Archrock (AROC) 10-Q 31 Jul 20 2020 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2020	Jul. 24, 2020
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Commission File Number	001-33666
Entity Registrant Name	Archrock, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-3204509
Entity Street Address	9807 Katy Freeway
Entity Suite Number	Suite 100
Entity City	Houston
Entity State	TX
Entity Postal Zip Code	77024
City Area Code	281
Local Phone Number	836-8000
Title of each class	Common stock, $0.01 par value per share
Trading Symbol	AROC
Name of exchange on which registered	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		152,949,352
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001389050
Amendment Flag	false
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,205	$ 3,685
Accounts receivable, trade, net of allowance of $3,630 and $2,210, respectively	124,587	144,865
Inventory	70,991	74,467
Other current assets	11,106	9,186
Total current assets	208,889	232,203
Property, plant and equipment, net	2,486,074	2,559,398
Operating lease ROU assets	20,203	17,901
Goodwill, net		100,598
Intangible assets, net	69,603	77,471
Contract costs, net	37,055	42,927
Deferred tax assets	63,975	36,642
Other assets	30,285	29,934
Noncurrent assets associated with discontinued operations	12,309	12,901
Total assets	2,928,393	3,109,975
Current liabilities:
Accounts payable, trade	35,545	60,215
Accrued liabilities	78,936	67,845
Deferred revenue	5,598	10,683
Total current liabilities	120,079	138,743
Long-term debt	1,807,937	1,842,549
Operating lease liabilities	17,993	16,094
Deferred tax liabilities	1,017	1,289
Other liabilities	21,965	16,829
Noncurrent liabilities associated with discontinued operations	8,529	8,508
Total liabilities	1,977,520	2,024,012
Commitments and contingencies (Note 20)
Equity:
Preferred stock: $0.01 par value per share, 50,000,000 shares authorized, zero issued
Common stock: $0.01 par value per share, 250,000,000 shares authorized, 159,810,336 and 158,636,918 shares issued, respectively	1,598	1,587
Additional paid-in capital	3,419,512	3,412,509
Accumulated other comprehensive loss	(6,908)	(1,387)
Accumulated deficit	(2,380,626)	(2,244,877)
Treasury stock: 6,860,984 and 6,702,602 common shares, at cost, respectively	(82,703)	(81,869)
Total equity	950,873	1,085,963
Total liabilities and equity	$ 2,928,393	$ 3,109,975

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 3,630	$ 2,210
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares issued (in shares)	159,810,336	158,636,918
Treasury stock, common shares (in shares)	6,860,984	6,702,602

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue:
Revenues	$ 220,316	$ 238,390	$ 470,013	$ 474,549
Total cost of sales (excluding depreciation and amortization)	92,076	112,736	205,718	231,373
Selling, general and administrative	28,745	28,618	59,371	57,607
Depreciation and amortization	48,849	45,482	98,671	89,588
Long-lived asset impairment	55,210	8,632	61,405	11,724
Goodwill impairment			99,830
Restatement and other charges		24		445
Restructuring costs	2,408		4,136
Interest expense	25,778	25,954	55,443	49,571
Debt extinguishment loss	3,971	3,653	3,971	3,653
Transaction-related costs		2,687		2,867
(Gain) loss on sale of assets, net	2,189	(1,801)	(1,927)	(1,785)
Other income, net	(438)	(209)	(993)	(430)
Income (loss) before income taxes	(38,472)	12,614	(115,612)	29,936
Provision for (benefit from) income taxes	(8,091)	1,191	(24,044)	(1,216)
Income (loss) from continuing operations	(30,381)	11,423	(91,568)	31,152
Loss from discontinued operations, net of tax				(273)
Net income (loss)	$ (30,381)	$ 11,423	$ (91,568)	$ 30,879
Basic and diluted net income (loss) per common share (in dollars per share)	$ (0.20)	$ 0.09	$ (0.61)	$ 0.24
Weighted average common shares outstanding:
Basic (in shares)	150,743	128,328	150,628	128,261
Diluted (in shares)	150,743	128,354	150,628	128,297
Contract Operations
Revenue:
Revenues	$ 187,949	$ 186,258	$ 394,923	$ 368,765
Total cost of sales (excluding depreciation and amortization)	63,390	70,521	142,041	145,256
Aftermarket Services
Revenue:
Revenues	32,367	52,132	75,090	105,784
Total cost of sales (excluding depreciation and amortization)	$ 28,686	$ 42,215	$ 63,677	$ 86,117

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (30,381)	$ 11,423	$ (91,568)	$ 30,879
Other comprehensive income (loss), net of tax:
Interest rate swap gain (loss), net of reclassifications to earnings	265	(5,320)	(5,521)	(8,545)
Other comprehensive income (loss)	265	(5,320)	(5,521)	(8,545)
Comprehensive income (loss)	$ (30,116)	$ 6,103	$ (97,089)	$ 22,334

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated DeficitCumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit	Treasury Stock	Cumulative Effect, Period of Adoption, Adjustment	Total
Beginning balance at Dec. 31, 2018	$ 1,358	$ 3,177,982	$ 5,773		$ (2,263,677)	$ (79,862)		$ 841,574
Beginning, shares at Dec. 31, 2018	135,787,509					(6,381,605)
Increase (Decrease) in Stockholders' Equity
Treasury stock purchased						$ (857)		(857)
Treasury stock purchased, shares						(87,036)
Cash dividends					(34,437)			(34,437)
Shares issued in employee stock purchase plan		407						407
Shares issued in employee stock purchase plan, shares	48,801
Stock-based compensation, net of forfeitures	$ 11	3,858						3,869
Stock-based compensation, net of forfeitures, shares	1,062,987					(108,917)
Comprehensive income (loss)
Net income (loss)					30,879			30,879
Interest rate swap gain (loss), net of reclassifications to earnings			(8,545)					(8,545)
Ending balance at Jun. 30, 2019	$ 1,369	3,182,247	(2,772)		(2,267,235)	$ (80,719)		832,890
Ending, shares at Jun. 30, 2019	136,899,297					(6,577,558)
Beginning balance at Mar. 31, 2019	$ 1,369	3,180,546	2,548		(2,261,452)	$ (80,719)		842,292
Beginning, shares at Mar. 31, 2019	136,876,352					(6,484,075)
Increase (Decrease) in Stockholders' Equity
Cash dividends					(17,206)			(17,206)
Shares issued in employee stock purchase plan		189						189
Shares issued in employee stock purchase plan, shares	19,073
Stock-based compensation, net of forfeitures		1,512						1,512
Stock-based compensation, net of forfeitures, shares	3,872					(93,483)
Comprehensive income (loss)
Net income (loss)					11,423			11,423
Interest rate swap gain (loss), net of reclassifications to earnings			(5,320)					(5,320)
Ending balance at Jun. 30, 2019	$ 1,369	3,182,247	(2,772)		(2,267,235)	$ (80,719)		832,890
Ending, shares at Jun. 30, 2019	136,899,297					(6,577,558)
Beginning balance at Dec. 31, 2019	$ 1,587	3,412,509	(1,387)	$ 166	(2,244,877)	$ (81,869)	$ 166	1,085,963
Beginning, shares at Dec. 31, 2019	158,636,918					(6,702,602)
Increase (Decrease) in Stockholders' Equity
Treasury stock purchased						$ (834)		(834)
Treasury stock purchased, shares						(96,157)
Cash dividends					(44,347)			(44,347)
Shares issued in employee stock purchase plan	$ 1	366						367
Shares issued in employee stock purchase plan, shares	110,255
Stock-based compensation, net of forfeitures	$ 10	5,959						5,969
Stock-based compensation, net of forfeitures, shares	1,063,163					(62,225)
Contribution from Exterran Corporation		678						678
Comprehensive income (loss)
Net income (loss)					(91,568)			(91,568)
Interest rate swap gain (loss), net of reclassifications to earnings			(5,521)					(5,521)
Ending balance at Jun. 30, 2020	$ 1,598	3,419,512	(6,908)		(2,380,626)	$ (82,703)		950,873
Ending, shares at Jun. 30, 2020	159,810,336					(6,860,984)
Beginning balance at Mar. 31, 2020	$ 1,598	3,415,784	(7,173)		(2,328,069)	$ (82,668)		999,472
Beginning, shares at Mar. 31, 2020	159,756,498					(6,830,407)
Increase (Decrease) in Stockholders' Equity
Treasury stock purchased						$ (35)		(35)
Treasury stock purchased, shares						(5,563)
Cash dividends					(22,176)			(22,176)
Shares issued in employee stock purchase plan		165						165
Shares issued in employee stock purchase plan, shares	53,838
Stock-based compensation, net of forfeitures		2,885						2,885
Stock-based compensation, net of forfeitures, shares						(25,014)
Contribution from Exterran Corporation		678						678
Comprehensive income (loss)
Net income (loss)					(30,381)			(30,381)
Interest rate swap gain (loss), net of reclassifications to earnings			265					265
Ending balance at Jun. 30, 2020	$ 1,598	$ 3,419,512	$ (6,908)		$ (2,380,626)	$ (82,703)		$ 950,873
Ending, shares at Jun. 30, 2020	159,810,336					(6,860,984)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parentheticals) - $ / shares	3 Months Ended						6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared and paid per common share (in dollars per share)	$ 0.145	$ 0.145	$ 0.145	$ 0.145	$ 0.132	$ 0.132	$ 0.290	$ 0.264

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (91,568)	$ 30,879
Adjustments to reconcile net income to cash provided by operating activities:
Loss from discontinued operations, net of tax		273
Depreciation and amortization	98,671	89,588
Long-lived asset impairment	61,405	11,724
Goodwill impairment	99,830
Inventory write-downs	695	492
Amortization of operating lease ROU assets	1,627	1,425
Amortization of deferred financing costs	2,856	3,041
Amortization of debt discount	187	545
Debt extinguishment loss	3,971	3,653
Interest rate swaps	928	(802)
Stock-based compensation expense	5,778	3,869
Non-cash restructuring charges	162
Provision for credit losses	2,282	335
(Gain) loss on sale of assets, net	1,245	(1,785)
Gain on March 2020 Disposition	(3,172)
Deferred income tax benefit	(24,117)	(1,819)
Amortization of contract costs	13,656	10,724
Deferred revenue recognized in earnings	(12,762)	(25,227)
Changes in assets and liabilities:
Accounts receivable, trade	17,569	(5,015)
Inventory	2,615	2,160
Other assets	(4,268)	12,817
Contract costs, net	(8,129)	(14,128)
Accounts payable and other liabilities	(10,829)	6,102
Deferred revenue	8,253	19,747
Other	189	65
Net cash provided by operating activities	167,074	148,663
Cash flows from investing activities:
Capital expenditures	(113,289)	(234,972)
Proceeds from March 2020 Disposition	24,179
Proceeds from sale of property, plant and equipment and other assets	5,071	21,954
Proceeds from insurance and other settlements	1,351	676
Net cash used in investing activities	(82,688)	(212,342)
Cash flows from financing activities:
Borrowings of long-term debt	722,500	1,254,000
Repayments of long-term debt	(762,500)	(1,151,000)
Payments for debt issuance costs	(943)	(8,829)
Proceeds from (payments for) settlement of interest rate swaps that include financing elements	(787)	800
Dividends paid to stockholders	(44,347)	(34,437)
Proceeds from stock issued under employee stock purchase plan	367	407
Purchases of treasury stock	(834)	(857)
Contribution from Exterran Corporation	678
Net cash provided by (used in ) financing activities	(85,866)	60,084
Net decrease in cash and cash equivalents	(1,480)	(3,595)
Cash and cash equivalents, beginning of period	3,685	5,610
Cash and cash equivalents, end of period	$ 2,205	$ 2,015

Organization and Basis of Prese

Organization and Basis of Presentation	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Organization and Basis of Presentation	1. Description of Business and Basis of Presentation We are an energy infrastructure company with a pure-play focus on midstream natural gas compression. We are the leading provider of natural gas compression services to customers in the oil and natural gas industry throughout the U.S. and a leading supplier of aftermarket services to customers that own compression equipment in the U.S. We operate in two business segments: contract operations and aftermarket services. Our predominant segment, contract operations, primarily includes designing, sourcing, owning, installing, operating, servicing, repairing and maintaining our owned fleet of natural gas compression equipment to provide natural gas compression services to our customers. In our aftermarket services business, we sell parts and components and provide operations, maintenance, overhaul and reconfiguration services to customers who own compression equipment. The accompanying unaudited condensed consolidated financial statements included herein have been prepared in accordance with GAAP and the rules and regulations of the SEC. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP are not required in these interim financial statements and have been condensed or omitted. Management believes that the information furnished includes all adjustments, consisting of normal recurring adjustments, which are necessary to present fairly our consolidated financial position, results of operations and cash flows for the periods indicated. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements presented in our 2019 Form 10-K, which contains a more comprehensive summary of our accounting policies. The interim results reported herein are not necessarily indicative of results for a full year. Certain prior year amounts have been reclassified to conform to the current year presentation.

