Note 13 - Share-based Compensation - Summary of Restricted Stock and Restricted Stock Units (Details) - Restricted Stock and Restricted Stock Units [Member] shares in Thousands	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Beginning Non-vested shares and share units, number of shares (in shares) | shares	10,594
Beginning Non-vested shares and share units, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 25.83
Granted, number of shares (in shares) | shares	117
Granted, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 42.48
Vested, number of shares (in shares) | shares	(180)
Vested, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 30.99
Forfeited, number of shares (in shares) | shares	(71)
Forfeited, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 22.47
Ending Non-vested shares and share units, number of shares (in shares) | shares	10,460
Ending Non-vested shares and share units, weighted average grant-date fair value (in dollars per share) | $ / shares	$ 25.95