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Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2020
Accounting Policies [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 year ended December 31, 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

​

​

3,525

Write-offs charged against allowance

​

​

(2,149)

Balance at December 31, 2020

​

$

3,370
Schedule of estimated useful life of property, plant and equipment

​

​

​

​

Compression equipment, facilities and other fleet assets

    

3 to 30 years

Buildings

​

20 to 35 years

Transportation and shop equipment

​

3 to 10 years

Computer hardware and software

​

3 to 5 years

Other

​

3 to 10 years