Revenue from Contracts with Customers (Tables)

9 Months Ended

Jun. 30, 2019

Revenue from Contract with Customer [Abstract]

Summary of Disaggregation of Revenue

The following table presents our disaggregated revenues by reportable segment for the three and nine months ended June 30, 2019:

	Three Months Ended June 30, 2019						Nine Months Ended June 30, 2019
	Total		Gas Utility		Electric Utility		Total		Gas Utility		Electric Utility
Revenues from contracts with customers:
Core Market:
Residential	$	78,103	$	66,390	$	11,713	$	494,110	$	445,675	$	48,435
Commercial & industrial	34,274		28,717		5,557		202,534		184,504		18,030
Large delivery service	27,857		27,857		—		111,442		111,442		—
Off-system sales and capacity releases	14,115		14,115		—		98,649		98,649		—
Other (a)	8,992		6,810		2,182		7,717		970		6,747
Total revenues from contracts with customers	163,341		143,889		19,452		914,452		841,240		73,212
Other revenues (b)	552		552		—		1,758		1,758		—
Total revenues	$	163,893	$	144,441	$	19,452	$	916,210	$	842,998	$	73,212