 2019, using the transition method that allows us to initially apply Topic 842 as of January 1, 2019 and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Additionally, we expect to elect most of the standard’s available practical expedients upon adoption, including the package of practical expedients that allows us to not reassess expired or existing contracts for: (1) embedded leases, (2) lease classification and (3) initial direct costs. For existing contracts that do not require reassessment due to the practical expedient package we have elected, those contracts will continue to be recognized in our financial statements according to our accounting policies in place at December 31, 2018. New contracts entered into or any contract in existence at December 31, 2018 modified on or after January 1, 2019 will be assessed in accordance with Topic 842 and Topic 606, as applicable. In preparation for our adoption of the new standard, we are analyzing and updating data previously collected to evaluate the impact the adoption will have on our financial statements and implementing a system to capture the increased reporting and disclosure requirements. Currently, we tentatively estimate that, as a lessee, our assets and liabilities will increase by no more than $30 million upon adoption of the new lease guidance. Based upon the transition method and practical expedients we have elected, we do not believe the adoption of this standard will have a material effect on our statements of operations and cash flows. In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326) . The update changes the impairment model for most financial assets and certain other instruments, including trade and other receivables, held-to-maturity debt securities and loans, and requires entities to use a new forward-looking expected loss model that will result in the earlier recognition of allowance for losses. This update is effective for annual and interim periods beginning after December 15, 2019, with early adoption permitted. Adoption will require a modified retrospective approach beginning with the earliest period presented. We are currently evaluating the potential impact of the update on our financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. The update modifies the disclosure requirements on fair value measurements by removing, modifying and adding certain disclosure requirements. This update is effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted for any removed or modified disclosures upon issuance of the guidance and delayed adoption of the additional required disclosures is permitted until the effective date. Adoption will require a prospective or retrospective approach based on the specific amendments. We are currently evaluating the potential impact of the update on our financial statements.
Fair Value Measurements	The accounting standard for fair value measurements and disclosures establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into the following three categories: • Level 1 — Quoted unadjusted prices for identical instruments in active markets to which we have access at the date of measurement. • Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. Level 2 inputs are those in markets for which there are few transactions, the prices are not current, little public information exists or prices vary substantially over time or among brokered market makers. • Level 3 — Model derived valuations in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are those inputs that reflect our own assumptions regarding how market participants would price the asset or liability based on the best available information.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Schedule of Estimated Useful Lives	Property, plant and equipment is recorded at cost and depreciated using the straight-line method over their estimated useful lives as follows: Compression equipment, processing facilities and other fleet assets 3 to 23 years Buildings 20 to 35 years Transportation, shop equipment and other 3 to 10 years
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to the balance sheet as of January 1, 2018 (in thousands): Impact of Changes in Accounting Policies December 31, 2017 Adjustments January 1, 2018 ASSETS Current assets: Cash and cash equivalents $ 49,145 $ — $ 49,145 Restricted cash 546 — 546 Accounts receivable, net of allowance 266,052 (4,801 ) 261,251 Inventory, net 107,909 (124 ) 107,785 Costs and estimated earnings in excess of billings on uncompleted contracts 40,695 (40,695 ) — Contract assets — 50,824 50,824 Other current assets 38,707 (179 ) 38,528 Current assets held for sale 15,761 — 15,761 Current assets associated with discontinued operations 23,751 — 23,751 Total current assets 542,566 5,025 547,591 Property, plant and equipment, net 822,279 (2,029 ) 820,250 Deferred income taxes 10,550 404 10,954 Intangible and other assets, net 76,980 18,273 95,253 Long-term assets held for sale 4,732 — 4,732 Long-term assets associated with discontinued operations 3,700 — 3,700 Total assets $ 1,460,807 $ 21,673 $ 1,482,480 LIABILITIES AND STOCKHOLDERS ’ EQUITY Current liabilities: Accounts payable, trade $ 148,744 $ — $ 148,744 Accrued liabilities 114,336 16,044 130,380 Deferred revenue 23,902 (23,902 ) — Billings on uncompleted contracts in excess of costs and estimated earnings 89,565 (89,565 ) — Contract liabilities — 112,244 112,244 Current liabilities associated with discontinued operations 31,971 — 31,971 Total current liabilities 408,518 14,821 423,339 Long-term debt 368,472 — 368,472 Deferred income taxes 9,746 (1,908 ) 7,838 Long-term deferred revenue 92,485 (92,485 ) — Long-term contract liabilities — 89,004 89,004 Other long-term liabilities 20,272 22,262 42,534 Long-term liabilities associated with discontinued operations 6,528 — 6,528 Total liabilities 906,021 31,694 937,715 Stockholders’ equity: Preferred stock — — — Common stock 362 — 362 Additional paid-in capital 739,164 — 739,164 Accumulated deficit (223,510 ) (10,021 ) (233,531 ) Treasury stock (6,937 ) — (6,937 ) Accumulated other comprehensive income 45,707 — 45,707 Total stockholders’ equity 554,786 (10,021 ) 544,765 Total liabilities and stockholders’ equity $ 1,460,807 $ 21,673 $ 1,482,480 The following tables summarize the impacts of the adoption of the new revenue recognition guidance on our balance sheet, statement of operations and statement of cash flows as of and for the year ended December 31, 2018 (in thousands): December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 ASSETS Inventory, net $ 150,689 $ 1,303 $ 151,992 Contract assets 91,602 (20,114 ) 71,488 Other current assets 44,234 14,432 58,666 Property, plant and equipment, net 901,577 1,855 903,432 Deferred income taxes 11,370 (972 ) 10,398 Intangible and other assets, net 86,371 (17,448 ) 68,923 Total assets 1,567,054 (20,944 ) 1,546,110 LIABILITIES AND STOCKHOLDERS ’ EQUITY Accrued liabilities $ 123,335 $ (14,273 ) $ 109,062 Contract liabilities 153,483 2,347 155,830 Deferred income taxes 6,005 (32 ) 5,973 Long-term contract liabilities 101,363 3,512 104,875 Other long-term liabilities 39,812 (14,902 ) 24,910 Total liabilities 1,014,233 (23,348 ) 990,885 Accumulated deficit (208,677 ) 2,404 (206,273 ) Total stockholders’ equity 552,821 2,404 555,225 Total liabilities and stockholders’ equity 1,567,054 (20,944 ) 1,546,110 Year Ended December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 Cash flows from operating activities: Net income $ 24,854 $ (7,617 ) $ 17,237 Depreciation and amortization 123,922 (2,468 ) 121,454 Deferred income tax provision 1,537 (1,461 ) 76 Changes in assets and liabilities: Inventory (59,676 ) (1,179 ) (60,855 ) Contract assets (34,571 ) 2,477 (32,094 ) Other current assets 5,045 (951 ) 4,094 Accounts payable and other liabilities 13,801 9,894 23,695 Contract liabilities 62,934 1,414 64,348 Other 3,059 (109 ) 2,950 Net cash provided by continuing operations 153,296 — 153,296 Year Ended December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 Revenues: Contract operations $ 360,973 $ (2,079 ) $ 358,894 Aftermarket services 120,676 (1,662 ) 119,014 Cost of sales (excluding depreciation and amortization expense): Contract operations 122,138 2,344 124,482 Aftermarket services 89,666 (1,278 ) 88,388 Selling, general and administrative 178,401 6,739 185,140 Depreciation and amortization 123,922 (2,468 ) 121,454 Income before income taxes 39,825 (9,078 ) 30,747 Provision for income taxes 39,433 (1,461 ) 37,972 Income (loss) from continuing operations 392 (7,617 ) (7,225 ) Net income 24,854 (7,617 ) 17,237 Basic net income per common share $ 0.68 $ (0.19 ) $ 0.49 Diluted net income per common share 0.68 (0.19 ) 0.49

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables present disaggregated revenue by products and services lines and by geographical regions for the year ended December 31, 2018 (in thousands): Revenue by Products and Services Year Ended Contract Operations Segment: Contract operations services (1) $ 360,973 Aftermarket Services Segment: Operation and maintenance services (1) $ 57,123 Part sales (2) 43,928 Other services (1) 19,625 Total aftermarket services $ 120,676 Product Sales Segment: Compression equipment (1) $ 476,480 Processing and treating equipment (1) 368,137 Production equipment (2) 18,932 Other product sales (1) (2) 15,658 Total product sales revenues $ 879,207 Total revenues $ 1,360,856 (1) Revenue recognized over time. (2) Revenue recognized at a point in time. Revenue by Geographical Regions Year Ended North America $ 858,934 Latin America 274,414 Middle East and Africa 163,093 Asia Pacific 64,415 Total revenues $ 1,360,856
Contract with Customer, Asset and Liability	The following table provides information about accounts receivables, net, contract assets and contract liabilities from contracts with customers (in thousands): As of As of Accounts receivables, net $ 248,467 $ 261,251 Contract assets and contract liabilities: Current contract assets 91,602 50,824 Long-term contract assets 5,430 11,835 Current contract liabilities 153,483 112,244 Long-term contract liabilities 101,363 89,004
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to the balance sheet as of January 1, 2018 (in thousands): Impact of Changes in Accounting Policies December 31, 2017 Adjustments January 1, 2018 ASSETS Current assets: Cash and cash equivalents $ 49,145 $ — $ 49,145 Restricted cash 546 — 546 Accounts receivable, net of allowance 266,052 (4,801 ) 261,251 Inventory, net 107,909 (124 ) 107,785 Costs and estimated earnings in excess of billings on uncompleted contracts 40,695 (40,695 ) — Contract assets — 50,824 50,824 Other current assets 38,707 (179 ) 38,528 Current assets held for sale 15,761 — 15,761 Current assets associated with discontinued operations 23,751 — 23,751 Total current assets 542,566 5,025 547,591 Property, plant and equipment, net 822,279 (2,029 ) 820,250 Deferred income taxes 10,550 404 10,954 Intangible and other assets, net 76,980 18,273 95,253 Long-term assets held for sale 4,732 — 4,732 Long-term assets associated with discontinued operations 3,700 — 3,700 Total assets $ 1,460,807 $ 21,673 $ 1,482,480 LIABILITIES AND STOCKHOLDERS ’ EQUITY Current liabilities: Accounts payable, trade $ 148,744 $ — $ 148,744 Accrued liabilities 114,336 16,044 130,380 Deferred revenue 23,902 (23,902 ) — Billings on uncompleted contracts in excess of costs and estimated earnings 89,565 (89,565 ) — Contract liabilities — 112,244 112,244 Current liabilities associated with discontinued operations 31,971 — 31,971 Total current liabilities 408,518 14,821 423,339 Long-term debt 368,472 — 368,472 Deferred income taxes 9,746 (1,908 ) 7,838 Long-term deferred revenue 92,485 (92,485 ) — Long-term contract liabilities — 89,004 89,004 Other long-term liabilities 20,272 22,262 42,534 Long-term liabilities associated with discontinued operations 6,528 — 6,528 Total liabilities 906,021 31,694 937,715 Stockholders’ equity: Preferred stock — — — Common stock 362 — 362 Additional paid-in capital 739,164 — 739,164 Accumulated deficit (223,510 ) (10,021 ) (233,531 ) Treasury stock (6,937 ) — (6,937 ) Accumulated other comprehensive income 45,707 — 45,707 Total stockholders’ equity 554,786 (10,021 ) 544,765 Total liabilities and stockholders’ equity $ 1,460,807 $ 21,673 $ 1,482,480 The following tables summarize the impacts of the adoption of the new revenue recognition guidance on our balance sheet, statement of operations and statement of cash flows as of and for the year ended December 31, 2018 (in thousands): December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 ASSETS Inventory, net $ 150,689 $ 1,303 $ 151,992 Contract assets 91,602 (20,114 ) 71,488 Other current assets 44,234 14,432 58,666 Property, plant and equipment, net 901,577 1,855 903,432 Deferred income taxes 11,370 (972 ) 10,398 Intangible and other assets, net 86,371 (17,448 ) 68,923 Total assets 1,567,054 (20,944 ) 1,546,110 LIABILITIES AND STOCKHOLDERS ’ EQUITY Accrued liabilities $ 123,335 $ (14,273 ) $ 109,062 Contract liabilities 153,483 2,347 155,830 Deferred income taxes 6,005 (32 ) 5,973 Long-term contract liabilities 101,363 3,512 104,875 Other long-term liabilities 39,812 (14,902 ) 24,910 Total liabilities 1,014,233 (23,348 ) 990,885 Accumulated deficit (208,677 ) 2,404 (206,273 ) Total stockholders’ equity 552,821 2,404 555,225 Total liabilities and stockholders’ equity 1,567,054 (20,944 ) 1,546,110 Year Ended December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 Cash flows from operating activities: Net income $ 24,854 $ (7,617 ) $ 17,237 Depreciation and amortization 123,922 (2,468 ) 121,454 Deferred income tax provision 1,537 (1,461 ) 76 Changes in assets and liabilities: Inventory (59,676 ) (1,179 ) (60,855 ) Contract assets (34,571 ) 2,477 (32,094 ) Other current assets 5,045 (951 ) 4,094 Accounts payable and other liabilities 13,801 9,894 23,695 Contract liabilities 62,934 1,414 64,348 Other 3,059 (109 ) 2,950 Net cash provided by continuing operations 153,296 — 153,296 Year Ended December 31, 2018 As Reported Adjustments Balances Without Adoption of Topic 606 Revenues: Contract operations $ 360,973 $ (2,079 ) $ 358,894 Aftermarket services 120,676 (1,662 ) 119,014 Cost of sales (excluding depreciation and amortization expense): Contract operations 122,138 2,344 124,482 Aftermarket services 89,666 (1,278 ) 88,388 Selling, general and administrative 178,401 6,739 185,140 Depreciation and amortization 123,922 (2,468 ) 121,454 Income before income taxes 39,825 (9,078 ) 30,747 Provision for income taxes 39,433 (1,461 ) 37,972 Income (loss) from continuing operations 392 (7,617 ) (7,225 ) Net income 24,854 (7,617 ) 17,237 Basic net income per common share $ 0.68 $ (0.19 ) $ 0.49 Diluted net income per common share 0.68 (0.19 ) 0.49

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Summary of Operating Results and Balance Sheet Data	The following table summarizes the operating results of discontinued operations (in thousands): Years Ended December 31, 2018 2017 2016 Venezuela Belleli EPC Total Venezuela Belleli EPC Total Venezuela Belleli EPC Belleli CPE Total Revenue $ — $ 16,274 $ 16,274 $ — $ 72,693 $ 72,693 $ — $ 123,856 $ 28,469 $ 152,325 Cost of sales (excluding depreciation and amortization expense) — 10,271 10,271 — 41,329 41,329 — 126,322 27,323 153,645 Selling, general and administrative 131 1,652 1,783 131 5,262 5,393 54 8,500 1,494 10,048 Depreciation and amortization — 480 480 — 5,653 5,653 — 5,088 861 5,949 Long-lived asset impairment — — — — — — — 651 68,780 69,431 Recovery attributable to expropriation (16,564 ) — (16,564 ) (16,514 ) — (16,514 ) (33,124 ) — — (33,124 ) Restructuring related charges (recoveries), net — — — — (439 ) (439 ) — 5,419 2,735 8,154 Interest expense — — — — — — — — 17 17 Other (income) expense, net (3,249 ) (1,342 ) (4,591 ) (3,157 ) 539 (2,618 ) (5,966 ) (42 ) (191 ) (6,199 ) Provision for income taxes — 433 433 — 153 153 — 518 57 575 Income (loss) from discontinued operations, net of tax $ 19,682 $ 4,780 $ 24,462 $ 19,540 $ 20,196 $ 39,736 $ 39,036 $ (22,600 ) $ (72,607 ) $ (56,171 ) The following table summarizes the balance sheet data for discontinued operations (in thousands): December 31, 2018 December 31, 2017 Venezuela Belleli EPC Total Venezuela Belleli EPC Total Cash $ 3 $ — $ 3 $ 3 $ — $ 3 Accounts receivable — 11,509 11,509 — 14,770 14,770 Costs and estimated earnings in excess of billings on uncompleted contracts — — — — 7,786 7,786 Other current assets 7 86 93 2 1,190 1,192 Total current assets associated with discontinued operations 10 11,595 11,605 5 23,746 23,751 Property, plant and equipment, net — 28 28 — 1,054 1,054 Intangible and other assets, net — 1,633 1,633 — 2,646 2,646 Total assets associated with discontinued operations $ 10 $ 13,256 $ 13,266 $ 5 $ 27,446 $ 27,451 Accounts payable $ — $ 4,382 $ 4,382 $ — $ 9,253 $ 9,253 Accrued liabilities 12 7,831 7,843 59 15,617 15,676 Billings on uncompleted contracts in excess of costs and estimated earnings — 2,542 2,542 — 7,042 7,042 Total current liabilities associated with discontinued operations 12 14,755 14,767 59 31,912 31,971 Other long-term liabilities — 5,914 5,914 1 6,527 6,528 Total liabilities associated with discontinued operations $ 12 $ 20,669 $ 20,681 $ 60 $ 38,439 $ 38,499

Inventory, Net (Tables)

Inventory, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Inventory Disclosure [Abstract]
Schedule of Inventory, Net of Reserves	Inventory, net of reserves, consisted of the following amounts (in thousands): December 31, 2018 2017 Parts and supplies $ 92,016 $ 79,803 Work in progress 49,547 21,853 Finished goods 9,126 6,253 Inventory, net $ 150,689 $ 107,909

Property, Plant and Equipment_2

Property, Plant and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment, Net	Property, plant and equipment, net, consisted of the following (in thousands): December 31, 2018 2017 Compression equipment, processing facilities and other fleet assets (1) $ 1,713,153 $ 1,577,052 Land and buildings 101,571 96,463 Transportation and shop equipment 82,960 82,240 Computer software 54,572 50,299 Other 47,210 40,096 1,999,466 1,846,150 Accumulated depreciation (1,097,889 ) (1,023,871 ) Property, plant and equipment, net $ 901,577 $ 822,279 (1) In the fourth quarter of 2017, we evaluated the estimated useful lives and salvage values of our property, plant and equipment. As a result of this evaluation, we changed the useful lives and salvage values for our compression equipment from a maximum useful life of 30 years to 23 years and a maximum salvage value of 20% to 15% based on expected future use. During the years ended December 31, 2018 and 2017, we recorded increases in depreciation expense of $8.9 million and $1.2 million , respectively, as a result of these changes in useful lives and salvage values which impacted our diluted net income per share by $0.25 and $0.03 , respectively.