Recent Accounting Developments

Recent Accounting Developments	6 Months Ended
	Jun. 30, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Developments	2. Recent Accounting Developments Accounting Standards Updates Implemented Credit Losses In June 2016, the FASB issued ASU 2016-13, which changes the impairment model for financial assets measured at amortized cost and certain other instruments, and requires entities to use a new current expected credit loss model that results in recognition of expected losses over the contractual life of an asset. We adopted ASU 2016-13 on January 1, 2020 using the modified retrospective approach. The adoption resulted in a $0.2 million decrease in our allowance for credit losses and a corresponding pre-tax cumulative effect adjustment to retained earnings in our condensed consolidated balance sheet at January 1, 2020. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. Our financial assets measured at amortized cost consist of cash equivalents and trade receivables from revenue transactions within the scope of ASC 606 Revenue. We believe our temporary cash investments have a zero loss expectation because we maintain minimal balances in our cash investment accounts and have no history of loss. Trade accounts receivable are due from companies of varying size engaged principally in oil and natural gas activities throughout the U.S. 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 the products and services we provide and the terms of our customer agreements. Due to the short-term nature of our trade receivables, we consider the amortized cost to be the same as the carrying amount of the receivable, excluding the allowance for credit losses. We recognize an allowance for credit losses when a receivable is recorded, even when the risk of loss is remote. We utilize an aging schedule to determine our allowance for credit losses, and measure expected credit losses on a collective (pool) basis when similar risk characteristics exist. We rely primarily on ratings assigned by external rating agencies and credit monitoring services to assess credit risk and aggregate customers first by low, medium or high risk asset pools, and then by delinquency status. We also consider the internal risk associated with geographic location and the services we provide to the customer when determining asset pools. If a customer does not share similar risk characteristics with other customers, we evaluate the customer’s outstanding trade receivables for expected credit losses on an individual basis. Trade receivables evaluated individually are not included in our collective assessment. Each reporting period, we reassess our customers’ risk profiles and determine the appropriate asset pool classification, or perform individual assessments of expected credit losses, based on the customers’ risk characteristics at the reporting date. The contractual life of our trade receivables is primarily 30 days based on the payment terms specified in the contract. Contract operations services are generally billed monthly at the beginning of the month in which service is being provided. Aftermarket services billings typically occur when parts are delivered or service is completed. Loss rates are separately determined for each asset pool based on the length of time a trade receivable has been outstanding. We analyze two years of internal historical loss data, including the effects of prepayments, write-offs and subsequent recoveries, to determine our historical loss experience. Our historical loss information is a relevant data point for estimating credit losses, as the data closely aligns with trade receivables due from our customers. Ratings assigned by external rating agencies and credit monitoring services consider past performance and forecasts of future economic conditions in assessing credit risk. We routinely update our historical loss data to reflect our customers’ current risk profile, to ensure the historical data and loss rates are relevant to the pool of assets for which we are estimating expected credit losses. Judgement is used to determine the expected credit loss for customers that do not share similar risk characteristics with other customers, based on customer specific items such as legal proceedings, past experience with the customer and/or ongoing customer negotiations. The following table summarizes the changes in our allowance for credit losses balance during the six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ Balance at December 31, 2019 $ 2,210 Impact of adoption of ASU 2016-13 on January 1, 2020 ​ ​ (216) Provision for credit losses ​ ​ 2,282 Write-offs charged against allowance ​ ​ (646) Balance at June 30, 2020 ​ $ 3,630 ​ Fair Value Measurements On January 1, 2020, we adopted ASU 2018-13, which amends the required fair value measurements disclosures related to valuation techniques and inputs used, uncertainty in measurement and changes in measurements applied. These amendments resulted in new, prospective disclosures of the range and weighted average of the significant unobservable inputs used to develop our Level 3 fair value measurements related to our idle and previously-culled compressors. The adoption of ASU 2018-13 had no impact on our condensed consolidated financial statements. Income Taxes On January 1, 2020, we adopted ASU 2019-12, which simplifies the accounting for income taxes by, among other things, removing certain exceptions related to the incremental approach for intraperiod tax allocation, the year-to-date loss methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities on outside basis differences. ASU 2019-12 also clarifies other aspects of the accounting for income taxes in order to improve consistency of application. The adoption of ASU 2019-12 had no impact on our condensed consolidated financial statements. Accounting Standards Updates Not Yet Implemented Reference Rate Reform In March 2020, the FASB issued ASU 2020-04, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued as a result of reference rate reform. ASU 2020-04 is effective for all entities as of March 12, 2020 through December 31, 2022. Entities may elect to apply the amendments for contract modifications as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020. We are currently assessing the impact that ASU 2020-04 may have on our interest rate swap agreements, Credit Facility and other transactions that may be affected by reference rate reform.

Business Transactions

Business Transactions	6 Months Ended
	Jun. 30, 2020
Business Transactions
Business Transactions	3. Business Transactions March 2020 Disposition On March 1, 2020, we completed the sale of certain contract operations customer service agreements and approximately 200 compressors, comprising approximately 35,000 horsepower, used to provide compression services under those agreements as well as other assets used to support the operations. We allocated customer and contract-related intangible assets and goodwill based on a ratio of the horsepower sold relative to the total horsepower of the asset group. We recognized a gain on the sale of $3.2 million in gain (loss) on sale of assets, net in our condensed consolidated statements of operations during the six months ended June 30, 2020. Elite Acquisition On August 1, 2019, we completed the Elite Acquisition whereby we acquired from Elite Compression substantially all of its assets, including a fleet of predominantly large compressors comprising approximately 430,000 horsepower, vehicles, real property and inventory, and certain liabilities for aggregate consideration consisting of $214.0 million in cash and 21.7 million shares of common stock with an acquisition date fair value of $225.9 million. The cash portion of the acquisition was funded with borrowings on the Credit Facility. The Elite Acquisition was accounted for using the acquisition method, which requires, among other things, assets acquired and liabilities assumed to be recorded at their fair value on the acquisition date. The excess of the consideration transferred over those fair values is recorded as goodwill. The following table summarizes the purchase price allocation based on the estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands): ​ ​ ​ ​ ​ Accounts receivable $ 9,007 Inventory ​ 7,987 Other current assets ​ 608 Property, plant and equipment ​ 286,158 Operating lease ROU assets ​ 682 Goodwill ​ 100,598 Intangible assets ​ 40,237 Accounts payable, trade ​ (2,079) Accrued liabilities ​ (2,973) Operating lease liabilities ​ (326) Purchase price ​ $ 439,899 ​ Our valuation methodology and significant inputs for fair value measurements are detailed by asset class below. The fair value measurements for property, plant and equipment and intangible assets are based on significant inputs that are not observable in the market and therefore represent Level 3 measurements. Goodwill The goodwill resulting from the acquisition is attributable to the expansion of our services in various regions in which we currently operate and was allocated to our contract operations segment. All of the goodwill recorded for this acquisition is expected to be deductible for U.S. federal income tax purposes. Property, Plant and Equipment The property, plant and equipment is primarily comprised of compression equipment that will be depreciated on a straight-line basis over an estimated average remaining useful life of 15 years . The fair value of the property, plant and equipment was determined using the cost approach, whereby we estimated the replacement cost of the assets by evaluating recent purchases of similar assets or published data, and then adjusted replacement cost for physical deterioration and functional and economic obsolescence, as applicable. Intangible Assets The intangible assets consist of customer relationships that have an estimated useful life of 15 years . The amount of intangible assets and their associated useful life were determined based on the period over which the assets are expected to contribute directly or indirectly to our future cash flows. The fair value of the identifiable intangible assets was determined using the multi-period excess earnings method, which is a specific application of the discounted cash flow method, an income approach, whereby we estimated and then discounted the future cash flows of the intangible asset by adjusting overall business revenue for attrition, obsolescence, cost of sales, operating expenses, taxes and the required returns attributable to other contributory assets acquired. Significant estimates made in arriving at expected future cash flows included our expected customer attrition rate and the amount of earnings attributable to the assets. To discount the estimated future cash flows, we utilized a discount rate that was at a premium to our weighted average cost of capital to reflect the less liquid nature of the customer relationships relative to the tangible assets acquired. Unaudited Pro Forma Financial Information Unaudited pro forma financial information for the three and six months ended June 30, 2019 was derived by adjusting our historical financial statements in order to give effect to the assets and liabilities acquired in the Elite Acquisition. The Elite Acquisition is presented in this unaudited pro forma financial information as though the acquisition occurred as of January 1, 2019, and reflects the following: ● the acquisition of substantially all of Elite Compression’s assets, including a compression fleet of approximately 430,000 horsepower, vehicles, real property and inventory, and certain liabilities; and ● borrowings of $214.0 million under the Credit Facility for cash consideration exchanged in the acquisition; and ● the exclusion of $2.5 million of financial advisory, legal and other professional fees incurred related to the acquisition and recorded to transaction-related costs in our condensed consolidated statements of operations during each of the three and six months ended June 30, 2019. The unaudited pro forma financial information below is presented (in thousands) for informational purposes only and is not necessarily indicative of our results of operations that would have occurred had the transaction been consummated at the beginning of the period presented, nor is it necessarily indicative of future results. ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, 2019 June 30, 2019 Revenue ​ $ 257,706 ​ $ 512,271 Net income ​ 15,250 ​ 36,220 ​ The results of operations attributable to the assets and liabilities acquired in the Elite Acquisition have been included in our condensed consolidated financial statements as part of our contract operations segment since the date of acquisition.

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	4. Discontinued Operations In 2015 we completed the Spin-off. In order to effect the Spin-off and govern our relationship with Exterran Corporation after the Spin-off, we entered into several agreements with Exterran Corporation which include, but are not limited to, the separation and distribution agreement and the tax matters agreement. The separation and distribution agreement specifies our right to promptly receive payments from Exterran Corporation based on a notional amount corresponding to payments received by Exterran Corporation from PDVSA in respect of the sale of Exterran Corporation’s previously-nationalized assets after such amounts are collected by Exterran Corporation. During the three months ended June 30, 2020, we received $0.7 million from Exterran Corporation pursuant to this term of the separation and distribution agreement. We also entered into an assignment from Exterran Corporation so that any future payments by PDVSA would be received directly by us. The tax matters agreement governs the respective rights, responsibilities and obligations of Exterran Corporation and us with respect to tax liabilities and benefits, tax attributes, the preparation and filing of tax returns, the control of audits and other tax proceedings and certain other matters regarding taxes. Subject to the provisions of this agreement, we and Exterran Corporation agreed to indemnify the primary obligor of any return for tax periods beginning before and ending before or after the Spin-off (including any ongoing or future amendments and audits for these returns) for the portion of the tax liability (including interest and penalties) that relates to their respective operations reported in the filing. As of both June 30, 2020 and December 31, 2019, we had $8.5 million of unrecognized tax benefits (including interest and penalties) related to Exterran Corporation operations prior to the Spin-off recorded to noncurrent liabilities associated with discontinued operations in our condensed consolidated balance sheets. We had an offsetting indemnification asset of $8.5 million related to these unrecognized tax benefits recorded to noncurrent assets associated with discontinued operations as of both June 30, 2020 and December 31, 2019. The following table presents the balance sheet for our discontinued operations (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Other assets ​ $ 8,529 ​ $ 8,508 Deferred tax assets ​ ​ 3,780 ​ ​ 4,393 Total assets associated with discontinued operations ​ $ 12,309 ​ $ 12,901 ​ ​ ​ ​ ​ ​ ​ Deferred tax liabilities ​ $ 8,529 ​ $ 8,508 Total liabilities associated with discontinued operations ​ $ 8,529 ​ $ 8,508 ​ The following table presents the statements of operations for our discontinued operations (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Other income, net $ (10) $ — $ (20) $ (1,432) Provision for income taxes ​ ​ 10 ​ — ​ 20 ​ 1,705 Loss from discontinued operations, net of tax ​ $ — ​ $ — ​ $ — ​ $ (273) ​

Inventory

Inventory	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Inventory	5. Inventory Inventory consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Parts and supplies ​ $ 64,774 ​ $ 66,121 Work in progress ​ 6,217 ​ 8,346 Inventory ​ $ 70,991 ​ $ 74,467 ​

Property, Plant and Equipment,

Property, Plant and Equipment, Net	6 Months Ended
	Jun. 30, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net	6. Property, Plant and Equipment, Net Property, plant and equipment, net consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Compression equipment, facilities and other fleet assets ​ $ 3,505,096 ​ $ 3,653,930 Land and buildings ​ 51,236 ​ 50,743 Transportation and shop equipment ​ 116,980 ​ 116,057 Computer hardware and software ​ 94,613 ​ 93,695 Other ​ 18,295 ​ 15,308 Property, plant and equipment ​ 3,786,220 ​ 3,929,733 Accumulated depreciation ​ (1,300,146) ​ (1,370,335) Property, plant and equipment, net ​ $ 2,486,074 ​ $ 2,559,398 ​

