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Discontinued Operations (Narratives) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Apr. 11, 2017	Apr. 04, 2017	Dec. 31, 2016
Discontinued Operations
Unrecognized tax benefits	$ 21,100,000		$ 21,100,000				$ 9,700,000
Selling, general and administrative	29,108,000	$ 25,448,000	81,823,000	$ 87,745,000
Exterran Corporation
Discontinued Operations
Unrecognized tax benefits	6,400,000		6,400,000
Indemnification asset	6,400,000		6,400,000
Spinoff | Exterran Corporation
Discontinued Operations
Other income				500,000
Selling, general and administrative				900,000
Compression units acquired			115,300,000	47,200,000
Event III
Discontinued Operations
Separation and distribution agreement, receivable from sale of nationalized assets, maximum	$ 25,000,000		25,000,000		$ 25,000,000.0
Exterran Corporation
Discontinued Operations
Proceeds from sale of expropriated assets installment payment			19,700,000	$ 49,200,000
Scheduled installment payments			$ 20,900,000
Exterran Corporation | Senior Notes
Discontinued Operations
Interest rate (as a percent)						8.125%

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Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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