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Goodwill and Intangible Assets - Additional Information (Detail) (USD $)
 1 Months Ended 12 Months Ended
Oct. 31, 2010
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Line Items]        
Accumulated impairment losses   $ 0 $ 0  
Goodwill impairment, long-term growth rate   3.00%    
Amortization expense   3,993,000 4,110,000 4,110,000
Contract Drilling
        
Goodwill and Intangible Assets Disclosure [Line Items]        
Goodwill impairment, discount rate   11.87%    
Pressure Pumping
        
Goodwill and Intangible Assets Disclosure [Line Items]        
Goodwill impairment, discount rate   12.40%    
Non-compete Agreement
        
Goodwill and Intangible Assets Disclosure [Line Items]        
Contract term 3 years      
Amortization period (in years)   3 years    
Amortization expense   350,000 467,000 467,000
Customer Relationships
        
Goodwill and Intangible Assets Disclosure [Line Items]        
Amortization period (in years)   7 years    
Amortization expense   $ 3,600,000 $ 3,600,000 $ 3,600,000