Subsequent Events (Details) (Subsequent events, April 2015 Contract Operations Acquisition, USD $)	1 Months Ended
	Apr. 30, 2015 hp customer CompressorUnit
Subsequent Events
Number of customers with service agreements	60
Number of compressor units used to provide compression services	238
Horsepower of compressor units used to provide compression services	148,000
Percentage of available horsepower of the combined U.S. contract operations business of Exterran Holdings and entity from service agreements acquired	3.00%
Number of compressor units acquired	179
Horsepower of compressor units acquired	66,000
Net book value of fleet assets acquired	$ 108,500,000
Accumulated depreciation of fleet assets acquired	59,300,000
Total consideration, excluding transaction costs	$ 102,300,000
Partners' Capital Common Units
Subsequent Events
Units issued in connection with acquisition (in units)	4,000,000
Partners' Capital General Partner Units
Subsequent Events
Units issued in connection with acquisition (in units)	80,000