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Commitments and Contingencies (Details) | 6 Months Ended
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Jun. 30, 2021 USD ($)
Other Commitments [Line Items] |
Purchase orders outstanding | $ 14,200,000
Purchase orders outstanding, term | 6 months
Performance Guarantee |
Other Commitments [Line Items] |
Bonds outstanding | $ 1,300,000,000
Estimated remaining costs for bonded projects | 605,400,000
Contingencies Excluding Wildfire and Health Insurance |
Other Commitments [Line Items] |
Insurance coverage deductible | 1,000,000.0
Wildfire |
Other Commitments [Line Items] |
Insurance coverage deductible | 2,000,000.0
Health Insurance |
Other Commitments [Line Items] |
Insurance coverage deductible | $ 200,000

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