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Long-Lived Assets Impairment (Tables)
9 Months Ended
Sep. 30, 2017
Asset Impairment Charges [Abstract]  
Details of Impairment of Long-Lived Assets Held and Used by Asset
The following table presents the results of our impairment review of compressor units for the three and nine months ended September 30, 2017 and 2016 (dollars in thousands):
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Idle compressor units retired from the active fleet
50

 
60

 
190

 
270

Horsepower of idle compressor units retired from the active fleet
20,000

 
25,000

 
71,000

 
97,000

Impairment recorded on idle compressor units retired from the active fleet
$
5,934

 
$
9,081

 
$
19,686

 
$
29,674

Additional impairment recorded on available-for-sale compressor units previously culled
$

 
$
7,632

 
$

 
$
10,707


In addition to the impairment discussed above, during the three and nine months ended September 30, 2017, $0.8 million of leasehold improvements and furniture and fixtures were impaired in conjunction with the relocation of our corporate office during the third quarter. See Note 12 (“Corporate Office Relocation”) for further details.