Earnings per Limited Partner Units (Tables)

12 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Net Income Allocation and Per Unit Data

The following table presents the net income allocation and per unit data:

Basic and Diluted Earnings Per Limited Partner:	Years Ended September 30,
(in thousands, except per unit data)	2020		2019		2018
Net income	$	55,918	$	17,637	$	55,505
Less General Partners’ interest in net income		377		95		314
Net income available to limited partners		55,541		17,542		55,191
Less dilutive impact of theoretical distribution of    earnings *		6,812		—		6,340
Limited Partner’s interest in net income	$	48,729	$	17,542	$	48,851
Per unit data:
Basic and diluted net income available to limited partners	$	1.22	$	0.35	$	1.01
Less dilutive impact of theoretical distribution of    earnings *		0.15		—		0.12
Limited Partner’s interest in net income under	$	1.07	$	0.35	$	0.89
Weighted average number of Limited Partner units outstanding		45,656		50,814		54,764

* In any accounting period where the Company’s aggregate net income exceeds its aggregate distribution for such period, the Company is required to present net income per limited partner unit as if all of the earnings for the period were distributed, based on the terms of the Partnership agreement, regardless of whether those earnings would actually be distributed during a particular period from an economic or practical perspective. This allocation does not impact the Company’s overall net income or other financial results.