Long-Lived Asset Impairment	9 Months Ended
Sep. 30, 2015
Asset Impairment Charges [Abstract]
Long-Lived Asset Impairment	11. Long-Lived Asset Impairment We review long-lived assets, including property, plant and equipment and identifiable intangibles that are being amortized, for impairment whenever events or changes in circumstances, including the removal of compressor units from our active fleet, indicate that the carrying amount of an asset may not be recoverable. During the three and nine months ended September 30, 2015, we reviewed the future deployment of our idle compression assets used in our North America contract operations and international contract operations segments for units that were not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on this review, we determined that approximately 155 and 315 idle compressor units totaling approximately 54,000 and 136,000 horsepower would be retired from the active fleet during the three and nine months ended September 30, 2015, respectively. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result, we recorded an $11.9 million and a $37.7 million asset impairment to reduce the book value of each unit to its estimated fair value during the three and nine months ended September 30, 2015, respectively. The fair value of each unit was estimated based on either 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. In connection with our fleet review during the three and nine months ended September 30, 2015, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $11.8 million and $12.8 million during the three and nine months ended September 30, 2015, respectively, to reduce the book value of each unit to its estimated fair value. During the first quarter of 2015, we evaluated a long-term note receivable from the purchaser of our Canadian Operations for impairment. This review was triggered by an offer from the purchaser of our Canadian Operations to prepay the note receivable at a discount to its current book value. The fair value of the note receivable as of March 31, 2015 was based on the amount offered by the purchaser of our Canadian Operations to prepay the note receivable. The difference between the book value of the note receivable at March 31, 2015 and its fair value resulted in the recording of an impairment of long-lived assets of $1.4 million during the nine months ended September 30, 2015. In April 2015, we accepted the offer to early settle this note receivable. During the three and nine months ended September 30, 2014, we evaluated the future deployment of our idle fleet and determined to retire and either sell or re-utilize the key components of approximately 70 and 240 idle compressor units, respectively, representing approximately 26,000 and 72,000 horsepower, respectively, previously used to provide services in our North America contract operations segment. As a result, we performed an impairment review and recorded a $7.9 million and $21.5 million asset impairment to reduce the book value of each unit to its estimated fair value, during the three and nine months ended September 30, 2014, respectively. The fair value of each unit was estimated based on either 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. In connection with our fleet review during the three and nine months ended September 30, 2014, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $4.5 million during both the three and nine months ended September 30, 2014 to reduce the book value of each unit to its estimated fair value.

11. Long-Lived Asset Impairment

We review long-lived assets, including property, plant and equipment and identifiable intangibles that are being amortized, for impairment whenever events or changes in circumstances, including the removal of compressor units from our active fleet, indicate that the carrying amount of an asset may not be recoverable.

During the three and nine months ended September 30, 2015, we reviewed the future deployment of our idle compression assets used in our North America contract operations and international contract operations segments for units that were not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on this review, we determined that approximately 155 and 315 idle compressor units totaling approximately 54,000 and 136,000 horsepower would be retired from the active fleet during the three and nine months ended September 30, 2015, respectively. The retirement of these units from the active fleet triggered a review of these assets for impairment. As a result, we recorded an $11.9 million and a $37.7 million asset impairment to reduce the book value of each unit to its estimated fair value during the three and nine months ended September 30, 2015, respectively. The fair value of each unit was estimated based on either 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.

In connection with our fleet review during the three and nine months ended September 30, 2015, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $11.8 million and $12.8 million during the three and nine months ended September 30, 2015, respectively, to reduce the book value of each unit to its estimated fair value.

During the first quarter of 2015, we evaluated a long-term note receivable from the purchaser of our Canadian Operations for impairment. This review was triggered by an offer from the purchaser of our Canadian Operations to prepay the note receivable at a discount to its current book value. The fair value of the note receivable as of March 31, 2015 was based on the amount offered by the purchaser of our Canadian Operations to prepay the note receivable. The difference between the book value of the note receivable at March 31, 2015 and its fair value resulted in the recording of an impairment of long-lived assets of $1.4 million during the nine months ended September 30, 2015. In April 2015, we accepted the offer to early settle this note receivable.

During the three and nine months ended September 30, 2014, we evaluated the future deployment of our idle fleet and determined to retire and either sell or re-utilize the key components of approximately 70 and 240 idle compressor units, respectively, representing approximately 26,000 and 72,000 horsepower, respectively, previously used to provide services in our North America contract operations segment. As a result, we performed an impairment review and recorded a $7.9 million and $21.5 million asset impairment to reduce the book value of each unit to its estimated fair value, during the three and nine months ended September 30, 2014, respectively. The fair value of each unit was estimated based on either 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.

In connection with our fleet review during the three and nine months ended September 30, 2014, we evaluated for impairment idle units that had been culled from our fleet in prior years and were available for sale. Based upon that review, we reduced the expected proceeds from disposition for certain of the remaining units. This resulted in an additional impairment of $4.5 million during both the three and nine months ended September 30, 2014 to reduce the book value of each unit to its estimated fair value.