Note 13 - Share-based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

						Weighted-
						average
				Weighted-		remaining		Aggregate
	Number			average		contractual		intrinsic
	of shares			exercise		term		value
	(in thousands)			price		(in years)		(in thousands)
Options outstanding as of December 31, 2021		11,904		$	22.31
Exercised		(1,422	)		19.42
Forfeited and expired		(159	)		18.22
Options outstanding as of June 30, 2022		10,323			22.77		6.29	$	93,772
Options expected to vest as of June 30, 2022		10,287			22.78		6.28		93,346
Options exercisable as of June 30, 2022		8,483			23.45		5.94		71,945

Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

				Weighted
	Number			average
	of shares			grant-date
	(in thousands)			fair value
Non-vested shares and share units at December 31, 2021		10,594		$	25.83
Granted		4,090			34.24
Vested		(3,067	)		24.42
Forfeited		(200	)		27.99
Non-vested shares and share units at June 30, 2022		11,417		$	29.19

Share-Based Payment Arrangement, Performance Shares, Activity [Table Text Block]

				Weighted
	Number			average
	of shares			grant-date
	(in thousands)			fair value
Non-vested share units at December 31, 2021		3,684		$	34.17
Granted		1,761			40.76
Vested		(130	)		31.86
Performance adjustments		366			34.46
Forfeited		(62	)		32.72
Non-vested share units at June 30, 2022		5,619		$	36.27