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Long-Lived Asset Impairment (Detail) hp in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($) compressor_unit hp | Dec. 31, 2014 USD ($) compressor_unit hp | Dec. 31, 2013 USD ($) compressor_unit hp
Idle compressor units |  |  |
Long-Lived Asset Impairment |  |  |
Number of long-lived assets that the entity determined to retire and either sell or re-utilize key components (compressor units) | compressor_unit | 900 | 290 | 280
Horsepower retired from the contract operations business (horsepower) | hp | 371 | 112 | 76
Long-lived asset impairment | $ 111.7 | $ 30.4 | $ 14.9
Idle compressor units previously impaired |  |  |
Long-Lived Asset Impairment |  |  |
Long-lived asset impairment | $ 13.3 | 11.7 |
Other long lived assets |  |  |
Long-Lived Asset Impairment |  |  |
Long-lived asset impairment |  | $ 0.7 | $ 1.8

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- Definition The number of long-lived assets that the entity determined to retire and either sell or re-utilize key components. + References No definition available. + Details
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- Definition The capacity of long-lived assets that the entity determined to retire and either sell or re-utilize key components, expressed in horsepower. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 225 -Section 45 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28367520&loc=d3e92212-112881 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Impairment -URI http://asc.fasb.org/extlink&oid=6515133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 + Details
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