Goodwill

Goodwill	6 Months Ended
	Jun. 30, 2020
Goodwill
Goodwill	7. Goodwill Our goodwill was recognized in connection with the Elite Acquisition and represents the excess of consideration transferred over the fair value of the assets and liabilities acquired. All of the goodwill was allocated to our contract operations reporting unit. We review the carrying amount of our goodwill in the fourth quarter of every year, or whenever indicators of potential impairment exist, to determine if the carrying amount of our contract operations reporting unit exceeds its fair value, including the goodwill. Beginning in the first quarter of 2020, the COVID-19 pandemic caused a significant deterioration in global macroeconomic conditions, including a collapse in the demand for oil coupled with an oversupply of oil, which commenced substantial spending cuts by our customers and a decline in production. This global response to the pandemic significantly impacted our market capitalization and estimates of future revenues and cash flows, which triggered the need to perform a quantitative test of the fair value of our contract operations reporting unit as of March 31, 2020. The quantitative test determined that the carrying amount of our contract operations reporting unit exceeded its fair value and we recorded a full impairment loss on goodwill in the first quarter as a result. Determining the fair value of a reporting unit is judgmental in nature and involves the use of significant estimates and assumptions, which have a significant impact on the fair value determined. We determine the fair value of our reporting unit using an equal weighting of both the expected present value of future cash flows and a market approach. The present value of future cash flows is estimated using our most recent forecast and the weighted average cost of capital. The market approach uses a market multiple on the earnings before interest expense, provision for income taxes and depreciation and amortization expense of comparable peer companies. Significant estimates for our reporting unit included in our impairment analysis are our cash flow forecasts, our estimate of the market’s weighted average cost of capital and market multiples. The following table presents the change in the carrying amount of goodwill during the six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ Balance at December 31, 2019 ​ $ 100,598 Dispositions ​ ​ (768) Impairment loss ​ (99,830) Balance at June 30, 2020 ​ $ — ​

Hosting Arrangements

Hosting Arrangements	6 Months Ended
	Jun. 30, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Hosting Arrangements	8. Hosting Arrangements In the fourth quarter of 2018 we began a process and technology transformation project that will, among other things, upgrade or replace our existing ERP, supply chain and inventory management systems and expand the remote monitoring capabilities of our compression fleet. Included in this project are hosting arrangements that are service contracts related to the cloud migration of our ERP system and cloud services for our new mobile workforce, telematics and inventory management tools. Certain costs incurred for the implementation of our hosting arrangements that are service contracts are capitalized and amortized on a straight-line basis over the term of the respective contract. Amortization begins in the period in which an individual component becomes ready for its intended use. As of June 30, 2020 and December 31, 2019, we capitalized $7.7 million and $5.5 million, respectively, of implementation costs related to our hosting arrangements that are service contracts to other assets in our condensed consolidated balance sheets. Accumulated amortization was $0.1 million at June 30, 2020. We recorded $0.1 million of amortization expense to SG&A in our condensed consolidated statements of operations

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Long-Term Debt	9. Long-Term Debt Long-term debt consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Credit Facility ​ $ 823,000 ​ $ 513,000 ​ ​ ​ ​ ​ ​ ​ 2028 Notes ​ 500,000 ​ 500,000 Less: Deferred financing costs, net of amortization ​ (7,603) ​ (8,090) ​ ​ 492,397 ​ 491,910 ​ ​ ​ ​ ​ ​ ​ 2027 Notes ​ ​ 500,000 ​ 500,000 Less: Deferred financing costs, net of amortization ​ ​ (7,460) ​ (7,999) ​ ​ ​ 492,540 ​ 492,001 ​ ​ ​ ​ ​ ​ ​ 2022 Notes ​ — ​ 350,000 Less: Debt discount, net of amortization ​ — ​ (2,046) Less: Deferred financing costs, net of amortization ​ — ​ (2,316) ​ ​ — ​ 345,638 ​ ​ ​ ​ ​ ​ ​ Long-term debt ​ $ 1,807,937 ​ $ 1,842,549 ​ Credit Facility As of June 30, 2020, there were $12.4 million letters of credit outstanding under the Credit Facility and the applicable margin on borrowings outstanding was 2.5%. The weighted average annual interest rate on the outstanding balance under the Credit Facility, excluding the effect of interest rate swaps, was 2.7% and 4.3% at June 30, 2020 and December 31, 2019, respectively. We incurred $0.4 million and $0.6 million in commitment fees on the daily unused amount of the Credit Facility during the three months ended June 30, 2020 and 2019, respectively, and $1.1 million during each of the six months ended June 30, 2020 and 2019. We must maintain certain consolidated financial ratios as defined in our Credit Facility agreement. As of June 30, 2020, the ratio requirements did not constrain our undrawn capacity and as such, $414.6 million was available for additional borrowings. As of June 30, 2020, we were in compliance with all covenants under the Credit Facility agreement. 2022 Notes Redemption On April 1, 2020, the 2022 Notes were redeemed at 100% of their $350.0 million aggregate principal amount plus accrued and unpaid interest of $10.5 million with borrowings from the Credit Facility. A debt extinguishment loss of $4.0 million related to the redemption was recognized during the three and six months ended June 30, 2020.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	10. Accumulated Other Comprehensive Income (Loss) Components of comprehensive income (loss) are net income (loss) and all changes in equity during a period except those resulting from transactions with owners. Our accumulated other comprehensive income (loss) consists of changes in the fair value of our interest rate swap derivative instruments, net of tax, which are designated as cash flow hedges. The following table presents the changes in accumulated other comprehensive income (loss) of our derivative cash flow hedges, net of tax, during the three and six months ended June 30, 2020 and 2019 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Beginning accumulated other comprehensive income (loss) ​ $ (7,173) ​ $ 2,548 ​ $ (1,387) ​ $ 5,773 Loss recognized in other comprehensive income (loss), net of tax benefit of $155, $0, $1,745 and $0, respectively (1) ​ (583) ​ (4,529) ​ (6,566) ​ (6,828) (Gain) loss reclassified from accumulated other comprehensive income (loss) to interest expense, net of tax benefit of $225, $0, $277 and $0, respectively (1) ​ 848 ​ (791) ​ 1,045 ​ (1,717) Other comprehensive income (loss) ​ 265 ​ (5,320) ​ (5,521) ​ (8,545) Ending accumulated other comprehensive loss ​ $ (6,908) ​ $ (2,772) ​ $ (6,908) ​ $ (2,772) (1) Includes adjustments of $1.1 million and $1.8 million related to an increase in the valuation allowance recorded to offset the tax effect of other comprehensive loss recorded during the three and six months ended June 30, 2019, respectively. See Note 17 (“Derivatives”) for further details on our interest rate swap derivative instruments.

Equity

Equity	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Equity	11. Equity Cash Dividends The following table summarizes our dividends declared and paid in each of the quarterly periods of 2020 and 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ Declared Dividends Dividends Paid ​ per Common Share (in thousands) 2020 ​ ​ Q1 ​ $ 0.145 ​ $ 22,171 Q2 ​ ​ 0.145 ​ ​ 22,176 ​ ​ ​ ​ ​ ​ ​ 2019 ​ ​ Q1 ​ $ 0.132 ​ $ 17,231 Q2 ​ 0.132 ​ 17,206 Q3 ​ 0.145 ​ 22,062 Q4 ​ 0.145 ​ 22,031 ​ On July 29, 2020, our Board of Directors declared a quarterly dividend of $0.145 per share of common stock to be paid on August 14, 2020 to stockholders of record at the close of business on August 10, 2020.

Revenue from Contract with Cust

Revenue from Contract with Customers	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	12. Revenue from Contracts with Customers The following table presents our revenue from contracts with customers disaggregated by revenue source (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Contract operations (1) : ​ ​ ​ ​ ​ ​ ​ ​ 0 - 1,000 horsepower per unit ​ $ 57,728 ​ $ 63,683 ​ $ 124,468 ​ $ 127,422 1,001 - 1,500 horsepower per unit ​ 78,026 ​ 75,598 ​ 162,878 ​ 149,938 Over 1,500 horsepower per unit ​ 51,618 ​ 45,969 ​ 106,209 ​ 89,394 Other (2) ​ 577 ​ 1,008 ​ 1,368 ​ 2,011 Total contract operations (3) ​ 187,949 ​ 186,258 ​ 394,923 ​ 368,765 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Aftermarket services (1) : ​ ​ ​ ​ Services ​ 19,081 ​ 33,281 ​ 44,531 ​ 66,802 OTC parts and components sales ​ 13,286 ​ 18,851 ​ 30,559 ​ 38,982 Total aftermarket services (4) ​ 32,367 ​ 52,132 ​ 75,090 ​ 105,784 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total revenue ​ $ 220,316 ​ $ 238,390 ​ $ 470,013 ​ $ 474,549 (1) We operate in two segments: contract operations and aftermarket services. See Note 22 (“Segments”) for further details regarding our segments. (2) Primarily relates to fees associated with owned non-compression equipment. (3) Includes $1.5 million and $2.2 million for the three months ended June 30, 2020 and 2019, respectively, and $3.1 million and $4.4 million for the six months ended June 30, 2020 and 2019, respectively, related to billable maintenance on owned compressors that was recognized at a point in time. All other contract operations revenue is recognized over time. (4) All service revenue within aftermarket services is recognized over time. All OTC parts and components sales revenue is recognized at a point in time. Performance Obligations As of June 30, 2020, we had $416.8 million of remaining performance obligations related to our contract operations segment. We do not consider the effects of the time value of money, as the expected time between the transfer of services and payment for such services is less than one year. Our remaining performance obligations will be recognized through 2025 as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2021 2022 2023 2024 2025 Total Remaining performance obligations ​ $ 172,639 ​ $ 170,084 ​ $ 65,438 ​ $ 7,532 ​ $ 1,030 ​ $ 79 ​ $ 416,802 ​ We do not disclose the aggregate transaction price for the remaining performance obligations for aftermarket services as there are no contracts with customers with an original contract term that is greater than one year. Contract Assets and Liabilities As of June 30, 2020 and December 31, 2019, our receivables from contracts with customers, net of allowance for credit losses, were $118.8 million and $139.4 million, respectively. Freight billings to customers for the transport of compression assets, customer-specified modifications of compression assets and milestone billings on aftermarket services often result in a contract liability. As of June 30, 2020 and December 31, 2019, our contract liabilities were $6.9 million and $11.4 million, respectively, which were included in deferred revenue and other liabilities in our condensed consolidated balance sheets. The decrease in the contract liability balance during the six months ended June 30, 2020 was primarily due to $12.8 million recognized as revenue during the period, partially offset by revenue deferral of $8.3 million, each primarily related to freight billings and milestone billings on aftermarket services.

Long-Lived Asset Impairment

Long-Lived Asset Impairment	6 Months Ended
	Jun. 30, 2020
Asset Impairment Charges [Abstract]
Long-Lived Asset Impairment	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 compressors from our active fleet, indicate that the carrying amount of an asset may not be recoverable. We periodically review the future deployment of our idle compression assets for units that are not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on these reviews, we determine that certain idle compressors should be retired from the active fleet. The retirement of these units from the active fleet triggers a review of these assets for impairment and as a result of our review, we may record an asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit is estimated based on the expected net sale proceeds compared to other fleet units we recently sold, a review of other units recently offered for sale by third parties or the estimated component value of the equipment we plan to use. In connection with our review of our idle compression assets, we evaluate for impairment idle units that were culled from our fleet in prior years and are available for sale. Based on that review, we may reduce the expected proceeds from disposition and record additional impairment to reduce the book value of each unit to its estimated fair value. In the first quarter of 2020, we determined that the impairment of our contract operations reporting unit’s goodwill was an indicator of potential impairment of the carrying amount of our long-lived assets, including our compressor fleet and associated customer and contract-based intangible assets. Accordingly, we performed a quantitative impairment test of our long-lived assets, by which we determined that they were not also impaired. No similar impairment has been indicated subsequent to the first quarter. The following table presents the results of our impairment review as recorded to our contract operations segment (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Idle compressors retired from the active fleet ​ 450 ​ 160 ​ 535 ​ 180 Horsepower of idle compressors retired from the active fleet ​ 184,000 ​ 41,000 ​ 207,000 ​ 56,000 Impairment recorded on idle compressors retired from the active fleet ​ $ 55,210 ​ $ 8,632 ​ $ 61,405 ​ $ 11,724 ​ ​

