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Retirement Plans and Other Post-Retirement Benefits - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Employer contribution of employee's eligible earnings, percentage 7.00%    
Projected benefit obligation $ 44,885 $ 47,333  
Defined contribution plans Employees contribution 50.00%    
Expense associated with Defined Contribution Plans $ 2,400 $ 2,000 $ 1,900
Employer discretionary contribution of employee's eligible earnings, percentage 10.00% 11.00%  
Non-qualified Plans | Unfunded      
Defined Benefit Plan Disclosure [Line Items]      
Projected benefit obligation $ 44,900    
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Decrease in projected benefit obligation     309,500
Decrease in plan assets     309,500
Pension plan settlement charge   $ 2,300 $ 75,300
Assets remain in pension trust (44,885) $ (47,333)  
Amount transferred to suspense account to fund future 401(k) contributions 14,100    
Paying of excise taxes 8,300    
Available for general corporate purposes $ 33,300    
Discount rates 2.42% 2.17%  
Pension Benefits | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rates 2.88%    
Pension Benefits | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rates 1.10%    
Pension Benefits | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Assets remain in pension trust   $ 53,400  
Deferred Compensation Plan | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Employer contribution of employee's eligible earnings, percentage 7.00%    
Other Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Assets remain in pension trust $ (5,130) $ (5,967)  
Discount rates 2.70% 2.30%