Intangible and Other Assets, _2

Intangible and Other Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Intangible and Other Assets, Net	Intangible and other assets, net, consisted of the following (in thousands): December 31, 2018 2017 Intangible assets, net $ 8,174 $ 9,861 Deferred financing costs 7,237 4,786 Long-term non-income tax receivable 8,621 14,560 Long-term income tax credits 2,412 11,344 Long-term notes receivable 20,399 3,004 Long-term deposits 13,492 11,648 Long-term contract assets 5,430 8,500 Contract fulfillment costs 6,580 — Contract obtainment costs 6,739 — Other 7,287 13,277 Intangibles and other assets, net $ 86,371 $ 76,980
Summary of Intangible Assets and Deferred Financing Costs	Intangible assets and deferred financing costs consisted of the following (in thousands): December 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Deferred financing costs (1) $ 13,164 $ (5,927 ) $ 8,368 $ (3,582 ) Marketing related (20 year life) 542 (542 ) 629 (589 ) Customer related (17-20 year life) 75,331 (68,423 ) 76,946 (67,342 ) Technology based (20 year life) 3,153 (3,153 ) 3,655 (3,438 ) Contract based (2-11 year life) 45,059 (43,793 ) 43,953 (43,953 ) Intangible assets and deferred financing costs $ 137,249 $ (121,838 ) $ 133,551 $ (118,904 ) (1) Represents debt issuance costs relating to our revolving credit facility. See Note 11 for further discussion regarding our revolving credit facility.
Estimated Future Intangible Amortization Expense	Estimated future intangible amortization expense is as follows (in thousands): 2019 $ 2,160 2020 1,852 2021 1,494 2022 1,074 2023 899 Thereafter 695 Total $ 8,174

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Payables and Accruals [Abstract]
Schedule of Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): December 31, 2018 2017 Accrued salaries and other benefits $ 46,836 $ 53,492 Accrued income and other taxes 31,862 26,503 Accrued demobilization costs 14,839 — Accrued warranty expense 2,191 3,190 Accrued interest 5,778 6,000 Accrued other liabilities 21,829 25,151 Accrued liabilities $ 123,335 $ 114,336 The following table summarizes the changes to our accrued liability balance related to restatement charges, net, for the years ended December 31, 2017 and 2018 (in thousands): Restatement Related Charges Beginning balance at January 1, 2017 $ 2,212 Additions for costs expensed, net 3,419 Reductions for payments, net (5,052 ) Ending balance at December 31, 2017 579 Reductions for recoveries, net (276 ) Reductions for payments, net (256 ) Ending balance at December 31, 2018 $ 47

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Debt consisted of the following (in thousands): December 31, 2018 2017 Revolving credit facility due October 2023 $ 35,000 $ — 8.125% senior notes due May 2025 375,000 375,000 Other debt 687 1,171 Unamortized deferred financing costs of 8.125% senior notes (6,428 ) (7,250 ) Total debt 404,259 368,921 Less: Amounts due within one year (1) (449 ) (449 ) Long- term debt $ 403,810 $ 368,472 (1) Short-term debt and the current portion of long-term debt are included in accrued liabilities in our balance sheets.
Schedule of Contractual Maturities of Long-Term Debt	Contractual maturities of debt (excluding interest to be accrued thereon) at December 31, 2018 are as follows (in thousands): December 31, 2019 $ 449 2020 238 2021 — 2022 — 2023 35,000 Thereafter 375,000 Total debt (1) $ 410,687 (1) This amount includes the full face value of the 2017 Notes and does not include unamortized debt financing costs of $6.4 million as of December 31, 2018 .

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	The following table presents our assets and liabilities measured at fair value on a nonrecurring basis during the years ended December 31, 2018 and 2017 , with pricing levels as of the date of valuation (in thousands): Year Ended Year Ended (Level 1) (Level 2) (Level 3) (Level 1) (Level 2) (Level 3) Impaired long-lived assets (1) $ — $ — $ 550 $ — $ — $ 403 Impaired assets—assets held for sale (2) — — 21,026 — — 20,493 Long-term note receivable (3) — — 14,573 — — — (1) Our estimate of the fair value of the impaired long-lived assets during the years ended December 31, 2018 and 2017 was primarily based on the expected net sale proceeds compared to other fleet units we sold and/or a review of other units offered for sale by third parties. (2) Our estimate of the fair value of the impaired PEQ assets, which were classified as assets held for sale as of December 31, 2017 and sold in June 2018, was based on the expected and actual net proceeds from the sale of the assets. (3) Our estimate of the fair value of a note receivable was discounted based on a settlement period of eight years and a discount rate of 5.2% .

Restatement Related Charges (_2

Restatement Related Charges (Recoveries), Net (Tables)	12 Months Ended
	Dec. 31, 2018
Restatement Charges [Abstract]
Summary of Change to Accrued Liability Balance Related to Restatement Charges	Accrued liabilities consisted of the following (in thousands): December 31, 2018 2017 Accrued salaries and other benefits $ 46,836 $ 53,492 Accrued income and other taxes 31,862 26,503 Accrued demobilization costs 14,839 — Accrued warranty expense 2,191 3,190 Accrued interest 5,778 6,000 Accrued other liabilities 21,829 25,151 Accrued liabilities $ 123,335 $ 114,336 The following table summarizes the changes to our accrued liability balance related to restatement charges, net, for the years ended December 31, 2017 and 2018 (in thousands): Restatement Related Charges Beginning balance at January 1, 2017 $ 2,212 Additions for costs expensed, net 3,419 Reductions for payments, net (5,052 ) Ending balance at December 31, 2017 579 Reductions for recoveries, net (276 ) Reductions for payments, net (256 ) Ending balance at December 31, 2018 $ 47
Summary of Components of Charges Included in Statements of Operations	The following table summarizes the components of charges included in restatement related charges (recoveries), net, in our statements of operations for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Years Ended December 31, 2018 2017 2016 External accounting costs $ — $ 1,071 $ 21,073 External legal costs 531 4,396 7,565 Other 413 753 1,448 Recoveries from Archrock (1,220 ) (2,801 ) (11,207 ) Total restatement related charges (recoveries), net $ (276 ) $ 3,419 $ 18,879

Restructuring and Other Charg_2

Restructuring and Other Charges (Tables)	12 Months Ended
	Dec. 31, 2018
Restructuring and Related Activities [Abstract]
Summary of Changes to Accrued Liability Balance Related to Restructuring and Other Charges	The following table summarizes the changes to our accrued liability balance related to restructuring and other charges for the years ended December 31, 2017 and 2018 (in thousands): Spin-off Cost Reduction Plan Relocation Plan Total Beginning balance at January 1, 2017 $ 934 $ 2,461 $ — $ 3,395 Additions for costs expensed 599 2,590 — 3,189 Less non-cash income (expense) (223 ) 740 — 517 Reductions for payments (1,310 ) (5,179 ) — (6,489 ) Ending balance at December 31, 2017 — 612 — 612 Additions for costs expensed — — 1,997 1,997 Reductions for payments — (612 ) (1,688 ) (2,300 ) Ending balance at December 31, 2018 $ — $ — $ 309 $ 309
Summary of the Components of Charges Included in Restructuring and Other Charges	The following table summarizes the components of charges included in restructuring and other charges in our statements of operations for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Years Ended December 31, 2018 2017 2016 Consulting fees $ — $ — $ 22 Start-up of stand-alone functions — — 887 Retention awards to certain employees — 599 3,056 Employee termination benefits 910 2,100 14,473 Net charges to exit the use of a corporate operating lease — — 2,904 Relocation costs 1,087 — — Other — 490 696 Total restructuring and other charges $ 1,997 $ 3,189 $ 22,038

Provision for Income Taxes (Tab

Provision for Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Schedule of Components of Income (Loss) Before Income Taxes	The components of income (loss) before income taxes were as follows (in thousands): Years Ended December 31, 2018 2017 2016 United States $ (6,899 ) $ (43,403 ) $ (129,864 ) Foreign 46,724 60,242 82,340 Income (loss) before income taxes $ 39,825 $ 16,839 $ (47,524 )
Schedule of Provision for Income Taxes	The provision for income taxes consisted of the following (in thousands): Years Ended December 31, 2018 2017 2016 Current tax provision (benefit): U.S. federal $ 769 $ — $ (131 ) State 258 250 (792 ) Foreign 36,869 25,638 54,075 Total current 37,896 25,888 53,152 Deferred tax provision (benefit): U.S. federal 242 (5,102 ) 62,672 State (71 ) (15 ) 2,306 Foreign 1,366 1,924 6,112 Total deferred 1,537 (3,193 ) 71,090 Provision for income taxes $ 39,433 $ 22,695 $ 124,242
Schedule of Reasons for the Difference Between Effective Tax Rates and U.S. Statutory Rate	The reasons for the differences between these effective tax rates and the U.S. statutory rate are as follows (in thousands): Years Ended December 31, 2018 2017 2016 Income taxes at U.S. federal statutory rate of 21% (35% for 2017 and 2016) $ 8,363 $ 5,894 $ (16,633 ) State income taxes net of federal tax benefit 261 361 (1,841 ) Foreign tax rate differential 28,266 44,868 29,428 U.S. foreign tax credits or deductions 8,349 (11,224 ) (9,492 ) Research and development credits — — (1,024 ) Unrecognized tax benefits 9,496 3,332 3,629 Change in valuation allowances (18,973 ) (48,059 ) 124,850 Proceeds from sale of joint venture assets — — (3,641 ) Capital contributions or distributions related to Spin-off (352 ) (1,084 ) (2,887 ) Change in U.S. deferred taxes related to Tax Reform Act — 15,518 — Transition Tax 873 10,060 — Other 3,150 3,029 1,853 Provision for income taxes $ 39,433 $ 22,695 $ 124,242
Schedule of Tax Effects of Temporary Differences	The tax effects of temporary differences that give rise to deferred tax assets and deferred tax liabilities are as follows (in thousands): December 31, 2018 2017 Deferred tax assets: Net operating loss carryforwards $ 68,377 $ 86,060 Foreign tax credit carryforward 81,759 92,734 Research and development credit carryforwards 31,251 31,251 Alternative minimum tax credit carryforwards 5,493 5,575 Deferred revenue 25,858 32,496 Other 39,751 47,496 Subtotal 252,489 295,612 Valuation allowances (200,105 ) (222,049 ) Total deferred tax assets 52,384 73,563 Deferred tax liabilities: Property, plant and equipment (28,413 ) (47,954 ) Other (18,606 ) (24,805 ) Total deferred tax liabilities (47,019 ) (72,759 ) Net deferred tax assets $ 5,365 $ 804
Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits (including discontinued operations) is shown below (in thousands): Years Ended December 31, 2018 2017 2016 Beginning balance $ 20,548 $ 18,237 $ 14,943 Additions based on tax positions related to prior years 2,542 2,034 3,140 Additions based on tax positions related to current year 9,983 1,686 256 Reductions based on settlement with government authority (1,391 ) (241 ) — Reductions based on lapse of statute of limitations (1,997 ) (378 ) (102 ) Reductions based on tax positions related to prior years (1,902 ) (790 ) — Ending balance $ 27,783 $ 20,548 $ 18,237

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income, Net of Tax	The following table presents the changes in accumulated other comprehensive income, net of tax, during the years ended December 31, 2016 , 2017 and 2018 (in thousands): Foreign Currency Translation Adjustment Accumulated other comprehensive income, January 1, 2016 $ 29,198 Income recognized in other comprehensive income (loss) 3,151 Loss reclassified from accumulated other comprehensive income (1) 15,159 Accumulated other comprehensive income, December 31, 2016 47,508 Loss recognized in other comprehensive income (loss) (1,801 ) Accumulated other comprehensive income, December 31, 2017 45,707 Loss recognized in other comprehensive income (loss) (7,476 ) Accumulated other comprehensive income, December 31, 2018 $ 38,231 (1) During the year ended December 31, 2016 , we reclassified a loss of $15.2 million related to foreign currency translation adjustments to income (loss) from discontinued operations in our statement of operations. This amount represents cumulative foreign currency translation adjustments associated with our Belleli CPE business that previously had been recognized in accumulated other comprehensive income. See Note 4 for further discussion of the sale of our Belleli CPE business.

Stock-Based Compensation and _2

Stock-Based Compensation and Awards (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock-Based Compensation Expense	The following table presents the stock-based compensation expense included in our results of operations (in thousands): Years Ended December 31, 2018 2017 2016 Stock options $ — $ 21 $ 115 Restricted stock, restricted stock units, performance units, cash settled restricted stock units and cash settled performance units 14,088 14,685 13,188 Restructuring and other charges—stock-based compensation expense — 662 1,333 Total stock-based compensation expense $ 14,088 $ 15,368 $ 14,636
Schedule of Changes in Stock Option Awards for Common Stock	The table below presents the changes in stock option awards for our common stock during the year ended December 31, 2018 . Stock Options (in thousands) Weighted Average Exercise Price Per Share Weighted Average Remaining Life (in years) Aggregate Intrinsic Value (in thousands) Options outstanding, January 1, 2018 210 $ 15.61 Granted — — Exercised (136 ) 10.06 Cancelled — — Options outstanding, December 31, 2018 74 25.81 1.7 $ — Options exercisable, December 31, 2018 74 25.81 1.7 —
Schedule of Changes in Restricted Stock, Restricted Stock Units and Performance Units	The table below presents the changes in restricted stock, restricted stock units and performance units for our common stock during the year ended December 31, 2018 . Shares (in thousands) Weighted Average Grant-Date Fair Value Per Share Non-vested awards, January 1, 2018 1,165 $ 23.93 Granted 576 26.25 Vested (591 ) 22.50 Cancelled (106 ) 25.18 Non-vested awards, December 31, 2018 1,044 25.89

Net Income (Loss) Per Common _2

Net Income (Loss) Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Reconciliation of Basic and Diluted Net Income (Loss) Per Common Share	The following table presents a reconciliation of basic and diluted net income (loss) per common share for the years ended December 31, 2018 , 2017 and 2016 (in thousands, except per share data): Years Ended December 31, 2018 2017 2016 Numerator for basic and diluted net income (loss) per common share: Income (loss) from continuing operations $ 392 $ (5,856 ) $ (171,766 ) Income (loss) from discontinued operations, net of tax 24,462 39,736 (56,171 ) Less: Net income attributable to participating securities (641 ) — — Net income (loss) — used in basic and diluted net income (loss) per common share $ 24,213 $ 33,880 $ (227,937 ) Weighted average common shares outstanding including participating securities 36,371 35,961 35,489 Less: Weighted average participating securities outstanding (938 ) (1,002 ) (921 ) Weighted average common shares outstanding — used in basic net income (loss) per common share 35,433 34,959 34,568 Net dilutive potential common shares issuable: On exercise of options and vesting of restricted stock units 56 * * Weighted average common shares outstanding — used in diluted net income (loss) per common share 35,489 34,959 34,568 Net income (loss) per common share: Basic $ 0.68 $ 0.97 $ (6.59 ) Diluted $ 0.68 $ 0.97 $ (6.59 ) * Excluded from diluted net income (loss) per common share as their inclusion would have been anti-dilutive.
Schedule of Stock Excluded From Computing Diluted Net Income (Loss) Per Common Share	The following table shows the potential shares of common stock issuable for the years ended December 31, 2018 , 2017 and 2016 that were excluded from computing diluted net income (loss) per common share as their inclusion would have been anti-dilutive (in thousands): Years Ended December 31, 2018 2017 2016 Net dilutive potential common shares issuable: On exercise of options where exercise price is greater than average market value for the period 35 43 225 On exercise of options and vesting of restricted stock units — 81 50 Net dilutive potential common shares issuable 35 124 275

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments	Commitments for future minimum rental payments with terms in excess of one year as of December 31, 2018 are as follows (in thousands): December 31, 2019 $ 6,076 2020 5,929 2021 4,583 2022 3,756 2023 3,038 Thereafter 11,615 Total $ 34,997

Reportable Segments and Geogr_2

Reportable Segments and Geographic Information (Tables)	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Schedule of Revenues and Other Financial Information	The following table presents revenue and other financial information by reportable segment for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Contract Operations Aftermarket Services Product Sales Reportable Segments Total Other (1) Total (2) 2018: Revenue $ 360,973 $ 120,676 $ 879,207 $ 1,360,856 $ — $ 1,360,856 Gross margin (3) 238,835 31,010 113,583 383,428 — 383,428 Total assets 860,896 28,071 205,302 1,094,269 459,519 1,553,788 Capital expenditures 197,025 474 7,552 205,051 10,057 215,108 2017: Revenue $ 375,269 $ 107,063 $ 732,962 $ 1,215,294 $ — $ 1,215,294 Gross margin (3) 241,889 28,842 76,409 347,140 — 347,140 Total assets 783,340 22,882 139,454 945,676 487,680 1,433,356 Capital expenditures 123,842 339 2,712 126,893 4,780 131,673 2016: Revenue $ 392,463 $ 120,550 $ 392,384 $ 905,397 $ — $ 905,397 Gross margin (3) 248,793 33,208 26,990 308,991 — 308,991 Total assets 745,752 28,421 169,525 943,698 381,266 1,324,964 Capital expenditures 69,946 332 1,371 71,649 2,021 73,670 (1) Includes corporate related items. (2) Totals exclude assets, capital expenditures and the operating results of discontinued operations. (3) Gross margin is defined as revenue less cost of sales (excluding depreciation and amortization expense).
Schedule of Asset from Reportable Segments to Total Assets	The following table presents assets from reportable segments reconciled to total assets as of December 31, 2018 and 2017 (in thousands): December 31, 2018 2017 Assets from reportable segments $ 1,094,269 $ 945,676 Other assets (1) 459,519 487,680 Assets associated with discontinued operations 13,266 27,451 Total assets $ 1,567,054 $ 1,460,807 (1) Includes corporate related items.
Schedule of Geographic Data	The following tables present geographic data by country as of and for the years ended December 31, 2018 , 2017 and 2016 (in thousands): Years Ended December 31, 2018 2017 2016 Revenue: U.S. $ 789,528 $ 648,290 $ 335,268 Argentina 139,987 156,340 151,374 Brazil 94,619 98,419 85,831 Mexico 68,745 75,388 90,876 Other international 267,977 236,857 242,048 Total $ 1,360,856 $ 1,215,294 $ 905,397 December 31, 2018 2017 2016 Property, plant and equipment, net: U.S. $ 112,420 $ 76,562 $ 84,669 Argentina 197,669 219,840 222,548 Brazil 105,979 138,835 157,139 Mexico 121,312 148,405 167,279 Oman 174,165 110,115 23,560 Other international 190,032 128,522 135,727 Total $ 901,577 $ 822,279 $ 790,922
Reconciliation of Income (Loss) Before Income Taxes to Total Gross Margin	The following table reconciles income (loss) before income taxes to total gross margin (in thousands): Years Ended December 31, 2018 2017 2016 Income (loss) before income taxes $ 39,825 $ 16,839 $ (47,524 ) Selling, general and administrative 178,401 176,318 157,485 Depreciation and amortization 123,922 107,824 132,886 Long-lived asset impairment 3,858 5,700 14,495 Restatement related charges (recoveries), net (276 ) 3,419 18,879 Restructuring and other charges 1,997 3,189 22,038 Interest expense 29,217 34,826 34,181 Equity in income of non-consolidated affiliates — — (10,403 ) Other (income) expense, net 6,484 (975 ) (13,046 ) Total gross margin $ 383,428 $ 347,140 $ 308,991

