CONSOLIDATED STATEMENTS OF MEMBERS’ EQUITY (USD $) In Thousands, except Share data	Total USD ($)	Units [Member]	Members' Equity [Member] USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)
Balance at Dec. 31, 2010	$ 541,463		$ 540,992	$ 471
Balance, units, at Dec. 31, 2010		42,544,659
Net income (loss)	69,636		69,636	0
Other comprehensive income (loss)	(23,136)		0	(23,136)
Distributions to unitholders	(82,966)		(82,966)	0
Unit-based compensation	1,886		1,886	0
Unit-based compensation, units		13,841
Balance at Dec. 31, 2011	506,883		529,548	(22,665)
Balance, units, at Dec. 31, 2011		42,558,500
Net income (loss)	2,128		2,128	0
Other comprehensive income (loss)	(9,357)		0	(9,357)
Distributions to unitholders	(88,345)		(88,345)	0
Unit-based compensation	1,513		1,513	0
Unit-based compensation, units		41,691
Balance at Dec. 31, 2012	412,822		444,844	(32,022)
Balance, units, at Dec. 31, 2012		42,600,191
Net income (loss)	(11,034)		(11,034)	0
Other comprehensive income (loss)	40,963		0	40,963
Distributions to unitholders	(92,912)		(92,912)	0
Unit-based compensation	147		147	0
Unit-based compensation, units		56,090
Balance at Dec. 31, 2013	$ 349,986		$ 341,045	$ 8,941
Balance, units, at Dec. 31, 2013		42,656,281