XML 56 R37.htm IDEA: XBRL DOCUMENT
v3.20.2

Derivative Instruments and Hedging Activities (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2020
Derivative [Line Items] |
Derivative Instruments and Hedging Activities | Open NYMEX and ICE natural gas futures and swap positions at September 30, 2020 and 2019 were as follows:
|  | September 30, 2020 |  |  | September 30, 2019 |
Gas Marketing |  | Notional (MMBtu millions) |  |  | Maximum Term (Months) |  |  | Notional (MMBtu millions) |  |  | Maximum Term (Months) |
Natural gas futures purchased |  |  | 22.9 |  |  |  | 41 |  |  |  | 29.1 |  |  |  | 36 |
Natural gas options purchased, net |  |  | 4.8 |  |  |  | 6 |  |  |  | 6.9 |  |  |  | 12 |
Natural gas basis swaps purchased |  |  | 6.2 |  |  |  | 24 |  |  |  | 90.1 |  |  |  | 36 |
Gas Utility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas futures purchased |  |  | 25.9 |  |  |  | 12 |  |  |  | 69.0 |  |  |  | 12 |
Effect of Derivative Instruments on Statements of Consolidated Income and Statements of Consolidated Comprehensive Income |
Effect of Derivative Instruments on the Consolidated Statements of Income and Comprehensive Income |
|  | Location of Gain (Loss) |  |  |  |  |  |  |  |  |  |  |  |
|  | Recorded in Income |  | 2020 |  |  | 2019 |  |  | 2018 |
Derivatives in Cash Flow Hedging Relationships |  |  |  |  |  |  |  |  |  |  |  |
Effective portion of gain (loss) recognized in OCI on derivatives: |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps |  |  |  |  | (8.9 | ) |  |  | (46.4 | ) |  |  | 3.9 |
Total |  |  |  | $ | (8.9 | ) |  | $ | (46.4 | ) |  | $ | 3.9 |
Effective portion of gain (loss) reclassified from AOCI to income: |  |  |  |  |  |  |  |  |  |  |  |
Gasoline and heating oil contracts |  | Gas Utility Other Operating Expenses |  |  | — |  |  |  | — |  |  |  | 0.1 |
Interest rate swaps |  | Interest Expense |  |  | (3.2 | ) |  |  | 1.3 |  |  |  | 1.4 |
Total |  |  |  | $ | (3.2 | ) |  | $ | 1.3 |  |  | $ | 1.5 |
Derivatives Not Designated as Hedging Instruments* |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) recognized in income on derivatives: |  |  |  |  |  |  |  |  |  |  |  |
Natural gas commodity contracts |  | Gas Marketing Operating Revenues |  | $ | 9.2 |  |  | $ | 2.5 |  |  | $ | 10.2 |
|  | Gas Marketing Operating Expenses |  |  | — |  |  |  | (8.4 | ) |  |  | (8.1 | )
NYMEX / ICE natural gas contracts |  | Gas Marketing Operating Revenues |  |  | (11.8 | ) |  |  | — |  |  |  | — |
Total |  |  |  | $ | (2.6 | ) |  | $ | (5.9 | ) |  | $ | 2.1 |
* | Gains and losses on Spire Missouri’s natural gas derivative instruments, which are not designated as hedging instruments for financial reporting purposes, are deferred pursuant to the Missouri Utilities’ PGA clauses and initially recorded as regulatory assets or regulatory liabilities. These gains and losses are excluded from the table above because they have no direct impact on the statements of income. Such amounts are recognized in the statements of income as a component of Regulated Gas Distribution Natural and Propane Gas operating expenses when they are recovered through the PGA clause and reflected in customer billings.
