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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Stock Units (RSU)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cumulative performance targets 3 years    
Additional service period 5 years    
Performance Share Awards (PSAs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cumulative performance targets 2 years    
Additional service period 1 year    
Grants under performance share awards (in shares) 162,480 171,150 218,422
Weighted average grant date fair value (in dollars per share) $ 16.71 $ 16.65 $ 15.86
Restricted Stock Units (RSU) and Performance Share Awards (PSAs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grants under performance share awards (in shares) 374,931,000 400,854,000 600,820,000
Unrecognized compensation expense for outstanding RSUs and PSAs $ 3.6    
The weighted average remaining period over which the expense will be recognized 1 year 4 months 24 days    
Stock Only Stock Appreciation Rights (SOSARs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period of stock 3 years    
Share-based payment award, shares issued in period (in shares) 0 0 0
Intrinsic value of SOSARs vested and expected to vest $ 0.2    
The remaining weighted average contractual life of outstanding SOSARs 2 years 6 months    
Long Term Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock available for future issuance (in shares) 1,628,094