Quanta Services, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Debt Obligations (Details Textuals)

v2.3.0.11

Debt Obligations (Details Textuals) (USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended
	Aug. 31, 2011	Jun. 30, 2011	Aug. 02, 2011	May 14, 2010
Debt Obligations (Textuals) [Abstract]
Senior secured revolving credit facility		$ 475.0	$ 700.0
Maturity date of senior secured revolving credit facility	02-08-2016	19-09-2012
Letters of credit issued under credit facility (approximately)		187.5
Credit facility available for revolving loans or issuing new letters of credit		287.5
Interest Rate In excess of Eurodollar Rate minimum		0.875%
Interest Rate In excess of Eurodollar Rate maximum		1.75%
Interest Rate In excess of Base Rate minimum		0.00%
Interest Rate In excess of Base Rate maximum		0.75%
Letter of credit fee minimum		0.875%
Letter of credit fee maximum		1.75%
Commitment fee minimum		0.15%
Commitment fee maximum		0.35%
Base rate in excess of Federal Funds Rate		0.05%
Reduction in Quanta's maximum funded debt and maximum senior debt by all cash and cash equivalents in excess of amount		25.0
Cross default provisions with debt instruments exceeding this amount		15.0
Letters of credit outstanding amount issued under agreements other than credit facility		7.4
Annual interest rate of convertible subordinated notes				3.75%
Outstanding aggregate principal amount				$ 143.8
Redemption price as a percentage of the principle amount of the 3.75% convertible subordinated notes				101.607%

- Definition

Base rate in excess of Federal Funds Rate.

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- Definition

Commitment fee maximum.

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- Definition

Commitment fee minimum.

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- Definition

Cross-default provisions.

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Balance Type:	credit
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- Definition

Debt Obligations Textuals Abstract.

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- Definition

Interest rate in excess of Base Rate maximum.

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- Definition

Interest rate in excess of Base Rate minimum.

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Interest rate in excess of Eurodollar Rate maximum.

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- Definition

Interest Rate In Excess Of Eurodollar Rate Minimum.

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- Definition

Letter of credit fee maximum.

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- Definition

Letter of credit fee minimum.

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- Definition

Letters of credit outstanding amount issued under agreements other than credit facility.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Redemption price as a percentage of the principal amount of convertible subordinated notes.

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- Definition

Reduction in Quanta's maximum funded debt and maximum senior debt by all cash and cash equivalents in excess of amount.

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

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- Definition

Amount of outstanding principal due under the debt instrument at the end of the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number APB14-1
-Paragraph 31
-Subparagraph b

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Amount borrowed under the credit facility as of the balance-sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

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- Definition

Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
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- 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.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

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