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Revenue from Contract with Customers (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

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​	​	​	​	​	​	​
​	​	Three Months Ended
​	​	March 31,
(in thousands)		2021			2020
Contract operations:	​	​		​	​
0 ― 1,000 horsepower per unit	​	$	46,919	​	$	66,740
1,001 ― 1,500 horsepower per unit	​		68,464	​		84,852
Over 1,500 horsepower per unit	​		50,403	​		54,591
Other (1)	​		248	​		791
Total contract operations (2)	​		166,034	​		206,974
​	​	​	​	​	​	​
Aftermarket services:	​			​
Services	​		16,892	​		25,450
OTC parts and components sales	​		12,505	​		17,273
Total aftermarket services (3)	​		29,397	​		42,723
​	​	​	​	​	​	​
Total revenue	​	$	195,431	​	$	249,697

(1) Primarily relates to fees associated with owned non-compression equipment.

(2) Includes $1.0 million and $1.6 million for the three months ended March 31, 2021 and 2020, 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.

(3) All service revenue within aftermarket services is recognized over time. All OTC parts and components sales revenue is recognized at a point in time.

Schedule of remaining Performance Obligation

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(in thousands)

2021

2022

2023

2024

2025

Total

Remaining performance obligations

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$

205,343

​

$

89,252

​

$

15,014

​

$

1,860

​

$

168

​

$

311,637

Summary of changes in the allowance for credit losses balance

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​	​	​	​
(in thousands)	​	​	​
Balance at December 31, 2020		$	3,370
Provision for credit losses	​	​	224
Write-offs charged against allowance	​	​	(300)
Balance at March 31, 2021	​	$	3,294

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- Definition

Tabular disclosure of allowance for credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

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- Definition

Tabular disclosure of expected timing for satisfying remaining performance obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

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