Note 14 - Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Income (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Balance	$ 1,668,602
Balance	1,776,261
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(7,727)
Other comprehensive income before reclassifications	2,524
Tax effect	(311)
Net current period other comprehensive income	2,213
Balance	(5,514)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(15,350)
Other comprehensive income before reclassifications	2,919
Tax effect	0
Net current period other comprehensive income	2,919
Balance	(12,431)
AOCI Attributable to Parent [Member]
Balance	(23,077)
Other comprehensive income before reclassifications	5,443
Tax effect	(311)
Net current period other comprehensive income	5,132
Balance	$ (17,945)