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Capital Stock - Details Regarding Outstanding and Exercisable Stock Options (Detail) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]        
Number of Outstanding Options (in shares) 6,208,000      
Outstanding Options, Weighted-Average Remaining Life (Years) 6 years      
Outstanding Options, Weighted-Average Exercise Price (dollars per share) $ 6.99 $ 9.90 $ 10.02 $ 10.77
Number of Exercisable Options (in shares) 4,952,000      
Exercisable Options, Weighted-Average Remaining Life (Years) 5 years 1 month 6 days      
Exercisable Options, Weighted-Average Exercise Price (dollars per share) $ 8.03 $ 10.86 $ 13.17  
Performance Shares        
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]        
Number of shares or units granted equity based compensation awards   489,443    
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture   $ 5.7    
Restricted Stock Units        
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]        
Number of shares or units granted equity based compensation awards 787,586 355,944 986,314  
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture $ 2.3 $ 1.4 $ 3.1  
Vested restricted stock (in shares) 631,706 880,320 480,498  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Deferred 243,171 481,341    
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 $ 1.7 $ 0.0    
Risk-free interest rate used in computing fair value of options granted 3.01%      
Range Of Exercise Prices [Member]        
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]        
Number of Outstanding Options (in shares) 3,812,000      
Outstanding Options, Weighted-Average Remaining Life (Years) 7 years 3 months 18 days      
Outstanding Options, Weighted-Average Exercise Price (dollars per share) $ 3.54      
Number of Exercisable Options (in shares) 2,556,000      
Exercisable Options, Weighted-Average Remaining Life (Years) 6 years 2 months 12 days      
Exercisable Options, Weighted-Average Exercise Price (dollars per share) $ 3.86      
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) 1,586,000      
Outstanding Options, Weighted-Average Remaining Life (Years) 4 years 1 month 6 days      
Outstanding Options, Weighted-Average Exercise Price (dollars per share) $ 8.95      
Number of Exercisable Options (in shares) 1,586,000      
Exercisable Options, Weighted-Average Remaining Life (Years) 4 years 1 month 6 days      
Exercisable Options, Weighted-Average Exercise Price (dollars per share) $ 8.95      
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) 580,000      
Outstanding Options, Weighted-Average Remaining Life (Years) 3 years 9 months 18 days      
Outstanding Options, Weighted-Average Exercise Price (dollars per share) $ 10.18      
Number of Exercisable Options (in shares) 580,000      
Exercisable Options, Weighted-Average Remaining Life (Years) 3 years 9 months 18 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) 230,000      
Outstanding Options, Weighted-Average Remaining Life (Years) 1 year 8 months 12 days      
Outstanding Options, Weighted-Average Exercise Price (dollars per share) $ 42.73      
Number of Exercisable Options (in shares) 230,000      
Exercisable Options, Weighted-Average Remaining Life (Years) 1 year 8 months 12 days      
Exercisable Options, Weighted-Average Exercise Price (dollars per share) $ 42.73      
Range of Exercise Prices, lower limit (USD per share) 20.00      
Range of Exercise Prices, upper limit (USD per share) $ 59.99