Condensed Consolidated Statement of Partners' Capital (USD $) In Thousands		Total		Common Stock	General Partner	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Sep. 30, 2014		$ 273,245		$ 296,968	$ (105)	$ (23,618)
Beginning Balance, unit at Sep. 30, 2014				57,405	326
Net income		91,241		90,725	516
Unrealized gain on pension plan obligation		1,114	[1]			1,114
Tax effect of unrealized gain on pension plan		(459)				(459)
Distributions		(10,195)		(10,024)	(171)
Retirement of units, shares	[2]			(123)
Retirement of units	[2]	(691)		(691)
Ending Balance at Mar. 31, 2015		$ 354,255		$ 376,978	$ 240	$ (22,963)
Ending Balance, Unit at Mar. 31, 2015				57,282	326

[1] Amount is included within general and administrative expenses.

[2] See Note 3 - Common Unit Repurchase and Retirement.