Selected Quarterly Financial _2

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Data	In management’s opinion, the summarized quarterly financial data below (in thousands, except per share amounts) contains all appropriate adjustments, all of which are normally recurring adjustments, considered necessary to present fairly our financial position and results of operations for the respective periods. First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2018: Revenue $ 350,383 $ 343,471 $ 334,849 $ 332,153 Gross profit (1) 66,059 68,598 66,723 66,172 Income (loss) from continuing operations 3,938 (1,469 ) 3,196 (5,273 ) Income from discontinued operations, net of tax 1,399 1,544 2,173 19,346 Net income 5,337 75 5,369 14,073 Net income per common share: Basic $ 0.15 $ — $ 0.15 $ 0.40 Diluted 0.15 — 0.15 0.40 First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2017: Revenue $ 245,425 $ 317,701 $ 314,479 $ 337,689 Gross profit (1) 56,537 63,289 62,962 61,621 Income (loss) from continuing operations (12,323 ) 3,170 1,214 2,083 Income from discontinued operations, net of tax 32,644 374 2,139 4,579 Net income 20,321 3,544 3,353 6,662 Net income per common share: Basic $ 0.58 $ 0.10 $ 0.09 $ 0.18 Diluted 0.58 0.10 0.09 0.18 (1) Gross profit is defined as revenue less cost of sales, direct depreciation and amortization expense and direct long-lived asset impairment charges.

Supplemental Guarantor Financ_2

Supplemental Guarantor Financial Information (Tables)	12 Months Ended
	Dec. 31, 2018
Table Text Block Supplement [Abstract]
Condensed Consolidating Balance Sheet	Condensed Consolidating Balance Sheet December 31, 2018 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation ASSETS Cash and cash equivalents $ 46 $ 1,185 $ 18,069 $ — $ 19,300 Restricted cash — — 178 — 178 Accounts receivable, net — 92,880 155,587 — 248,467 Inventory, net — 87,972 62,717 — 150,689 Contract assets — 67,323 24,279 — 91,602 Intercompany receivables — 158,977 379,628 (538,605 ) — Other current assets — 7,744 36,490 — 44,234 Current assets associated with discontinued operations — — 11,605 — 11,605 Total current assets 46 416,081 688,553 (538,605 ) 566,075 Property, plant and equipment, net — 303,813 597,764 — 901,577 Investment in affiliates 554,207 870,959 (316,752 ) (1,108,414 ) — Deferred income taxes — 5,493 5,877 — 11,370 Intangible and other assets, net — 32,046 54,325 — 86,371 Long-term assets associated with discontinued operations — — 1,661 — 1,661 Total assets $ 554,253 $ 1,628,392 $ 1,031,428 $ (1,647,019 ) $ 1,567,054 LIABILITIES AND EQUITY Accounts payable, trade $ — $ 133,291 $ 32,453 $ — $ 165,744 Accrued liabilities — 47,012 76,323 — 123,335 Contract liabilities — 82,367 71,116 — 153,483 Intercompany payables 1,432 379,628 157,545 (538,605 ) — Current liabilities associated with discontinued operations — — 14,767 — 14,767 Total current liabilities 1,432 642,298 352,204 (538,605 ) 457,329 Long-term debt — 403,810 — — 403,810 Deferred income taxes — — 6,005 — 6,005 Long-term contract liabilities — 17,226 84,137 — 101,363 Other long-term liabilities — 10,851 28,961 — 39,812 Long-term liabilities associated with discontinued operations — — 5,914 — 5,914 Total liabilities 1,432 1,074,185 477,221 (538,605 ) 1,014,233 Total equity 552,821 554,207 554,207 (1,108,414 ) 552,821 Total liabilities and equity $ 554,253 $ 1,628,392 $ 1,031,428 $ (1,647,019 ) $ 1,567,054 Condensed Consolidating Balance Sheet December 31, 2017 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation ASSETS Cash and cash equivalents $ 397 $ 24,195 $ 24,553 $ — $ 49,145 Restricted cash — — 546 — 546 Accounts receivable, net — 123,362 142,690 — 266,052 Inventory, net — 50,528 57,381 — 107,909 Costs and estimated earnings in excess of billings on uncompleted contracts — 33,439 7,256 — 40,695 Intercompany receivables — 158,296 359,766 (518,062 ) — Other current assets — 6,095 32,612 — 38,707 Current assets held for sale — 15,761 — — 15,761 Current assets associated with discontinued operations — — 23,751 — 23,751 Total current assets 397 411,676 648,555 (518,062 ) 542,566 Property, plant and equipment, net — 288,670 533,609 — 822,279 Investment in affiliates 555,735 831,097 (275,362 ) (1,111,470 ) — Deferred income taxes — 5,452 5,098 — 10,550 Intangible and other assets, net — 12,218 64,762 — 76,980 Long-term assets held for sale — 4,732 — — 4,732 Long-term assets associated with discontinued operations — — 3,700 — 3,700 Total assets $ 556,132 $ 1,553,845 $ 980,362 $ (1,629,532 ) $ 1,460,807 LIABILITIES AND EQUITY Accounts payable, trade $ — $ 115,273 $ 33,471 $ — $ 148,744 Accrued liabilities 57 54,724 59,555 — 114,336 Deferred revenue — 2,162 21,740 — 23,902 Billings on uncompleted contracts in excess of costs and estimated earnings — 89,002 563 — 89,565 Intercompany payables 1,289 359,766 157,007 (518,062 ) — Current liabilities associated with discontinued operations — — 31,971 — 31,971 Total current liabilities 1,346 620,927 304,307 (518,062 ) 408,518 Long-term debt — 368,472 — — 368,472 Deferred income taxes — — 9,746 — 9,746 Long-term deferred revenue — 629 91,856 — 92,485 Other long-term liabilities — 8,082 12,190 — 20,272 Long-term liabilities associated with discontinued operations — — 6,528 — 6,528 Total liabilities 1,346 998,110 424,627 (518,062 ) 906,021 Total equity 554,786 555,735 555,735 (1,111,470 ) 554,786 Total liabilities and equity $ 556,132 $ 1,553,845 $ 980,362 $ (1,629,532 ) $ 1,460,807
Condensed Consolidating Statement of Operations and Comprehensive Income	Condensed Consolidating Statement of Operations and Comprehensive Income Year Ended December 31, 2018 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Revenues $ — $ 927,849 $ 521,879 $ (88,872 ) $ 1,360,856 Cost of sales (excluding depreciation and amortization expense) — 771,731 294,569 (88,872 ) 977,428 Selling, general and administrative 1,285 86,208 90,908 — 178,401 Depreciation and amortization — 35,754 88,168 — 123,922 Long-lived asset impairment — 3,081 777 — 3,858 Restatement related recoveries, net — (276 ) — — (276 ) Restructuring and other charges — — 1,997 — 1,997 Interest expense — 28,763 454 — 29,217 Intercompany charges, net — 6,647 (6,647 ) — — Equity in (income) loss of affiliates (25,986 ) (32,753 ) 6,767 51,972 — Other (income) expense, net (153 ) (4,625 ) 11,262 — 6,484 Income before income taxes 24,854 33,319 33,624 (51,972 ) 39,825 Provision for income taxes — 7,333 32,100 — 39,433 Income from continuing operations 24,854 25,986 1,524 (51,972 ) 392 Income from discontinued operations, net of tax — — 24,462 — 24,462 Net income 24,854 25,986 25,986 (51,972 ) 24,854 Other comprehensive loss (7,476 ) (7,476 ) (7,476 ) 14,952 (7,476 ) Comprehensive income attributable to Exterran stockholders $ 17,378 $ 18,510 $ 18,510 $ (37,020 ) $ 17,378 Condensed Consolidating Statement of Operations and Comprehensive Income Year Ended December 31, 2017 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Revenues $ — $ 838,981 $ 495,262 $ (118,949 ) $ 1,215,294 Cost of sales (excluding depreciation and amortization expense) — 716,002 271,101 (118,949 ) 868,154 Selling, general and administrative 2,327 84,111 89,880 — 176,318 Depreciation and amortization — 35,749 72,075 — 107,824 Long-lived asset impairment — 5,700 — — 5,700 Restatement related charges — 3,250 169 — 3,419 Restructuring and other charges — 2,145 1,044 — 3,189 Interest expense — 32,399 2,427 — 34,826 Intercompany charges, net — 6,355 (6,355 ) — — Equity in (income) loss of affiliates (36,207 ) (85,335 ) 49,128 72,414 — Other (income) expense, net — (2,577 ) 1,602 — (975 ) Income before income taxes 33,880 41,182 14,191 (72,414 ) 16,839 Provision for income taxes — 4,974 17,721 — 22,695 Income (loss) from continuing operations 33,880 36,208 (3,530 ) (72,414 ) (5,856 ) Income from discontinued operations, net of tax — — 39,736 — 39,736 Net income 33,880 36,208 36,206 (72,414 ) 33,880 Other comprehensive loss (1,801 ) (1,801 ) (1,801 ) 3,602 (1,801 ) Comprehensive income attributable to Exterran stockholders $ 32,079 $ 34,407 $ 34,405 $ (68,812 ) $ 32,079 Condensed Consolidating Statement of Operations and Comprehensive Loss Year Ended December 31, 2016 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Revenues $ — $ 493,428 $ 503,643 $ (91,674 ) $ 905,397 Cost of sales (excluding depreciation and amortization expense) — 399,800 288,280 (91,674 ) 596,406 Selling, general and administrative 912 84,550 72,023 — 157,485 Depreciation and amortization — 56,043 76,843 — 132,886 Long-lived asset impairment — 11,414 3,081 — 14,495 Restatement related charges 141 18,574 164 — 18,879 Restructuring and other charges — 18,640 3,398 — 22,038 Interest expense — 33,751 430 — 34,181 Intercompany charges, net — 3,576 (3,576 ) — — Equity in (income) loss of affiliates 226,873 22,869 204,004 (464,149 ) (10,403 ) Other (income) expense, net — (1,056 ) (11,990 ) — (13,046 ) Loss before income taxes (227,926 ) (154,733 ) (129,014 ) 464,149 (47,524 ) Provision for income taxes 11 72,139 52,092 — 124,242 Loss from continuing operations (227,937 ) (226,872 ) (181,106 ) 464,149 (171,766 ) Loss from discontinued operations, net of tax — — (56,171 ) — (56,171 ) Net loss (227,937 ) (226,872 ) (237,277 ) 464,149 (227,937 ) Other comprehensive income 18,310 18,310 18,310 (36,620 ) 18,310 Comprehensive loss attributable to Exterran stockholders $ (209,627 ) $ (208,562 ) $ (218,967 ) $ 427,529 $ (209,627 )
Condensed Consolidating Statement of Cash Flows	Condensed Consolidating Statement of Cash Flows Year Ended December 31, 2018 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Cash flows from operating activities: Net cash provided by (used in) continuing operations $ (494 ) $ 21,192 $ 132,598 $ — $ 153,296 Net cash provided by discontinued operations — — 4,004 — 4,004 Net cash provided by (used in) operating activities (494 ) 21,192 136,602 — 157,300 Cash flows from investing activities: Capital expenditures — (91,027 ) (124,081 ) — (215,108 ) Proceeds from sale of property, plant and equipment — 106 2,424 — 2,530 Proceeds from sale of business — 5,000 — — 5,000 Intercompany transfers — (143 ) (34,965 ) 35,108 — Net cash used in continuing operations — (86,064 ) (156,622 ) 35,108 (207,578 ) Net cash provided by discontinued operations — — 17,009 — 17,009 Net cash used in investing activities — (86,064 ) (139,613 ) 35,108 (190,569 ) Cash flows from financing activities: Proceeds from borrowings of debt — 585,014 — — 585,014 Repayments of debt — (550,497 ) — — (550,497 ) Intercompany transfers 143 34,965 — (35,108 ) — Cash transfer to Archrock, Inc. — (18,744 ) — — (18,744 ) Payments for debt issuance costs — (4,801 ) — — (4,801 ) Proceeds from stock options exercised — 548 — — 548 Purchases of treasury stock — (4,623 ) — — (4,623 ) Net cash provided by financing activities 143 41,862 — (35,108 ) 6,897 Effect of exchange rate changes on cash, cash equivalents and restricted cash — — (3,841 ) — (3,841 ) Net decrease in cash, cash equivalents and restricted cash (351 ) (23,010 ) (6,852 ) — (30,213 ) Cash, cash equivalents and restricted cash at beginning of period 397 24,195 25,099 — 49,691 Cash, cash equivalents and restricted cash at end of period $ 46 $ 1,185 $ 18,247 $ — $ 19,478 Condensed Consolidating Statement of Cash Flows Year Ended December 31, 2017 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Cash flows from operating activities: Net cash provided by (used in) continuing operations $ (476 ) $ 74,003 $ 76,893 $ — $ 150,420 Net cash used in discontinued operations — — (1,794 ) — (1,794 ) Net cash provided by (used in) operating activities (476 ) 74,003 75,099 — 148,626 Cash flows from investing activities: Capital expenditures — (54,527 ) (77,146 ) — (131,673 ) Proceeds from sale of property, plant and equipment — 3,809 5,057 — 8,866 Proceeds from sale of business — 894 — — 894 Intercompany transfers — (742 ) (16,267 ) 17,009 — Net cash used in continuing operations — (50,566 ) (88,356 ) 17,009 (121,913 ) Net cash provided by discontinued operations — — 19,575 — 19,575 Net cash used in investing activities — (50,566 ) (68,781 ) 17,009 (102,338 ) Cash flows from financing activities: Proceeds from borrowings of debt — 501,088 — — 501,088 Repayments of debt — (476,503 ) — — (476,503 ) Intercompany transfers 742 16,267 — (17,009 ) — Cash transfer to Archrock, Inc. — (44,720 ) — — (44,720 ) Payments for debt issuance costs — (7,911 ) — — (7,911 ) Proceeds from stock options exercised — 684 — — 684 Purchases of treasury stock — (4,792 ) — — (4,792 ) Net cash provided by (used in) financing activities 742 (15,887 ) — (17,009 ) (32,154 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — — (792 ) — (792 ) Net increase in cash, cash equivalents and restricted cash 266 7,550 5,526 — 13,342 Cash, cash equivalents and restricted cash at beginning of period 131 16,645 19,573 — 36,349 Cash, cash equivalents and restricted cash at end of period $ 397 $ 24,195 $ 25,099 $ — $ 49,691 Condensed Consolidating Statement of Cash Flows Year Ended December 31, 2016 (In thousands) Non- Guarantor Subsidiaries Parent Guarantor Issuers Eliminations Consolidation Cash flows from operating activities: Net cash provided by (used in) continuing operations $ (53 ) $ 84,164 $ 178,378 $ — $ 262,489 Net cash provided by discontinued operations — — 1,016 — 1,016 Net cash provided by (used in) operating activities (53 ) 84,164 179,394 — 263,505 Cash flows from investing activities: Capital expenditures — (26,670 ) (47,000 ) — (73,670 ) Proceeds from sale of property, plant and equipment — 1,488 1,326 — 2,814 Intercompany transfers — (147 ) (188,180 ) 188,327 — Return of investments in non-consolidated affiliates — — 10,403 — 10,403 Settlement of foreign currency derivatives — (709 ) — — (709 ) Net cash used in continuing operations — (26,038 ) (223,451 ) 188,327 (61,162 ) Net cash provided by discontinued operations — — 36,079 — 36,079 Net cash used in investing activities — (26,038 ) (187,372 ) 188,327 (25,083 ) Cash flows from financing activities: Proceeds from borrowings of debt — 430,758 — — 430,758 Repayments of debt — (610,261 ) — — (610,261 ) Intercompany transfers 147 188,180 — (188,327 ) — Cash transfer to Archrock, Inc. — (49,176 ) — — (49,176 ) Payments for debt issuance costs — (779 ) — — (779 ) Proceeds from stock options exercised — 786 — — 786 Purchases of treasury stock — (2,091 ) — — (2,091 ) Net cash provided by (used in) financing activities 147 (42,583 ) — (188,327 ) (230,763 ) Effect of exchange rate changes on cash, cash equivalents and restricted cash — — (1,832 ) — (1,832 ) Net increase (decrease) in cash, cash equivalents and restricted cash 94 15,543 (9,810 ) — 5,827 Cash, cash equivalents and restricted cash at beginning of period 37 1,102 29,383 — 30,522 Cash, cash equivalents and restricted cash at end of period $ 131 $ 16,645 $ 19,573 $ — $ 36,349

