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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Capital in Excess of Par Value
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Treasury Stock
Total SMP
Non- Controlling Interest
Beginning balance at Dec. 31, 2023 $ 650,873 $ 47,872 $ 101,751 $ 573,226 $ (5,974) $ (81,811) $ 635,064 $ 15,809
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net earnings 8,990     8,824     8,824 166
Other comprehensive income (loss), net of tax 164       168   168 (4)
Cash dividends paid (6,392)     (6,392)     (6,392)  
Purchase of treasury stock (2,571)         (2,571) (2,571)  
Stock-based compensation 1,270   950     320 1,270  
Employee Stock Ownership Plan 2,787   3     2,784 2,787  
Ending balance at Mar. 31, 2024 655,121 47,872 102,704 575,658 (5,806) (81,278) 639,150 15,971
Beginning balance at Dec. 31, 2024 630,082 47,872 100,135 575,385 (25,832) (81,815) 615,745 14,337
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net earnings 12,741     12,566     12,566 175
Other comprehensive income (loss), net of tax 12,141       12,177   12,177 (36)
Cash dividends paid (6,777)     (6,777)     (6,777)  
Stock-based compensation 1,550   149     1,401 1,550  
Employee Stock Ownership Plan 2,700   (737)     3,437 2,700  
Ending balance at Mar. 31, 2025 $ 652,437 $ 47,872 $ 99,547 $ 581,174 $ (13,655) $ (76,977) $ 637,961 $ 14,476