CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 72.0	$ 113.0
Due from affiliates of the General Partner	23.2	25.2
Accounts receivable	0.3	0.4
Inventories	9.4	9.6
Prepaid expenses and other current assets	2.4	0.3
Total current assets	107.3	148.5
Property, plant and equipment, net	306.0	259.4
Other assets	8.4	7.9
Total assets	421.7	415.8
Current liabilities:
Accounts payable and accrued expenses	21.2	32.4
Due to affiliates of the General Partner	1.8	4.2
Other current liabilities	0.5	3.6
Total current liabilities	23.5	40.2
Other liabilities	1.5	0.7
Partners' capital:
General partner's interest	77.6	70.0
Total partners' capital	396.7	374.9
Total liabilities and partners' capital	421.7	415.8
Common Units
Partners' capital:
Limited partners' interests, 18,501,576 Common Units authorized, issued and outstanding; 184,072 Class B Common Units authorized, issued and outstanding	316.7	302.7
Class B Common Units
Partners' capital:
Limited partners' interests, 18,501,576 Common Units authorized, issued and outstanding; 184,072 Class B Common Units authorized, issued and outstanding	$ 2.4	$ 2.2

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.