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Commitments and Contingent Liabilities - Amount of Commitment Expiration Per Period (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	$ 264,737
Less Than 1 Year
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	215,183
1-3 Years
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	49,554
3-5 Years
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Beyond 5 Years
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	40,331
Letters of Credit | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	3,126
Letters of Credit | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	43,457
Letters of Credit | Less Than 1 Year | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	40,331
Letters of Credit | Less Than 1 Year | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	3,126
Letters of Credit | Less Than 1 Year | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	43,457
Letters of Credit | 1-3 Years | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | 1-3 Years | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | 1-3 Years | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | 3-5 Years | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | 3-5 Years | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | 3-5 Years | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | Beyond 5 Years | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | Beyond 5 Years | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Letters of Credit | Beyond 5 Years | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	126,336
Surety Bond | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	8,800
Surety Bond | Employee-Related
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	2,250
Surety Bond | Environmental
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	11,174
Surety Bond | Financial Guarantees
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	72,720
Surety Bond | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	221,280
Surety Bond | Less Than 1 Year | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	126,336
Surety Bond | Less Than 1 Year | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	8,331
Surety Bond | Less Than 1 Year | Employee-Related
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Less Than 1 Year | Environmental
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	11,059
Surety Bond | Less Than 1 Year | Financial Guarantees
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	26,000
Surety Bond | Less Than 1 Year | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	171,726
Surety Bond | 1-3 Years | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | 1-3 Years | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	469
Surety Bond | 1-3 Years | Employee-Related
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	2,250
Surety Bond | 1-3 Years | Environmental
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	115
Surety Bond | 1-3 Years | Financial Guarantees
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	46,720
Surety Bond | 1-3 Years | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	49,554
Surety Bond | 3-5 Years | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | 3-5 Years | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | 3-5 Years | Employee-Related
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | 3-5 Years | Environmental
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | 3-5 Years | Financial Guarantees
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | 3-5 Years | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Beyond 5 Years | Firm Transportation
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Beyond 5 Years | Other
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Beyond 5 Years | Employee-Related
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Beyond 5 Years | Environmental
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Beyond 5 Years | Financial Guarantees
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	0
Surety Bond | Beyond 5 Years | Loss Contingencies by Secondary Nature of Contingency
Schedule of Costs Related to Purchase Obligations [Line Items]
Total Commitments	$ 0

X

- Definition

Schedule of Costs Related to Purchase Obligations [Line Items]

+ References

No definition available.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-4

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