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jun. 30, 2020
Restructuring Charges
Restructuring Charges	14. Restructuring Charges During the first quarter of 2020, we completed a series of restructuring activities to further streamline our organization and more fully align our teams to improve our customer service and profitability. We began additional restructuring activities in the second quarter in response to the decreased activity level of our customers that resulted from the COVID-19 pandemic. We incurred severance costs of $2.4 million and $4.1 million during the three and six months ended June 30, 2020, respectively, which are reflected as restructuring charges in our condensed consolidated statements of operations. The following table presents the changes to our accrued liability balance related to restructuring charges during the six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ Balance at December 31, 2019 ​ $ — Severance costs ​ 3,974 Non-cash expense ​ ​ 162 Payments ​ ​ (2,885) Balance at June 30, 2020 ​ $ 1,251 ​ The following table presents, by segment, the restructuring charges incurred during the three and six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Contract ​ Aftermarket ​ ​ ​ ​ ​ ​ Operations ​ Services ​ Other (1) ​ Total Three months ended June 30, 2020 ​ $ 1,386 ​ $ 286 ​ $ 736 ​ $ 2,408 Six months ended June 30, 2020 ​ ​ 1,864 ​ ​ 911 ​ ​ 1,361 ​ ​ 4,136 (1) Represents expense incurred within our corporate function and not directly attributable to our segments. ​ We are not currently able to estimate the amount of total costs to be incurred related to the restructuring activities commenced as a result of the COVID-19 pandemic, as the magnitude and duration of the pandemic and its impact on our operations remain difficult to predict.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	15. Income Taxes CARES Act On March 27, 2020, President Trump signed into law the CARES Act, which includes, among other things, refundable payroll tax credits, deferment of employer side social security payments, NOL carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations and technical corrections to tax depreciation methods for qualified improvement property. The CARES Act provisions did not have a material impact on our condensed consolidated financial statements. Future regulatory guidance under the CARES Act or additional legislation enacted by Congress in connection with the COVID-19 pandemic could impact our tax provision in future periods. Valuation Allowance The amount of our deferred tax assets considered realizable could be adjusted if projections of future taxable income are reduced or objective negative evidence in the form of a three-year cumulative loss is present or both. Should we no longer have a level of sustained profitability, excluding nonrecurring charges, we will have to rely more on our future projections of taxable income to determine if we have an adequate source of taxable income for the realization of our deferred tax assets, namely NOL carryforwards and tax credit carryforwards. This may result in the need to record a valuation allowance against all or a portion of our deferred tax assets. Effective Tax Rate We have historically calculated the provision for (benefit from) income taxes during interim reporting periods by applying a full year estimated AETR to income (loss) before income taxes, excluding infrequent or unusual discrete items, for the reporting period. For the six months ended June 30, 2020, we determined that using an AETR would not provide a reliable estimate of income taxes due to small changes in our projected income (loss) before income taxes resulting in significant changes in the estimated AETR. Thus, we concluded to use a discrete effective tax rate, which treats the year-to-date period as an annual period, to calculate income taxes for the six months ended June 30, 2020. The resulting year-to date effective tax rate for the six months ended June 30, 2020 did not significantly differ from our statutory rate. We will continue to evaluate interim income tax estimates using an estimated AETR in subsequent quarters and will only use a discrete effective tax rate if warranted. Unrecognized Tax Benefits As of June 30, 2020, we believe it is reasonably possible that $2.7 million of our unrecognized tax benefits, including penalties, interest and discontinued operations, will be reduced prior to June 30, 2021 due to the settlement of audits or the expiration of statutes of limitations or both. However, due to the uncertain and complex application of the tax regulations, it is possible that the ultimate resolution of these matters may result in liabilities that could materially differ from this estimate.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Share	16. Earnings per 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 stock-settled restricted stock units that have nonforfeitable rights to receive dividends or dividend equivalents, whether paid or unpaid. During periods of net loss, no effect is given to participating securities because they do not have a contractual obligation to participate in our losses. Diluted net income (loss) per common share is computed using the weighted average number of shares outstanding adjusted for the incremental common stock equivalents attributed to outstanding options, performance-based restricted stock units and stock to be issued pursuant to our employee stock purchase plan unless their effect would be anti-dilutive. The following table shows the calculation for net income (loss) attributable to common stockholders, which is used in the calculation of basic and diluted net income (loss) per common share (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Income (loss) from continuing operations ​ $ (30,381) ​ $ 11,423 ​ $ (91,568) ​ $ 31,152 Loss from discontinued operations, net of tax ​ — ​ — ​ — ​ (273) Net income (loss) ​ (30,381) ​ 11,423 ​ (91,568) ​ 30,879 Less: Net income attributable to participating securities ​ (321) ​ (261) ​ (643) ​ (574) Net income (loss) attributable to common stockholders ​ $ (30,702) ​ $ 11,162 ​ $ (92,211) ​ $ 30,305 ​ The following table shows the potential shares of common stock that were included in computing diluted net income (loss) per common share (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Weighted average common shares outstanding including participating securities ​ 152,937 ​ 130,330 ​ 152,750 ​ 130,276 Less: Weighted average participating securities outstanding (2,194) (2,002) (2,122) (2,015) Weighted average common shares outstanding used in basic net income (loss) per common share 150,743 128,328 150,628 128,261 Net dilutive potential common shares issuable: ​ On exercise of options and vesting of performance-based restricted stock units — ​ 25 — 33 On settlement of employee stock purchase plan shares — ​ 1 — 3 Weighted average common shares outstanding used in diluted net income (loss) per common share 150,743 128,354 150,628 128,297 ​ The following table shows the potential shares of common stock issuable that were excluded from computing diluted net income (loss) per common share as their inclusion would have been anti-dilutive (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 On exercise of options where exercise price is greater than average market value for the period ​ 95 154 111 154 On exercise of options and vesting of performance-based restricted stock units ​ 57 ​ — ​ 57 ​ — On settlement of employee stock purchase plan shares ​ 22 ​ — ​ 25 ​ — Net dilutive potential common shares issuable ​ 174 ​ 154 ​ 193 ​ 154 ​

Derivatives

Derivatives	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	17. Derivatives We are exposed to market risks associated with changes in the variable interest rate of our Credit Facility. We use derivative instruments to manage our exposure to fluctuations in this variable interest rate and thereby minimize the risks and costs associated with financial activities. We do not use derivative instruments for trading or other speculative purposes. As of June 30, 2020, we had $300.0 million notional value of interest rate swaps outstanding, which expire in March 2022 and were entered into to offset changes in expected cash flows due to fluctuations in the associated variable interest rates. The counterparties to our derivative agreements are major financial institutions. We monitor the credit quality of these financial institutions and do not expect nonperformance by any counterparty, although such nonperformance could have a material adverse effect on us. We have no collateral posted for the derivative instruments. We have designated these interest rate swaps as cash flow hedging instruments. Changes in the fair value of the interest rate swaps are recognized as a component of other comprehensive income (loss) until the hedged transaction affects earnings. At that time, amounts are reclassified into earnings to interest expense, the same statement of operations line item to which the earnings effect of the hedged item is recorded. Cash flows from derivatives designated as hedges are classified in our condensed consolidated statements of cash flows under the same category as the cash flows from the underlying assets, liabilities or anticipated transactions unless the derivative contract contains a significant financing element; in this case, the cash settlements for these derivatives are classified as cash flows from financing activities. We expect the hedging relationship to be highly effective as the interest rate swap terms substantially coincide with the hedged item and are expected to offset changes in expected cash flows due to fluctuations in the variable rate. We perform quarterly qualitative prospective and retrospective hedge effectiveness assessments unless facts and circumstances related to the hedging relationships change such that we can no longer assert qualitatively that the cash flow hedge relationships were and continue to be highly effective. We estimate that $4.7 million of the deferred pre-tax loss attributable to interest rate swaps included in accumulated other comprehensive loss at June 30, 2020 will be reclassified into earnings as interest expense at then-current values during the next 12 months as the underlying hedged transactions occur. As of June 30, 2020, the weighted average effective fixed interest rate on our interest rate swaps was 1.8%. The following table presents the effect of our derivative instruments designated as cash flow hedging instruments on our condensed consolidated balance sheets (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Other current assets ​ $ — ​ $ 12 Total derivative assets ​ $ — ​ $ 12 ​ ​ ​ ​ ​ ​ ​ Accrued liabilities ​ $ 4,747 ​ $ 593 Other liabilities ​ 3,999 ​ 1,175 Total derivative liabilities ​ $ 8,746 ​ $ 1,768 ​ The following tables present the effect of our derivative instruments designated as cash flow hedging instruments on our condensed consolidated statements of operations (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Pre-tax loss recognized in other comprehensive income (loss) ​ $ (738) ​ $ (4,529) ​ $ (8,311) ​ $ (6,828) Pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) into interest expense ​ (1,073) ​ 791 ​ (1,322) ​ 1,717 Total amount of interest expense in which the effects of cash flow hedges are recorded ​ ​ 25,778 ​ ​ 25,954 ​ ​ 55,443 ​ ​ 49,571 ​ See Note 10 (“Accumulated Other Comprehensive Income (Loss)”) and Note 18 (“Fair Value Measurements”) for further details on our derivative instruments.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	18. Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis On a quarterly basis, our interest rate swap derivative instruments are valued based on the income approach (discounted cash flow) using market observable inputs, including LIBOR forward curves. These fair value measurements are classified as Level 2. The following table presents our derivative asset and liability measured at fair value on a recurring basis, with pricing levels as of the date of valuation (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Derivative asset ​ $ — ​ $ 12 Derivative liability ​ 8,746 ​ 1,768 ​ Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Goodwill In the first quarter of 2020, we determined that the significant deterioration in global macroeconomic conditions caused by the COVID-19 pandemic was an indicator of potential impairment of our goodwill, and we performed a quantitative impairment test as of March 31, 2020 that resulted in a $99.8 million impairment of our goodwill. Significant estimates used in our impairment analysis included cash flow forecasts, our estimate of the market’s weighted average cost of capital and market multiples, which are Level 3 inputs. See Note 7 (“Goodwill”) for further details of the valuation methodology used in connection with the goodwill impairment. Compressors During the six months ended June 30, 2020, we recorded nonrecurring fair value measurements related to our idle and previously-culled compressors. Our estimate of the compressors’ fair value was primarily based on the expected net sale proceeds compared to other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use. We discounted the expected proceeds, net of selling and other carrying costs, using a weighted average disposal period of four years. These fair value measurements are classified as Level 3. The fair value of our impaired compressors as of June 30, 2020 and December 31, 2019 was as follows: ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Impaired compressors ​ $ 2,324 ​ $ 5,859 ​ ​ ​ ​ ​ ​ ​ The unobservable inputs used to develop the above fair value measurements were weighted by the relative fair value of the compressors being measured. Additional quantitative information related to our significant unobservable inputs as of June 30, 2020 follows: ​ ​ ​ ​ ​ ​ ​ Range Weighted Average Estimated net sale proceeds (1) ​ $0 - $372 per horsepower ​ $21 per horsepower (1) Weighted average is calculated based on an estimated discount for market liquidity of 77% . ​ See Note 13 (“Long-Lived Asset Impairment”) for further details. Other Financial Instruments The carrying amounts of our cash, receivables and payables approximate fair value due to the short-term nature of those instruments. The carrying amount of borrowings outstanding under our Credit Facility approximates fair value due to its variable interest rate. The fair value of these outstanding borrowings is a Level 3 measurement. The fair value of our fixed rate debt is estimated using yields observable in active markets, which are Level 2 inputs, and was as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Carrying amount of fixed rate debt (1) ​ $ 984,937 ​ $ 1,329,549 Fair value of fixed rate debt ​ 932,000 ​ 1,400,000 (1) Carrying amounts are shown net of unamortized debt discounts and unamortized deferred financing costs. See Note 9 (“Long-Term Debt”). ​

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	19. Stock-Based Compensation Stock-based compensation expense consisted of the following during the three and six months ended June 30, 2020 and 2019 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Equity awards ​ $ 2,772 ​ $ 1,512 ​ $ 5,778 ​ $ 3,869 Liability awards ​ 842 ​ 640 ​ 294 ​ 1,606 Total stock-based compensation expense ​ $ 3,614 ​ $ 2,152 ​ $ 6,072 ​ $ 5,475 ​ The following table presents restricted stock, restricted stock unit, performance-based restricted stock unit and cash-settled performance unit activity during the six months ended June 30, 2020 (shares in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Grant Date ​ ​ ​ ​ Fair Value ​ Shares Per Share Non-vested awards, December 31, 2019 2,022 ​ $ 10.25 Granted 1,412 ​ 9.47 Vested (358) ​ 9.45 Canceled (59) ​ 10.18 Non-vested awards, June 30, 2020 (1) 3,017 ​ 9.98 (1) Non-vested awards as of June 30, 2020 are comprised of 529,000 cash-settled restricted stock units and cash-settled performance units and 2,488,000 restricted stock and stock-settled performance units. As of June 30, 2020, we expect $18.9 million of unrecognized compensation cost related to unvested restricted stock, stock-settled restricted stock units, performance units, cash-settled restricted stock units and cash-settled performance units to be recognized over the weighted average period of 2.0 years. 2020 Plan The 2020 Plan was adopted in April 2020 and provides for the granting of stock options, restricted stock, restricted stock units, stock appreciation rights, performance awards, other stock-based awards and dividend equivalent rights to employees, directors and consultants of Archrock. Under the 2020 Plan, the maximum number of shares of common stock available for issuance is 8,500,000. Each stock-settled award granted under the 2020 Plan reduces the number of shares available for issuance by one share. No additional grants may be made under the 2013 Plan following the adoption of the 2020 Plan. Previous grants made under the 2013 Plan continue to be governed by that plan and the applicable award agreements.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	20. Commitments and Contingencies Performance Bonds In the normal course of business we have issued performance bonds to various state authorities that ensure payment of certain obligations. We have also issued a bond to protect our 401(k) retirement plan against losses caused by acts of fraud or dishonesty. The bonds have expiration dates in 2020 through the fourth quarter of 2022 and maximum potential future payments of $2.2 million. As of June 30, 2020, we were in compliance with all obligations to which the performance bonds pertain. Tax Matters We are subject to a number of state and local taxes that are not income-based. As many of these taxes are subject to audit by the taxing authorities, it is possible that an audit could result in additional taxes due. We accrue for such additional taxes when we determine that it is probable that we have incurred a liability and we can reasonably estimate the amount of the liability. As of June 30, 2020 and December 31, 2019, we accrued $2.6 million and $2.5 million, respectively, for the outcomes of non-income-based tax audits. We do not expect that the ultimate resolutions of these audits will result in a material variance from the amounts accrued. We do not accrue for unasserted claims for tax audits unless we believe the assertion of a claim is probable, it is probable that it will be determined that the claim is owed and we can reasonably estimate the claim or range of the claim. We believe the likelihood is remote that the impact of potential unasserted claims from non-income-based tax audits could be material to our consolidated financial position, but it is possible that the resolution of future audits could be material to our consolidated results of operations or cash flows. Subject to the provisions of the tax matters agreement between Exterran Corporation and us, both parties agreed to indemnify the primary obligor of any return for tax periods beginning before and ending before or after the Spin-off (including any ongoing or future amendments and audits for these returns) for the portion of the tax liability (including interest and penalties) that relates to their respective operations reported in the filing. The tax contingencies mentioned above relate to tax matters for which we are responsible in managing the audit. As of June 30, 2020 and December 31, 2019, we had an indemnification liability (including penalties and interest), in addition to the tax contingency above, of $1.6 million and $2.8 million, respectively, for our share of non-income-based tax contingencies related to audits being managed by Exterran Corporation. Insurance Matters 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 and 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. We are also self-insured for property damage to our offshore assets. Litigation and Claims In the ordinary course of business, we are involved in various pending or threatened legal actions. While we are unable to predict the ultimate outcome of these actions, we believe that any ultimate liability arising from any of these actions will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends. However, because of the inherent uncertainty of litigation and arbitration proceedings, we cannot provide assurance that the resolution of any particular claim or proceeding to which we are a party will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	21. Related Party Transactions In connection with the closing of the Elite Acquisition, we issued 21.7 million shares of our common stock to JDH Capital, an affiliate of our customer Hilcorp. As long as JDH Capital, together with affiliates of Hilcorp, owns at least 7.5% of our outstanding common stock, it will have the right to designate one director to our Board of Directors. In August 2019, Jeffery D. Hildebrand, founder and executive chairman of Hilcorp, was elected to our Board of Directors. Mr. Hildebrand receives no compensation for his role as a director. As of June 30, 2020, JDH Capital owned 14.2% of our outstanding common stock. Revenue from Hilcorp and affiliates was $10.2 million and $4.9 million during the three months ended June 30, 2020 and 2019, respectively, and $20.8 million and $10.4 million during the six months ended June 30, 2020 and 2019, respectively. Accounts receivable, net due from Hilcorp and affiliates was $4.0 million and $5.1 million as of June 30, 2020 and December 31, 2019, respectively.

