Related Party Transactions (Narrative) (Details) (USD $)	6 Months Ended		1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jul. 19, 2011 Citrus Corp [Member]	Jun. 30, 2010 Regency [Member]	Jun. 30, 2011 Regency [Member]	Jun. 30, 2011 Regency [Member]	Dec. 31, 2010 Enterprise [Member] gal	Jun. 30, 2011 Enterprise [Member] gal	Jun. 30, 2011 ETE [Member]	Jun. 30, 2010 ETE [Member]	Jun. 30, 2011 ETE [Member]	Jun. 30, 2010 ETE [Member]
Revenue					$ 19,000,000
Cost of products sold			700,000		19,200,000
Operating expenses			200,000		1,900,000
Management fees received								3,400,000	100,000	8,400,000	300,000
General and administrative expenses				800,000	3,100,000
Propane purchase agreement expiration date	Mar. 01, 2015
Forward mark-to-market derivatives outstanding						1,700,000
Fair value of forward mark-to-market derivatives asset						200,000
Forward derivatives accounted for as cash flow hedges						32,500,000	14,700,000
Forward derivatives accounted for as cash flow hedges at a fair value assets						$ 6,600,000	$ 300,000
Ownership percentage		50.00%