CONSOLIDATED STATEMENT OF CHANGES IN PARTNERS' CAPITAL (UNAUDITED) (USD $) In Thousands	Total	General Partner [Member]	Public Common [Member]	Affiliated Common [Member]	Subordinated [Member]
Balances at Dec. 31, 2010	$ 197,605	$ 708	$ 276,723	$ (48,898)	$ (30,928)
Proceeds from over-allotment	41,963	0	41,963	0	0
Other contributions (See Note 12)	9,553	0	0	5,851	3,702
Recognition of unit-based awards (See Note 11)	624	0	624	0	0
Distribution to the Fund	(42,000)	0	0	(25,727)	(16,273)
Distributions to unitholders	(16,416)	(17)	(7,965)	(5,166)	(3,268)
Net loss	(13,417)	(13)	(6,409)	(4,285)	(2,710)
Balances at Jun. 30, 2011	$ 177,912	$ 678	$ 304,936	$ (78,225)	$ (49,447)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
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+ Details

- Definition

The amount of ownership interest of different classes of partners in limited partnership.

+ References+ Details

- Definition

Total contributions made by each class of partners (i.e., general, limited and preferred partners).

+ References+ Details

- Definition

Total change in each class of partners' capital accounts during the year due to unit-based compensation. All partners include general, limited and preferred partners.

+ References+ Details