Note 3 - Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Notes Tables

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Restricted share units:
Pretax compensation expense	$	4,668	$	5,812	$	20,372	$	20,243
Tax benefit		1,778		2,214		7,762		7,713
Restricted share unit expense, net of tax	$	2,890	$	3,598	$	12,610	$	12,530
Performance share units:
Pretax compensation expense	$	1,645	$	1,462	$	6,638	$	5,716
Tax benefit		627		557		2,529		2,178
Performance share unit expense, net of tax	$	1,018	$	905	$	4,109	$	3,538
Stock options:
Pretax compensation expense	$	-	$	33	$	-	$	163
Tax benefit		-		13		-		62
Stock option expense, net of tax	$	-	$	20	$	-	$	101