Description of Business and B_2

Description of Business and Basis of Presentation (Details)	12 Months Ended
	Dec. 31, 2018business_line
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business lines	3

Significant Accounting Polici_4

Significant Accounting Policies - Concentrations of Credit Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Minimum period after receivable balances are past due that significant accounts are reviewed individually for collectability (greater than)	90 days
Bad debt expense	$ 0.1	$ 0.9	$ 3

Significant Accounting Polici_5

Significant Accounting Policies - Schedule of Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2018
Compression equipment, processing facilities and other fleet assets | Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Compression equipment, processing facilities and other fleet assets | Maximum
Property, Plant and Equipment [Line Items]
Useful life	23 years
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Useful life	20 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Useful life	35 years
Transportation, shop equipment and other | Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Transportation, shop equipment and other | Maximum
Property, Plant and Equipment [Line Items]
Useful life	10 years

Significant Accounting Polici_6

Significant Accounting Policies - Computer Software (Details) - Computer software	12 Months Ended
	Dec. 31, 2018
Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Useful life	5 years

Significant Accounting Polici_7

Significant Accounting Policies - Demobilization (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accretion expense	$ 2.6

Significant Accounting Polici_8

Significant Accounting Policies - Foreign Currency Translation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2016
Accounting Policies [Abstract]
Foreign currency (gains) losses	$ 8,500	$ 700	$ (6,500)
Non-cash (gains) losses	$ 5,241	$ (516)	(9,268)
Foreign currency exchange contract
Derivative [Line Items]
Total notional value				$ 11,300
Loss recognized on forward currency exchange contracts			$ 700

Significant Accounting Polici_9

Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated deficit	$ (208,677)				$ (223,510)				$ (208,677)	$ (223,510)		$ (233,531)
Revenue	332,153	$ 334,849	$ 343,471	$ 350,383	337,689	$ 314,479	$ 317,701	$ 245,425	1,360,856	1,215,294	$ 905,397
Restricted cash	178				546				178	546	700	546
Cash, cash equivalents, and restricted cash	19,478				49,691				19,478	49,691	36,349		$ 30,522
Cash and cash equivalents	19,300				49,145				19,300	49,145	$ 35,700	49,145
Total assets	1,567,054				1,460,807				1,567,054	1,460,807		1,482,480
Liabilities	1,014,233				$ 906,021				1,014,233	$ 906,021		937,715
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated deficit	2,404								2,404			(10,021)
Revenue									3,700
Restricted cash												0
Cash and cash equivalents												0
Total assets	(20,944)								(20,944)			21,673
Liabilities	(23,348)								(23,348)			$ 31,694
Estimated impact | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total assets	30,000								30,000
Liabilities	$ 30,000								$ 30,000

Significant Accounting Polic_10

Significant Accounting Policies - Effect of 2014-09 (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents	$ 19,300	$ 49,145	$ 49,145	$ 35,700
Restricted cash	178	546	546	700
Accounts receivable, net of allowance	248,467	261,251	266,052
Inventory, net	150,689	107,785	107,909
Costs and estimated earnings in excess of billings on uncompleted contracts	0	0	40,695
Contract assets	91,602	50,824	0
Other current assets	44,234	38,528	38,707
Current assets held for sale	0	15,761	15,761
Current assets associated with discontinued operations	11,605	23,751	23,751
Total current assets	566,075	547,591	542,566
Property, plant and equipment, net	901,577	820,250	822,279	790,922
Deferred income taxes	11,370	10,954	10,550
Intangible and other assets, net	86,371	95,253	76,980
Long-term assets held for sale	0	4,732	4,732
Long-term assets associated with discontinued operations	1,661	3,700	3,700
Total assets	1,567,054	1,482,480	1,460,807
Accounts payable, trade	165,744	148,744	148,744
Accrued liabilities	123,335	130,380	114,336
Deferred revenue	0	0	23,902
Billings on uncompleted contracts in excess of costs and estimated earnings	0	0	89,565
Contract liabilities	153,483	112,244	0
Current liabilities associated with discontinued operations	14,767	31,971	31,971
Total current liabilities	457,329	423,339	408,518
Long-term debt	403,810	368,472	368,472
Deferred income taxes	6,005	7,838	9,746
Long-term deferred revenue	0	0	92,485
Long-term contract liabilities	101,363	89,004	0
Other long-term liabilities	39,812	42,534	20,272
Long-term liabilities associated with discontinued operations	5,914	6,528	6,528
Total liabilities	1,014,233	937,715	906,021
Preferred stock	0	0	0
Common stock	369	362	362
Additional paid-in capital	734,458	739,164	739,164
Accumulated deficit	(208,677)	(233,531)	(223,510)
Treasury stock	(11,560)	(6,937)	(6,937)
Accumulated other comprehensive income	38,231	45,707	45,707
Total stockholders’ equity (Note 17)	552,821	544,765	554,786	$ 556,771	$ 805,936
Total liabilities and stockholders’ equity	1,567,054	1,482,480	1,460,807
Calculated under Revenue Guidance in Effect before Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents			49,145
Restricted cash			546
Accounts receivable, net of allowance			266,052
Inventory, net	151,992		107,909
Costs and estimated earnings in excess of billings on uncompleted contracts			40,695
Contract assets	71,488		0
Other current assets	58,666		38,707
Current assets held for sale			15,761
Current assets associated with discontinued operations			23,751
Total current assets			542,566
Property, plant and equipment, net	903,432		822,279
Deferred income taxes	10,398		10,550
Intangible and other assets, net	68,923		76,980
Long-term assets held for sale			4,732
Long-term assets associated with discontinued operations			3,700
Total assets	1,546,110		1,460,807
Accounts payable, trade			148,744
Accrued liabilities	109,062		114,336
Deferred revenue			23,902
Billings on uncompleted contracts in excess of costs and estimated earnings			89,565
Contract liabilities	155,830		0
Current liabilities associated with discontinued operations			31,971
Total current liabilities			408,518
Long-term debt			368,472
Deferred income taxes	5,973		9,746
Long-term deferred revenue			92,485
Long-term contract liabilities	104,875		0
Other long-term liabilities	24,910		20,272
Long-term liabilities associated with discontinued operations			6,528
Total liabilities	990,885		906,021
Preferred stock			0
Common stock			362
Additional paid-in capital			739,164
Accumulated deficit	(206,273)		(223,510)
Treasury stock			(6,937)
Accumulated other comprehensive income			45,707
Total stockholders’ equity (Note 17)	555,225		554,786
Total liabilities and stockholders’ equity	1,546,110		$ 1,460,807
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents		0
Restricted cash		0
Accounts receivable, net of allowance		(4,801)
Inventory, net	1,303	(124)
Costs and estimated earnings in excess of billings on uncompleted contracts		(40,695)
Contract assets	(20,114)	50,824
Other current assets	14,432	(179)
Current assets held for sale		0
Current assets associated with discontinued operations		0
Total current assets		5,025
Property, plant and equipment, net	1,855	(2,029)
Deferred income taxes	(972)	404
Intangible and other assets, net	(17,448)	18,273
Long-term assets held for sale		0
Long-term assets associated with discontinued operations		0
Total assets	(20,944)	21,673
Accounts payable, trade		0
Accrued liabilities	(14,273)	16,044
Deferred revenue		(23,902)
Billings on uncompleted contracts in excess of costs and estimated earnings		(89,565)
Contract liabilities	2,347	112,244
Current liabilities associated with discontinued operations		0
Total current liabilities		14,821
Long-term debt		0
Deferred income taxes	(32)	(1,908)
Long-term deferred revenue		(92,485)
Long-term contract liabilities	3,512	89,004
Other long-term liabilities	(14,902)	22,262
Long-term liabilities associated with discontinued operations		0
Total liabilities	(23,348)	31,694
Preferred stock		0
Common stock		0
Additional paid-in capital		0
Accumulated deficit	2,404	(10,021)
Treasury stock		0
Accumulated other comprehensive income		0
Total stockholders’ equity (Note 17)	2,404	(10,021)
Total liabilities and stockholders’ equity	$ (20,944)	$ 21,673

Revenue - Narrative (Details)

Revenue - Narrative (Details) $ in Thousands

3 Months Ended

12 Months Ended

Dec. 31, 2018USD ($)contract

Sep. 30, 2018USD ($)

Jun. 30, 2018USD ($)

Mar. 31, 2018USD ($)

Dec. 31, 2017USD ($)

Sep. 30, 2017USD ($)

Jun. 30, 2017USD ($)

Mar. 31, 2017USD ($)

Dec. 31, 2018USD ($)contract

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Jan. 01, 2018USD ($)

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Accumulated deficit

$ 208,677

$ 223,510

$ 208,677

$ 223,510

$ 233,531

Revenue

$ 332,153

$ 334,849

$ 343,471

$ 350,383

337,689

$ 314,479

$ 317,701

$ 245,425

$ 1,360,856

1,215,294

$ 905,397

Number of contracts signed in current year | contract

3

3

Remaining performance obligation percentage, operating lease

10.00%

10.00%

Remaining performance obligation percentage, operating lease, next fiscal period and thereafter

18.00%

18.00%

Remaining performance obligation percentage, operating lease, subsequent periods

14.00%

14.00%

Revenue recognized from contract operations services including revenue deferred in previous periods

$ 20,300

Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Accumulated deficit

$ (2,404)

(2,404)

$ 10,021

Revenue

3,700

Contract operations

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Revenue

360,973

375,269

392,463

Unsatisfied performance obligation

1,400,000

1,400,000

Performance obligation satisfied in previous period

4,300

Contract operations | Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Revenue

$ (2,079)

Contract operations | Minimum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Contract term (years)

3 years

Contract operations | Maximum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Contract term (years)

12 years

Aftermarket Services

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Revenue

$ 120,676

107,063

120,550

Aftermarket Services | Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Revenue

(1,662)

Product sales

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Revenue

879,207

732,962

$ 392,384

Unsatisfied performance obligation

706,000

706,000

Performance obligation satisfied in previous period

423,500

Performance obligation satisfied in previous period included in billings in excess of cost

$ 84,300

Operation and Maintenance Services | Aftermarket Services

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Contract term in excess of (years)

5 years

Operation and Maintenance Services | Aftermarket Services | Minimum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Contract term (years)

1 year

Operation and Maintenance Services | Aftermarket Services | Maximum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Contract term (years)

4 years

Other Services | Aftermarket Services

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Contract term (years)

6 months

Compression Equipment | Product sales | Minimum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Product manufacturing period (months)

3 months

Compression Equipment | Product sales | Maximum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Product manufacturing period (months)

12 months

Processing and Treating Equipment | Product sales | Minimum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Product manufacturing period (months)

6 months

Processing and Treating Equipment | Product sales | Maximum

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Product manufacturing period (months)

24 months

Product Sales Business

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Unsatisfied performance obligation

$ 12,000

Contract fulfillment costs

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Capitalized costs

6,580

0

$ 6,580

0

Contract obtainment costs

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Capitalized costs

$ 6,739

$ 0

6,739

$ 0

Amortization of capitalized costs

$ 1,400

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue by Products and Services (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Revenue	$ 332,153	$ 334,849	$ 343,471	$ 350,383	$ 337,689	$ 314,479	$ 317,701	$ 245,425	$ 1,360,856	$ 1,215,294	$ 905,397
Contract Operations
Disaggregation of Revenue [Line Items]
Revenue									360,973	375,269	392,463
Contract Operations | Revenue Recognized Over Time
Disaggregation of Revenue [Line Items]
Revenue									360,973
Aftermarket Services
Disaggregation of Revenue [Line Items]
Revenue									120,676	107,063	120,550
Aftermarket Services | Operation and Maintenance Services | Revenue Recognized Over Time
Disaggregation of Revenue [Line Items]
Revenue									57,123
Aftermarket Services | Part Sales | Revenue Recognized at a Point in Time
Disaggregation of Revenue [Line Items]
Revenue									43,928
Aftermarket Services | Other Services | Revenue Recognized Over Time
Disaggregation of Revenue [Line Items]
Revenue									19,625
Product sales
Disaggregation of Revenue [Line Items]
Revenue									879,207	$ 732,962	$ 392,384
Product sales | Compression Equipment | Revenue Recognized Over Time
Disaggregation of Revenue [Line Items]
Revenue									476,480
Product sales | Processing and Treating Equipment | Revenue Recognized Over Time
Disaggregation of Revenue [Line Items]
Revenue									368,137
Product sales | Production Equipment | Revenue Recognized at a Point in Time
Disaggregation of Revenue [Line Items]
Revenue									18,932
Product sales | Other Product Sales | Revenue Recognized over Time and at a Point in Time
Disaggregation of Revenue [Line Items]
Revenue									$ 15,658

Revenue - Disaggregation of R_2

Revenue - Disaggregation of Revenue by Geographical Regions (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Revenue	$ 332,153	$ 334,849	$ 343,471	$ 350,383	$ 337,689	$ 314,479	$ 317,701	$ 245,425	$ 1,360,856	$ 1,215,294	$ 905,397
North America
Disaggregation of Revenue [Line Items]
Revenue									858,934
Latin America
Disaggregation of Revenue [Line Items]
Revenue									274,414
Middle East and Africa
Disaggregation of Revenue [Line Items]
Revenue									163,093
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue									$ 64,415

Revenue - Performance Obligatio

Revenue - Performance Obligations Narrative (Details) $ in Millions	Dec. 31, 2018USD ($)
Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unsatisfied performance obligation	$ 1,400
Product sales
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unsatisfied performance obligation	$ 706
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01 | Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligation period (years)	1 year
Unsatisfied performance obligation	$ 292
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01 | Product sales
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligation period (years)	1 year
Unsatisfied performance obligation	$ 690
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 | Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligation period (years)	1 year
Unsatisfied performance obligation	$ 197
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 | Product sales
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligation period (years)	1 year
Unsatisfied performance obligation	$ 16
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligation period (years)	1 year
Unsatisfied performance obligation	$ 203
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligation period (years)	1 year
Unsatisfied performance obligation	$ 165
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Performance obligation period (years)	1 year
Unsatisfied performance obligation	$ 148

Revenue - Contract Assets and L

Revenue - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 248,467	$ 261,251	$ 266,052
Current contract assets	91,602	50,824	0
Long-term contract assets	5,430	11,835	8,500
Current contract liabilities	153,483	112,244	0
Long-term contract liabilities	$ 101,363	$ 89,004	$ 0

Revenue - Impact of New Revenue

Revenue - Impact of New Revenue Recognition Standard - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventory, net	$ 150,689	$ 107,785	$ 107,909
Contract assets	91,602	50,824	0
Other current assets	44,234	38,528	38,707
Property, plant and equipment, net	901,577	820,250	822,279	$ 790,922
Deferred income taxes	11,370	10,954	10,550
Intangible and other assets, net	86,371	95,253	76,980
Total assets	1,567,054	1,482,480	1,460,807
Accrued liabilities	123,335	130,380	114,336
Contract liabilities	153,483	112,244	0
Deferred income taxes	6,005	7,838	9,746
Long-term contract liabilities	101,363	89,004	0
Other long-term liabilities	39,812	42,534	20,272
Total liabilities	1,014,233	937,715	906,021
Accumulated deficit	(208,677)	(233,531)	(223,510)
Total stockholders’ equity	552,821	544,765	554,786	$ 556,771	$ 805,936
Total liabilities and stockholders’ equity	1,567,054	1,482,480	1,460,807
Calculated under Revenue Guidance in Effect before Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventory, net	151,992		107,909
Contract assets	71,488		0
Other current assets	58,666		38,707
Property, plant and equipment, net	903,432		822,279
Deferred income taxes	10,398		10,550
Intangible and other assets, net	68,923		76,980
Total assets	1,546,110		1,460,807
Accrued liabilities	109,062		114,336
Contract liabilities	155,830		0
Deferred income taxes	5,973		9,746
Long-term contract liabilities	104,875		0
Other long-term liabilities	24,910		20,272
Total liabilities	990,885		906,021
Accumulated deficit	(206,273)		(223,510)
Total stockholders’ equity	555,225		554,786
Total liabilities and stockholders’ equity	1,546,110		$ 1,460,807
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventory, net	1,303	(124)
Contract assets	(20,114)	50,824
Other current assets	14,432	(179)
Property, plant and equipment, net	1,855	(2,029)
Deferred income taxes	(972)	404
Intangible and other assets, net	(17,448)	18,273
Total assets	(20,944)	21,673
Accrued liabilities	(14,273)	16,044
Contract liabilities	2,347	112,244
Deferred income taxes	(32)	(1,908)
Long-term contract liabilities	3,512	89,004
Other long-term liabilities	(14,902)	22,262
Total liabilities	(23,348)	31,694
Accumulated deficit	2,404	(10,021)
Total stockholders’ equity	2,404	(10,021)
Total liabilities and stockholders’ equity	$ (20,944)	$ 21,673

