Cash Distributions (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Distributions Made to Members or Limited Partners
Distribution Made to Limited Partner, Distribution Date	Aug. 25, 2014	May 21, 2014	Mar. 03, 2014
Cash distribution per unit	$ 0.13	$ 0.69	$ 0.18	$ 0.71	$ 1.00	$ 2.76
Distribution Made to Limited Partner, Cash Distributions Paid	$ 8,126	$ 43,130	$ 11,250