Fair Value of Derivative Instruments in the Consolidated Balance Sheet |
Fair Value of Derivative Instruments in the Consolidated Balance Sheets |
|  | Derivative Assets* |  |  | Derivative Liabilities* |
September 30, 2020 |  | Balance Sheet Location |  | Fair Value |  |  | Balance Sheet Location |  | Fair Value |
Derivatives designated as hedging instruments |  |  |  |  |  |  |  |  |  |
Other: Interest rate swaps |  | Derivative Instrument Liability |  | $ | — |  |  | Derivative Instrument Liability |  | $ | 54.2 |
Subtotal |  |  |  |  | — |  |  |  |  |  | 54.2 |
Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |
Gas Utility: |  |  |  |  |  |  |  |  |  |  |  |
Natural gas contracts |  | Accounts Receivable – Other |  |  | 6.3 |  |  | Accounts Receivable – Other |  |  | 0.9 |
Gasoline and heating oil contracts |  | Derivative Instrument Assets |  |  | 0.3 |  |  |  |  |  | — |
Gas Marketing: |  |  |  |  |  |  |  |  |  |  |  |
NYMEX / ICE natural gas contracts |  | Derivative Instrument Assets |  |  | 20.5 |  |  | Derivative Instrument Assets |  |  | 21.3 |
|  | Deferred Charges – Other |  |  | 7.2 |  |  | Deferred Charges – Other |  |  | 0.8 |
Natural gas commodity |  | Derivative Instrument Assets |  |  | 13.5 |  |  | Derivative Instrument Assets |  |  | — |
|  | Deferred Charges – Other |  |  | 1.4 |  |  | Deferred Charges – Other |  |  | — |
|  | Current Liabilities – Other |  |  | — |  |  | Current Liabilities – Other |  |  | 16.8 |
|  | Deferred Credits – Other |  |  | — |  |  | Deferred Credits – Other |  |  | 5.5 |
Subtotal |  |  |  |  | 49.2 |  |  |  |  |  | 45.3 |
Total derivatives |  |  |  | $ | 49.2 |  |  |  |  | $ | 99.5 |
September 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |
Derivatives designated as hedging instruments |  |  |  |  |  |  |  |  |  |
Other: Interest rate swaps |  | Derivative Instrument Liability |  | $ | — |  |  | Derivative Instrument Liability |  | $ | 43.4 |
Subtotal |  |  |  |  | — |  |  |  |  |  | 43.4 |
Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |
Gas Utility: |  |  |  |  |  |  |  |  |  |  |  |
Natural gas contracts |  | Accounts Receivable – Other |  |  | — |  |  | Accounts Receivable – Other |  |  | 12.3 |
Gas Marketing: |  |  |  |  |  |  |  |  |  |  |  |
NYMEX / ICE natural gas contracts |  | Derivative Instrument Assets |  |  | 7.0 |  |  | Derivative Instrument Assets |  |  | 7.3 |
|  | Deferred Charges – Other |  |  | 0.5 |  |  | Deferred Charges – Other |  |  | 1.6 |
Natural gas commodity |  | Derivative Instrument Assets |  |  | 10.4 |  |  | Derivative Instrument Assets |  |  | 0.9 |
|  | Deferred Charges – Other |  |  | 4.8 |  |  | Deferred Charges – Other |  |  | — |
|  | Current Liabilities – Other |  |  | 1.4 |  |  | Current Liabilities – Other |  |  | 11.5 |
|  | Deferred Credits – Other |  |  | 0.1 |  |  | Deferred Credits – Other |  |  | 1.5 |
Subtotal |  |  |  |  | 24.2 |  |  |  |  |  | 35.1 |
Total derivatives |  |  |  | $ | 24.2 |  |  |  |  | $ | 78.5 |
* | The fair values of Derivative Assets and Derivative Liabilities exclude the fair value of cash margin receivables or payables with counterparties subject to netting arrangements. Fair value amounts of derivative contracts (including the fair value amounts of cash margin receivables and payables) for which there is a legal right to set off are presented net on the balance sheets. As such, the gross balances presented in the table above are not indicative of the Company’s net economic exposure. Refer to Note 9, Fair Value Measurements, for information on the valuation of derivative instruments.
Derivative Instruments Reconciliation | Following is a reconciliation of the amounts in the tables above to the amounts presented in the Consolidated Balance Sheets:
|  | 2020 |  |  | 2019 |
Fair value of derivative assets presented above |  | $ | 49.2 |  |  | $ | 24.2 |
Fair value of cash margin receivable offset with derivatives |  |  | (9.0 | ) |  |  | 14.3 |
Netting of assets and liabilities with the same counterparty |  |  | (23.0 | ) |  |  | (23.7 | )
Total |  | $ | 17.2 |  |  | $ | 14.8 |
Derivative Instrument Assets, per Consolidated Balance Sheets: |  |  |  |  |  |  |  |
Current Assets – Other |  | $ | 15.8 |  |  | $ | 4.2 |
Deferred Charges and Other Assets – Other |  |  | 1.4 |  |  |  | 10.6 |
Total |  | $ | 17.2 |  |  | $ | 14.8 |
Fair value of derivative liabilities presented above |  | $ | 99.5 |  |  | $ | 78.5 |
Netting of assets and liabilities with the same counterparty |  |  | (23.0 | ) |  |  | (23.7 | )
Total |  | $ | 76.5 |  |  | $ | 54.8 |
Derivative Instrument Liabilities, per Consolidated Balance Sheets: |  |  |  |  |  |  |  |
Current Liabilities – Other |  | $ | 71.0 |  |  | $ | 50.0 |
Deferred Credits and Other Liabilities – Other |  |  | 5.5 |  |  |  | 4.8 |
