XML 23 R36.htm IDEA: XBRL DOCUMENT
v3.20.1

Summary of Significant Accounting Policies - Revenue Disaggregated by Geographic Location and Contract Type (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 2,764,095 | $ 2,807,259
Percentage Of Total Revenues | 100.00% | 100.00%
Unit-price contracts |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 974,651 | $ 895,044
Percentage Of Total Revenues | 35.30% | 31.90%
Cost-plus contracts |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 688,084 | $ 958,355
Percentage Of Total Revenues | 24.90% | 34.10%
Fixed price contracts |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 1,101,360 | $ 953,860
Percentage Of Total Revenues | 39.80% | 34.00%
United States |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 2,268,086 | $ 2,200,615
Percentage Of Total Revenues | 82.10% | 78.40%
Canada |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 384,225 | $ 485,430
Percentage Of Total Revenues | 13.90% | 17.30%
Australia |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 51,050 | $ 41,324
Percentage Of Total Revenues | 1.80% | 1.50%
Latin America and Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 60,734 | $ 79,890
Percentage Of Total Revenues | 2.20% | 2.80%

X
- Definition Percentage Of Total Revenues + References No definition available. + Details
Name: | pwr_PercentageOfTotalRevenues
Namespace Prefix: | pwr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=pwr_UnitPriceContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=us-gaap_TimeAndMaterialsContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=us-gaap_FixedPriceContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_AU
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=pwr_LatinAmericaandOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |