Note 22 - Earnings Per Share (Details Textual) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	3.3	2.9	4.0
Dilutive Securities Excluded In Computation Of Earnings Per Share Amount (in shares)			0.7
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)			0.6
Series B Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	1.0	1.0
Series C Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	1.1	1.0
Series A Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)			2.0
Two Thousand Twenty One Convertible Notes [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share, Amount, Value	$ 25	$ 25