Note 3 - Share-based Compensation

6 Months Ended

Jun. 30, 2021

Notes to Financial Statements

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 June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Restricted share units:
Pretax compensation expense	$	12,214	$	12,429	$	22,993	$	27,108
Tax benefit		3,078		3,182		5,795		6,940
Restricted share unit expense, net of tax	$	9,136	$	9,247	$	17,198	$	20,168
Performance share units:
Pretax compensation expense	$	4,284	$	3,573	$	8,473	$	6,957
Tax benefit		1,080		915		2,135		1,781
Performance share unit expense, net of tax	$	3,204	$	2,658	$	6,338	$	5,176

As of June 30, 2021, we had $84.4 million and $28.0 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 2.6 years for performance share units. During the six months ended June 30, 2021, we issued 11,247 shares for vested restricted share units and 76,948 shares for vested performance share units. Of these totals, 1,119 shares for vested restricted share units were issued during the second quarter 2021.