Total |  | $ | 76.5 |  |  | $ | 54.8 |
Spire Missouri |
Derivative [Line Items] |
Derivative Instruments and Hedging Activities | Spire Missouri’s derivative instruments consist primarily of NYMEX positions. The NYMEX is the primary national commodities exchange on which natural gas derivatives are traded. Open NYMEX natural gas futures positions at September 30, 2020 were as follows:
|  | September 30, 2020 |
|  | Notional (MMBtu millions) |  |  | Maximum Term (Months) |
Natural gas futures purchased |  |  | 25.9 |  |  |  | 12 |
Effect of Derivative Instruments on Statements of Consolidated Income and Statements of Consolidated Comprehensive Income |
Effect of Derivative Instruments on the Statements of Comprehensive Income |
|  | Location of Gain (Loss) |  |  |  |  |  |  |  |  |  |  |  |
|  | Recorded in Income |  | 2020 |  |  | 2019 |  |  | 2018 |
Derivatives in Cash Flow Hedging Relationships |  |  |  |  |  |  |  |  |  |  |  |
Effective portion of gain (loss) recognized in OCI on derivatives: |  |  |  |  |  |  |  |  |  |  |  |
Gasoline and heating oil contracts |  |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Effective portion of gain (loss) reclassified from AOCI to income: |  |  |  |  |  |  |  |  |  |  |  |
Gasoline and heating oil contracts |  | Gas Utility Other Operating Expenses |  | $ | — |  |  | $ | — |  |  | $ | 0.1 |
* | Gains and losses on Spire Missouri’s natural gas derivative instruments, which are not designated as hedging instruments for financial reporting purposes, are deferred pursuant to the Spire Missouri’s PGA clauses and initially recorded as regulatory assets or regulatory liabilities. These gains and losses are excluded from the table above because they have no direct impact on the Statements of Income. Such amounts are recognized in the Statements of Income as a component of Regulated Gas Distribution Natural and Propane Gas operating expenses when they are recovered through the PGA clause and reflected in customer billings.
Fair Value of Derivative Instruments in the Consolidated Balance Sheet |
Fair Value of Derivative Instruments in the Balance Sheets |
|  | Derivative Assets* |  |  | Derivative Liabilities* |
September 30, 2020 |  | Balance Sheet Location |  | Fair Value |  |  | Balance Sheet Location |  | Fair Value |
Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |
Natural gas contracts |  | Accounts Receivable – Other |  | $ | 6.3 |  |  | Accounts Receivable – Other |  | $ | 0.9 |
Gasoline and heating oil contracts |  | Derivative Instrument Assets |  |  | 0.3 |  |  |  |  |  | — |
Total derivatives |  |  |  | $ | 6.6 |  |  |  |  | $ | 0.9 |
September 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |
Derivatives not designated as hedging instruments |  |  |  |  |  |  |  |  |  |
Natural gas contracts |  | Accounts Receivable – Other |  | $ | — |  |  | Accounts Receivable – Other |  | $ | 12.3 |
* | The fair values of Derivative Assets and Derivative Liabilities exclude the fair value of cash margin receivables or payables with counterparties subject to netting arrangements. Fair value amounts of derivative contracts (including the fair value amounts of cash margin receivables and payables) for which there is a legal right to set off are presented net on the Balance Sheets. As such, the gross balances presented in the table above are not indicative of Spire Missouri’s net economic exposure. Refer to Note 9, Fair Value Measurements, for information on the valuation of derivative instruments.
Derivative Instruments Reconciliation | Following is a reconciliation of the amounts in the tables above to the amounts presented in Spire Missouri’s Balance Sheets:
|  | 2020 |  |  | 2019 |
Fair value of derivative assets presented above |  | $ | 6.6 |  |  | $ | — |
Fair value of cash margin (payable) receivable offset with derivatives |  |  | (5.7 | ) |  |  | 12.3 |
Netting of assets and liabilities with the same counterparty |  |  | (0.9 | ) |  |  | (12.3 | )
Total |  | $ | — |  |  | $ | — |
Fair value of derivative liabilities presented above |  | $ | 0.9 |  |  | $ | 12.3 |
Netting of assets and liabilities with the same counterparty |  |  | (0.9 | ) |  |  | (12.3 | )
Total |  | $ | — |  |  | $ | — |

X
- Definition Reconciles the fair value of derivative instrument assets and liabilities to the carrying amount on the balance sheet. + References No definition available. + Details
Name: | sr_DerivativeInstrumentReconciliationTableTextBlock
Namespace Prefix: | sr_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41638-113959 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41641-113959 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579240-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=sr_SpireMissouriMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |