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Revenue Recognition and Related Balance Sheet Accounts (Tables) | 12 Months Ended
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Dec. 31, 2022
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):
|  | Year Ended December 31,
|  | 2022 |  | 2021 |  | 2020
By contract type: |  |  |  |  |  |  |  |  |  |  |  |
Fixed price contracts |  | $ | 7,282,537 |  |  | 42.7 | % |  | $ | 4,849,038 |  |  | 37.4 | % |  | $ | 4,380,539 |  |  | 39.1 | %
Unit-price contracts |  | 5,927,335 |  |  | 34.7 | % |  | 5,029,100 |  |  | 38.7 | % |  | 4,172,363 |  |  | 37.2 | %
Cost-plus contracts |  | 3,864,031 |  |  | 22.6 | % |  | 3,102,075 |  |  | 23.9 | % |  | 2,649,770 |  |  | 23.7 | %
Total revenues |  | $ | 17,073,903 |  |  | 100.0 | % |  | $ | 12,980,213 |  |  | 100.0 | % |  | $ | 11,202,672 |  |  | 100.0 | %
|  | Year Ended December 31,
|  | 2022 |  | 2021 |  | 2020
By primary geographic location: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 14,390,237 |  |  | 84.3 | % |  | $ | 11,068,493 |  |  | 85.3 | % |  | $ | 9,618,951 |  |  | 85.8 | %
Canada |  | 2,020,853 |  |  | 11.8 | % |  | 1,557,117 |  |  | 12.0 | % |  | 1,252,365 |  |  | 11.2 | %
Australia |  | 428,321 |  |  | 2.5 | % |  | 221,038 |  |  | 1.7 | % |  | 200,664 |  |  | 1.8 | %
Others |  | 234,492 |  |  | 1.4 | % |  | 133,565 |  |  | 1.0 | % |  | 130,692 |  |  | 1.2 | %
Total revenues |  | $ | 17,073,903 |  |  | 100.0 | % |  | $ | 12,980,213 |  |  | 100.0 | % |  | $ | 11,202,672 |  |  | 100.0 | %
Contract Assets and Liabilities | Contract assets and liabilities consisted of the following (in thousands):
|  | December 31, 2022 |  | December 31, 2021 |  | December 31, 2020
Contract assets |  | $ | 1,080,206 |  |  | $ | 803,453 |  |  | $ | 453,832 |
Contract liabilities |  | $ | 1,141,518 |  |  | $ | 802,872 |  |  | $ | 528,864 |
Composition of the Allowance for Credit Losses | Activity in Quanta’s allowance for credit losses consisted of the following (in thousands):
|  | Year Ended December 31,
|  | 2022 |  | 2021 |  | 2020
Balance at beginning of year |  | $ | 49,749 |  |  | $ | 16,546 |  |  | $ | 9,398 |
Cumulative effect of adoption of new credit loss standard |  | — |  |  | — |  |  | 5,067 |
Increase in provision for credit losses |  | 350 |  |  | 34,890 |  |  | 3,656 |
Write-offs charged against the allowance net of recoveries of amounts previously written off |  | (34,455) |  |  | (1,687) |  |  | (1,575) |
Balance at end of year |  | $ | 15,644 |  |  | $ | 49,749 |  |  | $ | 16,546 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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