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Revenue Recognition and Related Balance Sheet Accounts (Tables) | 9 Months Ended
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Sep. 30, 2023
Revenue from Contract with Customer [Abstract] |
Revenue Disaggregated by Geographic Location and Contract Type | The following tables present Quanta’s revenue disaggregated by contract type and by geographic location, as determined by the job location (in thousands):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
By contract type: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed price contracts |  | $ | 2,718,921 |  |  | 48.4 | % |  | $ | 1,875,855 |  |  | 42.1 | % |  | 6,950,697 |  |  | 46.0 | % |  | $ | 5,370,646 |  |  | 42.4 | %
Unit-price contracts |  | 1,803,764 |  |  | 32.1 |  |  | 1,597,640 |  |  | 35.8 |  |  | 4,998,787 |  |  | 33.1 |  |  | $ | 4,407,147 |  |  | 34.8 |
Cost-plus contracts |  | 1,098,137 |  |  | 19.5 |  |  | 986,262 |  |  | 22.1 |  |  | 3,148,774 |  |  | 20.9 |  |  | 2,879,492 |  |  | 22.8 |
Total revenues |  | $ | 5,620,822 |  |  | 100.0 | % |  | $ | 4,459,757 |  |  | 100.0 | % |  | $ | 15,098,258 |  |  | 100.0 | % |  | $ | 12,657,285 |  |  | 100.0 | %
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
By primary geographic location:
United States |  | $ | 4,816,825 |  |  | 85.8 | % |  | $ | 3,760,019 |  |  | 84.3 | % |  | $ | 12,766,092 |  |  | 84.6 | % |  | $ | 10,751,325 |  |  | 84.9 | %
Canada |  | 574,536 |  |  | 10.2 |  |  | 512,803 |  |  | 11.5 |  |  | 1,640,154 |  |  | 10.9 |  |  | 1,503,174 |  |  | 11.9 |
Australia |  | 148,499 |  |  | 2.6 |  |  | 130,851 |  |  | 2.9 |  |  | 459,901 |  |  | 3.0 |  |  | 275,421 |  |  | 2.2 |
Others |  | 80,962 |  |  | 1.4 |  |  | 56,084 |  |  | 1.3 |  |  | 232,111 |  |  | 1.5 |  |  | 127,365 |  |  | 1.0 |
Total revenues |  | $ | 5,620,822 |  |  | 100.0 | % |  | $ | 4,459,757 |  |  | 100.0 | % |  | $ | 15,098,258 |  |  | 100.0 | % |  | $ | 12,657,285 |  |  | 100.0 | %
Contract Assets and Liabilities | Contract assets and liabilities consisted of the following (in thousands):
|  | September 30, 2023 |  | December 31, 2022
Contract assets |  | $ | 1,584,623 |  |  | $ | 1,080,206 |
Contract liabilities |  | $ | 1,100,928 |  |  | $ | 1,141,518 |
Composition of the Allowance for Credit Losses | Activity in Quanta’s allowance for credit losses consisted of the following (in thousands):
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
Balance at beginning of period |  | $ | 13,908 |  |  | $ | 49,707 |  |  | $ | 15,644 |  |  | $ | 49,749 |
Increase in provision for credit losses |  | 181 |  |  | 2,343 |  |  | 5,428 |  |  | 2,048 |
Write-offs charged against the allowance net of recoveries of amounts previously written off |  | (146) |  |  | (33,030) |  |  | (7,129) |  |  | (32,777) |
Balance at end of period |  | $ | 13,943 |  |  | $ | 19,020 |  |  | $ | 13,943 |  |  | $ | 19,020 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-5 + Details
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