Note 15 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024
Balance	$ 2,195,858		$ 2,049,939
Balance	2,351,690	$ 2,195,858
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(1,481)	(1,849)	(2,184)
Other comprehensive income (loss) before reclassifications	1,014	355	87
Tax effect	(37)	(50)	248
Other comprehensive loss, net of tax	977	368	335
Amounts reclassified from accumulated other comprehensive loss		63
Balance	(504)	(1,481)	(1,849)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(43,013)	(38,700)	(24,878)
Other comprehensive income (loss) before reclassifications	22,321	(4,313)	(13,822)
Tax effect	0	0	0
Other comprehensive loss, net of tax	22,321	(4,313)	(13,822)
Amounts reclassified from accumulated other comprehensive loss		0
Balance	(20,692)	(43,013)	(38,700)
AOCI Attributable to Parent [Member]
Balance	(44,494)	(40,549)	(27,062)
Other comprehensive income (loss) before reclassifications	23,335	(3,958)	(13,735)
Tax effect	(37)	(50)	248
Other comprehensive loss, net of tax	23,298	(3,945)	(13,487)
Amounts reclassified from accumulated other comprehensive loss		63
Balance	$ (21,196)	$ (44,494)	$ (40,549)