CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2014
Sales:
Product		$ 911,014		$ 1,431,585		$ 1,734,475
Installations and services		250,324		242,706		227,249
Total sales		1,161,338		1,674,291		1,961,724
Cost and expenses:
Cost of product		539,831		977,631		1,349,432
Cost of installations and services		229,010		225,957		205,868
(Increase) decrease in fair value of derivative instruments		(18,217)		4,187		6,566
Delivery and branch expenses		276,493		309,025		282,646
Depreciation and amortization expenses		26,530		24,930		21,635
General and administrative expenses		23,366		25,908		22,592
Multiemployer pension plan withdrawal charge				17,796
Finance charge income		(3,079)		(4,756)		(6,870)
Operating income		87,404		93,613		79,855
Interest expense, net		(7,485)		(14,059)		(16,854)
Amortization of debt issuance costs		(1,247)		(1,818)		(1,602)
Loss on redemption of debt				(7,345)
Income before income taxes		78,672		70,391		61,399
Income tax expense		33,738		32,835		25,315
Net income		44,934		37,556		36,084
General Partner's interest in net income		252		212		203
Limited Partners' interest in net income		$ 44,682		$ 37,344		$ 35,881
Basic and diluted income per Limited Partner Unit	[1]	$ 0.70	[2]	$ 0.59	[2]	$ 0.57
Weighted average number of Limited Partner units outstanding:
Basic and Diluted		57,022		57,285		57,476

[1] See Note 17 Earnings Per Limited Partner Units.

[2] The sum of the quarters do not add-up to the total due to the weighting of Limited Partner Units outstanding, rounding or the theoretical effects of FASB ASC 260-10-45-60 to Master Limited Partners earnings per unit.