Organization and Operations (Details)				1 Months Ended	6 Months Ended	12 Months Ended				0 Months Ended	3 Months Ended
	Sep. 30, 2013 Retail propane and distillate operations item	Sep. 30, 2013 Retail propane and distillate operations Minimum item	Nov. 30, 2011 SemStream item	Jan. 31, 2012 Pacer Propane Holdings, L.P. item	Sep. 30, 2013 Retail propane operations item	Mar. 31, 2012 Retail propane operations item	Mar. 31, 2013 Retail and distillate operations acquisitions item	Mar. 31, 2013 Crude oil logistics and water services item	Jul. 02, 2013 Crescent Terminals, LLC item	Aug. 02, 2013 Oilfield Water Lines LP item	Sep. 30, 2013 Crude Oil Logistics item	Jul. 02, 2013 Big Lake item
Acquisitions Subsequent to Initial Public Offering
Number of acquired natural gas liquids terminals			12
Number of companies associated with the acquiree entity				7						7
Number of business combination transactions					3	3	6	4			2
Number of crude oil terminals acquired									1
Number of tow boats acquired									4
Number of crude oil barges acquired									7
Number of water disposal facilities acquired												1
Number of owned terminals	17
Number of states in which entity operates		20