XML 45 R32.htm IDEA: XBRL DOCUMENT
v3.26.1

Stock-Based Compensation (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract] |
Schedule of RSUs and PSUs to be Settled in Common Stock Activity | A summary of the activity for RSUs to be settled in common stock for the three months ended March 31, 2026 and 2025 is as follows (RSUs in thousands):
| 2026 |  | 2025
| RSUs |  | Weighted Average Grant Date Fair Value (Per Unit) |  | RSUs |  | Weighted Average Grant Date Fair Value (Per Unit)
Unvested at January 1 | 1,754 |  |  | $226.39 |  | 2,024 |  |  | $173.32
Granted | 373 |  |  | $538.97 |  | 403 |  |  | $260.80
Vested | (455) |  |  | $209.15 |  | (502) |  |  | $163.20
Forfeited | (43) |  |  | $155.15 |  | (29) |  |  | $142.64
Unvested at March 31 | 1,629 |  |  | $304.56 |  | 1,896 |  |  | $195.02
A summary of the activity for PSUs to be settled in common stock for the three months ended March 31, 2026 and 2025 is as follows (PSUs in thousands):
| 2026 |  | 2025
| PSUs |  | Weighted Average Grant Date Fair Value (Per Unit) |  | PSUs |  | Weighted Average Grant Date Fair Value (Per Unit)
Unvested at January 1 | 348 |  |  | $224.15 |  | 425 |  |  | $177.69
Granted | 53 |  |  | $565.56 |  | 92 |  |  | $259.17
Vested | (149) |  |  | $174.50 |  | (165) |  |  | $123.88
Unvested at March 31 | 252 |  |  | $325.69 |  | 352 |  |  | $224.11
Grant Date Fair Value for Awards of Performance Units Inputs | The Monte Carlo simulation valuation methodology applied the following key inputs:
|  | 2026 |  | 2025
Valuation date price based on February 26, 2026 and February 27, 2025 closing stock prices of Quanta common stock |  | $565.05 |  | $259.26
Expected volatility (1) |  | 35 | % |  | 34 | %
Risk-free interest rate |  | 3.45 | % |  | 4.05 | %
Term in years |  | 2.85 |  | 2.84
(1) The expected volatility inputs for Quanta are based on historical volatility, which is based on Quanta’s dividend-adjusted closing prices over a period equivalent to the performance period.

X
- Definition Schedule Of Share Based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions [Table Text Block] + References No definition available. + Details
Name: | pwr_ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | pwr_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration