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Capital Stock - Details Regarding Outstanding and Exercisable Stock Options (Detail) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Number of Outstanding Options (in shares) | 4,380,000 |  |  |
Outstanding Options, Weighted-Average Remaining Life (Years) | 4 years 6 months |  |  |
Outstanding Options, Weighted-Average Exercise Price (dollars per share) | $ 7.66 | $ 7.27 | $ 6.99 | $ 9.90
Number of Exercisable Options (in shares) | 3,813,000 |  |  |
Exercisable Options, Weighted-Average Remaining Life (Years) | 4 years |  |  |
Exercisable Options, Weighted-Average Exercise Price (dollars per share) | $ 8.16 | $ 8.01 | $ 8.03 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Deferred | 28,154 | 18,932 |  |
Restricted Stock Units |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Number of shares or units granted equity based compensation awards | 273,657 | 329,735 | 787,586 |
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture | $ 2.6 | $ 1.9 | $ 2.3 |
Vested restricted stock (in shares) | 386,305 | 651,135 | 631,706 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Deferred | 180,965 | 354,580 |  |
Stock Options |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | $ 5.6 | $ 7.4 |  |
Risk-free interest rate used in computing fair value of options granted | 3.83% |  |  |
Range Of Exercise Prices [Member] |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Number of Outstanding Options (in shares) | 1,850,000 |  |  |
Outstanding Options, Weighted-Average Remaining Life (Years) | 6 years 1 month 6 days |  |  |
Outstanding Options, Weighted-Average Exercise Price (dollars per share) | $ 3.36 |  |  |
Number of Exercisable Options (in shares) | 1,549,000 |  |  |
Exercisable Options, Weighted-Average Remaining Life (Years) | 5 years 9 months 18 days |  |  |
Exercisable Options, Weighted-Average Exercise Price (dollars per share) | $ 3.45 |  |  |
Range of Exercise Prices, lower limit (USD per share) | 0.00 |  |  |
Range of Exercise Prices, upper limit (USD per share) | $ 4.99 |  |  |
Range Of Exercise Prices One [Member] |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Number of Outstanding Options (in shares) | 1,861,000 |  |  |
Outstanding Options, Weighted-Average Remaining Life (Years) | 4 years |  |  |
Outstanding Options, Weighted-Average Exercise Price (dollars per share) | $ 8.13 |  |  |
Number of Exercisable Options (in shares) | 1,595,000 |  |  |
Exercisable Options, Weighted-Average Remaining Life (Years) | 3 years 3 months 18 days |  |  |
Exercisable Options, Weighted-Average Exercise Price (dollars per share) | $ 8.52 |  |  |
Range of Exercise Prices, lower limit (USD per share) | 5.00 |  |  |
Range of Exercise Prices, upper limit (USD per share) | $ 9.99 |  |  |
Range Of Exercise Prices Two [Member] |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Number of Outstanding Options (in shares) | 510,000 |  |  |
Outstanding Options, Weighted-Average Remaining Life (Years) | 2 years 2 months 12 days |  |  |
Outstanding Options, Weighted-Average Exercise Price (dollars per share) | $ 10.18 |  |  |
Number of Exercisable Options (in shares) | 510,000 |  |  |
Exercisable Options, Weighted-Average Remaining Life (Years) | 2 years 2 months 12 days |  |  |
Exercisable Options, Weighted-Average Exercise Price (dollars per share) | $ 10.18 |  |  |
Range of Exercise Prices, lower limit (USD per share) | 10.00 |  |  |
Range of Exercise Prices, upper limit (USD per share) | $ 19.99 |  |  |
Range Of Exercise Prices Three [Member] |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |  |  |  |
Number of Outstanding Options (in shares) | 159,000 |  |  |
Outstanding Options, Weighted-Average Remaining Life (Years) | 2 months 12 days |  |  |
Outstanding Options, Weighted-Average Exercise Price (dollars per share) | $ 43.99 |  |  |
Number of Exercisable Options (in shares) | 159,000 |  |  |
Exercisable Options, Weighted-Average Remaining Life (Years) | 2 months 12 days |  |  |
Exercisable Options, Weighted-Average Exercise Price (dollars per share) | $ 43.99 |  |  |
Range of Exercise Prices, lower limit (USD per share) | 20.00 |  |  |
Range of Exercise Prices, upper limit (USD per share) | $ 59.99 |  |  |

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- Definition Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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