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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($)
shares in Thousands, $ in Thousands
Common Stock
Class A Common Shares
Common Stock
Class B Common Shares
Common Stock
Additional Paid In Capital
Retained Earnings
Class A Common Shares
Retained Earnings
Class B Common Shares
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Class A Common Shares
Class B Common Shares
Total
Balance at beginning of period at Dec. 31, 2024     $ 4,587 $ 148,053     $ 853,627 $ (14,238)     $ 992,029
Balance (in shares) at Dec. 31, 2024 17,298 2,150                  
Increase (Decrease) in Stockholders' Equity                      
Net income             47,268       47,268
Net change in AOCI               2,573     2,573
Dividends declared on Common Stock:                      
Dividends declared on Common Stock         $ (7,799) $ (882)     $ (7,799) $ (882)  
Stock options exercised, net of shares withheld     8 2,671     (2,304)       375
Stock options exercised, net of shares withheld (in shares) 36                    
Net change in notes receivable on Class A Common Stock       (48)             (48)
Deferred director compensation expense - Class A Common Stock       143             143
Deferred designed key employee compensation expense - Class A Common Stock     (1) 269     (179)       89
Deferred designed key employee compensation expense - Class A Common Stock (In shares) 18                    
Employee stock purchase plan - Class A Common Stock     1 176             177
Employee stock purchase plan - Class A Common Stock (in shares) 3                    
Stock-based awards, Performance stock units, net of shares tendered back       36             36
Stock-based awards, Restricted stock, net of shares tendered back     (1) 17     (44)       (28)
Stock-based awards, Restricted stock, net of shares tendered back (in shares) 13                    
Stock-based awards, Stock options       156             156
Balance at end of period at Mar. 31, 2025     4,594 151,473     889,687 (11,665)     1,034,089
Balance (in shares) at Mar. 31, 2025 17,368 2,150                  
Balance at beginning of period at Dec. 31, 2025     4,601 156,695     945,399 (4,402)     1,102,293
Balance (in shares) at Dec. 31, 2025 17,393 2,148                  
Increase (Decrease) in Stockholders' Equity                      
Net income             42,569       42,569
Net change in AOCI               (2,532)     (2,532)
Dividends declared on Common Stock:                      
Dividends declared on Common Stock         $ (8,603) $ (967)     $ (8,603) $ (967)  
Stock options exercised, net of shares withheld     5 1,732     (2,102)       (365)
Stock options exercised, net of shares withheld (in shares) 26                    
Net change in notes receivable on Class A Common Stock       2             2
Deferred director compensation expense - Class A Common Stock       146             146
Deferred designed key employee compensation expense - Class A Common Stock       202             202
Deferred designed key employee compensation expense - Class A Common Stock (In shares) 27                    
Employee stock purchase plan - Class A Common Stock       159             159
Employee stock purchase plan - Class A Common Stock (in shares) 2                    
Stock-based awards, Performance stock units, net of shares tendered back       39             39
Stock-based awards, Restricted stock, net of shares tendered back       355     (38)       317
Stock-based awards, Restricted stock, net of shares tendered back (in shares) 19                    
Stock-based awards, Stock options       127             127
Balance at end of period at Mar. 31, 2026     $ 4,606 $ 159,457     $ 976,258 $ (6,934)     $ 1,133,387
Balance (in shares) at Mar. 31, 2026 17,467 2,148