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

Long-term Incentive Plans (Details Textuals)

v2.3.0.11

Long-term Incentive Plans (Details Textuals) (USD $)	3 Months Ended		6 Months Ended			6 Months Ended	3 Months Ended		6 Months Ended
Long-term Incentive Plans (Details Textuals) (USD $)	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	May 18, 2011	Jun. 30, 2011 Restricted Stock [Member]	Jun. 30, 2011 Restricted Stock Units [Member]	Jun. 30, 2010 Restricted Stock Units [Member]	Jun. 30, 2011 Restricted Stock Units [Member]	Jun. 30, 2010 Restricted Stock Units [Member]	Dec. 31, 2010 Restricted Stock Units [Member]
Unrecognized compensation cost, related to unvested restricted stock, total						$ 29,000,000
Expected weighted average period to recognize compensation cost on restricted stock (in years)						2.0
Vesting period for Restricted Stock Units									3 years
Compensation expense related to Restricted Stock Units							200,000	200,000	500,000	200,000
Liabilities under Restricted Stock Units							600,000		600,000		200,000
Long Term Incentive Plans (Textuals) [Abstract]
Common Stock available for awards pursuant to the 2011 plan	11,750,000		11,750,000
Number of additional shares of common stock available pursuant to the terms of the 2007 Plan					178,815
Minimum vested period, restricted stock	3 years	3 years	3 years	3 years
Maximum vested period, restricted stock	4 years	4 years	4 years	4 years
Grant of restricted stocks under the Plans	67,198	53,919	900,000	1,100,000
Weighted average grant price	$ 19.90	$ 20.86	$ 22.16	$ 19.20
Restricted stock, vested	55,128	53,539	900,000	700,000
Fair value of additional restricted stock, vested	$ 1,100,000	$ 1,100,000	$ 20,000,000	$ 13,000,000

- Definition

Additional shares of common stock available to the plan.

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- Definition

Common stock available for awards pursuant to the plan.

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- Definition

Compensation expense related to Restricted Stock Units.

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- Definition

Liabilities under Restricted Stock Units.

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- Definition

Long Term Incentive Plans.

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- Definition

The maximum vesting term over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition.

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- Definition

The minimum vesting term over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition.

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- Definition

As of the latest balance-sheet date presented, the total compensation cost related to outstanding, nonvested share-based compensation awards not yet recognized (will be charged against earnings as services are performed or other vesting criteria are met).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph h

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- Definition

The weighted average period over which unrecognized share-based compensation costs are expected to be reported.

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- Definition

Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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- Definition

The number of shares issuable under a share-based award plan pertaining to grants made during the period on other than stock option plans (for example, phantom stock plan, stock appreciation rights plan, performance target plan).

+ References

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- Definition

The weighted average fair value at grant for nonvested share-based awards issued during the period on other than stock option plans (for example, phantom stock plan, stock appreciation rights plan, performance target plan).

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- Definition

The decrease in the number of shares potentially issuable under a share-based award plan pertaining to awards for which the grantee has gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares, other instruments, or cash in accordance with the terms of the arrangement.

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- Definition

The total fair value of share-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares, other instruments, or cash in accordance with the terms of the arrangement.

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