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Partners' Capital Series A Preferred Units (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 30, 2017
Mar. 31, 2017
Series A Preferred Units [Member]    
Distribution Made to Limited Partner, Cash Distributions Declared   $ 0
Series A Preferred Units [Member]    
Distribution to preferred units, per unit 10.00%  
Shares Issued, Price Per Share $ 25.0000  
Preferred Units, Issued 12,000,000  
Partners' Capital Account, Private Placement of Units $ 300