Note 3 - Share-based Compensation

3 Months Ended

Mar. 31, 2022

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 March 31,
	2022		2021
Restricted share units:
Pretax compensation expense	$	12,975	$	10,778
Tax benefit		3,250		2,727
Restricted share unit expense, net of tax	$	9,725	$	8,051
Performance share units:
Pretax compensation expense	$	6,166	$	4,189
Tax benefit		1,545		1,060
Performance share unit expense, net of tax	$	4,621	$	3,129

As of March 31, 2022, we had $106.7 million and $36.3 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 2.9 years for restricted share units and 2.4 years for performance share units. During the three months ended March 31, 2022, we issued 13,813 shares for vested restricted share units and 108,823 shares for vested performance share units.