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Organization and Basis of Presentation and Consolidation (Details)
$ in Thousands
6 Months Ended
Sep. 01, 2017
USD ($)
Jun. 30, 2018
USD ($)
segment
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Limited Partners' ownership percentage   100.00%    
Number of reportable segments | segment   4    
Business Acquisition [Line Items]        
Cash payment to acquire business   $ 0 $ 759  
6.500% Senior Unsecured Notes Due October 2025        
Business Acquisition [Line Items]        
Debt issued   $ 550,000   $ 550,000
Private Placement | Class A Convertible Preferred Stock Units        
Business Acquisition [Line Items]        
Temporary equity, stock issued during period (in shares) $ 750,000      
Alkali Business        
Business Acquisition [Line Items]        
Cash payment to acquire business 1,325,000      
Alkali Business | 6.500% Senior Unsecured Notes Due October 2025        
Business Acquisition [Line Items]        
Debt issued 550,000      
Alkali Business | Private Placement | Class A Convertible Preferred Stock Units        
Business Acquisition [Line Items]        
Temporary equity, stock issued during period (in shares) $ 750,000