CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Sales:
Product		$ 316,291	$ 252,950
Installations and services		67,827	66,105
Total sales		384,118	319,055
Cost and expenses:
Cost of product		199,593	150,102
Cost of installations and services		66,487	62,912
(Increase) decrease in fair value of derivative instruments		(8,551)	5,536
Delivery and branch expenses		81,133	64,194
Depreciation and amortization expenses		6,561	6,766
General and administrative expenses		6,353	6,420
Finance charge income		(695)	(521)
Operating income		33,237	23,646
Interest expense, net		(1,787)	(1,859)
Amortization of debt issuance costs		(312)	(312)
Income before income taxes		31,138	21,475
Income tax expense		12,863	9,417
Net income		18,275	12,058
General Partner's interest in net income		105	68
Limited Partners' interest in net income		$ 18,170	$ 11,990
Basic and diluted income per Limited Partner Unit	[1]	$ 0.28	$ 0.19
Weighted average number of Limited Partner units outstanding:
Basic and Diluted		55,888	57,281

[1] See Note 13 Earnings Per Limited Partner Unit.