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Note 14 - Earnings and Dividends Per Share - Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Dividend per share (in dollars per share)	$ 0.4
Dividends paid	$ 187.7	$ 188.1
O 2025 Q1 Dividends [Member]
Dividend per share (in dollars per share)	$ 0.39
Dividends paid	$ 61.5
O 2025 Q2 Dividends [Member]
Dividend per share (in dollars per share)	$ 0.4
Dividends paid	$ 63.8
O 2025 Q3 Dividends [Member]
Dividend per share (in dollars per share)	$ 0.4
Dividends paid	$ 62.4

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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X

- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

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