Annual report [Section 13 and 15(d), not S-K Item 405]

Shareholders' Equity - Stock Repurchase Program (Details)

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Shareholders' Equity - Stock Repurchase Program (Details) - $ / shares
Feb. 17, 2025
Dec. 31, 2024
Dec. 31, 2023
Feb. 17, 2021
Equity, Class of Treasury Stock [Line Items]        
Common stock, shares authorized (in shares)   24,000,000 24,000,000  
Common stock, par value (in dollars per share)   $ 1 $ 1  
Amended Share Repurchase Program        
Equity, Class of Treasury Stock [Line Items]        
Number of shares authorized to be repurchased (in shares)   435,608   790,383
Subsequent Event        
Equity, Class of Treasury Stock [Line Items]        
Number of shares authorized to be repurchased (in shares) 1,000,000      
Stock repurchase program, term 24 months