XML 57 R54.htm IDEA: XBRL DOCUMENT v3.19.3
Partners' Capital and Distributions - Preferred Unit Distributions (Details) - USD ($)
$ / shares in Units, $ in Millions
Nov. 15, 2019
Nov. 14, 2019
Aug. 14, 2019
May 15, 2019
Feb. 14, 2019
Sep. 30, 2019
Cash Distribution | Series A Preferred Units            
Partners Capital and Distribution [Line Items]            
Preferred unit distribution amount     $ 37.0 $ 37.0 $ 37.0  
Preferred distributions per unit (in dollars per unit)     $ 0.525 $ 0.525 $ 0.525  
Cash Distribution | Series B Preferred Units            
Partners Capital and Distribution [Line Items]            
Preferred unit distribution amount       $ 24.5    
Preferred distributions per unit (in dollars per unit)       $ 30.625    
Forecast | Cash Distribution | Series A Preferred Units            
Partners Capital and Distribution [Line Items]            
Preferred unit distribution amount   $ 37.0        
Preferred distributions per unit (in dollars per unit)   $ 0.525        
Forecast | Cash Distribution | Series B Preferred Units            
Partners Capital and Distribution [Line Items]            
Preferred unit distribution amount $ 24.5          
Preferred distributions per unit (in dollars per unit) $ 30.625          
Other current liabilities | Series B Preferred Units            
Partners Capital and Distribution [Line Items]            
Amount accrued to distributions payable           $ 18.0