Line Of Credit Facility, Number Of Banks In Agreement

No definition available.

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- Definition

Line of credit debt covenant required earnings before interest, taxes, depreciation, and amortization (EBITDA) minimum times interest expense

+ References

No definition available.

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- Definition

Short-term borrowings used to support lending to Utilities

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Period Type:	instant

- Definition

Indebtedness divided by net capital.

+ References

No definition available.

+ Details

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Financing Arrangements and Long-term Debt - Additional Information (Details)	1 Months Ended		3 Months Ended
	Dec. 31, 2018 USD ($)	Oct. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Jan. 15, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 14, 2016 bank
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity	$ 975,000,000		$ 975,000,000
Credit facility borrowings	0		0		$ 0	$ 0
Non-interest-bearing Note
Line of Credit Facility [Line Items]
Settlement of debt		$ 10,000,000
Term Loan
Line of Credit Facility [Line Items]
Long-term Debt	$ 100,000,000		100,000,000
Debt instrument, maturity date	Dec. 01, 2021
Liabilities \| Lender Concentration Risk
Line of Credit Facility [Line Items]
Line of credit facility, number of banks in agreement \| bank							11
Spire
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity	$ 300,000,000		300,000,000
Short-term borrowings used to support lending to Utilities	509,900,000		509,900,000
Spire Missouri
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity	475,000,000		475,000,000
Spire Alabama
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity	$ 200,000,000		$ 200,000,000
Spire Alabama \| Senior Notes \| Subsequent Event \| Private Placement \| Series 2019 A senior notes due 2049
Line of Credit Facility [Line Items]
Long-term debt				$ 90,000,000
Stated interest rate				4.64%
Line of Credit
Line of Credit Facility [Line Items]
Minimum required ratio of earnings before interest, taxes, depreciation, and amortization (EBITDA) times interest expense as required by the line of credit covenant	70.00%		70.00%
Debt to total capitalization ratio	0.55		0.55
Line of Credit \| Spire Missouri
Line of Credit Facility [Line Items]
Debt to total capitalization ratio	0.50		0.50
Line of Credit \| Spire Alabama
Line of Credit Facility [Line Items]
Debt to total capitalization ratio	0.38		0.38
Commercial Paper Notes
Line of Credit Facility [Line Items]
Long-term debt	$ 975,000,000		$ 975,000,000
Debt term			365 days