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Share-Based Compensation - Summary of Activities Under Share-Based Compensation Plans (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Outstanding and nonvested as of December 31, 2020, Number of Shares | [1] | 3,400 |
Granted, Number of Shares | [2] | 3,243 |
Vested, Number of Shares | [3] | (1,081) |
Forfeited, Number of Shares | [4] | (1,024) |
Outstanding and nonvested as of December 31, 2021, Shares | [1] | 4,538 | 3,400
Number of Shares, Expected to vest as of December 31, 2021 | [5] | 4,033 |
Outstanding and nonvested as of December 31, 2020, Weighted Average Grant Date Fair Value Per Share | [1] | $ 45.26 |
Granted, Weighted Average Grant Date Fair Value Per Share | [2] | 28.01 |
Vested, Weighted Average Grant Date Fair Value Per Share | [3] | 47.66 |
Forfeited, Weighted Average Grant Date Fair Value Per Share | [4] | 41.84 |
Outstanding and nonvested as of December 31, 2021, Weighted Average Grant Date Fair Value Per Share | [1] | 33.14 | $ 45.26
Expected to vest as of December 31, 2020, Weighted Average Grant Date Fair Value Per Share | [5] | $ 32.45 |
SARs [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of Awards Outstanding, Beginning Balance | [6] | 2,622 |
Granted, Number of Awards |  | 784,000 |
Exercised, Number of Awards | [7] | (82) |
Forfeited, Number of Awards |  | (250) |
Number of Awards Outstanding, Ending Balance | [6] | 3,074 | 2,622
Number of Awards Exercisable, Ending Balance | [8] | 2,290 |
Number of Awards Vested and expected to vest, Ending Balance | [8] | 3,040 |
Weighted Average Exercise Price Per Award Outstanding, Beginning Balance | [6] | $ 27.10 |
Granted, Weighted Average Exercise Price Per Award |  | 14.45 |
Exercised, Weighted Average Exercise Price Per Award | [7] | 20.58 |
Forfeited, Weighted Average Exercise Price Per Award |  | 25.08 |
Weighted Average Exercise Price Per Award Outstanding, Ending Balance | [6] | 24.21 | $ 27.10
Exercisable, Weighted Average Exercise Price Per Award, Ending Balance | [8] | 27.55 |
Weighted Average Exercise Price Per Award, Vested and expected to vest, Ending Balance | [8] | $ 24.32 |
Weighted Average Remaining Contractual Term Outstanding | [6] | 4 years 7 months 6 days | 3 years 9 months 18 days
Exercisable Weighted Average Remaining Contractual Term | [8] | 2 years 9 months 18 days |
Weighted Average Remaining Contractual Term, Vested and expected to vest | [8] | 4 years 7 months 6 days |
Aggregate Intrinsic Value Outstanding | [6] | $ 0.3 | $ 36.3
Exercisable, Aggregate Intrinsic Value | [8] | 0.0 |
Aggregate Intrinsic Value, Vested and expected to vest | [8] | $ 0.3 |
[1] | Includes 520,138 and 913,388 performance based stock unit awards as of December 31, 2022 and 2021, respectively, which represents the maximum amount that can vest.
[2] | Includes 559,430 performance-based stock unit awards.
[3] | Includes 270,021 performance-based stock unit awards.
[4] | Includes 682,659 performance-based stock unit awards.
[5] | Includes 136,409 performance-based stock unit awards.
[6] | Includes 0.8 million performance condition SARs as of December 31, 2022 and 2021.
[7] | Includes less than 0.1 million performance condition SARs.
[8] | Includes 0.8 million performance condition SARs.

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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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