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Capital Stock - Non-Vested Stock Option Activity and Related Information (Detail) - $ / shares shares in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Options |  |  |
Options Outstanding Non-Vested Stock Options - beginning of year (shares) | 1,001 | 1,255 | 759
Stock options granted (in shares) | 0 | 507 | 1,490
Options, Vested (shares) | (434) | (761) | (853)
Options, Forfeited (shares) | 0 | 0 | (141)
Options Outstanding Non-Vested Stock Options - end of year (shares) | 567 | 1,001 | 1,255
Weighted-Average Grant Date Fair Value |  |  |
Weighted-Average Grant Date Fair Value, Outstanding non-vested stock options - beginning of Year (dollars per share) | $ 1.71 | $ 1.16 | $ 1.53
Weighted-average grant-date fair value of options granted (in dollars per share) | 0 | 2.55 | 1.16
Weighted-Average Grant Date Fair Value, Vested (dollars per share) | 1.59 | 1.36 | 0.65
Weighted-Average Grant Date Fair Value, Forfeited (dollars per share) | 0 | 0 | 6.03
Weighted-Average Grant Date Fair Value, outstanding non-vested stock options - end of year (dollars per share) | $ 1.81 | $ 1.71 | $ 1.16
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |
Employee stock compensation and other (in shares) (note 12) | 792 | 1,210 | 205

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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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