Note 13 - Share-based Compensation - Summary of Performance-based Restricted Stock Units (Details) - Performance Shares [Member] shares in Thousands	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Beginning Non-vested shares and share units, number of shares (in shares) | shares	3,684
Beginning Non-vested shares and share units, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 34.17
Granted, number of shares (in shares) | shares	1,761
Granted, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 40.76
Vested, number of shares (in shares) | shares	(130)
Vested, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 31.86
Performance adjustments (in shares) | shares	366
Performance adjustments (in dollars per share) | $ / shares	$ 34.46
Forfeited, number of shares (in shares) | shares	(62)
Forfeited, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 32.72
Ending Non-vested shares and share units, number of shares (in shares) | shares	5,619
Ending Non-vested shares and share units, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 36.27