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Share-Based Compensation - Summary of Activities Under Share-Based Compensation Plans (Detail) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Outstanding and nonvested as of December 31, 2020, Number of Shares | [1] | 4,538,000 |
Granted, Number of Shares | [2] | 3,794,000 |
Vested, Number of Shares | [3] | (1,463,000) |
Forfeited, Number of Shares | [3] | (751,000) |
Outstanding and nonvested as of December 31, 2021, Shares | [1] | 6,118,000 | 4,538,000
Number of Shares, Expected to vest as of December 31, 2021 |  | 5,666,000 |
Outstanding and nonvested as of December 31, 2020, Weighted Average Grant Date Fair Value Per Share | [1] | $ 33.14 |
Granted, Weighted Average Grant Date Fair Value Per Share | [2] | 13.81 |
Vested, Weighted Average Grant Date Fair Value Per Share | [3] | 35.78 |
Forfeited, Weighted Average Grant Date Fair Value Per Share | [3] | 31.15 |
Outstanding and nonvested as of December 31, 2021, Weighted Average Grant Date Fair Value Per Share | [1] | 20.76 | $ 33.14
Expected to vest as of December 31, 2020, Weighted Average Grant Date Fair Value Per Share |  | $ 19.94 |
SARs [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of Awards Outstanding, Beginning Balance | [4] | 3,074,000 |
Granted, Number of Awards |  | 1,814,000 |
Exercised, Number of Awards |  | (25,000) |
Forfeited, Number of Awards | [5] | (523,000) |
Number of Awards Outstanding, Ending Balance | [4] | 4,340,000 | 3,074,000
Number of Awards Exercisable, Ending Balance | [6] | 1,743,000 |
Number of Awards Vested and expected to vest, Ending Balance | [6] | 4,298,000 |
Weighted Average Exercise Price Per Award Outstanding, Beginning Balance | [4] | $ 24.21 |
Granted, Weighted Average Exercise Price Per Award |  | 15.92 |
Exercised, Weighted Average Exercise Price Per Award |  | 15.22 |
Forfeited, Weighted Average Exercise Price Per Award | [5] | 32.02 |
Weighted Average Exercise Price Per Award Outstanding, Ending Balance | [4] | 19.85 | $ 24.21
Exercisable, Weighted Average Exercise Price Per Award, Ending Balance | [6] | 26.38 |
Weighted Average Exercise Price Per Award, Vested and expected to vest, Ending Balance | [6] | $ 19.9 |
Weighted Average Remaining Contractual Term Outstanding | [4] | 6 years 4 months 24 days | 4 years 7 months 6 days
Exercisable Weighted Average Remaining Contractual Term | [6] | 2 years 2 months 12 days |
Weighted Average Remaining Contractual Term, Vested and expected to vest | [6] | 6 years 4 months 24 days |
Aggregate Intrinsic Value Outstanding | [4],[7] | $ 2.4 | $ 0.3
Exercisable, Aggregate Intrinsic Value | [6],[7] | 0.0 |
Aggregate Intrinsic Value, Vested and expected to vest | [6],[7] | $ 2.4 |
Granted, Weighted Average Grant Date Fair Value Per Share |  | $ 7.83 | $ 6.38
[1] | Includes 307,116 and 520,138 performance based stock unit awards as of December 31, 2023 and 2022, respectively, which represents the maximum amount that can vest.
[2] | Includes 29,927 performance-based stock unit awards.
[3] | Includes 183,095 performance-based stock unit awards.
[4] | Includes 0.6 million and 0.8 million performance condition SARs as of December 31, 2023 and 2022, respectively.
[5] | Includes 0.2 million performance condition SARs.
[6] | Includes 0.6 million performance condition SARs.
[7] | The intrinsic value is the amount by which the current market value of the underlying stock exceeds the exercise price of the stock awards.

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