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Note 6 - Accumulated Other Comprehensive Loss - Disclosure of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Balance $ 2,214,087 $ 1,390,204 $ 1,032,851
Net current-period other comprehensive income (loss) (10,347) (20,501) (9,337)
Balance 2,259,255 2,214,087 1,390,204
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]      
Balance (52,704) (11,674)  
Other comprehensive income (loss) before reclassifications (48,841) [1] (41,030) [2]  
Net current-period other comprehensive income (loss) (48,841) (41,030)  
Balance (101,545) (52,704) (11,674)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]      
Balance (2,051) (22,580)  
Other comprehensive income (loss) before reclassifications 38,494 [3] 20,529 [4]  
Net current-period other comprehensive income (loss) 38,494 20,529  
Balance 36,443 (2,051) (22,580)
AOCI Attributable to Parent [Member]      
Balance (54,755) (34,254) (24,917)
Other comprehensive income (loss) before reclassifications (10,347) (20,501)  
Amounts reclassified from AOCL 0    
Net current-period other comprehensive income (loss) (10,347) (20,501)  
Balance $ (65,102) $ (54,755) $ (34,254)
[1] Represents unfavorable impact from the strengthening of the U.S. dollar against foreign currencies during the year ended December 31, 2022, particularly the Euro and British Pound.
[2] Represents unfavorable impact from the strengthening of the U.S. dollar against foreign currencies during the year ended December 31, 2021, particularly the Euro and British Pound.
[3] Represents unrealized gains of $51,352 on the interest rate swaps, net of tax effect of $(12,858) for the year ended December 31, 2022.
[4] Represents unrealized gains of $27,462 on the interest rate swaps, net of tax effect of $(6,933) for the year ended December 31, 2021.