Note 12 - Other Income, Net - Interest and Other Income Components (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Interest income	$ 8,338	$ 6,805	$ 20,078	$ 20,349
Amortization of discount on available-for-sale securities	1,009	6,644	3,894	16,684
Gain on deferred compensation plan investments	3,793	3,894	8,023	9,180
Charitable commitments	(3,194)	(6,400)	(4,094)	(18,550)
Other	446	(665)	(158)	(333)
Total	$ 10,392	$ 10,278	$ 27,743	$ 27,330

Represents gain (loss) on commitment.

No definition available.

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- Definition

Gains or losses on deferred compensation plan investments.

+ References

No definition available.

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- Definition

The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Publisher FASB
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- Definition

Amount of interest income (expense) classified as nonoperating.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
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-Section 50
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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

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