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Note 6 - Accumulated Other Comprehensive Loss - Disclosure of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Balance $ 2,419,762 $ 1,655,938 $ 2,214,087 $ 1,390,204
Balance 2,319,605 1,782,277 2,319,605 1,782,277
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]        
Balance (106,645) (27,246) (52,704) (11,674)
Other comprehensive income (loss) before reclassifications (51,324) [1] (20,899) [1] (105,265) [2] (36,471) [3]
Amounts reclassified from AOCL 0 0 0 0
Net current-period other comprehensive income (loss) (51,324) (20,899) (105,265) (36,471)
Balance (157,969) (48,145) (157,969) (48,145)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]        
Balance 23,806 (10,337) (2,051) (22,580)
Other comprehensive income (loss) before reclassifications 13,757 [4] 2,941 [5] 39,614 [6] 15,184 [7]
Amounts reclassified from AOCL 0 0 0 0
Net current-period other comprehensive income (loss) 13,757 2,941 39,614 15,184
Balance 37,563 (7,396) 37,563 (7,396)
AOCI Attributable to Parent [Member]        
Balance (82,839) (37,583) (54,755) (34,254)
Other comprehensive income (loss) before reclassifications (37,567) (17,958) (65,651) (21,287)
Amounts reclassified from AOCL 0 0 0 0
Net current-period other comprehensive income (loss) (37,567) (17,958) (65,651) (21,287)
Balance $ (120,406) $ (55,541) $ (120,406) $ (55,541)
[1] Represents unfavorable impact from the strengthening of the U.S. dollar against foreign currencies during the three months ended September 30, 2021, particularly the Euro and British Pound.
[2] Represents unfavorable impact from the strengthening of the U.S. dollar against foreign currencies during the nine months ended September 30, 2022, particularly the Euro and British Pound.
[3] Represents unfavorable impact from the strengthening of the U.S. dollar against foreign currencies during the nine months ended September 30, 2021, particularly the Euro and British Pound.
[4] Represents unrealized gains of $18,404 on the interest rate swaps, net of tax effect of $(4,647) for the three months ended September 30, 2022.
[5] Represents unrealized gains of $3,934 on the interest rate swaps, net of tax effect of $(993) for the three months ended September 30, 2021.
[6] Represents unrealized gains of $52,995 on the interest rate swaps, net of tax effect of $(13,381) for the nine months ended September 30, 2022.
[7] Represents unrealized gains of $20,312 on the interest rate swaps, net of tax effect of $(5,128) for the nine months ended September 30, 2021.