Debt Covenant, Debt To Capital Percentage

No definition available.

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- Definition

Line Of Credit Facility, Number Of Banks In Agreement

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Period Type:	instant

- Definition

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

+ References

+ Details

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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.

+ Details

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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Balance Type:	credit
Period Type:	instant

- 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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Balance Type:	credit
Period Type:	instant

- Definition

Indebtedness divided by net capital.

+ References

No definition available.

+ Details

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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- Details

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FINANCING ARRANGEMENTS AND LONG-TERM DEBT (Details)	Dec. 21, 2016 USD ($)	Dec. 14, 2016 USD ($) bank	Jun. 30, 2018 USD ($)	Jan. 12, 2018 USD ($)	Dec. 01, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)
Line of Credit Facility [Line Items]
Debt covenant, short-term debt to capital requirement, maximum		70.00%
Notes outstanding			$ 191,000,000			$ 477,300,000	$ 450,700,000
Commercial Paper Notes
Line of Credit Facility [Line Items]
Face amount	$ 975,000,000.0
Debt term	365 days
Spire Missouri
Line of Credit Facility [Line Items]
Notes outstanding			128,600,000
Spire Alabama
Line of Credit Facility [Line Items]
Notes outstanding			$ 69,600,000
Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Number of banks in loan agreement \| bank		11
Maximum borrowing capacity		$ 975,000,000.0
Line of Credit \| Revolving Credit Facility \| Spire Missouri
Line of Credit Facility [Line Items]
Maximum borrowing capacity		475,000,000.0
Ratio of short-term debt to total capital			0.46
Line of Credit \| Revolving Credit Facility \| Spire Alabama
Line of Credit Facility [Line Items]
Maximum borrowing capacity		200,000,000.0
Ratio of short-term debt to total capital			0.32
Line of Credit \| Revolving Credit Facility \| Spire
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 300,000,000.0
Ratio of short-term debt to total capital			0.51
Credit facility borrowings			$ 0			$ 0	$ 0
Senior Notes \| Spire Alabama \| Series 2017A senior notes due 2058
Line of Credit Facility [Line Items]
Face amount					$ 30,000,000
Stated interest rate					4.02%
Senior Notes \| Spire Alabama \| Series 2017B senior notes due 2048
Line of Credit Facility [Line Items]
Face amount				$ 45,000,000
Stated interest rate				3.92%