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Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 39.5 $ 106.4
Due from affiliates of the General Partner 4.0 10.4
Accounts receivable 0.6 0.8
Inventories 8.6 10.7
Other current assets 7.9 0.0
Total current assets 60.6 128.3
Property, plant and equipment, net 301.3 307.0
Other assets 11.4 8.4
Total assets 373.3 443.7
Current liabilities:    
Accounts payable and accrued expenses 27.8 23.5
Due to affiliates of the General Partner 4.1 4.5
Other current liabilities 0.0 15.9
Total current liabilities 31.9 43.9
Other liabilities 2.6 12.8
Partners' capital:    
General Partner's interest 50.3 76.2
Total partners' capital 338.8 387.0
Total liabilities and partners' capital 373.3 443.7
Common    
Partners' capital:    
Limited partners' interests, 18,501,576 Common Units authorized, issued and outstanding; 184,072 Class B Common Units authorized, issued and outstanding 286.7 308.5
Class B Common    
Partners' capital:    
Limited partners' interests, 18,501,576 Common Units authorized, issued and outstanding; 184,072 Class B Common Units authorized, issued and outstanding $ 1.8 $ 2.3