Note 15 - Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	May 21, 2025	Jun. 30, 2025	Dec. 31, 2024	Feb. 26, 2021
Stock Authorized (in shares)		560.0
Common Stock, Shares Authorized (in shares)		500.0
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)		60.0
Preferred Stock, No Par Value (in dollars per share)		$ 0
Common Stock, Shares, Outstanding (in shares)		81.0	80.5
Treasury Stock, Common, Shares (in shares)		1.5	1.3
At-The-Market Equity Offering Program [Member]
Sale of common stock value	$ 100
Sale of stock price per share	$ 0.01
BofA [Member] | At-The-Market Equity Offering Program [Member] | Maximum [Member]
sale of common stock, percentage of commission	3.00%
Series B Preferred Stock [Member]
Preferred Stock, No Par Value (in dollars per share)				$ 0
Preferred Stock, Shares Outstanding (in shares)		1.0	1.0
Series C Preferred Stock [Member]
Preferred Stock, Shares Outstanding (in shares)		1.2	1.2