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Revenue from Contract with Customers - Disaggregate Revenue (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) hp segment | Dec. 31, 2019 USD ($) hp | Dec. 31, 2018 USD ($) hp
Disaggregation of Revenue |  |  |
Revenue | $ 874,970 | $ 965,485 | $ 904,441
Number of reportable segments | segment | 2 |  |
Contract Operations |  |  |
Disaggregation of Revenue |  |  |
Revenue | $ 738,918 | 771,539 | 672,536
Contract Operations | Transferred at Point in Time |  |  |
Disaggregation of Revenue |  |  |
Revenue | 5,600 | 7,900 | 6,600
Contract Operations | 0 - 1,000 horsepower per unit |  |  |
Disaggregation of Revenue |  |  |
Revenue | $ 224,702 | $ 259,985 | $ 241,810
Contract Operations | 0 - 1,000 horsepower per unit | Minimum |  |  |
Disaggregation of Revenue |  |  |
Compressor units horsepower (horsepower) | hp | 0 | 0 | 0
Contract Operations | 0 - 1,000 horsepower per unit | Maximum |  |  |
Disaggregation of Revenue |  |  |
Compressor units horsepower (horsepower) | hp | 1,000 | 1,000 | 1,000
Contract Operations | 1,001 - 1,500 horsepower per unit |  |  |
Disaggregation of Revenue |  |  |
Revenue | $ 305,185 | $ 316,082 | $ 276,775
Contract Operations | 1,001 - 1,500 horsepower per unit | Minimum |  |  |
Disaggregation of Revenue |  |  |
Compressor units horsepower (horsepower) | hp | 1,001 | 1,001 | 1,001
Contract Operations | 1,001 - 1,500 horsepower per unit | Maximum |  |  |
Disaggregation of Revenue |  |  |
Compressor units horsepower (horsepower) | hp | 1,500 | 1,500 | 1,500
Contract Operations | Over 1,500 horsepower per unit |  |  |
Disaggregation of Revenue |  |  |
Revenue | $ 206,749 | $ 191,510 | $ 149,783
Contract Operations | Over 1,500 horsepower per unit | Minimum |  |  |
Disaggregation of Revenue |  |  |
Compressor units horsepower (horsepower) | hp | 1,500 | 1,500 | 1,500
Contract Operations | Other |  |  |
Disaggregation of Revenue |  |  |
Revenue | $ 2,282 | $ 3,962 | $ 4,168
Aftermarket Services |  |  |
Disaggregation of Revenue |  |  |
Revenue | 136,052 | 193,946 | 231,905
Aftermarket Services | Services |  |  |
Disaggregation of Revenue |  |  |
Revenue | 79,012 | 122,076 | 142,476
Reversal of revenue due to change in estimate of performance obligation partially satisfied in prior periods |  | 900 |
Aftermarket Services | OTC parts and components sales |  |  |
Disaggregation of Revenue |  |  |
Revenue | $ 57,040 | $ 71,870 | $ 89,429

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- Definition Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12A -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL108322424-203045 + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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