v3.26.1
Investments (Details) - Employees' Profit Sharing and 401(k) Plan - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Investments    
Total investments at fair value $ 766,696,015 $ 761,535,758
Company common stock    
Investments    
Total investments at fair value 108,690,938 160,064,047
Money market funds    
Investments    
Total investments at fair value 2,132,168 3,244,471
Mutual funds    
Investments    
Total investments at fair value 209,577,409 534,967,618
Total assets in fair value hierarchy    
Investments    
Total investments at fair value 320,400,515 698,276,136
Level 1    
Investments    
Total investments at fair value 320,400,515 698,276,136
Level 1 | Company common stock    
Investments    
Total investments at fair value 108,690,938 160,064,047
Level 1 | Money market funds    
Investments    
Total investments at fair value 2,132,168 3,244,471
Level 1 | Mutual funds    
Investments    
Total investments at fair value 209,577,409 534,967,618
Investments measured at net asset value    
Investments    
Total investments at fair value $ 446,295,500 $ 63,259,622