Segments

Segments	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Segments	22. Segments We manage our business segments primarily based on the type of product or service provided. We have two segments which we operate within the U.S.: contract operations and aftermarket services. The contract operations segment primarily provides natural gas compression services to meet specific customer requirements. The aftermarket services segment provides a full range of services to support the compression needs of customers, from parts sales and normal maintenance services to full operation of a customer’s owned assets. We evaluate the performance of our segments based on gross margin for each segment. Revenue includes only sales to external customers. The following table presents revenue and gross margin by segment during the three and six months ended June 30, 2020 and 2019 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Contract Aftermarket ​ ​ ​ Operations Services Total Three months ended June 30, 2020 ​ ​ ​ Revenue ​ $ 187,949 ​ $ 32,367 ​ $ 220,316 Gross margin ​ 124,559 ​ 3,681 ​ 128,240 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ ​ ​ Revenue ​ $ 186,258 ​ $ 52,132 ​ $ 238,390 Gross margin ​ 115,737 ​ 9,917 ​ 125,654 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ ​ ​ Revenue ​ $ 394,923 ​ $ 75,090 ​ $ 470,013 Gross margin ​ 252,882 ​ 11,413 ​ 264,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ ​ ​ Revenue ​ $ 368,765 ​ $ 105,784 ​ $ 474,549 Gross margin ​ 223,509 ​ 19,667 ​ 243,176 ​ The following table reconciles total gross margin to income (loss) before income taxes (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Total gross margin ​ $ 128,240 ​ $ 125,654 ​ $ 264,295 ​ $ 243,176 Less: ​ ​ ​ ​ Selling, general and administrative ​ 28,745 ​ 28,618 ​ 59,371 ​ 57,607 Depreciation and amortization ​ 48,849 ​ 45,482 ​ 98,671 ​ 89,588 Long-lived asset impairment ​ 55,210 ​ 8,632 ​ 61,405 ​ 11,724 Goodwill impairment ​ ​ — ​ ​ — ​ ​ 99,830 ​ ​ — Restatement and other charges ​ — ​ 24 ​ — ​ 445 Restructuring charges ​ ​ 2,408 ​ ​ — ​ ​ 4,136 ​ ​ — Interest expense ​ 25,778 ​ 25,954 ​ 55,443 ​ 49,571 Debt extinguishment loss ​ 3,971 ​ 3,653 ​ 3,971 ​ 3,653 Transaction-related costs ​ — ​ 2,687 ​ — ​ 2,867 (Gain) loss on sale of assets, net ​ ​ 2,189 ​ ​ (1,801) ​ ​ (1,927) ​ ​ (1,785) Other income, net ​ (438) ​ (209) ​ (993) ​ (430) Income (loss) before income taxes ​ $ (38,472) ​ $ 12,614 ​ $ (115,612) ​ $ 29,936 ​

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2020
Subsequent Events
Subsequent Events	23. Subsequent Events July 2020 Disposition On July 9, 2020, we completed the sale of the turbocharger business included within our aftermarket services segment. A gain on the sale of approximately $9.0 million will be recognized in the third quarter of 2020.

Recent Accounting Developments

Recent Accounting Developments (Policies)	6 Months Ended
	Jun. 30, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Credit Losses	Credit Losses In June 2016, the FASB issued ASU 2016-13, which changes the impairment model for financial assets measured at amortized cost and certain other instruments, and requires entities to use a new current expected credit loss model that results in recognition of expected losses over the contractual life of an asset. We adopted ASU 2016-13 on January 1, 2020 using the modified retrospective approach. The adoption resulted in a $0.2 million decrease in our allowance for credit losses and a corresponding pre-tax cumulative effect adjustment to retained earnings in our condensed consolidated balance sheet at January 1, 2020. Comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. Our financial assets measured at amortized cost consist of cash equivalents and trade receivables from revenue transactions within the scope of ASC 606 Revenue. We believe our temporary cash investments have a zero loss expectation because we maintain minimal balances in our cash investment accounts and have no history of loss. Trade accounts receivable are due from companies of varying size engaged principally in oil and natural gas activities throughout the U.S. 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 the products and services we provide and the terms of our customer agreements. Due to the short-term nature of our trade receivables, we consider the amortized cost to be the same as the carrying amount of the receivable, excluding the allowance for credit losses. We recognize an allowance for credit losses when a receivable is recorded, even when the risk of loss is remote. We utilize an aging schedule to determine our allowance for credit losses, and measure expected credit losses on a collective (pool) basis when similar risk characteristics exist. We rely primarily on ratings assigned by external rating agencies and credit monitoring services to assess credit risk and aggregate customers first by low, medium or high risk asset pools, and then by delinquency status. We also consider the internal risk associated with geographic location and the services we provide to the customer when determining asset pools. If a customer does not share similar risk characteristics with other customers, we evaluate the customer’s outstanding trade receivables for expected credit losses on an individual basis. Trade receivables evaluated individually are not included in our collective assessment. Each reporting period, we reassess our customers’ risk profiles and determine the appropriate asset pool classification, or perform individual assessments of expected credit losses, based on the customers’ risk characteristics at the reporting date. The contractual life of our trade receivables is primarily 30 days based on the payment terms specified in the contract. Contract operations services are generally billed monthly at the beginning of the month in which service is being provided. Aftermarket services billings typically occur when parts are delivered or service is completed. Loss rates are separately determined for each asset pool based on the length of time a trade receivable has been outstanding. We analyze two years of internal historical loss data, including the effects of prepayments, write-offs and subsequent recoveries, to determine our historical loss experience. Our historical loss information is a relevant data point for estimating credit losses, as the data closely aligns with trade receivables due from our customers. Ratings assigned by external rating agencies and credit monitoring services consider past performance and forecasts of future economic conditions in assessing credit risk. We routinely update our historical loss data to reflect our customers’ current risk profile, to ensure the historical data and loss rates are relevant to the pool of assets for which we are estimating expected credit losses. Judgement is used to determine the expected credit loss for customers that do not share similar risk characteristics with other customers, based on customer specific items such as legal proceedings, past experience with the customer and/or ongoing customer negotiations. The following table summarizes the changes in our allowance for credit losses balance during the six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ Balance at December 31, 2019 $ 2,210 Impact of adoption of ASU 2016-13 on January 1, 2020 ​ ​ (216) Provision for credit losses ​ ​ 2,282 Write-offs charged against allowance ​ ​ (646) Balance at June 30, 2020 ​ $ 3,630 ​
Fair Value Measurements	Fair Value Measurements On January 1, 2020, we adopted ASU 2018-13, which amends the required fair value measurements disclosures related to valuation techniques and inputs used, uncertainty in measurement and changes in measurements applied. These amendments resulted in new, prospective disclosures of the range and weighted average of the significant unobservable inputs used to develop our Level 3 fair value measurements related to our idle and previously-culled compressors. The adoption of ASU 2018-13 had no impact on our condensed consolidated financial statements.
Income Taxes	Income Taxes On January 1, 2020, we adopted ASU 2019-12, which simplifies the accounting for income taxes by, among other things, removing certain exceptions related to the incremental approach for intraperiod tax allocation, the year-to-date loss methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities on outside basis differences. ASU 2019-12 also clarifies other aspects of the accounting for income taxes in order to improve consistency of application. The adoption of ASU 2019-12 had no impact on our condensed consolidated financial statements.
Accounting Standards Updates Not Yet Implemented	Accounting Standards Updates Not Yet Implemented Reference Rate Reform In March 2020, the FASB issued ASU 2020-04, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued as a result of reference rate reform. ASU 2020-04 is effective for all entities as of March 12, 2020 through December 31, 2022. Entities may elect to apply the amendments for contract modifications as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020. We are currently assessing the impact that ASU 2020-04 may have on our interest rate swap agreements, Credit Facility and other transactions that may be affected by reference rate reform.

Recent Accounting Development_2

Recent Accounting Developments (Tables)	6 Months Ended
	Jun. 30, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Summary of changes in the allowance for credit losses balance	The following table summarizes the changes in our allowance for credit losses balance during the six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ Balance at December 31, 2019 $ 2,210 Impact of adoption of ASU 2016-13 on January 1, 2020 ​ ​ (216) Provision for credit losses ​ ​ 2,282 Write-offs charged against allowance ​ ​ (646) Balance at June 30, 2020 ​ $ 3,630

Business Transactions (Tables)

Business Transactions (Tables)	6 Months Ended
	Jun. 30, 2020
Business Transactions
Asset Acquisitions	The following table summarizes the purchase price allocation based on the estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands): ​ ​ ​ ​ ​ Accounts receivable $ 9,007 Inventory ​ 7,987 Other current assets ​ 608 Property, plant and equipment ​ 286,158 Operating lease ROU assets ​ 682 Goodwill ​ 100,598 Intangible assets ​ 40,237 Accounts payable, trade ​ (2,079) Accrued liabilities ​ (2,973) Operating lease liabilities ​ (326) Purchase price ​ $ 439,899
Pro Forma Information	The unaudited pro forma financial information below is presented (in thousands) for informational purposes only and is not necessarily indicative of our results of operations that would have occurred had the transaction been consummated at the beginning of the period presented, nor is it necessarily indicative of future results. ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, 2019 June 30, 2019 Revenue ​ $ 257,706 ​ $ 512,271 Net income ​ 15,250 ​ 36,220

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Summary of operating results and balance sheet data for discontinued operations	The following table presents the balance sheet for our discontinued operations (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Other assets ​ $ 8,529 ​ $ 8,508 Deferred tax assets ​ ​ 3,780 ​ ​ 4,393 Total assets associated with discontinued operations ​ $ 12,309 ​ $ 12,901 ​ ​ ​ ​ ​ ​ ​ Deferred tax liabilities ​ $ 8,529 ​ $ 8,508 Total liabilities associated with discontinued operations ​ $ 8,529 ​ $ 8,508 ​ The following table presents the statements of operations for our discontinued operations (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Other income, net $ (10) $ — $ (20) $ (1,432) Provision for income taxes ​ ​ 10 ​ — ​ 20 ​ 1,705 Loss from discontinued operations, net of tax ​ $ — ​ $ — ​ $ — ​ $ (273)

Inventory (Tables)

Inventory (Tables)	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Schedule of inventory, net of reserves	Inventory consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Parts and supplies ​ $ 64,774 ​ $ 66,121 Work in progress ​ 6,217 ​ 8,346 Inventory ​ $ 70,991 ​ $ 74,467

Property, Plant and Equipment_2

Property, Plant and Equipment, Net (Tables)	6 Months Ended
	Jun. 30, 2020
Property, Plant and Equipment [Abstract]
Schedule of property, plant and equipment, net	Property, plant and equipment, net consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Compression equipment, facilities and other fleet assets ​ $ 3,505,096 ​ $ 3,653,930 Land and buildings ​ 51,236 ​ 50,743 Transportation and shop equipment ​ 116,980 ​ 116,057 Computer hardware and software ​ 94,613 ​ 93,695 Other ​ 18,295 ​ 15,308 Property, plant and equipment ​ 3,786,220 ​ 3,929,733 Accumulated depreciation ​ (1,300,146) ​ (1,370,335) Property, plant and equipment, net ​ $ 2,486,074 ​ $ 2,559,398

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill
Schedule of change in the carrying value of goodwill	The following table presents the change in the carrying amount of goodwill during the six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ Balance at December 31, 2019 ​ $ 100,598 Dispositions ​ ​ (768) Impairment loss ​ (99,830) Balance at June 30, 2020 ​ $ —

