v3.26.1
Condensed Consolidated Balance Sheets Unaudited (Parenthetical) - USD ($)
shares in Thousands, $ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Current Assets:    
Allowance for doubtful accounts $ 7,494 $ 7,244
Class A Non-Voting    
Shareholders' Investment:    
Par or stated value per share (USD per share) $ 1.00 $ 1.00
Shares authorized (shares) 50,000 50,000
Shares issued (shares) 29,614 29,860
Shares outstanding (shares) 29,614 29,860
Class B Voting    
Shareholders' Investment:    
Par or stated value per share (USD per share) $ 1.00 $ 1.00
Shares authorized (shares) 50,000 50,000
Shares issued (shares) 18,916 19,014
Shares outstanding (shares) 18,916 19,014