XML 64 R51.htm IDEA: XBRL DOCUMENT v3.3.1.900

Acquisitions - Unaudited Supplemental Proforma Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Combinations [Abstract]
Revenues	$ 7,635,932	$ 8,476,584	$ 7,629,310
Gross profit	939,452	1,248,827	1,185,691
Selling, general and administrative expenses	600,057	745,321	563,877
Amortization of intangible assets	36,479	47,777	50,755
Net income from continuing operations	135,467	303,772	451,399
Net income from continuing operations attributable to common stock	$ 124,550	$ 285,404	$ 432,011
Earnings per share from continuing operations attributable to common stock - basic and diluted	$ 0.64	$ 1.28	$ 1.95

X

- Definition

The pro forma amortization of intangible assets for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

No definition available.

+ Details

Name:	pwr_BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets
Namespace Prefix:	pwr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The pro forma gross profit for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

No definition available.

+ Details

Name:	pwr_BusinessAcquisitionsProFormaGrossProfit
Namespace Prefix:	pwr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The pro forma net income(loss) attributable to common stock for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

No definition available.

+ Details

Name:	pwr_BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStock
Namespace Prefix:	pwr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The pro forma selling, general and administrative expenses for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

No definition available.

+ Details

Name:	pwr_BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses
Namespace Prefix:	pwr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionsProFormaRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_BusinessCombinationsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration