Note 15 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Mar. 31, 2024
Balance	$ 2,113,557	$ 2,049,939
Balance	2,195,858	2,113,557
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(1,849)	(2,184)
Other comprehensive income (loss) before reclassifications	355	87
Tax effect	(50)	248
Amounts reclassified from accumulated other comprehensive loss	63
Other comprehensive loss, net of tax	368	335
Balance	(1,481)	(1,849)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(38,700)	(24,878)
Other comprehensive income (loss) before reclassifications	(4,313)	(13,822)
Tax effect	0	0
Amounts reclassified from accumulated other comprehensive loss	0
Other comprehensive loss, net of tax	(4,313)	(13,822)
Balance	(43,013)	(38,700)
AOCI Attributable to Parent [Member]
Balance	(40,549)	(27,062)
Other comprehensive income (loss) before reclassifications	(3,958)	(13,735)
Tax effect	(50)	248
Amounts reclassified from accumulated other comprehensive loss	63
Other comprehensive loss, net of tax	(3,945)	(13,487)
Balance	$ (44,494)	$ (40,549)