Revenue - Impact of New Reven_2

Revenue - Impact of New Revenue Recognition Standard - Income Statement (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue	$ 332,153	$ 334,849	$ 343,471	$ 350,383	$ 337,689	$ 314,479	$ 317,701	$ 245,425	$ 1,360,856	$ 1,215,294	$ 905,397
Cost of sales (excluding depreciation and amortization expense):									977,428	868,154	596,406
Selling, general and administrative									178,401	176,318	157,485
Depreciation and amortization									123,922	107,824	132,886
Income (loss) from continuing operations									39,825	16,839	(47,524)
Provision for income taxes									39,433	22,695	124,242
Income (loss) from continuing operations	(5,273)	3,196	(1,469)	3,938	2,083	1,214	3,170	(12,323)	392	(5,856)	(171,766)
Net income (loss)	$ 14,073	$ 5,369	$ 75	$ 5,337	$ 6,662	$ 3,353	$ 3,544	$ 20,321	$ 24,854	$ 33,880	$ (227,937)
Net income per share, basic (in dollars per share)	$ 0.40	$ 0.15	$ 0	$ 0.15	$ 0.18	$ 0.09	$ 0.10	$ 0.58	$ 0.68	$ 0.97	$ (6.59)
Net income per share, diluted (in dollars per share)	$ 0.40	$ 0.15	$ 0	$ 0.15	$ 0.18	$ 0.09	$ 0.10	$ 0.58	$ 0.68	$ 0.97	$ (6.59)
Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue									$ 360,973	$ 375,269	$ 392,463
Cost of sales (excluding depreciation and amortization expense):									122,138	133,380	143,670
Aftermarket services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue									120,676	107,063	120,550
Cost of sales (excluding depreciation and amortization expense):									89,666	$ 78,221	$ 87,342
Calculated under Revenue Guidance in Effect before Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Selling, general and administrative									185,140
Depreciation and amortization									121,454
Income (loss) from continuing operations									30,747
Provision for income taxes									37,972
Income (loss) from continuing operations									(7,225)
Net income (loss)									$ 17,237
Net income per share, basic (in dollars per share)									$ 0.49
Net income per share, diluted (in dollars per share)									$ 0.49
Calculated under Revenue Guidance in Effect before Topic 606 | Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue									$ 358,894
Cost of sales (excluding depreciation and amortization expense):									124,482
Calculated under Revenue Guidance in Effect before Topic 606 | Aftermarket services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue									119,014
Cost of sales (excluding depreciation and amortization expense):									88,388
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue									3,700
Selling, general and administrative									6,739
Depreciation and amortization									(2,468)
Income (loss) from continuing operations									(9,078)
Provision for income taxes									(1,461)
Income (loss) from continuing operations									(7,617)
Net income (loss)									$ (7,617)
Net income per share, basic (in dollars per share)									$ (0.19)
Net income per share, diluted (in dollars per share)									$ (0.19)
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606 | Contract operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue									$ (2,079)
Cost of sales (excluding depreciation and amortization expense):									2,344
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606 | Aftermarket services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue									(1,662)
Cost of sales (excluding depreciation and amortization expense):									$ (1,278)

Revenue - Impact of New Reven_3

Revenue - Impact of New Revenue Recognition Standard - Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	$ 14,073	$ 5,369	$ 75	$ 5,337	$ 6,662	$ 3,353	$ 3,544	$ 20,321	$ 24,854	$ 33,880	$ (227,937)
Depreciation and amortization									123,922	107,824	132,886
Deferred income tax provision									1,537	(3,193)	71,090
Inventory									(59,676)	20,594	49,736
Contract assets									(34,571)	0	0
Other current assets									5,045	(1,541)	(7,074)
Accounts payable and other liabilities									13,801	62,029	2,078
Contract liabilities									62,934	0	0
Other									3,059	(14,483)	(857)
Net cash provided by continuing operations									153,296	$ 150,420	$ 262,489
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)									(7,617)
Depreciation and amortization									(2,468)
Deferred income tax provision									(1,461)
Inventory									(1,179)
Contract assets									2,477
Other current assets									(951)
Accounts payable and other liabilities									9,894
Contract liabilities									1,414
Other									(109)
Net cash provided by continuing operations									0
Calculated under Revenue Guidance in Effect before Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)									17,237
Depreciation and amortization									121,454
Deferred income tax provision									76
Inventory									(60,855)
Contract assets									(32,094)
Other current assets									4,094
Accounts payable and other liabilities									23,695
Contract liabilities									64,348
Other									2,950
Net cash provided by continuing operations									$ 153,296

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Aug. 31, 2016	Aug. 31, 2012	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liabilities			$ 1,014,233	$ 906,021		$ 937,715
Proceeds from sale of businesses			5,000	894	$ 0
Long-lived asset impairment			3,858	5,700	14,495
Venezuela
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price of previously nationalized assets		$ 441,700
Initial payment in cash at closing		176,700
Remitted amount		$ 50,000
Installment payments, including an annual charge			19,800	19,700	38,800
Disposed of by sale | Belleli CPE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses	$ 5,500
Long-lived asset impairment					68,800
Archrock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash transferred to Archrock pursuant to the separation and distribution agreement			$ 18,700	$ 19,700	$ 38,800

Discontinued Operations - Summa

Discontinued Operations - Summary of Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax	$ 19,346	$ 2,173	$ 1,544	$ 1,399	$ 4,579	$ 2,139	$ 374	$ 32,644	$ 24,462	$ 39,736	$ (56,171)
Disposed of by sale | Venezuela
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue									0	0	0
Cost of sales (excluding depreciation and amortization expense)									0	0	0
Selling, general and administrative									131	131	54
Depreciation and amortization									0	0	0
Long-lived asset impairment									0	0	0
Recovery attributable to expropriation									(16,564)	(16,514)	(33,124)
Restructuring related charges (recoveries), net									0	0	0
Interest expense									0	0	0
Other (income) expense, net									(3,249)	(3,157)	(5,966)
Provision for income taxes									0	0	0
Income (loss) from discontinued operations, net of tax									19,682	19,540	39,036
Disposed of by sale | Belleli CPE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue											28,469
Cost of sales (excluding depreciation and amortization expense)											27,323
Selling, general and administrative											1,494
Depreciation and amortization											861
Long-lived asset impairment											68,780
Recovery attributable to expropriation											0
Restructuring related charges (recoveries), net											2,735
Interest expense											17
Other (income) expense, net											(191)
Provision for income taxes											57
Income (loss) from discontinued operations, net of tax											(72,607)
Exit of business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue									16,274	72,693	152,325
Cost of sales (excluding depreciation and amortization expense)									10,271	41,329	153,645
Selling, general and administrative									1,783	5,393	10,048
Depreciation and amortization									480	5,653	5,949
Long-lived asset impairment									0	0	69,431
Recovery attributable to expropriation									(16,564)	(16,514)	(33,124)
Restructuring related charges (recoveries), net									0	(439)	8,154
Interest expense									0	0	17
Other (income) expense, net									(4,591)	(2,618)	(6,199)
Provision for income taxes									433	153	575
Income (loss) from discontinued operations, net of tax									24,462	39,736	(56,171)
Exit of business | Belleli EPC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue									16,274	72,693	123,856
Cost of sales (excluding depreciation and amortization expense)									10,271	41,329	126,322
Selling, general and administrative									1,652	5,262	8,500
Depreciation and amortization									480	5,653	5,088
Long-lived asset impairment									0	0	651
Recovery attributable to expropriation									0	0	0
Restructuring related charges (recoveries), net									0	(439)	5,419
Interest expense									0	0	0
Other (income) expense, net									(1,342)	539	(42)
Provision for income taxes									433	153	518
Income (loss) from discontinued operations, net of tax									$ 4,780	$ 20,196	$ (22,600)

Discontinued Operations - Sum_2

Discontinued Operations - Summary of Balance Sheet Data (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total current assets associated with discontinued operations	$ 11,605	$ 23,751	$ 23,751
Total current liabilities associated with discontinued operations	14,767	$ 31,971	31,971
Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash	3		3
Accounts receivable	11,509		14,770
Costs and estimated earnings in excess of billings on uncompleted contracts	0		7,786
Other current assets	93		1,192
Total current assets associated with discontinued operations	11,605		23,751
Property, plant and equipment, net	28		1,054
Intangible and other assets, net	1,633		2,646
Total assets associated with discontinued operations	13,266		27,451
Accounts payable	4,382		9,253
Accrued liabilities	7,843		15,676
Billings on uncompleted contracts in excess of costs and estimated earnings	2,542		7,042
Total current liabilities associated with discontinued operations	14,767		31,971
Other long-term liabilities	5,914		6,528
Total liabilities associated with discontinued operations	20,681		38,499
Venezuela | Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash	3		3
Accounts receivable	0		0
Costs and estimated earnings in excess of billings on uncompleted contracts	0		0
Other current assets	7		2
Total current assets associated with discontinued operations	10		5
Property, plant and equipment, net	0		0
Intangible and other assets, net	0		0
Total assets associated with discontinued operations	10		5
Accounts payable	0		0
Accrued liabilities	12		59
Billings on uncompleted contracts in excess of costs and estimated earnings	0		0
Total current liabilities associated with discontinued operations	12		59
Other long-term liabilities	0		1
Total liabilities associated with discontinued operations	12		60
Belleli EPC | Exit of business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash	0		0
Accounts receivable	11,509		14,770
Costs and estimated earnings in excess of billings on uncompleted contracts	0		7,786
Other current assets	86		1,190
Total current assets associated with discontinued operations	11,595		23,746
Property, plant and equipment, net	28		1,054
Intangible and other assets, net	1,633		2,646
Total assets associated with discontinued operations	13,256		27,446
Accounts payable	4,382		9,253
Accrued liabilities	7,831		15,617
Billings on uncompleted contracts in excess of costs and estimated earnings	2,542		7,042
Total current liabilities associated with discontinued operations	14,755		31,912
Other long-term liabilities	5,914		6,527
Total liabilities associated with discontinued operations	$ 20,669		$ 38,439

Inventory, Net - Schedule of In

Inventory, Net - Schedule of Inventory, Net of Reserves (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Parts and supplies	$ 92,016		$ 79,803
Work in progress	49,547		21,853
Finished goods	9,126		6,253
Inventory, net	$ 150,689	$ 107,785	$ 107,909

Inventory, Net - Narrative (Det

Inventory, Net - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Inventory write-downs and reserves	$ 0.1	$ 1.3	$ 0.8
Inventory reserves	$ 10	$ 10.4

Property, Plant and Equipment_3

Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,999,466		$ 1,846,150
Accumulated depreciation	(1,097,889)		(1,023,871)
Property, plant and equipment, net	901,577	$ 820,250	822,279	$ 790,922
Compression equipment, processing facilities and other fleet assets
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,713,153		1,577,052
Land and buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	101,571		96,463
Transportation and shop equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	82,960		82,240
Computer software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	54,572		50,299
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 47,210		$ 40,096

Property, Plant and Equipment_4

Property, Plant and Equipment, Net - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Change in depreciation			$ 8.9	$ 1.2
Change in diluted net income (USD per share)			$ 0.25	$ 0.03
Depreciation expense			$ 118.9	$ 105	$ 129.2
Assets under construction	$ 130.4		237.7	130.4
Capitalized interest related to construction in process			$ 9.9	$ 3.4	$ 0.3
Service Life | Compression Equipment
Property, Plant and Equipment [Line Items]
Change in useful life (years)	23 years	30 years
Salvage Value | Compression Equipment
Property, Plant and Equipment [Line Items]
Salvage value (percentage)	15.00%	20.00%

Intangible and Other Assets, _3

Intangible and Other Assets, Net - Schedule of Intangible and Other Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 8,174		$ 9,861
Deferred financing costs	7,237		4,786
Long-term non-income tax receivable	8,621		14,560
Long-term income tax credits	2,412		11,344
Long-term notes receivable	20,399		3,004
Long-term deposits	13,492		11,648
Long-term contract assets	5,430	$ 11,835	8,500
Other	7,287		13,277
Intangibles and other assets, net	86,371	$ 95,253	76,980
Contract fulfillment costs
Finite-Lived Intangible Assets [Line Items]
Capitalized costs	6,580		0
Contract obtainment costs
Finite-Lived Intangible Assets [Line Items]
Capitalized costs	$ 6,739		$ 0

Intangible and Other Assets, _4

Intangible and Other Assets, Net - Summary of Intangible Assets and Deferred Financing Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 137,249	$ 133,551
Accumulated Amortization	(121,838)	(118,904)
Deferred financing costs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,164	8,368
Accumulated Amortization	$ (5,927)	(3,582)
Marketing related (20 year life)
Finite-Lived Intangible Assets [Line Items]
Useful life	20 years
Gross Carrying Amount	$ 542	629
Accumulated Amortization	(542)	(589)
Customer related (17-20 year life)
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	75,331	76,946
Accumulated Amortization	$ (68,423)	(67,342)
Customer related (17-20 year life) | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	17 years
Customer related (17-20 year life) | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	20 years
Technology based (20 year life)
Finite-Lived Intangible Assets [Line Items]
Useful life	20 years
Gross Carrying Amount	$ 3,153	3,655
Accumulated Amortization	(3,153)	(3,438)
Contract based (2-11 year life)
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	45,059	43,953
Accumulated Amortization	$ (43,793)	$ (43,953)
Contract based (2-11 year life) | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	2 years
Contract based (2-11 year life) | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	11 years

Intangible and Other Assets, _5

Intangible and Other Assets, Net - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization of deferred financing costs	$ 3,347	$ 4,714	$ 4,584
Amortization of intangible assets	2,400	2,800	3,700
Credit Agreement | Revolving credit facility
Finite-Lived Intangible Assets [Line Items]
Amortization of deferred financing costs	$ 2,300	$ 1,700	$ 1,600

Intangible and Other Assets, _6

Intangible and Other Assets, Net - Estimated Future Intangible Amortization Expense (Details) $ in Thousands	Dec. 31, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2,019	$ 2,160
2,020	1,852
2,021	1,494
2,022	1,074
2,023	899
Thereafter	695
Total	$ 8,174

Sale of PEQ Assets (Details)

Sale of PEQ Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Long Lived Asset Impairments [Line Items]
Loss on sale of businesses	$ 1,714	$ 111	$ 0
Product Sales Business | Assets Held for Sale
Long Lived Asset Impairments [Line Items]
Asset impairment	1,800	$ 2,100
Loss on sale of businesses	$ 1,700

Investments in Non-Consolidat_2

Investments in Non-Consolidated Affiliates (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2016	Dec. 31, 2018
Archrock
Schedule of Equity Method Investments [Line Items]
Cash transferred to Archrock pursuant to the separation and distribution agreement		$ 10.4
PIGAP II
Schedule of Equity Method Investments [Line Items]
Ownership Interest (as a percent)			30.00%
El Furrial
Schedule of Equity Method Investments [Line Items]
Ownership Interest (as a percent)			33.30%
Venezuela
Schedule of Equity Method Investments [Line Items]
Initial payment received	$ 37.6
Installment payments, including annual charges		$ 10.4
Remaining principal amount due			$ 4

Accrued Liabilities - Schedule

Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Accrued salaries and other benefits	$ 46,836		$ 53,492
Accrued income and other taxes	31,862		26,503
Accrued demobilization costs	14,839		0
Accrued warranty expense	2,191		3,190
Accrued interest	5,778		6,000
Accrued other liabilities	21,829		25,151
Accrued liabilities	$ 123,335	$ 130,380	$ 114,336

Accrued Liabilities - Narrative

Accrued Liabilities - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Warranty expense	$ 1.9	$ 1.9	$ 1.6

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Apr. 30, 2017
Debt Instrument [Line Items]
Total debt	$ 404,259		$ 368,921
Less: Amounts due within one year	(449)		(449)
Long-term debt	403,810	$ 368,472	368,472
Other debt
Debt Instrument [Line Items]
Total debt	687		1,171
Revolving credit facility due October 2023
Debt Instrument [Line Items]
Total debt	35,000		0
8.125% Senior Notes Due May 2025 | Senior Notes
Debt Instrument [Line Items]
Total debt	375,000		375,000
Unamortized deferred financing costs of 8.125% senior notes	$ (6,428)		$ (7,250)
Stated interest rate (percentage)	8.125%			8.125%

Debt - Revolving Credit Facilit

Debt - Revolving Credit Facility and Term Loan (Narrative) (Details) - USD ($)	1 Months Ended		12 Months Ended
	Apr. 30, 2017	Nov. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 09, 2018	Oct. 08, 2018	Oct. 05, 2015	Jul. 10, 2015
Debt Instrument [Line Items]
Amortization of deferred financing costs			$ 3,347,000	$ 4,714,000	$ 4,584,000
Credit Agreement
Debt Instrument [Line Items]
Borrowing capacity								$ 925,000,000	$ 750,000,000
Amended Credit Agreement
Debt Instrument [Line Items]
Maximum senior secured leverage ratio			2.75
Revolving credit facility | Credit Agreement
Debt Instrument [Line Items]
Borrowing capacity							$ 680,000,000	680,000,000
Amortization of deferred financing costs			$ 2,300,000	1,700,000	1,600,000
Outstanding borrowings			35,000,000
Outstanding letters of credit			56,700,000
Undrawn capacity			608,300,000
Amount available for additional borrowings			$ 578,400,000
Weighted average annual interest rate (percentage)			4.30%
Percent of voting equity interests securing EESLP's obligations			65.00%
Revolving credit facility | Amended Credit Agreement
Debt Instrument [Line Items]
Borrowing capacity						$ 700,000,000
Unamortized deferred financing cost expensed			$ 700,000
Term loan facility
Debt Instrument [Line Items]
Unamortized deferred financing cost expensed				1,700,000
Amortization of deferred financing costs				$ 2,400,000	$ 2,900,000
Term loan facility | Credit Agreement
Debt Instrument [Line Items]
Borrowing capacity								$ 245,000,000
Borrowings outstanding repaid	$ 232,800,000	$ 12,300,000
Federal funds effective rate | Revolving credit facility | Amended Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percentage)			0.50%
LIBOR | Revolving credit facility | Amended Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percentage)			1.00%
London Interbank Offered Rate (LIBOR) and European Interbank Offered rate (EURIBOR) | Minimum | Revolving credit facility | Amended Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percentage)			1.75%
London Interbank Offered Rate (LIBOR) and European Interbank Offered rate (EURIBOR) | Maximum | Revolving credit facility | Amended Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percentage)			2.75%
Base Rate | Minimum | Revolving credit facility | Amended Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percentage)			0.75%
Base Rate | Maximum | Revolving credit facility | Amended Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percentage)			1.75%