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Schedule of long-term debt	Long-term debt consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Credit Facility ​ $ 823,000 ​ $ 513,000 ​ ​ ​ ​ ​ ​ ​ 2028 Notes ​ 500,000 ​ 500,000 Less: Deferred financing costs, net of amortization ​ (7,603) ​ (8,090) ​ ​ 492,397 ​ 491,910 ​ ​ ​ ​ ​ ​ ​ 2027 Notes ​ ​ 500,000 ​ 500,000 Less: Deferred financing costs, net of amortization ​ ​ (7,460) ​ (7,999) ​ ​ ​ 492,540 ​ 492,001 ​ ​ ​ ​ ​ ​ ​ 2022 Notes ​ — ​ 350,000 Less: Debt discount, net of amortization ​ — ​ (2,046) Less: Deferred financing costs, net of amortization ​ — ​ (2,316) ​ ​ — ​ 345,638 ​ ​ ​ ​ ​ ​ ​ Long-term debt ​ $ 1,807,937 ​ $ 1,842,549

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table presents the changes in accumulated other comprehensive income (loss) of our derivative cash flow hedges, net of tax, during the three and six months ended June 30, 2020 and 2019 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Beginning accumulated other comprehensive income (loss) ​ $ (7,173) ​ $ 2,548 ​ $ (1,387) ​ $ 5,773 Loss recognized in other comprehensive income (loss), net of tax benefit of $155, $0, $1,745 and $0, respectively (1) ​ (583) ​ (4,529) ​ (6,566) ​ (6,828) (Gain) loss reclassified from accumulated other comprehensive income (loss) to interest expense, net of tax benefit of $225, $0, $277 and $0, respectively (1) ​ 848 ​ (791) ​ 1,045 ​ (1,717) Other comprehensive income (loss) ​ 265 ​ (5,320) ​ (5,521) ​ (8,545) Ending accumulated other comprehensive loss ​ $ (6,908) ​ $ (2,772) ​ $ (6,908) ​ $ (2,772) (1) Includes adjustments of $1.1 million and $1.8 million related to an increase in the valuation allowance recorded to offset the tax effect of other comprehensive loss recorded during the three and six months ended June 30, 2019, respectively.

Equity (Tables)

Equity (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Summary of entity's dividends per common share	​ ​ ​ ​ ​ ​ ​ ​ ​ Declared Dividends Dividends Paid ​ per Common Share (in thousands) 2020 ​ ​ Q1 ​ $ 0.145 ​ $ 22,171 Q2 ​ ​ 0.145 ​ ​ 22,176 ​ ​ ​ ​ ​ ​ ​ 2019 ​ ​ Q1 ​ $ 0.132 ​ $ 17,231 Q2 ​ 0.132 ​ 17,206 Q3 ​ 0.145 ​ 22,062 Q4 ​ 0.145 ​ 22,031

Revenue from Contract with Cu_2

Revenue from Contract with Customers (Tables)	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents our revenue from contracts with customers disaggregated by revenue source (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Contract operations (1) : ​ ​ ​ ​ ​ ​ ​ ​ 0 - 1,000 horsepower per unit ​ $ 57,728 ​ $ 63,683 ​ $ 124,468 ​ $ 127,422 1,001 - 1,500 horsepower per unit ​ 78,026 ​ 75,598 ​ 162,878 ​ 149,938 Over 1,500 horsepower per unit ​ 51,618 ​ 45,969 ​ 106,209 ​ 89,394 Other (2) ​ 577 ​ 1,008 ​ 1,368 ​ 2,011 Total contract operations (3) ​ 187,949 ​ 186,258 ​ 394,923 ​ 368,765 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Aftermarket services (1) : ​ ​ ​ ​ Services ​ 19,081 ​ 33,281 ​ 44,531 ​ 66,802 OTC parts and components sales ​ 13,286 ​ 18,851 ​ 30,559 ​ 38,982 Total aftermarket services (4) ​ 32,367 ​ 52,132 ​ 75,090 ​ 105,784 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total revenue ​ $ 220,316 ​ $ 238,390 ​ $ 470,013 ​ $ 474,549 (1) We operate in two segments: contract operations and aftermarket services. See Note 22 (“Segments”) for further details regarding our segments. (2) Primarily relates to fees associated with owned non-compression equipment. (3) Includes $1.5 million and $2.2 million for the three months ended June 30, 2020 and 2019, respectively, and $3.1 million and $4.4 million for the six months ended June 30, 2020 and 2019, respectively, related to billable maintenance on owned compressors that was recognized at a point in time. All other contract operations revenue is recognized over time. (4) All service revenue within aftermarket services is recognized over time. All OTC parts and components sales revenue is recognized at a point in time.
Remaining Performance Obligation	Our remaining performance obligations will be recognized through 2025 as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2021 2022 2023 2024 2025 Total Remaining performance obligations ​ $ 172,639 ​ $ 170,084 ​ $ 65,438 ​ $ 7,532 ​ $ 1,030 ​ $ 79 ​ $ 416,802

Long-Lived Assets Impairment (T

Long-Lived Assets Impairment (Tables)	6 Months Ended
	Jun. 30, 2020
Asset Impairment Charges [Abstract]
Schedule of impairment of long-lived assets	The following table presents the results of our impairment review as recorded to our contract operations segment (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Idle compressors retired from the active fleet ​ 450 ​ 160 ​ 535 ​ 180 Horsepower of idle compressors retired from the active fleet ​ 184,000 ​ 41,000 ​ 207,000 ​ 56,000 Impairment recorded on idle compressors retired from the active fleet ​ $ 55,210 ​ $ 8,632 ​ $ 61,405 ​ $ 11,724

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Jun. 30, 2020
Restructuring Charges
Schedule of changes to accrued liability balance related to restructuring charges	The following table presents the changes to our accrued liability balance related to restructuring charges during the six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ Balance at December 31, 2019 ​ $ — Severance costs ​ 3,974 Non-cash expense ​ ​ 162 Payments ​ ​ (2,885) Balance at June 30, 2020 ​ $ 1,251 ​
Schedule of restructuring charges by segment	The following table presents, by segment, the restructuring charges incurred during the three and six months ended June 30, 2020 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Contract ​ Aftermarket ​ ​ ​ ​ ​ ​ Operations ​ Services ​ Other (1) ​ Total Three months ended June 30, 2020 ​ $ 1,386 ​ $ 286 ​ $ 736 ​ $ 2,408 Six months ended June 30, 2020 ​ ​ 1,864 ​ ​ 911 ​ ​ 1,361 ​ ​ 4,136 (1) Represents expense incurred within our corporate function and not directly attributable to our segments.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Summary of net income (loss) attributable to Archrock common stockholders used in the calculation of basic and diluted income (loss) per common share	The following table shows the calculation for net income (loss) attributable to common stockholders, which is used in the calculation of basic and diluted net income (loss) per common share (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Income (loss) from continuing operations ​ $ (30,381) ​ $ 11,423 ​ $ (91,568) ​ $ 31,152 Loss from discontinued operations, net of tax ​ — ​ — ​ — ​ (273) Net income (loss) ​ (30,381) ​ 11,423 ​ (91,568) ​ 30,879 Less: Net income attributable to participating securities ​ (321) ​ (261) ​ (643) ​ (574) Net income (loss) attributable to common stockholders ​ $ (30,702) ​ $ 11,162 ​ $ (92,211) ​ $ 30,305
Schedule of potential shares of common stock that were included in computing diluted income (loss) attributable to Archrock common stockholders per common share	The following table shows the potential shares of common stock that were included in computing diluted net income (loss) per common share (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Weighted average common shares outstanding including participating securities ​ 152,937 ​ 130,330 ​ 152,750 ​ 130,276 Less: Weighted average participating securities outstanding (2,194) (2,002) (2,122) (2,015) Weighted average common shares outstanding used in basic net income (loss) per common share 150,743 128,328 150,628 128,261 Net dilutive potential common shares issuable: ​ On exercise of options and vesting of performance-based restricted stock units — ​ 25 — 33 On settlement of employee stock purchase plan shares — ​ 1 — 3 Weighted average common shares outstanding used in diluted net income (loss) per common share 150,743 128,354 150,628 128,297
Schedule of potential shares of common stock issuable, excluded from computation of diluted income (loss), attributable to Archrock common stockholders per common share	The following table shows the potential shares of common stock issuable that were excluded from computing diluted net income (loss) per common share as their inclusion would have been anti-dilutive (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 On exercise of options where exercise price is greater than average market value for the period ​ 95 154 111 154 On exercise of options and vesting of performance-based restricted stock units ​ 57 ​ — ​ 57 ​ — On settlement of employee stock purchase plan shares ​ 22 ​ — ​ 25 ​ — Net dilutive potential common shares issuable ​ 174 ​ 154 ​ 193 ​ 154

Derivatives (Tables)

Derivatives (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Effect of derivative instruments on consolidated financial position	The following table presents the effect of our derivative instruments designated as cash flow hedging instruments on our condensed consolidated balance sheets (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Other current assets ​ $ — ​ $ 12 Total derivative assets ​ $ — ​ $ 12 ​ ​ ​ ​ ​ ​ ​ Accrued liabilities ​ $ 4,747 ​ $ 593 Other liabilities ​ 3,999 ​ 1,175 Total derivative liabilities ​ $ 8,746 ​ $ 1,768
Effect of derivative instruments on results of operations	The following tables present the effect of our derivative instruments designated as cash flow hedging instruments on our condensed consolidated statements of operations (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Pre-tax loss recognized in other comprehensive income (loss) ​ $ (738) ​ $ (4,529) ​ $ (8,311) ​ $ (6,828) Pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) into interest expense ​ (1,073) ​ 791 ​ (1,322) ​ 1,717 Total amount of interest expense in which the effects of cash flow hedges are recorded ​ ​ 25,778 ​ ​ 25,954 ​ ​ 55,443 ​ ​ 49,571 ​

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Summary of assets and liabilities measured at fair value on recurring basis	The following table presents our derivative asset and liability measured at fair value on a recurring basis, with pricing levels as of the date of valuation (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Derivative asset ​ $ — ​ $ 12 Derivative liability ​ 8,746 ​ 1,768
Schedule of non-recurring fair value assets	The fair value of our impaired compressors as of June 30, 2020 and December 31, 2019 was as follows: ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Impaired compressors ​ $ 2,324 ​ $ 5,859 ​ ​ ​ ​ ​ ​
Schedule of additional quantitative information related to our significant unobservable inputs	​ ​ ​ ​ ​ ​ ​ Range Weighted Average Estimated net sale proceeds (1) ​ $0 - $372 per horsepower ​ $21 per horsepower (1) Weighted average is calculated based on an estimated discount for market liquidity of 77% .
Schedule of carrying value and estimated fair value of debt instruments	The fair value of our fixed rate debt is estimated using yields observable in active markets, which are Level 2 inputs, and was as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Carrying amount of fixed rate debt (1) ​ $ 984,937 ​ $ 1,329,549 Fair value of fixed rate debt ​ 932,000 ​ 1,400,000 (1) Carrying amounts are shown net of unamortized debt discounts and unamortized deferred financing costs. See Note 9 (“Long-Term Debt”).

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Allocation of Total Stock-based Compensation	Stock-based compensation expense consisted of the following during the three and six months ended June 30, 2020 and 2019 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Equity awards ​ $ 2,772 ​ $ 1,512 ​ $ 5,778 ​ $ 3,869 Liability awards ​ 842 ​ 640 ​ 294 ​ 1,606 Total stock-based compensation expense ​ $ 3,614 ​ $ 2,152 ​ $ 6,072 ​ $ 5,475
Schedule of Restricted Stock, Restricted Stock Unit, Performance Unit, Cash Settled Restricted Stock Unit and Cash Settled Performance Unit Activity	The following table presents restricted stock, restricted stock unit, performance-based restricted stock unit and cash-settled performance unit activity during the six months ended June 30, 2020 (shares in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Grant Date ​ ​ ​ ​ Fair Value ​ Shares Per Share Non-vested awards, December 31, 2019 2,022 ​ $ 10.25 Granted 1,412 ​ 9.47 Vested (358) ​ 9.45 Canceled (59) ​ 10.18 Non-vested awards, June 30, 2020 (1) 3,017 ​ 9.98 (1) Non-vested awards as of June 30, 2020 are comprised of 529,000 cash-settled restricted stock units and cash-settled performance units and 2,488,000 restricted stock and stock-settled performance units.

