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Share-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2014
Text Block [Abstract]  
Schedule of share-based compensation expenses
Total share-based compensation expenses were as follows (in thousands):
 
Three months ended September 30,
 
Nine months ended September 30,
 
2014
 
2013
 
2014
 
2013
Option plan
$
6,310

 
$
5,866

 
$
18,263

 
$
16,843

Other share-based awards
8,103

 
23,810

 
19,202

 
41,915

Total share-based compensation before tax
14,413

 
29,676

 
37,465

 
58,758

Tax benefit
5,376

 
11,073

 
13,990

 
21,939

Total share-based compensation expense included in net income
$
9,037

 
$
18,603

 
$
23,475

 
$
36,819