Debt - Senior Notes Due May 202

Debt - Senior Notes Due May 2025 (Narrative) (Details) - USD ($)	1 Months Ended	12 Months Ended
	Apr. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Ownership percentage by parent	100.00%
Net proceeds from borrowings transferred		$ 18,744,000	$ 44,720,000	$ 49,176,000
Senior Notes | 8.125% Senior Notes Due May 2025
Debt Instrument [Line Items]
Stated interest rate (percentage)	8.125%	8.125%
Debt instrument, face amount	$ 375,000,000
Proceeds from debt issuance	$ 367,100,000
Debt instrument, redemption price, percentage	108.125%
Debt instrument, minimum principal amount required to remain outstanding after redemption, percentage	65.00%
Debt instrument, maximum period between redemption and closing of equity offering	180 days
Senior Notes | 8.125% Senior Notes Due May 2025 | Maximum
Debt Instrument [Line Items]
Debt instrument, debt that may be redeemed with net proceeds of equity offerings (percentage)	35.00%
Senior Notes | 8.125% Senior Notes Due May 2025 | Twelve Month Period Beginning On May 1, 2020
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	106.094%
Senior Notes | 8.125% Senior Notes Due May 2025 | Twelve Month Period Beginning On May 1, 2021
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	104.063%
Senior Notes | 8.125% Senior Notes Due May 2025 | Twelve Month Period Beginning On May 1, 2022
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	102.031%
Senior Notes | 8.125% Senior Notes Due May 2025 | Twelve Month Period Beginning On May 1, 2023
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	100.00%
Archrock | Spin-off Agreement
Debt Instrument [Line Items]
Net proceeds from borrowings transferred			$ 25,000,000

Debt - Unamortized Debt Financi

Debt - Unamortized Debt Financing Costs (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Payments of debt issuance costs	$ 4,801	$ 7,911	$ 779
Amortization of deferred financing costs	3,347	4,714	4,584
Term loan facility
Debt Instrument [Line Items]
Amortization of deferred financing costs		2,400	$ 2,900
Revolving credit facility
Debt Instrument [Line Items]
Payments of debt issuance costs	4,800
8.125% Senior Notes Due May 2025 | Senior Notes
Debt Instrument [Line Items]
Payments of debt issuance costs		7,900
Amortization of deferred financing costs	$ 1,000	$ 700

Debt - Debt Compliance (Narrati

Debt - Debt Compliance (Narrative) (Details)	Dec. 31, 2018
Debt Disclosure [Abstract]
Minimum interest coverage ratio	2.25
Maximum total leverage ratio	4.5
Maximum senior secured leverage ratio	2.75

Debt - Schedule of Contractual

Debt - Schedule of Contractual Maturities of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Maturity Schedule
2,019	$ 449
2,020	238
2,021	0
2,022	0
2,023	35,000
Thereafter	375,000
Total debt	410,687
Senior Notes | 8.125% Senior Notes Due May 2025
Debt Instrument [Line Items]
Aggregate unamortized debt financing costs	$ 6,428	$ 7,250

Fair Value Measurements (Detail

Fair Value Measurements (Details) - Nonrecurring Basis $ in Thousands	Dec. 31, 2018USD ($)year	Dec. 31, 2017USD ($)
(Level 1)
Summary of assets and liabilities measured at fair value on nonrecurring basis
Impaired long-lived assets	$ 0	$ 0
Impaired assets—assets held for sale	0	0
Long-term note receivable	0	0
(Level 2)
Summary of assets and liabilities measured at fair value on nonrecurring basis
Impaired long-lived assets	0	0
Impaired assets—assets held for sale	0	0
Long-term note receivable	0	0
(Level 3)
Summary of assets and liabilities measured at fair value on nonrecurring basis
Impaired long-lived assets	550	403
Impaired assets—assets held for sale	21,026	20,493
Long-term note receivable	$ 14,573	$ 0
Measurement Input, Maturity
Summary of assets and liabilities measured at fair value on nonrecurring basis
Measurement input | year	8
Discount Rate
Summary of assets and liabilities measured at fair value on nonrecurring basis
Measurement input	0.052

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - 8.125% Senior Notes Due May 2025 - Senior Notes - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Estimate of Fair Value Measurement
Summary of assets and liabilities measured at fair value on nonrecurring basis
Fair value of notes	$ 362	$ 404
Reported Value Measurement
Summary of assets and liabilities measured at fair value on nonrecurring basis
Fair value of notes	$ 375	$ 375

Long-Lived Asset Impairment (De

Long-Lived Asset Impairment (Detail) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)compressor_unit	Dec. 31, 2016USD ($)compressor_unit
Long-Lived Asset Impairment
Long-lived asset impairment		$ 3,858	$ 5,700	$ 14,495
Idle compressor units
Long-Lived Asset Impairment
Asset impairment			$ 600	$ 12,700
Number of idle compressor units to be retired | compressor_unit			1	62
Other long lived assets
Long-Lived Asset Impairment
Long-lived asset impairment				$ 1,700
Contract Operations
Long-Lived Asset Impairment
Asset impairment		2,100
Product Sales Business | Other long lived assets
Long-Lived Asset Impairment
Asset impairment	$ 3,000
Assets Held for Sale | Product Sales Business
Long-Lived Asset Impairment
Asset impairment		$ 1,800	$ 2,100

Restatement Related Charges (_3

Restatement Related Charges (Recoveries), Net - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restatement Charges [Abstract]
Costs incurred associated with restatement of financial statements and pending SEC investigation	$ 900	$ 6,200	$ 30,100
Restatement Charges [Line Items]
Cash recovered from Archrock	1,220	2,801	11,207
Spin-off
Restatement Charges [Line Items]
Cash recovered from Archrock	$ 1,200	$ 2,800	$ 11,200

Restatement Related Charges (_4

Restatement Related Charges (Recoveries), Net - Summary of Change to Accrued Liability Balance Related to Restatement Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restatement Charges Reserve
Beginning balance	$ 579	$ 2,212
Additions for costs (reductions for recoveries), net	(276)	3,419	$ 18,879
Reductions for payments, net	(256)	(5,052)
Ending balance	$ 47	$ 579	$ 2,212

Restatement Related Charges (_5

Restatement Related Charges (Recoveries), Net - Summary of Components of Charges Included in Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restatement Charges [Abstract]
External accounting costs	$ 0	$ 1,071	$ 21,073
External legal costs	531	4,396	7,565
Other	413	753	1,448
Recoveries from Archrock	(1,220)	(2,801)	(11,207)
Total restatement related charges (recoveries), net	$ (276)	$ 3,419	$ 18,879

Restructuring and Other Charg_3

Restructuring and Other Charges - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restatement Charges [Line Items]
Restructuring and other charges	$ 1,997	$ 3,189	$ 22,038
Restructuring reserve	309	612	3,395
Relocation Plan
Restatement Charges [Line Items]
Restructuring and other charges	2,000
Restructuring reserve	309	0	0
Estimated additional one-time expenditures	300
Spin-off
Restatement Charges [Line Items]
Restructuring and other charges		600	3,900
Restructuring reserve	0	0	934
Cost reduction plan
Restatement Charges [Line Items]
Restructuring and other charges		2,600	18,100
Restructuring reserve	0	612	2,461
Employee severance
Restatement Charges [Line Items]
Restructuring and other charges	910	2,100	14,473
Employee severance | Cost reduction plan
Restatement Charges [Line Items]
Restructuring and other charges		2,100	14,500
Employee severance | Cost reduction plan | Product sales
Restatement Charges [Line Items]
Restructuring and other charges			9,000
Retention awards to certain employees
Restatement Charges [Line Items]
Restructuring and other charges	0	599	3,056
Retention awards to certain employees | Spin-off
Restatement Charges [Line Items]
Restructuring and other charges		600	3,100
Ceased use of corporate building under operating lease
Restatement Charges [Line Items]
Restructuring and other charges	$ 0	$ 0	2,904
Ceased use of corporate building under operating lease | Cost reduction plan
Restatement Charges [Line Items]
Restructuring and other charges			$ 2,900

Restructuring and Other Charg_4

Restructuring and Other Charges - Summary of Changes to Accrued Liability Balance Related to Restructuring and Other Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Restructuring Charges Accrual
Beginning balance	$ 612	$ 3,395
Additions for costs expensed	1,997	3,189
Less non-cash income (expense)		517
Reductions for payments	(2,300)	(6,489)
Ending balance	309	612
Spin-off
Restructuring Charges Accrual
Beginning balance	0	934
Additions for costs expensed	0	599
Less non-cash income (expense)		(223)
Reductions for payments	0	(1,310)
Ending balance	0	0
Cost Reduction Plan
Restructuring Charges Accrual
Beginning balance	612	2,461
Additions for costs expensed	0	2,590
Less non-cash income (expense)		740
Reductions for payments	(612)	(5,179)
Ending balance	0	612
Relocation Plan
Restructuring Charges Accrual
Beginning balance	0	0
Additions for costs expensed	1,997	0
Less non-cash income (expense)		0
Reductions for payments	(1,688)	0
Ending balance	$ 309	$ 0

Restructuring and Other Charg_5

Restructuring and Other Charges - Summary of the Components of Charges Included in Restructuring and Other Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restatement Charges [Line Items]
Restructuring and other charges	$ 1,997	$ 3,189	$ 22,038
Consulting fees
Restatement Charges [Line Items]
Restructuring and other charges	0	0	22
Start-up of stand-alone functions
Restatement Charges [Line Items]
Restructuring and other charges	0	0	887
Retention awards to certain employees
Restatement Charges [Line Items]
Restructuring and other charges	0	599	3,056
Employee termination benefits
Restatement Charges [Line Items]
Restructuring and other charges	910	2,100	14,473
Net charges to exit the use of a corporate operating lease
Restatement Charges [Line Items]
Restructuring and other charges	0	0	2,904
Relocation costs
Restatement Charges [Line Items]
Restructuring and other charges	1,087	0	0
Other
Restatement Charges [Line Items]
Restructuring and other charges	$ 0	$ 490	$ 696

Provision for Income Taxes - Sc

Provision for Income Taxes - Schedule of Components of Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
United States	$ (6,899)	$ (43,403)	$ (129,864)
Foreign	46,724	60,242	82,340
Income (loss) before income taxes	$ 39,825	$ 16,839	$ (47,524)

Provision for Income Taxes - _2

Provision for Income Taxes - Schedule of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current tax provision (benefit):
U.S. federal	$ 769	$ 0	$ (131)
State	258	250	(792)
Foreign	36,869	25,638	54,075
Total current	37,896	25,888	53,152
Deferred tax provision (benefit):
U.S. federal	242	(5,102)	62,672
State	(71)	(15)	2,306
Foreign	1,366	1,924	6,112
Total deferred	1,537	(3,193)	71,090
Provision for income taxes	$ 39,433	$ 22,695	$ 124,242

Provision for Income Taxes - Na

Provision for Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Effective income tax rate (as a percent)		99.00%	134.80%	(261.40%)
Change in U.S. deferred taxes related to Tax Reform Act		$ 0	$ 15,518	$ 0
Net operating loss carryforwards in certain foreign jurisdictions	$ 146,800	146,800
Foreign tax credit carryforwards	81,759	81,759	92,734
Research and development credit carryforwards	31,251	31,251	31,251
Alternative minimum tax credit carryforwards	5,493	5,493	5,575
Valuation allowance for deferred tax assets	200,105	$ 200,105	222,049
Change in ownership percentage, minimum (as a percent)		50.00%
Period of ownership percentage change		3 years
Cumulative undistributed foreign earnings	341,700	$ 341,700
Unrecognized tax benefits	27,800	27,800	20,500	18,200
Potential interest expense and penalties	4,700	4,700	4,300	3,000
Maximum reasonably possible decrease in unrecognized tax benefits	9,000	9,000
Effect of change in tax rate			15,500
Effect of transition tax	900		10,100
Effect of BEAT provisions		400
U.S. Federal
Operating Loss Carryforwards [Line Items]
Change in U.S. deferred taxes related to Tax Reform Act			15,500
U.S. federal net operating loss carryforwards	77,400	77,400
Valuation allowance for deferred tax assets				$ 119,800	$ 65,500
Foreign
Operating Loss Carryforwards [Line Items]
Change in U.S. deferred taxes related to Tax Reform Act			(3,100)
Net operating loss carryforwards, not subject to expiration	113,400	113,400
Net operating loss carryforwards, subject to expiration	$ 3,700	$ 3,700
Tax Special Regularization Program (The PERT Program) Pursuant to Brazil Provisional measure No. 783 | Secretariat of the Federal Revenue Bureau of Brazil
Operating Loss Carryforwards [Line Items]
Additional benefit resulting from full valuation allowance recorded			15,200
Tax penalties			1,800
Tax interest			$ 2,400

Provision for Income Taxes - _3

Provision for Income Taxes - Schedule of Reasons for the Difference Between Effective Tax Rates and U.S. Statutory Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income taxes at U.S. federal statutory rate of 21% (35% for 2017 and 2016)	$ 8,363	$ 5,894	$ (16,633)
Federal statutory tax rate (percentage)	21.00%	35.00%	35.00%
State income taxes net of federal tax benefit	$ 261	$ 361	$ (1,841)
Foreign tax rate differential	28,266	44,868	29,428
U.S. foreign tax credits or deductions	8,349	(11,224)	(9,492)
Research and development credits	0	0	(1,024)
Unrecognized tax benefits	9,496	3,332	3,629
Change in valuation allowances	(18,973)	(48,059)	124,850
Proceeds from sale of joint venture assets	0	0	(3,641)
Capital contributions or distributions related to Spin-off	(352)	(1,084)	(2,887)
Change in U.S. deferred taxes related to Tax Reform Act	0	15,518	0
Transition Tax	873	10,060	0
Other	3,150	3,029	1,853
Provision for income taxes	$ 39,433	$ 22,695	$ 124,242

Provision for Income Taxes - _4

Provision for Income Taxes - Schedule of Tax Effects of Temporary Differences (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Net operating loss carryforwards	$ 68,377	$ 86,060
Foreign tax credit carryforward	81,759	92,734
Research and development credit carryforwards	31,251	31,251
Alternative minimum tax credit carryforwards	5,493	5,575
Deferred revenue	25,858	32,496
Other	39,751	47,496
Subtotal	252,489	295,612
Valuation allowances	(200,105)	(222,049)
Total deferred tax assets	52,384	73,563
Deferred tax liabilities:
Property, plant and equipment	(28,413)	(47,954)
Other	(18,606)	(24,805)
Total deferred tax liabilities	(47,019)	(72,759)
Net deferred tax assets	$ 5,365	$ 804

Provision for Income Taxes - Re

Provision for Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of unrecognized tax benefits
Beginning balance	$ 20,548	$ 18,237	$ 14,943
Additions based on tax positions related to prior years	2,542	2,034	3,140
Additions based on tax positions related to current year	9,983	1,686	256
Reductions based on settlement with government authority	(1,391)	(241)	0
Reductions based on lapse of statute of limitations	(1,997)	(378)	(102)
Reductions based on tax positions related to prior years	(1,902)	(790)	0
Ending balance	$ 27,783	$ 20,548	$ 18,237

Stockholders' Equity - Narrativ

Stockholders' Equity - Narrative (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)vote$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)
Equity [Abstract]
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Preferred Stock, shares issued	0	0
Preferred stock, shares outstanding	0
Common stock, shares authorized	250,000,000	250,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Common stock, shares issued	36,868,066	36,193,930
Common stock, shares, outstanding	36,146,786
Payment for spin-off transaction, initial payment | $	$ 18,700	$ 19,700	$ 49,200
Common stock, voting rights | vote	1
Debt Instrument [Line Items]
Net proceeds from borrowings transferred | $	$ 18,744	44,720	$ 49,176
Spin-off Agreement | Archrock
Debt Instrument [Line Items]
Net proceeds from borrowings transferred | $		$ 25,000

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
AOCI Attributable to Parent, Net of Tax
Beginning balance	$ 554,786	$ 556,771	$ 805,936
Ending balance	552,821	554,786	556,771
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax
Beginning balance	45,707	47,508	29,198
Income (loss) recognized in other comprehensive income (loss)	(7,476)	(1,801)	3,151
Loss reclassified from accumulated other comprehensive income			15,159
Ending balance	$ 38,231	$ 45,707	47,508
Belleli CPE | Disposed of by sale | Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax
Loss reclassified from accumulated other comprehensive income			$ 15,200

Stock-Based Compensation and _3

Stock-Based Compensation and Awards - 2015 Stock Incentive Plan (Narrative) (Details) - Common Stock - Exterran Corporation 2015 Stock Incentive Plan - shares	Dec. 31, 2018	Oct. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum aggregate number of shares that may be issued (in shares)		3,000,000
Shares available to be issued (shares)	1,114,438

Stock-Based Compensation and _4

Stock-Based Compensation and Awards - Directors' Stock and Deferral Plan (Narrative) (Details) - shares	Oct. 30, 2015	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of retainer fees directors may elect to receive in shares of common stock, option one	25.00%
Percentage of retainer fees directors may elect to receive in shares of common stock, option two	50.00%
Percentage of retainer fees directors may elect to receive in shares of common stock, option three	75.00%
Percentage of retainer fees directors may elect to receive in shares of common stock, option four	100.00%
Directors’ Stock and Deferral Plan | Stock Compensation Plan | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum aggregate number of shares that may be issued (in shares)	125,000
Shares available to be issued (shares)		77,870

Stock-Based Compensation and _5

Stock-Based Compensation and Awards - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 14,088	$ 15,368	$ 14,636
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0	21	115
Restricted stock, restricted stock units, performance units, cash settled restricted stock units and cash settled performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	14,088	14,685	13,188
Restructuring and other charges—stock-based compensation expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 0	$ 662	$ 1,333

Stock-Based Compensation and _6

Stock-Based Compensation and Awards - Stock Options (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)	0	0	0
Total intrinsic value of stock options exercised to purchase common stock	$ 2.1
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Stock options | First anniversary vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Stock options | Second anniversary vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Stock options | Third anniversary vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (no later than)	10 years

Stock-Based Compensation and _7

Stock-Based Compensation and Awards - Schedule of Changes in Stock Option Awards for Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Options
Options outstanding, beginning of period (in shares)	210,000
Granted (in shares)	0	0	0
Exercised (in shares)	(136,000)
Cancelled (in shares)	0
Options outstanding, end of period (in shares)	74,000	210,000
Options exercisable, end of period (in shares)	74,000
Weighted Average Exercise Price Per Share
Options outstanding, beginning of period (in dollars per share)	$ 15.61
Granted (in dollars per share)	0
Exercised (in dollars per share)	10.06
Cancelled (in dollars per share)	0
Options outstanding, end of period (in dollars per share)	25.81	$ 15.61
Options exercisable, end of period (in dollars per share)	$ 25.81
Weighted Average Remaining Life
Options outstanding, end of period (years)	1 year 8 months 12 days
Options exercisable, end of period (years)	1 year 8 months 12 days
Aggregate Intrinsic Value
Options outstanding, end of period	$ 0
Options exercisable, end of period	$ 0

