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Note 3 - Share-based Compensation

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Text Block]

3.	Share-based Compensation

The following table summarizes the components of our share-based compensation program expense (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Restricted share units:
Pretax compensation expense	$	11,677	$	11,250	$	34,669	$	38,358
Tax benefit		2,931		2,880		8,702		9,820
Restricted share unit expense, net of tax	$	8,746	$	8,370	$	25,967	$	28,538
Performance share units:
Pretax compensation expense	$	4,269	$	3,344	$	12,742	$	10,300
Tax benefit		1,071		856		3,198		2,637
Performance share unit expense, net of tax	$	3,198	$	2,488	$	9,544	$	7,663

As of September 30, 2021, we had $74.1 million and $23.7 million of total unrecognized compensation expense related to restricted share units and performance share units, respectively, that is to be recognized over the remaining weighted average period of approximately 3.1 years for restricted share units and 2.5 years for performance share units. During the nine months ended September 30, 2021, we issued 159,801 shares for vested restricted share units and 95,415 shares for vested performance share units. Of these totals, 148,554 shares for vested restricted share units and 18,467 shares for vested performance share units were issued during the third quarter 2021.