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Discontinued Operations - Narratives (Details) - USD ($) |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 04, 2015 | Nov. 03, 2015 | Jan. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from lines of credit |  | $ 532,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments credit facility | $ 369,200,000 | 326,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding borrowings |  | 350,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principle amount of senior notes | $ 350,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on credit facility | 7.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price, percentage | 101.813% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other income |  |  |  | $ 400,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative |  |  |  | 600,000 | $ 32,621,000 | $ 31,357,000 | $ 32,568,000 | $ 32,683,000 | $ 31,286,000 | $ 33,739,000 | $ 63,925,000 | $ 65,025,000 | $ 96,546,000 | $ 97,708,000 | $ 131,919,000 | $ 132,651,000 | $ 118,851,000
Business Acquisition, Contingent Consideration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of insurance proceeds |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000,000 |  |
PDVSA Gas | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Installment payments received |  |  | $ 5,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exterran Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received from contractual arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 493,000,000 |  |
Scheduled installment payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 79,300,000 |  |
Payments to acquire equipment |  |  |  | $ 44,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Event III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Separation and distribution agreement, receivable from sale of nationalized assets, maximum |  | $ 25,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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