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Note 3 - Share-based Compensation

6 Months Ended

Jun. 30, 2020

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,
	2020		2019		2020		2019
Restricted share units:
Pretax compensation expense	$	12,429	$	10,892	$	27,108	$	20,634
Tax benefit		3,182		2,723		6,940		5,158
Restricted share unit expense, net of tax	$	9,247	$	8,169	$	20,168	$	15,476

Performance share units:
Pretax compensation expense	$	3,573	$	3,840	$	6,957	$	7,670
Tax benefit		915		960		1,781		1,917
Performance share unit expense, net of tax	$	2,658	$	2,880	$	5,176	$	5,753

As of June 30, 2020, we had $84.3 million and $20.7 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 3.2 years for restricted share units and 2.4 years for performance share units. During the six months ended June 30, 2020, we issued 91,352 shares for vested restricted share units and 44,870 shares for vested performance share units. Of these totals, 56,571 shares for vested restricted share units were issued during the second quarter 2020.