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Commitments and Contingencies (Details)
 3 Months Ended
Mar. 31, 2022
USD ($)
Other Commitments [Line Items]  
Purchase orders outstanding $ 17,200,000
Purchase orders outstanding, term 9 months
Performance Guarantee  
Other Commitments [Line Items]  
Bonds outstanding $ 1,460,000,000
Estimated remaining costs for bonded projects 579,700,000
Contingencies Excluding Wildfire and Health Insurance  
Other Commitments [Line Items]  
Insurance coverage deductible 1,000,000
Wildfire  
Other Commitments [Line Items]  
Insurance coverage deductible 2,000,000
Contingency Umbrella Exposure Limit  
Other Commitments [Line Items]  
Insurance coverage deductible 3,800,000
Health Insurance  
Other Commitments [Line Items]  
Insurance coverage deductible $ 200,000