CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 168.7	$ 179.8
Demand deposits with affiliates of the General Partner		8.6
Accounts receivable, net	0.7	0.6
Inventories, net	18.2	17.3
Prepaid expenses and other current assets	0.2
Total current assets	187.8	206.3
Property, plant and equipment, net	89.8	87.8
Other assets	6.9	6.6
Total assets	284.5	300.7
Current liabilities:
Accounts payable and accrued expenses	14.6	18.4
Due to affiliates of the General Partner	2.7
Other current liabilities	23.3	12.0
Total current liabilities	40.6	30.4
Noncurrent liabilities	1.6	1.0
Partners' capital:
General partner's interest	20.6	33.4
Total partners' capital	242.3	269.3
Total liabilities and partners' capital	284.5	300.7
Common
Partners' capital:
Limited partners' interests	220.8	234.8
Class B Common
Partners' capital:
Limited partners' interests	$ 0.9	$ 1.1