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Long-Lived Asset Impairment - Narratives (Details) hp in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2018 USD ($) hp | Dec. 31, 2017 USD ($) hp | Dec. 31, 2016 USD ($) hp
Impaired Long-Lived Assets Held and Used |  |  |  |  |  |  |  |  |  |  |
Long-lived asset impairment | $ 9,804 | $ 6,660 | $ 6,953 | $ 4,710 | $ 8,284 | $ 7,105 | $ 5,508 | $ 8,245 | $ 28,127 | $ 29,142 | $ 87,435
Corporate Office Relocation |  |  |  |  |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used |  |  |  |  |  |  |  |  |  |  |
Remaining lease and relocation cost |  |  |  |  |  |  |  |  | $ 0 | 2,113 |
Asset Write Off | Corporate Office Relocation |  |  |  |  |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used |  |  |  |  |  |  |  |  |  |  |
Remaining lease and relocation cost |  |  |  |  |  |  |  |  |  | $ 795 |
Idle compressor units |  |  |  |  |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used |  |  |  |  |  |  |  |  |  |  |
Horsepower of idle compressor units retired from the active fleet (horsepower) | hp |  |  |  |  |  |  |  |  | 115 | 100 | 262
Physical Asset Observations And Other Events |  |  |  |  |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used |  |  |  |  |  |  |  |  |  |  |
Long-lived asset impairment |  |  |  |  |  |  |  |  |  | $ 2,900 |
Horsepower of idle compressor units retired from the active fleet (horsepower) | hp |  |  |  |  |  |  |  |  |  | 7 |

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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 Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + 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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