Stock-Based Compensation and _8

Stock-Based Compensation and Awards - Restricted Stock, Restricted Stock Units and Performance Units (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Restricted stock, restricted stock units and performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Unrecognized compensation cost	$ 16.5
Weighted-average vesting period	1 year 5 months 16 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	2 years
First anniversary vesting | Restricted stock, restricted stock units and performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Second anniversary vesting | Restricted stock, restricted stock units and performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Third anniversary vesting | Restricted stock, restricted stock units and performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%

Stock-Based Compensation and _9

Stock-Based Compensation and Awards - Schedule of Changes in Restricted Stock, Restricted Stock Units and Performance Units (Details) - Restricted stock, restricted stock units and performance units shares in Thousands	12 Months Ended
	Dec. 31, 2018$ / sharesshares
Shares
Non-vested awards, beginning of period (in shares) | shares	1,165
Granted (in shares) | shares	576
Vested (in shares) | shares	(591)
Cancelled (in shares) | shares	(106)
Non-vested awards, end of period (in shares) | shares	1,044
Weighted Average Grant-Date Fair Value Per Share
Non-vested awards, beginning of period (in dollars per share) | $ / shares	$ 23.93
Granted (in dollars per share) | $ / shares	26.25
Vested (in dollars per share) | $ / shares	22.50
Cancelled (in dollars per share) | $ / shares	25.18
Non-vested awards, end of period (in dollars per share) | $ / shares	$ 25.89

Net Income (Loss) Per Common _3

Net Income (Loss) Per Common Share - Reconciliation of Basic and Diluted Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Numerator for basic and diluted net income (loss) per common share:
Income (loss) from continuing operations									$ 392	$ (5,856)	$ (171,766)
Income (loss) from discontinued operations, net of tax	$ 19,346	$ 2,173	$ 1,544	$ 1,399	$ 4,579	$ 2,139	$ 374	$ 32,644	24,462	39,736	(56,171)
Less: Net income attributable to participating securities									(641)	0	0
Net income (loss) — used in basic and diluted net income (loss) per common share									$ 24,213	$ 33,880	$ (227,937)
Weighted average common shares outstanding including participating securities (in shares)									36,371	35,961	35,489
Less: Weighted average participating securities outstanding (in shares)									(938)	(1,002)	(921)
Weighted average common shares outstanding — used in basic net income (loss) per common share (in shares)									35,433	34,959	34,568
Net dilutive potential common shares issuable:
On exercise of options and vesting of restricted stock units (in shares)									56
Weighted average common shares outstanding — used in diluted net income (loss) per common share (in shares)									35,489	34,959	34,568
Net income (loss) per common share:
Net income per share, basic (in dollars per share)	$ 0.40	$ 0.15	$ 0	$ 0.15	$ 0.18	$ 0.09	$ 0.10	$ 0.58	$ 0.68	$ 0.97	$ (6.59)
Net income per share, diluted (in dollars per share)	$ 0.40	$ 0.15	$ 0	$ 0.15	$ 0.18	$ 0.09	$ 0.10	$ 0.58	$ 0.68	$ 0.97	$ (6.59)

Net Income (Loss) Per Common _4

Net Income (Loss) Per Common Share - Schedule of Stock Excluded From Computing Diluted Net Income (Loss) Per Common Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net dilutive potential common shares issuable (in shares)	35	124	275
On exercise of options where exercise price is greater than average market value for the period
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net dilutive potential common shares issuable (in shares)	35	43	225
On exercise of options and vesting of restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net dilutive potential common shares issuable (in shares)	0	81	50

Retirement Benefit Plan (Detail

Retirement Benefit Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Contribution Plan Disclosure [Line Items]
Costs incurred for employer matching contributions	$ 3.3	$ 2.4	$ 2.4
First 2% of contributions
Defined Contribution Plan Disclosure [Line Items]
Employer match of employee contributions (as a percent)	100.00%
Eligible compensation contribution, matched by employer (as a percent)	2.00%
Next 4% of eligible compensation
Defined Contribution Plan Disclosure [Line Items]
Employer match of employee contributions (as a percent)	50.00%
Eligible compensation contribution, matched by employer (as a percent)	4.00%
First 1% of contributions
Defined Contribution Plan Disclosure [Line Items]
Employer match of employee contributions (as a percent)		100.00%	100.00%
Eligible compensation contribution, matched by employer (as a percent)		1.00%	1.00%
Next 5% of eligible compensation
Defined Contribution Plan Disclosure [Line Items]
Employer match of employee contributions (as a percent)		50.00%	50.00%
Eligible compensation contribution, matched by employer (as a percent)		5.00%	5.00%

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 9.9	$ 9.3	$ 9.9

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Future Minimum Rental Payments (Details) $ in Thousands	Dec. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,019	$ 6,076
2,020	5,929
2,021	4,583
2,022	3,756
2,023	3,038
Thereafter	11,615
Total	$ 34,997

Commitments and Contingencies_3

Commitments and Contingencies - Contingencies (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Business acquisition, contingent consideration
Accrual for outcomes of non-income-based tax audits	$ 5.1	$ 2.8
Indemnification receivables
Business acquisition, contingent consideration
Indemnification receivables from Archrock	2.8	$ 1.5
Corporate Joint Venture
Business acquisition, contingent consideration
Remaining principal amount due from PDVSA Gas	$ 4

Commitments and Contingencies_4

Commitments and Contingencies - Indemnifications (Narrative) (Details)	12 Months Ended
	Dec. 31, 2018
Taxes attributable to business after spin-off
Loss Contingencies [Line Items]
Liability for certain taxes not clearly attributable to the business (as a percent)	50.00%

Reportable Segments and Geogr_3

Reportable Segments and Geographic Information - Narrative (Details) - segment	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Concentration Risk [Line Items]
Number of reportable segments	3
MPLX LP | Total revenues | Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of total revenues	15.00%
Archrock Partners and Archrock | Total revenues | Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of total revenues		12.00%
Petroleo Brasileiro | Total revenues | Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of total revenues			10.00%

Reportable Segments and Geogr_4

Reportable Segments and Geographic Information - Schedule of Revenues and Other Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Segment Reporting Information [Line Items]
Revenue	$ 332,153	$ 334,849	$ 343,471	$ 350,383	$ 337,689	$ 314,479	$ 317,701	$ 245,425	$ 1,360,856	$ 1,215,294	$ 905,397
Gross margin									383,428	347,140	308,991
Total assets	1,567,054				1,460,807				1,567,054	1,460,807		$ 1,482,480
Capital expenditures									215,108	131,673	73,670
Reportable Segments
Segment Reporting Information [Line Items]
Revenue									1,360,856	1,215,294	905,397
Gross margin									383,428	347,140	308,991
Capital expenditures									205,051	126,893	71,649
Other
Segment Reporting Information [Line Items]
Revenue									0	0	0
Gross margin									0	0	0
Capital expenditures									10,057	4,780	2,021
Contract Operations
Segment Reporting Information [Line Items]
Revenue									360,973	375,269	392,463
Contract Operations | Reportable Segments
Segment Reporting Information [Line Items]
Revenue									360,973	375,269	392,463
Gross margin									238,835	241,889	248,793
Capital expenditures									197,025	123,842	69,946
Aftermarket Services
Segment Reporting Information [Line Items]
Revenue									120,676	107,063	120,550
Aftermarket Services | Reportable Segments
Segment Reporting Information [Line Items]
Revenue									120,676	107,063	120,550
Gross margin									31,010	28,842	33,208
Capital expenditures									474	339	332
Product Sales
Segment Reporting Information [Line Items]
Revenue									879,207	732,962	392,384
Product Sales | Reportable Segments
Segment Reporting Information [Line Items]
Revenue									879,207	732,962	392,384
Gross margin									113,583	76,409	26,990
Capital expenditures									7,552	2,712	1,371
Continuing Operations
Segment Reporting Information [Line Items]
Total assets	1,553,788				1,433,356				1,553,788	1,433,356	1,324,964
Continuing Operations | Reportable Segments
Segment Reporting Information [Line Items]
Total assets	1,094,269				945,676				1,094,269	945,676	943,698
Continuing Operations | Other
Segment Reporting Information [Line Items]
Total assets	459,519				487,680				459,519	487,680	381,266
Continuing Operations | Contract Operations | Reportable Segments
Segment Reporting Information [Line Items]
Total assets	860,896				783,340				860,896	783,340	745,752
Continuing Operations | Aftermarket Services | Reportable Segments
Segment Reporting Information [Line Items]
Total assets	28,071				22,882				28,071	22,882	28,421
Continuing Operations | Product Sales | Reportable Segments
Segment Reporting Information [Line Items]
Total assets	$ 205,302				$ 139,454				$ 205,302	$ 139,454	$ 169,525

Reportable Segments and Geogr_5

Reportable Segments and Geographic Information - Schedule of Asset from Reportable Segments to Total Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total assets	$ 1,567,054	$ 1,482,480	$ 1,460,807
Continuing Operations
Segment Reporting Information [Line Items]
Total assets	1,553,788		1,433,356	$ 1,324,964
Continuing Operations | Reportable Segments
Segment Reporting Information [Line Items]
Total assets	1,094,269		945,676	943,698
Continuing Operations | Other
Segment Reporting Information [Line Items]
Total assets	459,519		487,680	$ 381,266
Discontinued Operations | Other
Segment Reporting Information [Line Items]
Total assets	$ 13,266		$ 27,451

Reportable Segments and Geogr_6

Reportable Segments and Geographic Information - Schedule of Geographic Data (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Segment Reporting Information [Line Items]
Revenue	$ 332,153	$ 334,849	$ 343,471	$ 350,383	$ 337,689	$ 314,479	$ 317,701	$ 245,425	$ 1,360,856	$ 1,215,294	$ 905,397
Property, plant and equipment, net	901,577				822,279				901,577	822,279	790,922	$ 820,250
U.S.
Segment Reporting Information [Line Items]
Revenue									789,528	648,290	335,268
Property, plant and equipment, net	112,420				76,562				112,420	76,562	84,669
Argentina
Segment Reporting Information [Line Items]
Revenue									139,987	156,340	151,374
Property, plant and equipment, net	197,669				219,840				197,669	219,840	222,548
Brazil
Segment Reporting Information [Line Items]
Revenue									94,619	98,419	85,831
Property, plant and equipment, net	105,979				138,835				105,979	138,835	157,139
Mexico
Segment Reporting Information [Line Items]
Revenue									68,745	75,388	90,876
Property, plant and equipment, net	121,312				148,405				121,312	148,405	167,279
Oman
Segment Reporting Information [Line Items]
Property, plant and equipment, net	174,165				110,115				174,165	110,115	23,560
Other international
Segment Reporting Information [Line Items]
Revenue									267,977	236,857	242,048
Property, plant and equipment, net	$ 190,032				$ 128,522				$ 190,032	$ 128,522	$ 135,727

Reportable Segments and Geogr_7

Reportable Segments and Geographic Information - Reconciliation of Income (Loss) Before Income Taxes to Total Gross Margin (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting [Abstract]
Income (loss) before income taxes	$ 39,825	$ 16,839	$ (47,524)
Selling, general and administrative	178,401	176,318	157,485
Depreciation and amortization	123,922	107,824	132,886
Long-lived asset impairment	3,858	5,700	14,495
Restatement related charges (recoveries), net	(276)	3,419	18,879
Restructuring and other charges	1,997	3,189	22,038
Interest expense	29,217	34,826	34,181
Equity in income of non-consolidated affiliates	0	0	(10,403)
Other (income) expense, net	6,484	(975)	(13,046)
Total gross margin	$ 383,428	$ 347,140	$ 308,991

Selected Quarterly Financial _3

Selected Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 332,153	$ 334,849	$ 343,471	$ 350,383	$ 337,689	$ 314,479	$ 317,701	$ 245,425	$ 1,360,856	$ 1,215,294	$ 905,397
Gross profit	66,172	66,723	68,598	66,059	61,621	62,962	63,289	56,537
Income (loss) from continuing operations	(5,273)	3,196	(1,469)	3,938	2,083	1,214	3,170	(12,323)	392	(5,856)	(171,766)
Income (loss) from discontinued operations, net of tax	19,346	2,173	1,544	1,399	4,579	2,139	374	32,644	24,462	39,736	(56,171)
Net income (loss)	$ 14,073	$ 5,369	$ 75	$ 5,337	$ 6,662	$ 3,353	$ 3,544	$ 20,321	$ 24,854	$ 33,880	$ (227,937)
Net income per common share:
Basic (in dollars per share)	$ 0.40	$ 0.15	$ 0	$ 0.15	$ 0.18	$ 0.09	$ 0.10	$ 0.58	$ 0.68	$ 0.97	$ (6.59)
Diluted (in dollars per share)	$ 0.40	$ 0.15	$ 0	$ 0.15	$ 0.18	$ 0.09	$ 0.10	$ 0.58	$ 0.68	$ 0.97	$ (6.59)

Selected Quarterly Financial _4

Selected Quarterly Financial Data (Unaudited) - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Venezuela
Debt Instrument [Line Items]
Installment payments, including an annual charge	$ 19.8	$ 19.7	$ 38.8

Supplemental Guarantor Financ_3

Supplemental Guarantor Financial Information - Narrative (Details)	Apr. 30, 2017USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership percentage by parent	100.00%
8.125% Senior Notes Due May 2025 | Senior Notes
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Debt instrument, face amount	$ 375,000,000

Supplemental Guarantor Financ_4

Supplemental Guarantor Financial Information - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 19,300	$ 49,145	$ 49,145	$ 35,700
Restricted cash	178	546	546	700
Accounts receivable, net of allowance	248,467	261,251	266,052
Inventory, net	150,689	107,785	107,909
Costs and estimated earnings in excess of billings on uncompleted contracts	0	0	40,695
Contract assets	91,602	50,824	0
Intercompany receivables	0		0
Other current assets	44,234	38,528	38,707
Current assets held for sale	0	15,761	15,761
Current assets associated with discontinued operations	11,605	23,751	23,751
Total current assets	566,075	547,591	542,566
Property, plant and equipment, net	901,577	820,250	822,279	790,922
Investment in affiliates	0		0
Deferred income taxes	11,370	10,954	10,550
Intangible and other assets, net	86,371	95,253	76,980
Long-term assets held for sale	0	4,732	4,732
Long-term assets associated with discontinued operations	1,661	3,700	3,700
Total assets	1,567,054	1,482,480	1,460,807
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable, trade	165,744	148,744	148,744
Accrued liabilities	123,335	130,380	114,336
Contract liabilities	153,483	112,244	0
Deferred revenue	0	0	23,902
Billings on uncompleted contracts in excess of costs and estimated earnings	0	0	89,565
Intercompany payables	0		0
Current liabilities associated with discontinued operations	14,767	31,971	31,971
Total current liabilities	457,329	423,339	408,518
Long-term debt	403,810	368,472	368,472
Deferred income taxes	6,005	7,838	9,746
Long-term contract liabilities	101,363	89,004	0
Long-term deferred revenue	0	0	92,485
Other long-term liabilities	39,812	42,534	20,272
Long-term liabilities associated with discontinued operations	5,914	6,528	6,528
Total liabilities	1,014,233	937,715	906,021
Total stockholders’ equity	552,821	544,765	554,786	$ 556,771	$ 805,936
Total liabilities and stockholders’ equity	1,567,054	$ 1,482,480	1,460,807
Reportable Legal Entities | Parent Guarantor
ASSETS
Cash and cash equivalents	46		397
Restricted cash	0		0
Accounts receivable, net of allowance	0		0
Inventory, net	0		0
Costs and estimated earnings in excess of billings on uncompleted contracts			0
Contract assets	0
Intercompany receivables	0		0
Other current assets	0		0
Current assets held for sale			0
Current assets associated with discontinued operations	0		0
Total current assets	46		397
Property, plant and equipment, net	0		0
Investment in affiliates	554,207		555,735
Deferred income taxes	0		0
Intangible and other assets, net	0		0
Long-term assets held for sale			0
Long-term assets associated with discontinued operations	0		0
Total assets	554,253		556,132
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable, trade	0		0
Accrued liabilities	0		57
Contract liabilities	0
Deferred revenue			0
Billings on uncompleted contracts in excess of costs and estimated earnings			0
Intercompany payables	1,432		1,289
Current liabilities associated with discontinued operations	0		0
Total current liabilities	1,432		1,346
Long-term debt	0		0
Deferred income taxes	0		0
Long-term contract liabilities	0
Long-term deferred revenue			0
Other long-term liabilities	0		0
Long-term liabilities associated with discontinued operations	0		0
Total liabilities	1,432		1,346
Total stockholders’ equity	552,821		554,786
Total liabilities and stockholders’ equity	554,253		556,132
Reportable Legal Entities | Issuers
ASSETS
Cash and cash equivalents	1,185		24,195
Restricted cash	0		0
Accounts receivable, net of allowance	92,880		123,362
Inventory, net	87,972		50,528
Costs and estimated earnings in excess of billings on uncompleted contracts			33,439
Contract assets	67,323
Intercompany receivables	158,977		158,296
Other current assets	7,744		6,095
Current assets held for sale			15,761
Current assets associated with discontinued operations	0		0
Total current assets	416,081		411,676
Property, plant and equipment, net	303,813		288,670
Investment in affiliates	870,959		831,097
Deferred income taxes	5,493		5,452
Intangible and other assets, net	32,046		12,218
Long-term assets held for sale			4,732
Long-term assets associated with discontinued operations	0		0
Total assets	1,628,392		1,553,845
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable, trade	133,291		115,273
Accrued liabilities	47,012		54,724
Contract liabilities	82,367
Deferred revenue			2,162
Billings on uncompleted contracts in excess of costs and estimated earnings			89,002
Intercompany payables	379,628		359,766
Current liabilities associated with discontinued operations	0		0
Total current liabilities	642,298		620,927
Long-term debt	403,810		368,472
Deferred income taxes	0		0
Long-term contract liabilities	17,226
Long-term deferred revenue			629
Other long-term liabilities	10,851		8,082
Long-term liabilities associated with discontinued operations	0		0
Total liabilities	1,074,185		998,110
Total stockholders’ equity	554,207		555,735
Total liabilities and stockholders’ equity	1,628,392		1,553,845
Reportable Legal Entities | Non- Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	18,069		24,553
Restricted cash	178		546
Accounts receivable, net of allowance	155,587		142,690
Inventory, net	62,717		57,381
Costs and estimated earnings in excess of billings on uncompleted contracts			7,256
Contract assets	24,279
Intercompany receivables	379,628		359,766
Other current assets	36,490		32,612
Current assets held for sale			0
Current assets associated with discontinued operations	11,605		23,751
Total current assets	688,553		648,555
Property, plant and equipment, net	597,764		533,609
Investment in affiliates	(316,752)		(275,362)
Deferred income taxes	5,877		5,098
Intangible and other assets, net	54,325		64,762
Long-term assets held for sale			0
Long-term assets associated with discontinued operations	1,661		3,700
Total assets	1,031,428		980,362
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable, trade	32,453		33,471
Accrued liabilities	76,323		59,555
Contract liabilities	71,116
Deferred revenue			21,740
Billings on uncompleted contracts in excess of costs and estimated earnings			563
Intercompany payables	157,545		157,007
Current liabilities associated with discontinued operations	14,767		31,971
Total current liabilities	352,204		304,307
Long-term debt	0		0
Deferred income taxes	6,005		9,746
Long-term contract liabilities	84,137
Long-term deferred revenue			91,856
Other long-term liabilities	28,961		12,190
Long-term liabilities associated with discontinued operations	5,914		6,528
Total liabilities	477,221		424,627
Total stockholders’ equity	554,207		555,735
Total liabilities and stockholders’ equity	1,031,428		980,362
Eliminations
ASSETS
Cash and cash equivalents	0		0
Restricted cash	0		0
Accounts receivable, net of allowance	0		0
Inventory, net	0		0
Costs and estimated earnings in excess of billings on uncompleted contracts			0
Contract assets	0
Intercompany receivables	(538,605)		(518,062)
Other current assets	0		0
Current assets held for sale			0
Current assets associated with discontinued operations	0		0
Total current assets	(538,605)		(518,062)
Property, plant and equipment, net	0		0
Investment in affiliates	(1,108,414)		(1,111,470)
Deferred income taxes	0		0
Intangible and other assets, net	0		0
Long-term assets held for sale			0
Long-term assets associated with discontinued operations	0		0
Total assets	(1,647,019)		(1,629,532)
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable, trade	0		0
Accrued liabilities	0		0
Contract liabilities	0
Deferred revenue			0
Billings on uncompleted contracts in excess of costs and estimated earnings			0
Intercompany payables	(538,605)		(518,062)
Current liabilities associated with discontinued operations	0		0
Total current liabilities	(538,605)		(518,062)
Long-term debt	0		0
Deferred income taxes	0		0
Long-term contract liabilities	0
Long-term deferred revenue			0
Other long-term liabilities	0		0
Long-term liabilities associated with discontinued operations	0		0
Total liabilities	(538,605)		(518,062)
Total stockholders’ equity	(1,108,414)		(1,111,470)
Total liabilities and stockholders’ equity	$ (1,647,019)		$ (1,629,532)

