v3.26.1
Stockholders' Equity and Restrictions (Changes in Stock) (Details) - shares
shares in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Common Stock Class A    
Class of Stock [Line Items]    
Common Stock, Balance at beginning of year 54,626 54,235
Stock issued for compensation 343 331
Common Stock, Balance at end of period 54,969 54,566
Treasury Stock    
Class of Stock [Line Items]    
Common Stock, Balance at beginning of year 5,330 5,330
Stock issued for compensation 0 0
Common Stock, Balance at end of period 5,330 5,330