Share-Based Compensation (Tables) |
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Mar. 31, 2021 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Summary of Activity Under Share-Based Compensation Plans |
The following table summarizes the activity for stock appreciation rights, or SARs, under all share-based compensation plans for the three months ended March 31, 2021:
(1) The intrinsic value is the amount by which the current market value of the underlying stock exceeds the exercise price of the SARs. (2) Includes less than 0.1 million market condition SARs as of both March 31, 2021 and December 31, 2020. (3) Includes 0.8 million and 1.1 million performance condition SARs as of March 31, 2021 and December 31, 2020, respectively, which represents the maximum amount that can vest. (4) Includes 0.3 million performance condition SARs. (5) Includes less than 0.1 million market condition and 0.8 million performance condition SARs. There were no SARs granted during the three months ended March 31, 2021 and 2020. The total intrinsic value of SARs exercised during the three months ended March 31, 2021 and 2020 was $13.8 million and $1.6 million, respectively. The following table summarizes the activities for stock units under all share-based compensation plans for the three months ended March 31, 2021:
(1) Includes 1,141,028 and 712,596 performance-based stock unit awards as of March 31, 2021 and December 31, 2020, respectively, which represents the maximum amount that can vest. (2) Includes 428,432 performance-based stock unit awards. (3) Includes 753,826 performance-based stock unit awards. |