Note 3 - Share-based Compensation

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [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,
	2014		2013
Restricted share units:
Pretax compensation expense	$	7,760	$	7,203
Tax benefit		2,957		2,755
Restricted share unit expense, net of tax	$	4,803	$	4,448
Performance share units:
Pretax compensation expense	$	2,115	$	1,571
Tax benefit		806		601
Performance share unit expense, net of tax	$	1,309	$	970
Stock options:
Pretax compensation expense	$	97	$	363
Tax benefit		37		139
Stock option expense, net of tax	$	60	$	224

As of March 31, 2014, we had $50.5 million, $14.4 million and $0.1 million of total unrecognized compensation expense related to restricted share units, performance share units, and stock options, respectively, that is to be recognized over the remaining weighted-average period of approximately 3.7 years for restricted share units, 3.0 years for performance share units, and 4 months for stock options. During the first quarter 2014, we issued 3,118 shares for vested restricted share units and 16,700 shares as a result of stock option exercises.