Statements of Consolidated and Combined Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Accounts receivable less reserve $ 0.3  
Predecessor [Member]    
Accounts receivable less reserve   $ 0.3
Common Units [Member]    
Limited Partners' Capital Account, Units Issued 53,834,784 0
Limited Partners' Capital Account, Units Outstanding 53,834,784 0
Subordinated Units [Member]    
Limited Partners' Capital Account, Units Issued 46,811,398 0
Limited Partners' Capital Account, Units Outstanding 46,811,398 0