Statements of Changes in Partners' Capital (USD $) In Thousands	Total USD ($)	Limited Partner [Member] USD ($)	General Partner [Member]
Beginning balance at Dec. 31, 2012	$ 121,679	$ 121,679
Beginning balance, Partnership Units, shares at Dec. 31, 2012		21,974	1
Equity-based compensation expense, net of equity awards repurchased, Capital Accounts	1,292	1,292
Equity-based compensation expense, net of equity awards repurchased, Partnership Units, shares
Member advances exchanged for LP units, Capital Accounts	10,000	10,000
Member advances exchanged for LP units, Partnership Units, shares		400
Partnership distributions	(7,675)	(7,675)
Net loss	(597)	(597)
Other comprehensive income	220	220
Ending balance at Sep. 30, 2013	$ 124,919	$ 124,919
Ending balance, Partnership Units, shares at Sep. 30, 2013		22,374	1