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Basis of Presentation and Significant Accounting Policies - Additional Information (Details)
12 Months Ended
Dec. 31, 2017
USD ($)
country
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Nov. 01, 2016
USD ($)
Accounting Policies [Abstract]        
Goodwill impairment $ 0 $ 0 $ 0  
Number of countries in which entity operates | country 50      
Amortization expense for intangible assets $ 11,400,000 3,500,000 1,800,000  
Realized gains (losses) on investments 2,400,000 1,100,000 (700,000)  
Depreciation expense 110,700,000 110,700,000 $ 107,200,000  
Deferred revenue 4,700,000 18,100,000    
Short-term investments 81,021,000 0    
Goodwill [Line Items]        
Goodwill 211,040,000 $ 211,063,000    
U.S. Services        
Goodwill [Line Items]        
Goodwill 16,200,000      
Tubular Sales        
Goodwill [Line Items]        
Goodwill 2,400,000      
Blackhawk        
Goodwill [Line Items]        
Goodwill $ 192,400,000     $ 192,400,000