Segments (Tables)

Segments (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Revenue and other financial information by reportable segment	The following table presents revenue and gross margin by segment during the three and six months ended June 30, 2020 and 2019 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Contract Aftermarket ​ ​ ​ Operations Services Total Three months ended June 30, 2020 ​ ​ ​ Revenue ​ $ 187,949 ​ $ 32,367 ​ $ 220,316 Gross margin ​ 124,559 ​ 3,681 ​ 128,240 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ ​ ​ Revenue ​ $ 186,258 ​ $ 52,132 ​ $ 238,390 Gross margin ​ 115,737 ​ 9,917 ​ 125,654 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ ​ ​ Revenue ​ $ 394,923 ​ $ 75,090 ​ $ 470,013 Gross margin ​ 252,882 ​ 11,413 ​ 264,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ ​ ​ Revenue ​ $ 368,765 ​ $ 105,784 ​ $ 474,549 Gross margin ​ 223,509 ​ 19,667 ​ 243,176
Reconciliation of net income (loss) to gross margin	The following table reconciles total gross margin to income (loss) before income taxes (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended Six Months Ended ​ ​ June 30, ​ June 30, ​ 2020 2019 2020 2019 Total gross margin ​ $ 128,240 ​ $ 125,654 ​ $ 264,295 ​ $ 243,176 Less: ​ ​ ​ ​ Selling, general and administrative ​ 28,745 ​ 28,618 ​ 59,371 ​ 57,607 Depreciation and amortization ​ 48,849 ​ 45,482 ​ 98,671 ​ 89,588 Long-lived asset impairment ​ 55,210 ​ 8,632 ​ 61,405 ​ 11,724 Goodwill impairment ​ ​ — ​ ​ — ​ ​ 99,830 ​ ​ — Restatement and other charges ​ — ​ 24 ​ — ​ 445 Restructuring charges ​ ​ 2,408 ​ ​ — ​ ​ 4,136 ​ ​ — Interest expense ​ 25,778 ​ 25,954 ​ 55,443 ​ 49,571 Debt extinguishment loss ​ 3,971 ​ 3,653 ​ 3,971 ​ 3,653 Transaction-related costs ​ — ​ 2,687 ​ — ​ 2,867 (Gain) loss on sale of assets, net ​ ​ 2,189 ​ ​ (1,801) ​ ​ (1,927) ​ ​ (1,785) Other income, net ​ (438) ​ (209) ​ (993) ​ (430) Income (loss) before income taxes ​ $ (38,472) ​ $ 12,614 ​ $ (115,612) ​ $ 29,936

Organization (Details)

Organization (Details)	6 Months Ended
	Jun. 30, 2020segment
Accounting Policies [Abstract]
Number of reportable segments	2

Recent Accounting Development_3

Recent Accounting Developments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle
Accumulated deficit	$ (2,380,626)			$ (2,244,877)
Credit Losses
Contractual life of accounts receivable	30 days
Period for analyzing historical loss data to determine loss experience	2 years
Changes in the allowance for credit losses balance
Balance at beginning of period	$ 2,210
Provision for credit losses	2,282	$ 335
Write-offs charged against the allowance	(646)
Balance at end of period	3,630
ASU 2016-13
New Accounting Pronouncements or Change in Accounting Principle
Change in Accounting Principle, Accounting Standards Update, Adopted			true
ASU 2016-13 | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle
Accumulated deficit				$ (200)
Changes in the allowance for credit losses balance
Balance at beginning of period	$ (216)
ASU 2018-13
New Accounting Pronouncements or Change in Accounting Principle
Change in Accounting Principle, Accounting Standards Update, Adopted			true
ASU 2019-12
New Accounting Pronouncements or Change in Accounting Principle
Change in Accounting Principle, Accounting Standards Update, Adopted			true

Business Transactions - March 2

Business Transactions - March 2020 Disposition (Details) hp in Thousands, $ in Thousands	Mar. 01, 2020USD ($)CompressorUnithp	Jun. 30, 2020USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on March 2020 Disposition		$ 3,172
Disposed of by Sale | March 2020 Disposition
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of compressors | CompressorUnit	200
Compressor units horsepower (horsepower) | hp	35
Gain on March 2020 Disposition	$ 3,200

Business Transactions - Elite A

Business Transactions - Elite Acquisition (Details) hp in Thousands, $ in Thousands, shares in Millions	Aug. 01, 2019USD ($)hpshares	Dec. 31, 2019USD ($)
Purchase price allocation
Goodwill		$ 100,598
Elite Acquisition
Business Transactions
Compressor units horsepower (horsepower) | hp	430
Cash consideration	$ 214,000
Purchase price allocation
Accounts receivable	9,007
Inventory	7,987
Other current assets	608
Property, plant and equipment	286,158
Operating lease ROU assets	682
Goodwill	100,598
Intangible assets	40,237
Accounts payable, trade	(2,079)
Accrued liabilities	(2,973)
Operating lease liabilities	(326)
Purchase price	$ 439,899
Elite Acquisition | Common Stock
Business Transactions
Shares issued as compensation for asset acquisition (shares) | shares	21.7
Fair value of equity consideration	$ 225,900

Business Transactions - Assets

Business Transactions - Assets Acquired (Details) - USD ($) $ in Thousands	Aug. 01, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Proceeds from sale of property, plant and equipment and other assets		$ 5,071	$ 21,954
Elite Acquisition
Business Acquisition [Line Items]
Property plant and equipment remaining useful life	15 years
Estimated average remaining life intangible assets	15 years

Business Transactions - Pro for

Business Transactions - Pro forma (Details) hp in Thousands, $ in Thousands	Aug. 01, 2019USD ($)hp	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
Business Transactions
Transaction-related costs		$ 2,687	$ 2,867
Pro forma financial information
Revenue		257,706	512,271
Net income		$ 15,250	36,220
Elite Acquisition
Business Transactions
Compressor units horsepower (horsepower) | hp	430
Cash consideration	$ 214,000
Transaction-related costs			$ 2,500

Discontinued Operations - Descr

Discontinued Operations - Description (Details) - Exterran Corporation - Spinoff - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Discontinued Operations
Proceeds under terms of separation and distribution agreement	$ 700
Deferred tax liabilities	8,529	$ 8,508
Indemnification asset	$ 8,529	$ 8,508

Discontinued Operations - Balan

Discontinued Operations - Balance Sheet Data for Discontinued Operations (Details) - Spinoff - Exterran Corporation - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Summary of balance sheet data for discontinued operations
Other assets	$ 8,529	$ 8,508
Deferred tax assets	3,780	4,393
Total assets associated with discontinued operations	12,309	12,901
Deferred tax liabilities	8,529	8,508
Total liabilities associated with discontinued operations	$ 8,529	$ 8,508

Discontinued Operations - Incom

Discontinued Operations - Income Statement Data for Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Loss from discontinued operations, net of tax			$ (273)
Spinoff | Exterran Corporation
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Other income, net	$ (10)	$ (20)	(1,432)
Provision for income taxes	$ 10	$ 20	1,705
Loss from discontinued operations, net of tax			$ (273)

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Composition of Inventory net of reserves
Parts and supplies	$ 64,774	$ 66,121
Work in progress	6,217	8,346
Inventory	$ 70,991	$ 74,467

Property, Plant and Equipment_3

Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment
Property, plant and equipment, gross	$ 3,786,220	$ 3,929,733
Accumulated depreciation	(1,300,146)	(1,370,335)
Property, plant and equipment, net	2,486,074	2,559,398
Compression equipment, facilities and other fleet assets
Property, Plant and Equipment
Property, plant and equipment, gross	3,505,096	3,653,930
Land and buildings
Property, Plant and Equipment
Property, plant and equipment, gross	51,236	50,743
Transportation and shop equipment
Property, Plant and Equipment
Property, plant and equipment, gross	116,980	116,057
Computer hardware and software
Property, Plant and Equipment
Property, plant and equipment, gross	94,613	93,695
Other property, plant and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	$ 18,295	$ 15,308

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2020
Change in the carrying value of goodwill
Goodwill, net as of beginning of period	$ 100,598	$ 100,598
Dispositions		(768)
Impairment loss	$ (99,800)	$ (99,830)

Hosting Arrangements (Details)

Hosting Arrangements (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Hosting arrangements, Capitalized costs	$ 7.7	$ 7.7	$ 5.5
Hosting arrangements, Accumulated amortization	0.1	0.1
Hosting arrangements, Amortization	$ 0.1	$ 0.1

Long-Term Debt - Schedule of Lo

Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument
Long-term debt	$ 1,807,937	$ 1,842,549
Credit Facility
Debt Instrument
Long term debt gross	823,000	513,000
2028 Notes
Debt Instrument
Long term debt gross	500,000	500,000
Less: Deferred financing costs, net of amortization	(7,603)	(8,090)
Long-term debt	492,397	491,910
2027 Notes
Debt Instrument
Long term debt gross	500,000	500,000
Less: Deferred financing costs, net of amortization	(7,460)	(7,999)
Long-term debt	$ 492,540	492,001
2022 Notes
Debt Instrument
Long term debt gross		350,000
Less: Debt discount, net of amortization		(2,046)
Less: Deferred financing costs, net of amortization		(2,316)
Long-term debt		$ 345,638

Long-Term Debt - Credit Facilit

Long-Term Debt - Credit Facility (Details) - Credit Facility - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Line of Credit Facility
Letter of credit outstanding	$ 12.4		$ 12.4
Debt instrument, variable rate (percentage)			2.50%
Debt instrument weighted average interest rate (percent)	2.70%		2.70%		4.30%
Commitment fee amount	$ 0.4	$ 0.6	$ 1.1	$ 1.1
Undrawn capacity under revolving credit facility	$ 414.6		$ 414.6

Long-Term Debt - 2022 Notes Red

Long-Term Debt - 2022 Notes Redemption (Details) - USD ($) $ in Thousands	Apr. 01, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Debt Instrument
Repayments of long-term debt				$ 762,500	$ 1,151,000
Debt extinguishment loss		$ 3,971	$ 3,653	3,971	$ 3,653
2022 Notes
Debt Instrument
Redemption rate (as a percent)	100.00%
Repayments of long-term debt	$ 350,000
Interest paid	$ 10,500
Debt extinguishment loss		$ 4,000		$ 4,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Increase (Decrease) in Stockholders' Equity
Beginning balance	$ 999,472	$ 842,292	$ 1,085,963	$ 841,574
Other comprehensive income (loss)	265	(5,320)	(5,521)	(8,545)
Ending balance	950,873	832,890	950,873	832,890
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity
Beginning balance	(7,173)	2,548	(1,387)	5,773
Loss recognized in other comprehensive income (loss), net of tax benefit of $155, $0, $1,745 and $0, respectively	(583)	(4,529)	(6,566)	(6,828)
(Gain) loss reclassified from accumulated other comprehensive income (loss) to interest expense, net of tax benefit of $225, $0, $277 and $0, respectively	848	(791)	1,045	(1,717)
Other comprehensive income (loss)	265	(5,320)	(5,521)	(8,545)
Ending balance	(6,908)	(2,772)	(6,908)	(2,772)
Loss recognized in other comprehensive income, tax expense (benefit)	(155)	0	(1,745)	0
(Gain) loss reclassified from accumulated other comprehensive loss, tax expense (benefit)	$ (225)	0	$ (277)	0
Valuation adjustment		$ 1,100		$ 1,800

Equity - Cash Dividends (Detail

Equity - Cash Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 29, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Distributions
Dividends per Common Share (in dollars per share)		$ 0.145	$ 0.145	$ 0.145	$ 0.145	$ 0.132	$ 0.132	$ 0.290	$ 0.264
Total Dividends		$ 22,176	$ 22,171	$ 22,031	$ 22,062	$ 17,206	$ 17,231	$ 44,347	$ 34,437
Subsequent Event
Distributions
Dividend declared per common stock (in dollars per share)	$ 0.145

Revenue from Contract with Cu_3

Revenue from Contract with Customers - Disaggregate Revenue (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)segment	Jun. 30, 2019USD ($)
Disaggregation of Revenue
Contract revenue	$ 220,316	$ 238,390	$ 470,013	$ 474,549
Number of reportable segments | segment			2
Contract Operations
Disaggregation of Revenue
Contract revenue	187,949	186,258	$ 394,923	368,765
Contract Operations | Transferred at Point in Time
Disaggregation of Revenue
Contract revenue	1,500	2,200	3,100	4,400
Contract Operations | 0 - 1,000 horsepower per unit
Disaggregation of Revenue
Contract revenue	57,728	63,683	124,468	127,422
Contract Operations | 1,001 - 1,500 horsepower per unit
Disaggregation of Revenue
Contract revenue	78,026	75,598	162,878	149,938
Contract Operations | Over 1,500 horsepower per unit
Disaggregation of Revenue
Contract revenue	51,618	45,969	106,209	89,394
Contract Operations | Other
Disaggregation of Revenue
Contract revenue	577	1,008	1,368	2,011
Aftermarket Services
Disaggregation of Revenue
Contract revenue	32,367	52,132	75,090	105,784
Aftermarket Services | Services
Disaggregation of Revenue
Contract revenue	19,081	33,281	44,531	66,802
Aftermarket Services | OTC parts and components sales
Disaggregation of Revenue
Contract revenue	$ 13,286	$ 18,851	$ 30,559	$ 38,982

Revenue from Contract with Cu_4

Revenue from Contract with Customers - Remaining Performance Obligation (Details) $ in Thousands	Jun. 30, 2020USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 416,802
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 172,639
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied, expected timing	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 170,084
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 65,438
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 7,532
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 1,030
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 79
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied, expected timing	1 year

Revenue from Contract with Cu_5

Revenue from Contract with Customers - Contract Balances (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Disaggregation of Revenue
Accounts receivable, trade	$ 124,587		$ 144,865
Contract liability with customer	6,900		11,400
Deferred revenue recognized in earnings	12,762	$ 25,227
Deferred revenue	8,253	$ 19,747
Contract with Customers
Disaggregation of Revenue
Accounts receivable, trade	$ 118,800		$ 139,400

