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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2023

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 six months ended June 30, 2023 and 2022 is as follows (RSUs in thousands):

			2023												2022
			RSUs						Weighted Average Grant Date Fair Value (Per Unit)						RSUs						Weighted Average Grant Date Fair Value (Per Unit)
Unvested at January 1			3,263						$78.74						3,880						$61.64
Granted			635						$158.93						801						$110.73
Vested			(1,159)						$67.23						(1,200)						$48.96
Forfeited			(101)						$111.48						(98)						$77.41
Unvested at June 30			2,638						$102.44						3,383						$77.47

A summary of the activity for PSUs to be settled in common stock for the six months ended June 30, 2023 and 2022 is as follows (PSUs in thousands):

			2023												2022
			PSUs						Weighted Average Grant Date Fair Value (Per Unit)						PSUs						Weighted Average Grant Date Fair Value (Per Unit)
Unvested at January 1			733						$65.39						931						$47.27
Granted			177						$174.50						148						$119.04
Vested			(413)						$35.12						(334)						$40.15
Forfeited			(3)						$90.36						(17)						$58.79
Unvested at June 30			494						$129.66						728						$64.83

Grant Date Fair Value for Awards of Performance Units Inputs

The Monte Carlo simulation valuation methodology applied the following key inputs:

						2023						2022
Valuation date price based on March 9, 2023 and March 2, 2022 closing stock prices of Quanta common stock						$160.55						$110.24
Historical volatility						35		%				39		%
Risk-free interest rate						4.62		%				1.64		%
Term in years						2.81						2.83

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Schedule Of Share Based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions [Table Text Block]

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- Definition

Tabular disclosure of the changes in outstanding nonvested shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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