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Partners' Capital and Distributions - Activity for Series A Preferred Units and Common Units (Details) - shares
 10 Months Ended 12 Months Ended
Nov. 14, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Partners Capital and Distributions        
Limited partner interest 98.00%      
General partner ownership interest 2.00%      
Sale of units (in units)   26,278,288 22,133,904  
Series A Preferred Units        
Partners Capital and Distributions        
Balance, beginning of period (in units) 0 0 0 0
Sale of units (in units)   61,030,127    
Issuance of Series A preferred units in connection with in-kind distributions (in units)   3,358,726    
Balance, end of period (in units)   64,388,853 0 0
Common Units        
Partners Capital and Distributions        
Balance, beginning of period (in units) 397,727,624 397,727,624 375,107,793 359,133,200
Sale of units (in units)   26,278,288 22,133,904 15,375,810
Issuance of common units under LTIP (in units)   480,581 485,927 598,783
Issuance of common units in connection with Simplification Transactions (in units)   244,707,926    
Balance, end of period (in units)   669,194,419 397,727,624 375,107,793