v3.26.1
Note 7 - Stockholders' Equity - Schedule of Accumulated other comprehensive income (loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Balance $ 2,591,646 $ 2,039,514 $ 2,039,514 $ 1,968,104 $ 1,978,967
Balance 2,570,813 2,073,967 2,591,646 2,039,514 1,968,104
Changes in fair value of derivative contracts designated as hedge transactions          
Balance 1,505 5,994 5,994 13,708 9,162
Other comprehensive income (loss) before reclassification     6,143 (2,930) 22,384
Reclassification from AOCI to earnings     (13,121) (11,392) (18,669)
Reclassification from AOCI to fair value adjustments     0    
Provision for income taxes     (1,650) 2,822 (1,683)
Balance     1,505 5,994 13,708
Changes in fair value of derivative contracts designated as hedge transactions [Member]          
Balance 1,505 5,994 5,994    
Other comprehensive income (loss) before reclassification (1,507) 3,688      
Reclassification from AOCI to earnings (2,310) (2,178)      
Reclassification from AOCI to cost of sales and other direct production costs 349 1,825      
Reclassification from AOCI to fair value adjustments 525        
Provision for income taxes 786 (901)      
Balance (652) 8,428 1,505 5,994  
Adjustments for pension plane [Member]          
Balance (4,839) (16,260) (16,260) (7,871) (6,714)
Other comprehensive income (loss) before reclassification     11,916 (11,880) (1,333)
Reclassification from AOCI to earnings     (0) 0 0
Reclassification from AOCI to fair value adjustments     (15,359)    
Provision for income taxes     8,457 3,069 428
Balance     (4,839) (16,260) (7,871)
Adjustments For Pension Plans [Member]          
Balance (4,839) (16,260) (16,260)    
Other comprehensive income (loss) before reclassification 0 0      
Reclassification from AOCI to earnings 0 0      
Reclassification from AOCI to cost of sales and other direct production costs 0 0      
Reclassification from AOCI to fair value adjustments 0        
Provision for income taxes 0 0      
Balance (4,839) (16,260) (4,839) (16,260)  
Accumulated Other Comprehensive Income (Loss), Net          
Balance (3,334) (10,266) (10,266) 5,837 2,448
Other comprehensive income (loss) before reclassification     18,059 (14,810) 21,051
Reclassification from AOCI to earnings     (13,121) (11,392) (18,669)
Reclassification from AOCI to fair value adjustments     (15,359)    
Provision for income taxes     6,807 5,891 (1,255)
Balance (5,491) (7,832) (3,334) (10,266) $ 5,837
Accumulated Distributions in Excess of Net Income [Member]          
Balance (3,334) (10,266) (10,266)    
Other comprehensive income (loss) before reclassification (1,507) 3,688      
Reclassification from AOCI to earnings (2,310) (2,178)      
Reclassification from AOCI to cost of sales and other direct production costs 349 1,825      
Reclassification from AOCI to fair value adjustments 525        
Provision for income taxes 786 (901)      
Balance $ (5,491) $ (7,832) $ (3,334) $ (10,266)