Long-Lived Asset Impairment (De

Long-Lived Asset Impairment (Details) hp in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)CompressorUnithp	Jun. 30, 2019USD ($)CompressorUnithp	Jun. 30, 2020USD ($)CompressorUnithp	Jun. 30, 2019USD ($)CompressorUnithp
Impaired Long-Lived Assets Held and Used
Impairment recorded on idle compressor units retired from the active fleet (in dollars)	$ 55,210	$ 8,632	$ 61,405	$ 11,724
Idle Compressor Units
Impaired Long-Lived Assets Held and Used
Idle compressor units retired from the active fleet (compressors) | CompressorUnit	450	160	535	180
Horsepower of idle compressor units retired from the active fleet (horsepower) | hp	184	41	207	56
Impairment recorded on idle compressor units retired from the active fleet (in dollars)	$ 55,210	$ 8,632	$ 61,405	$ 11,724

Restructuring Charges - Descrip

Restructuring Charges - Description (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Restructuring Charges
Restructuring costs	$ 2,408	$ 4,136
Changes to accrued liability balance related to restructuring
Severance costs		3,974
Non-cash expense		162
Payments		(2,885)
Balance at end of period	$ 1,251	$ 1,251

Restructuring Charges - By segm

Restructuring Charges - By segment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Restructuring charges
Restructuring costs	$ 2,408	$ 4,136
Corporate
Restructuring charges
Restructuring costs	736	1,361
Contract Operations | Operating Segments
Restructuring charges
Restructuring costs	1,386	1,864
Aftermarket Services | Operating Segments
Restructuring charges
Restructuring costs	$ 286	$ 911

Income Taxes (Details)

Income Taxes (Details) $ in Millions	Jun. 30, 2020USD ($)
Income Tax Disclosure [Abstract]
Potential decrease in unrecognized tax benefit	$ 2.7

Earnings Per Share - Net Income

Earnings Per Share - Net Income Attributable to Common Stockholders (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Summary of net income attributable to Archrock common stockholders used in the calculation of basic and diluted income per common share
Income (loss) from continuing operations	$ (30,381)	$ 11,423	$ (91,568)	$ 31,152
Loss from discontinued operations, net of tax				(273)
Net income (loss)	(30,381)	11,423	(91,568)	30,879
Less: Net income attributable to participating securities	(321)	(261)	(643)	(574)
Net income attributable to common stockholders	$ (30,702)	$ 11,162	$ (92,211)	$ 30,305
Potential shares of common stock included in computing diluted income attributable to Exterran common stockholders per common share
Weighted average common shares outstanding including participating securities (in shares)	152,937	130,330	152,750	130,276
Less: Weighted average participating securities outstanding (in shares)	(2,194)	(2,002)	(2,122)	(2,015)
Weighted average common shares outstanding - used in basic net income (loss) per common share (in shares)	150,743	128,328	150,628	128,261
Weighted average common shares outstanding - used in diluted net income (loss) per common share (in shares)	150,743	128,354	150,628	128,297
On exercise of options and vesting of performance-based restricted stock units
Potential shares of common stock included in computing diluted income attributable to Exterran common stockholders per common share
Net dilutive potential common shares issuable (in shares)		25		33
On settlement of employee stock purchase plan shares
Potential shares of common stock included in computing diluted income attributable to Exterran common stockholders per common share
Net dilutive potential common shares issuable (in shares)		1		3

Earnings Per Share - Anti-dilut

Earnings Per Share - Anti-dilutive Shares (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable
Net dilutive potential common shares issuable (shares)	174	154	193	154
On exercise of options where exercise price is greater than average market value for the period
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable
Net dilutive potential common shares issuable (shares)	95	154	111	154
On exercise of options and vesting of performance-based restricted stock units
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable
Net dilutive potential common shares issuable (shares)	57		57
On settlement of employee stock purchase plan shares
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable
Net dilutive potential common shares issuable (shares)	22		25

Derivatives - Interest Rate Swa

Derivatives - Interest Rate Swaps (Details) $ in Millions	Jun. 30, 2020USD ($)
Derivatives Designated as Hedging Instruments | March 2022
Notional Disclosures
Notional amount of interest rate swaps	$ 300

Derivatives - Interest Rate Ris

Derivatives - Interest Rate Risk - Narratives (Details) - Derivatives Designated as Hedging Instruments - Interest Rate Swaps $ in Millions	Jun. 30, 2020USD ($)
Derivatives
Deferred pre-tax losses to be reclassified during next 12 months	$ 4.7
Weighted average effective fixed interest rate on interest rate swaps (as a percent)	1.80%

Derivatives - Effect of Derivat

Derivatives - Effect of Derivative Instruments on Balance Sheet (Details) - Derivatives Designated as Hedging Instruments - Interest Rate Swaps - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair Value Asset
Derivative assets		$ 12
Derivative liability	$ 8,746	1,768
Other current assets
Fair Value Asset
Derivative assets		12
Accrued liabilities
Fair Value Asset
Derivative liability	4,747	593
Other liabilities
Fair Value Asset
Derivative liability	$ 3,999	$ 1,175

Derivatives - Effect of Deriv_2

Derivatives - Effect of Derivative Instruments on Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Effect of derivative instruments on results of operations
Total amount of interest expense in which the effects of cash flow hedges are recorded	$ 25,778	$ 25,954	$ 55,443	$ 49,571
Interest Rate Swaps
Effect of derivative instruments on results of operations
Pre-tax loss recognized in other comprehensive income (loss)	(738)	(4,529)	(8,311)	(6,828)
Pre-tax gain (loss) reclassified from accumulated other comprehensive loss into interest expense	(1,073)	791	(1,322)	1,717
Total amount of interest expense in which the effects of cash flow hedges are recorded	$ 25,778	$ 25,954	$ 55,443	$ 49,571

Fair Value Measurements - Measu

Fair Value Measurements - Measured on Recurring Basis (Details) - Recurring Basis - Level 2 - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair value measurement of assets and liabilities
Derivative asset		$ 12
Derivative liability	$ 8,746	$ 1,768

Fair Value Measurements - Mea_2

Fair Value Measurements - Measured on Nonrecurring Basis (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020USD ($)	Jun. 30, 2020USD ($)Y$ / hp	Dec. 31, 2019USD ($)
Valuation of our interest rate swaps and impaired assets
Goodwill impairment | $	$ 99,800	$ 99,830
Nonrecurring Basis | Level 3
Valuation of our interest rate swaps and impaired assets
Impaired compressors | $		$ 2,324	$ 5,859
Measurement Input, Discount for market liquidity | Weighted average
Valuation of our interest rate swaps and impaired assets
Measurement input		0.77
Impaired Long-Lived Assets | Measurement Input, Weighted average disposal period | Level 3 | Weighted average
Valuation of our interest rate swaps and impaired assets
Measurement input | Y		4
Impaired Long-Lived Assets | Measurement Input, Sale proceeds | Level 3 | Minimum
Valuation of our interest rate swaps and impaired assets
Measurement input		0
Impaired Long-Lived Assets | Measurement Input, Sale proceeds | Level 3 | Maximum
Valuation of our interest rate swaps and impaired assets
Measurement input		372
Impaired Long-Lived Assets | Measurement Input, Sale proceeds | Level 3 | Weighted average
Valuation of our interest rate swaps and impaired assets
Measurement input		21

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value of Debt (Details) - Fixed Rate Debt - Level 2 - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, fair value	$ 984,937	$ 1,329,549
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, fair value	$ 932,000	$ 1,400,000

Stock-Based Compensation - Allo

Stock-Based Compensation - Allocated Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost
Total stock-based compensation expense	$ 3,614	$ 2,152	$ 6,072	$ 5,475
Equity awards
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost
Total stock-based compensation expense	2,772	1,512	5,778	3,869
Liability awards
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost
Total stock-based compensation expense	$ 842	$ 640	$ 294	$ 1,606

Stock-Based Compensation - Awar

Stock-Based Compensation - Award Activity (Details) - Restricted Stock, Restricted Stock Units, Performance Units, Cash Settled Restricted Stock Units and Cash Settled Performance Units shares in Thousands	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Shares
Non-vested awards at the beginning of the period (in shares) | shares	2,022
Granted (in shares) | shares	1,412
Vested (in shares) | shares	(358)
Canceled (in shares) | shares	(59)
Non-vested awards at the end of the period (in shares) | shares	3,017
Weighted Average Grant Date Fair Value Per Share
Non-vested awards at the beginning of the period (in dollars per share) | $ / shares	$ 10.25
Granted (in dollars per share) | $ / shares	9.47
Vested (in dollars per share) | $ / shares	9.45
Canceled (in dollars per share) | $ / shares	10.18
Non-vested awards at the end of the period (in dollars per share) | $ / shares	$ 9.98

Stock-Based Compensation - Unre

Stock-Based Compensation - Unrecognized cost and 2020 Plan (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Apr. 30, 2020	Dec. 31, 2019
Stock-Based Compensation
Additional paid-in capital	$ 3,419,512		$ 3,412,509
2020 Plan
Unrecognized compensation
Number of shares authorized for issuance	8,500,000
Reduction in number of shares available for issuance for each stock-settled award granted		1
Cash Settled Restricted Stock Units and Cash Settled Performance Units
Stock-Based Compensation
Non-vested awards at the end of the period (in shares)	529,000
Restricted Stock and Stock-settled Performance Units [Member]
Stock-Based Compensation
Non-vested awards at the end of the period (in shares)	2,488,000
Restricted Stock, Restricted Stock Units, Performance Units, Cash Settled Restricted Stock Units and Cash Settled Performance Units
Stock-Based Compensation
Non-vested awards at the end of the period (in shares)	3,017,000		2,022,000
Unrecognized compensation
Expected unrecognized compensation cost related to unvested awards (in dollars)	$ 18,900
Weighted-average period over which the expected unrecognized compensation cost related to unvested stock options will be recognized	2 years

Commitments and Contingencies -

Commitments and Contingencies - Guarantees Not Recorded on Balance Sheet (Details) $ in Millions	Jun. 30, 2020USD ($)
Performance Bonds
Commitments and contingencies
Maximum potential undiscounted payments	$ 2.2

Commitments and Contingencies (

Commitments and Contingencies (Narratives) (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Loss contingency
Accrued liability for the outcomes of non-income based tax audits	$ 2.6	$ 2.5
Indemnification liability	$ 1.6	$ 2.8

Related Party Transactions (Det

Related Party Transactions (Details) shares in Millions, $ in Millions	Aug. 01, 2019USD ($)directorshares	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Affiliated Entity | JDH Capital | Archrock, Inc.
Related Party Transaction
Ownership interest (percent)		14.20%		14.20%
Affiliated Entity | JDH Capital
Related Party Transaction
Number of directors shareholder and affiliates have right to designate | director	1
Affiliated Entity | JDH Capital | Elite Acquisition | Common Stock
Related Party Transaction
Minimum ownership interest of outstanding shares required to elect a board of director (percent)		7.50%		7.50%
Affiliated Entity | Hilcorp
Related Party Transaction
Revenue from related party transactions		$ 10.2	$ 4.9	$ 20.8	$ 10.4
Due from related party		$ 4		$ 4		$ 5.1
Affiliated Entity | Jeffery D. Hildebrand
Related Party Transaction
Compensation paid by entity to individual in role as Director	$ 0
Elite Acquisition | Common Stock
Related Party Transaction
Shares issued as compensation for asset acquisition (shares) | shares	21.7
Elite Acquisition | JDH Capital | Common Stock
Related Party Transaction
Shares issued as compensation for asset acquisition (shares) | shares	21.7

Segments (Narratives) (Details)

Segments (Narratives) (Details)	6 Months Ended
	Jun. 30, 2020segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segments - Revenue and Gross Ma

Segments - Revenue and Gross Margin by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue and other financial information by reportable segment
Revenues	$ 220,316	$ 238,390	$ 470,013	$ 474,549
Gross margin	128,240	125,654	264,295	243,176
Contract Operations
Revenue and other financial information by reportable segment
Revenues	187,949	186,258	394,923	368,765
Gross margin	124,559	115,737	252,882	223,509
Aftermarket Services
Revenue and other financial information by reportable segment
Revenues	32,367	52,132	75,090	105,784
Gross margin	$ 3,681	$ 9,917	$ 11,413	$ 19,667

Segments - Reconciliation of Ne

Segments - Reconciliation of Net Income to Gross Margin (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Reconciliation Net Income (Loss) to Gross Margin
Total gross margin	$ 128,240		$ 125,654	$ 264,295	$ 243,176
Less:
Selling, general and administrative	28,745		28,618	59,371	57,607
Depreciation and amortization	48,849		45,482	98,671	89,588
Long-lived asset impairment	55,210		8,632	61,405	11,724
Goodwill impairment		$ 99,800		99,830
Restatement and other charges			24		445
Restructuring costs	2,408			4,136
Interest expense	25,778		25,954	55,443	49,571
Debt extinguishment loss	3,971		3,653	3,971	3,653
Transaction-related costs			2,687		2,867
(Gain) loss on sale of assets, net	2,189		(1,801)	(1,927)	(1,785)
Other income, net	(438)		(209)	(993)	(430)
Income (loss) before income taxes	$ (38,472)		$ 12,614	$ (115,612)	$ 29,936

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Thousands	Jul. 09, 2020	Jun. 30, 2020
Subsequent Events
Gain on sale		$ 3,172
Disposed of by Sale | July 2020 Disposition
Subsequent Events
Gain on sale	$ 9,000