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Capital Stock - Non-Vested Stock Option Activity and Related Information (Detail) - $ / shares
shares in Thousands
 12 Months Ended
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