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Financing (Tables)
3 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Schedule of Short-Term Debt

 

 

Spire
(Parent Only)

 

 

Spire
Missouri

 

 

Spire
Alabama

 

 

Spire

 

 

 

CP

 

 

Term

 

 

Spire

 

 

Spire

 

 

Consol-

 

 

 

Program

 

 

Loan

 

 

Note

 

 

Note

 

 

idated

 

Three Months Ended December 31, 2024

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Highest borrowings outstanding

 

$

1,198.0

 

 

$

 

 

$

599.0

 

 

$

73.2

 

 

$

1,198.0

 

Lowest borrowings outstanding

 

 

943.5

 

 

 

 

 

 

487.8

 

 

 

43.0

 

 

 

943.5

 

Weighted average borrowings

 

 

1,087.8

 

 

 

 

 

 

545.3

 

 

 

58.0

 

 

 

1,087.8

 

Weighted average interest rate

 

 

4.6

%

 

 

0.0

%

 

 

4.9

%

 

 

4.9

%

 

 

4.6

%

As of December 31, 2024

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Borrowings outstanding

 

$

1,158.0

 

 

$

 

 

$

580.9

 

 

$

67.0

 

 

$

1,158.0

 

Weighted average interest rate

 

 

4.4

%

 

 

0.0

%

 

 

4.8

%

 

 

4.8

%

 

 

4.4

%

As of September 30, 2024

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Borrowings outstanding

 

$

947.0

 

 

$

 

 

$

495.3

 

 

$

48.4

 

 

$

947.0

 

Weighted average interest rate

 

 

5.2

%

 

 

0.0

%

 

 

5.2

%

 

 

5.2

%

 

 

5.2

%

As of December 31, 2023

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Borrowings outstanding

 

$

1,047.5

 

 

$

 

 

$

633.3

 

 

$

128.5

 

 

$

1,047.5

 

Weighted average interest rate

 

 

5.7

%

 

 

0.0

%

 

 

5.7

%

 

 

5.7

%

 

 

5.7

%

Summary of Capitalized Interest

 

 

Three Months Ended
December 31,

 

 

 

2024

 

 

2023

 

Spire

 

$

6.3

 

 

$

3.8

 

Spire Missouri

 

 

1.2

 

 

 

1.2

 

Spire Alabama

 

 

0.8

 

 

 

0.4