Supplemental Guarantor Financ_5

Supplemental Guarantor Financial Information - Condensed Consolidating Statement of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Income Statements, Captions [Line Items]
Revenues	$ 332,153	$ 334,849	$ 343,471	$ 350,383	$ 337,689	$ 314,479	$ 317,701	$ 245,425	$ 1,360,856	$ 1,215,294	$ 905,397
Cost of sales (excluding depreciation and amortization expense):									977,428	868,154	596,406
Selling, general and administrative									178,401	176,318	157,485
Depreciation and amortization									123,922	107,824	132,886
Long-lived asset impairment									3,858	5,700	14,495
Restatement related recoveries, net									(276)	3,419	18,879
Restructuring and other charges									1,997	3,189	22,038
Interest expense									29,217	34,826	34,181
Intercompany charges, net									0	0	0
Equity in income of non-consolidated affiliates (Note 9)									0	0	(10,403)
Other (income) expense, net									6,484	(975)	(13,046)
Income (loss) before income taxes									39,825	16,839	(47,524)
Provision for income taxes									39,433	22,695	124,242
Income (loss) from continuing operations	(5,273)	3,196	(1,469)	3,938	2,083	1,214	3,170	(12,323)	392	(5,856)	(171,766)
Income (loss) from discontinued operations, net of tax	19,346	2,173	1,544	1,399	4,579	2,139	374	32,644	24,462	39,736	(56,171)
Net income (loss)	$ 14,073	$ 5,369	$ 75	$ 5,337	$ 6,662	$ 3,353	$ 3,544	$ 20,321	24,854	33,880	(227,937)
Other comprehensive income (loss)									(7,476)	(1,801)	18,310
Comprehensive income (loss)									17,378	32,079	(209,627)
Reportable Legal Entities | Parent Guarantor
Condensed Income Statements, Captions [Line Items]
Revenues									0	0	0
Cost of sales (excluding depreciation and amortization expense):									0	0	0
Selling, general and administrative									1,285	2,327	912
Depreciation and amortization									0	0	0
Long-lived asset impairment									0	0	0
Restatement related recoveries, net									0	0	141
Restructuring and other charges									0	0	0
Interest expense									0	0	0
Intercompany charges, net									0	0	0
Equity in income of non-consolidated affiliates (Note 9)									(25,986)	(36,207)	226,873
Other (income) expense, net									(153)	0	0
Income (loss) before income taxes									24,854	33,880	(227,926)
Provision for income taxes									0	0	11
Income (loss) from continuing operations									24,854	33,880	(227,937)
Income (loss) from discontinued operations, net of tax									0	0	0
Net income (loss)									24,854	33,880	(227,937)
Other comprehensive income (loss)									(7,476)	(1,801)	18,310
Comprehensive income (loss)									17,378	32,079	(209,627)
Reportable Legal Entities | Issuers
Condensed Income Statements, Captions [Line Items]
Revenues									927,849	838,981	493,428
Cost of sales (excluding depreciation and amortization expense):									771,731	716,002	399,800
Selling, general and administrative									86,208	84,111	84,550
Depreciation and amortization									35,754	35,749	56,043
Long-lived asset impairment									3,081	5,700	11,414
Restatement related recoveries, net									(276)	3,250	18,574
Restructuring and other charges									0	2,145	18,640
Interest expense									28,763	32,399	33,751
Intercompany charges, net									6,647	6,355	3,576
Equity in income of non-consolidated affiliates (Note 9)									(32,753)	(85,335)	22,869
Other (income) expense, net									(4,625)	(2,577)	(1,056)
Income (loss) before income taxes									33,319	41,182	(154,733)
Provision for income taxes									7,333	4,974	72,139
Income (loss) from continuing operations									25,986	36,208	(226,872)
Income (loss) from discontinued operations, net of tax									0	0	0
Net income (loss)									25,986	36,208	(226,872)
Other comprehensive income (loss)									(7,476)	(1,801)	18,310
Comprehensive income (loss)									18,510	34,407	(208,562)
Reportable Legal Entities | Non- Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenues									521,879	495,262	503,643
Cost of sales (excluding depreciation and amortization expense):									294,569	271,101	288,280
Selling, general and administrative									90,908	89,880	72,023
Depreciation and amortization									88,168	72,075	76,843
Long-lived asset impairment									777	0	3,081
Restatement related recoveries, net									0	169	164
Restructuring and other charges									1,997	1,044	3,398
Interest expense									454	2,427	430
Intercompany charges, net									(6,647)	(6,355)	(3,576)
Equity in income of non-consolidated affiliates (Note 9)									6,767	49,128	204,004
Other (income) expense, net									11,262	1,602	(11,990)
Income (loss) before income taxes									33,624	14,191	(129,014)
Provision for income taxes									32,100	17,721	52,092
Income (loss) from continuing operations									1,524	(3,530)	(181,106)
Income (loss) from discontinued operations, net of tax									24,462	39,736	(56,171)
Net income (loss)									25,986	36,206	(237,277)
Other comprehensive income (loss)									(7,476)	(1,801)	18,310
Comprehensive income (loss)									18,510	34,405	(218,967)
Eliminations
Condensed Income Statements, Captions [Line Items]
Revenues									(88,872)	(118,949)	(91,674)
Cost of sales (excluding depreciation and amortization expense):									(88,872)	(118,949)	(91,674)
Selling, general and administrative									0	0	0
Depreciation and amortization									0	0	0
Long-lived asset impairment									0	0	0
Restatement related recoveries, net									0	0	0
Restructuring and other charges									0	0	0
Interest expense									0	0	0
Intercompany charges, net									0	0	0
Equity in income of non-consolidated affiliates (Note 9)									51,972	72,414	(464,149)
Other (income) expense, net									0	0	0
Income (loss) before income taxes									(51,972)	(72,414)	464,149
Provision for income taxes									0	0	0
Income (loss) from continuing operations									(51,972)	(72,414)	464,149
Income (loss) from discontinued operations, net of tax									0	0	0
Net income (loss)									(51,972)	(72,414)	464,149
Other comprehensive income (loss)									14,952	3,602	(36,620)
Comprehensive income (loss)									$ (37,020)	$ (68,812)	$ 427,529

Supplemental Guarantor Financ_6

Supplemental Guarantor Financial Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net cash provided by (used in) continuing operations	$ 153,296	$ 150,420	$ 262,489
Net cash provided by discontinued operations	4,004	(1,794)	1,016
Net cash provided by operating activities	157,300	148,626	263,505
Cash flows from investing activities:
Capital expenditures	(215,108)	(131,673)	(73,670)
Proceeds from sale of property, plant and equipment	2,530	8,866	2,814
Proceeds from sale of business	5,000	894	0
Intercompany transfers	0	0	0
Return of investments in non-consolidated affiliates	0	0	10,403
Settlement of foreign currency derivatives	0	0	(709)
Net cash used in continuing operations	(207,578)	(121,913)	(61,162)
Net cash provided by discontinued operations	17,009	19,575	36,079
Net cash used in investing activities	(190,569)	(102,338)	(25,083)
Cash flows from financing activities:
Proceeds from borrowings of debt	585,014	501,088	430,758
Repayments of debt	(550,497)	(476,503)	(610,261)
Intercompany transfers	0	0	0
Cash transfer to Archrock, Inc.	(18,744)	(44,720)	(49,176)
Payments for debt issuance costs	(4,801)	(7,911)	(779)
Proceeds from stock options exercised	548	684	786
Purchases of treasury stock	(4,623)	(4,792)	(2,091)
Net cash provided by (used in) financing activities	6,897	(32,154)	(230,763)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(3,841)	(792)	(1,832)
Net increase (decrease) in cash, cash equivalents and restricted cash	(30,213)	13,342	5,827
Cash, cash equivalents and restricted cash at beginning of period	49,691	36,349	30,522
Cash, cash equivalents and restricted cash at end of period	19,478	49,691	36,349
Reportable Legal Entities | Parent Guarantor
Cash flows from operating activities:
Net cash provided by (used in) continuing operations	(494)	(476)	(53)
Net cash provided by discontinued operations	0	0	0
Net cash provided by operating activities	(494)	(476)	(53)
Cash flows from investing activities:
Capital expenditures	0	0	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of business	0	0
Intercompany transfers	0	0	0
Return of investments in non-consolidated affiliates			0
Settlement of foreign currency derivatives			0
Net cash used in continuing operations	0	0	0
Net cash provided by discontinued operations	0	0	0
Net cash used in investing activities	0	0	0
Cash flows from financing activities:
Proceeds from borrowings of debt	0	0	0
Repayments of debt	0	0	0
Intercompany transfers	143	742	147
Cash transfer to Archrock, Inc.	0	0	0
Payments for debt issuance costs	0	0	0
Proceeds from stock options exercised	0	0	0
Purchases of treasury stock	0	0	0
Net cash provided by (used in) financing activities	143	742	147
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0	0
Net increase (decrease) in cash, cash equivalents and restricted cash	(351)	266	94
Cash, cash equivalents and restricted cash at beginning of period	397	131	37
Cash, cash equivalents and restricted cash at end of period	46	397	131
Reportable Legal Entities | Issuers
Cash flows from operating activities:
Net cash provided by (used in) continuing operations	21,192	74,003	84,164
Net cash provided by discontinued operations	0	0	0
Net cash provided by operating activities	21,192	74,003	84,164
Cash flows from investing activities:
Capital expenditures	(91,027)	(54,527)	(26,670)
Proceeds from sale of property, plant and equipment	106	3,809	1,488
Proceeds from sale of business	5,000	894
Intercompany transfers	(143)	(742)	(147)
Return of investments in non-consolidated affiliates			0
Settlement of foreign currency derivatives			(709)
Net cash used in continuing operations	(86,064)	(50,566)	(26,038)
Net cash provided by discontinued operations	0	0	0
Net cash used in investing activities	(86,064)	(50,566)	(26,038)
Cash flows from financing activities:
Proceeds from borrowings of debt	585,014	501,088	430,758
Repayments of debt	(550,497)	(476,503)	(610,261)
Intercompany transfers	34,965	16,267	188,180
Cash transfer to Archrock, Inc.	(18,744)	(44,720)	(49,176)
Payments for debt issuance costs	(4,801)	(7,911)	(779)
Proceeds from stock options exercised	548	684	786
Purchases of treasury stock	(4,623)	(4,792)	(2,091)
Net cash provided by (used in) financing activities	41,862	(15,887)	(42,583)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0	0
Net increase (decrease) in cash, cash equivalents and restricted cash	(23,010)	7,550	15,543
Cash, cash equivalents and restricted cash at beginning of period	24,195	16,645	1,102
Cash, cash equivalents and restricted cash at end of period	1,185	24,195	16,645
Reportable Legal Entities | Non- Guarantor Subsidiaries
Cash flows from operating activities:
Net cash provided by (used in) continuing operations	132,598	76,893	178,378
Net cash provided by discontinued operations	4,004	(1,794)	1,016
Net cash provided by operating activities	136,602	75,099	179,394
Cash flows from investing activities:
Capital expenditures	(124,081)	(77,146)	(47,000)
Proceeds from sale of property, plant and equipment	2,424	5,057	1,326
Proceeds from sale of business	0	0
Intercompany transfers	(34,965)	(16,267)	(188,180)
Return of investments in non-consolidated affiliates			10,403
Settlement of foreign currency derivatives			0
Net cash used in continuing operations	(156,622)	(88,356)	(223,451)
Net cash provided by discontinued operations	17,009	19,575	36,079
Net cash used in investing activities	(139,613)	(68,781)	(187,372)
Cash flows from financing activities:
Proceeds from borrowings of debt	0	0	0
Repayments of debt	0	0	0
Intercompany transfers	0	0	0
Cash transfer to Archrock, Inc.	0	0	0
Payments for debt issuance costs	0	0	0
Proceeds from stock options exercised	0	0	0
Purchases of treasury stock	0	0	0
Net cash provided by (used in) financing activities	0	0	0
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(3,841)	(792)	(1,832)
Net increase (decrease) in cash, cash equivalents and restricted cash	(6,852)	5,526	(9,810)
Cash, cash equivalents and restricted cash at beginning of period	25,099	19,573	29,383
Cash, cash equivalents and restricted cash at end of period	18,247	25,099	19,573
Eliminations
Cash flows from operating activities:
Net cash provided by (used in) continuing operations	0	0	0
Net cash provided by discontinued operations	0	0	0
Net cash provided by operating activities	0	0	0
Cash flows from investing activities:
Capital expenditures	0	0	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of business	0	0
Intercompany transfers	35,108	17,009	188,327
Return of investments in non-consolidated affiliates			0
Settlement of foreign currency derivatives			0
Net cash used in continuing operations	35,108	17,009	188,327
Net cash provided by discontinued operations	0	0	0
Net cash used in investing activities	35,108	17,009	188,327
Cash flows from financing activities:
Proceeds from borrowings of debt	0	0	0
Repayments of debt	0	0	0
Intercompany transfers	(35,108)	(17,009)	(188,327)
Cash transfer to Archrock, Inc.	0	0	0
Payments for debt issuance costs	0	0	0
Proceeds from stock options exercised	0	0	0
Purchases of treasury stock	0	0	0
Net cash provided by (used in) financing activities	(35,108)	(17,009)	(188,327)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0	0
Net increase (decrease) in cash, cash equivalents and restricted cash	0	0	0
Cash, cash equivalents and restricted cash at beginning of period	0	0	0
Cash, cash equivalents and restricted cash at end of period	$ 0	$ 0	$ 0

Subsequent Event (Details)

Subsequent Event (Details)	Feb. 20, 2019USD ($)
Common Stock | Subsequent Event
Subsequent Event [Line Items]
Authorized amount of stock repurchase	$ 100,000,000

SCHEDULE II VALUATION AND QUA_2

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for doubtful accounts deducted from accounts receivable in the balance sheets
Valuation and qualifying accounts
Balance at Beginning of Period	$ 5,388	$ 5,383	$ 2,868
Charged to Costs and Expenses	86	863	2,972
Deductions	0	858	457
Balance at End of Period	5,474	5,388	5,383
Allowance for obsolete and slow moving inventory deducted from inventories in the balance sheets
Valuation and qualifying accounts
Balance at Beginning of Period	10,351	12,877	14,486
Charged to Costs and Expenses	87	1,276	756
Deductions	392	3,802	2,365
Balance at End of Period	10,046	10,351	12,877
Allowance for deferred tax assets not expected to be realized
Valuation and qualifying accounts
Balance at Beginning of Period	222,049	276,230	142,960
Charged to Costs and Expenses	12,648	4,343	144,852
Deductions	34,592	58,524	11,582
Balance at End of Period	$ 200,105	$ 222,049	$ 276,230

Uncategorized Items - extn-2018

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 0
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(10,021,000)
Additional Paid-in Capital [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	138,000
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(138,000)
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (10,021,000)