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SEGMENT INFORMATION - Additional Information (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 6 Months Ended
Jun. 30, 2014
ft
Jun. 30, 2013
Geostream
Apr. 09, 2013
Geostream
Sep. 01, 2009
Geostream
Oct. 31, 2008
Geostream
Jun. 30, 2014
Geostream
International
Apr. 09, 2013
Geostream
International
Aug. 05, 2013
Al Mansoori Key Energy Services L L C [Member]
Segment Reporting Information [Line Items]                
Percentage of acquired interest   50.00% 50.00%   26.00%   50.00%  
Aggregate cost of acquired interest     $ 14.6   $ 17.4   $ 14.6  
Cumulative percentage ownership after all transactions           100.00%    
Description of rigs used Our rigs encompass various sizes and capabilities, allowing us to service all types of wells with depths up to 20,000 feet.              
Maximum depth of wells that can be serviced (in feet) 20,000              
Business Acquisition, Cost of Acquired Entity, Purchase Price       $ 16.4       $ 5.1