Revenue (Tables)

6 Months Ended

Mar. 31, 2019

Revenue From Contract With Customer [Abstract]

Schedule of Revenue Disaggregated by Source and Customer Type

The following tables show revenue disaggregated by source and customer type.

	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire
Gas Utility:
Residential	$	551.3		$	944.9
Commercial & industrial		185.9			316.2
Transportation		31.3			60.8
Off-system & other incentive		11.5			26.4
Other customer revenue		10.9			23.6
Total revenue from contracts with customers		790.9			1,371.9
Changes in accrued revenue under alternative revenue programs		(14.1	)		(19.9	)
Total Gas Utility operating revenues		776.8			1,352.0
Gas Marketing:
Revenue from contracts with retail customers		25.5			51.3
Revenue from wholesale derivative contracts		—			—
Total Gas Marketing operating revenues		25.5			51.3
Other		4.3			9.7
Total before eliminations		806.6			1,413.0
Intersegment eliminations (see Note 10, Information by Operating Segment)		(3.1	)		(7.5	)
Total Operating Revenues	$	803.5		$	1,405.5

	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire Missouri
Residential	$	410.9		$	713.0
Commercial & industrial		129.2			218.3
Transportation		9.9			18.9
Off-system & other incentive		11.5			26.4
Other customer revenue		4.2			6.8
Total revenue from contracts with customers		565.7			983.4
Changes in accrued revenue under alternative revenue programs		(9.1	)		(13.6	)
Total Operating Revenues	$	556.6		$	969.8

Spire Alabama
Residential	$	116.9		$	192.3
Commercial & industrial		44.1			75.5
Transportation		18.8			37.0
Other customer revenue		5.3			14.9
Total revenue from contracts with customers		185.1			319.7
Changes in accrued revenue under alternative revenue programs		(4.7	)		(5.8	)
Total Operating Revenues	$	180.4		$	313.9

Schedule of Gross Receipts Taxes

The following table presents gross receipts taxes recorded as revenues:

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Spire	$	43.5	$	43.6	$	69.4	$	66.7
Spire Missouri		32.1		30.6		50.6		46.8
Spire Alabama		9.6		11.6		15.9		17.2