Note 3 - Share-based Compensation

6 Months Ended

Jun. 30, 2013

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

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 June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Restricted share units:
Pretax compensation expense	$	7,094	$	6,899	$	14,297	$	13,645
Tax benefit		2,699		2,639		5,440		5,219
Restricted share unit expense, net of tax	$	4,395	$	4,260	$	8,857	$	8,426
Performance share units:
Pretax compensation expense	$	1,588	$	1,125	$	3,159	$	2,249
Tax benefit		604		430		1,202		860
Performance share unit expense, net of tax	$	984	$	695	$	1,957	$	1,389
Stock options:
Pretax compensation expense	$	158	$	264	$	521	$	495
Tax benefit		60		101		198		189
Stock option expense, net of tax	$	98	$	163	$	323	$	306

As of June 30, 2013, we had $35.9 million, $7.8 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 2.9 years for restricted share units, 2.8 years for performance share units, and 1.5 years for stock options. During the six months ended June 30, 2013, we issued 31,346 shares for vested restricted share units and 414,488 shares as a result of stock option exercises. Of these totals, 23,854 shares for vested restricted share units and 367,388 shares resulting from stock option exercises were issued during the second quarter 2013.