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Employee Benefit Plans (Narrative) (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Jan. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Defined contribution plan, cost recognized   $ 13,600 $ 20,900 $ 10,600
Look-back Period Under Employee Stock Purchase Plan   6 months    
Issuances of common stock under the employee stock purchase plan (In Shares)   0 58,000  
Issuances of common stock under the employee stock purchase plan   $ 0 $ 1,185  
Shares Available For Purchase Under Employee Stock Purchase Plan   877,000    
Salary continuation plan minimum period   10 years    
Salary continuation plan maximum period   20 years    
Present value of future salary contribution plan benefits   $ 47,200 49,000  
Postemployment benefits, period expense   4,100 4,800 $ 1,500
Deferred compensation cash-based arrangements, liability, current and noncurrent   15,900 13,700  
Cash surrender value of life insurance   693,800 680,900  
Other postretirement defined benefit plan, liabilities   $ 6,200 6,300  
Subsequent Event        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Issuances of common stock under the employee stock purchase plan (In Shares) 78,000      
Issuances of common stock under the employee stock purchase plan $ 1,400      
Employee Stock [Member]        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date   90.00%    
Supplemental Employee Retirement Plans, Defined Benefit        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Other deferred compensation arrangements, liability, current and noncurrent   $ 536 517  
Percentage of deferred salary   50.00%    
Deferred compensation liability, current and noncurrent   $ 14,100 13,100  
Pension and other postretirement defined benefit plans, liabilities   $ 7,800 $ 8,200  
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate   5.60% 5.02%  
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Normal Retirement Age   65    
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Annual Cost Of Living Benefit Adjustment   2.00%    
Defined Benefit Plan, Benefit Obligation   $ 18,000 $ 18,800  
Merger Related Deferred Compensation Plan        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Deferred compensation liability, current and noncurrent   $ 11,600 $ 8,500