Note 4 - Capital Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Common Stock, Dividends, Per Share, Declared		$ 0.43
Treasury Stock, Shares, Acquired			3,040,000
Treasury Stock, Value, Acquired, Cost Method			$ 513,924	$ 159,576	$ 300,030
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 882,100	$ 882,100
Exercise or Vesting [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		1,100,000	1,100,000
Future Issuance [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		3,500,000	3,500,000
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared	$ 0.44