XML 93 R80.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Subsequent Event (Detail) - Subsequent Event - Amendment to Fourth Amendment | Oct. 31, 2017 USD ($)
--- | ---
Subsequent Event [Line Items] |
Senior secured revolving credit facility | $ 1,810,000,000
Excess of Eurocurrency Rate Applicable to Domestic Borrowings Only | Minimum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 1.125%
Excess of Eurocurrency Rate Applicable to Domestic Borrowings Only | Maximum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 2.00%
Excess of Base Rate Domestic Borrowings Only | Minimum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 0.125%
Excess of Base Rate Domestic Borrowings Only | Maximum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 1.00%
Excess of Euro Currency Rate of Credit Agreement for Foreign Borrowings | Minimum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 1.125%
Excess of Euro Currency Rate of Credit Agreement for Foreign Borrowings | Maximum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 2.00%
Standby Letters of Credit | Minimum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 1.125%
Standby Letters of Credit | Maximum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 2.00%
Performance Letters of Credit | Minimum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 0.675%
Performance Letters of Credit | Maximum |
Subsequent Event [Line Items] |
Debt instrument basis spread on variable rate | 1.15%

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=pwr_SecondAmendmentToFourthAmendmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=pwr_ExcessOfEurocurrencyRateApplicableToDomesticBorrowingsOnlyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=pwr_ExcessOfBaseRateDomesticBorrowingsOnlyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=pwr_ExcessOfEuroCurrencyRateOfCreditAgreementForForeignBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=pwr_PerformanceLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |