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Commitments and Contingent Liabilities - Amount of Commitment Expiration Per Period (Details) $ in Thousands | Jun. 30, 2021 USD ($)
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Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | $ 294,067
Less Than 1 Year |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 292,512
1-3 Years |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 1,555
3-5 Years |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Beyond 5 Years |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | Firm Transportation |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 181,576
Letters of Credit | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 7,021
Letters of Credit | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 188,597
Letters of Credit | Less Than 1 Year | Firm Transportation |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 181,576
Letters of Credit | Less Than 1 Year | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 7,021
Letters of Credit | Less Than 1 Year | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 188,597
Letters of Credit | 1-3 Years | Firm Transportation |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | 1-3 Years | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | 1-3 Years | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | 3-5 Years | Firm Transportation |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | 3-5 Years | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | 3-5 Years | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | Beyond 5 Years | Firm Transportation |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | Beyond 5 Years | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Letters of Credit | Beyond 5 Years | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | Employee-Related |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 2,600
Surety Bond | Environmental |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 12,017
Surety Bond | Financial Guarantees |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 81,670
Surety Bond | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 9,183
Surety Bond | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 105,470
Surety Bond | Less Than 1 Year | Employee-Related |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 2,600
Surety Bond | Less Than 1 Year | Environmental |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 11,959
Surety Bond | Less Than 1 Year | Financial Guarantees |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 81,670
Surety Bond | Less Than 1 Year | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 7,686
Surety Bond | Less Than 1 Year | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 103,915
Surety Bond | 1-3 Years | Employee-Related |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | 1-3 Years | Environmental |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 58
Surety Bond | 1-3 Years | Financial Guarantees |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | 1-3 Years | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 1,497
Surety Bond | 1-3 Years | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 1,555
Surety Bond | 3-5 Years | Employee-Related |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | 3-5 Years | Environmental |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | 3-5 Years | Financial Guarantees |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | 3-5 Years | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | 3-5 Years | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | Beyond 5 Years | Employee-Related |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | Beyond 5 Years | Environmental |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | Beyond 5 Years | Financial Guarantees |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | Beyond 5 Years | Other |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | 0
Surety Bond | Beyond 5 Years | Loss Contingencies by Secondary Nature of Contingency |
Schedule of Costs Related to Purchase Obligations [Line Items] |
Guarantor obligations, maximum exposure | $ 0

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 + Details
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