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Share-Based Compensation Plans (Tables)
9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of share-based compensation expense included in net income
A summary of share-based compensation expense included in net income is as follows:
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2018
 
2017
 
2018
 
2017
 
(In thousands)
Grants of common shares and options
$
2,494

 
$
2,945

 
$
9,638

 
$
9,402

Capitalized share-based compensation
157

 
(405
)
 
(769
)
 
(1,103
)
Share-based compensation expense
$
2,651

 
$
2,540

 
$
8,869

 
$
8,299