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Earnings per Share Earnings per Share (Tables)
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The table below presents a reconciliation between basic and diluted weighted average shares outstanding, net income available to common shareholders and basic and diluted income per share for the three months ended March 31, 2014 and 2013:
 
 
Three Months Ended
 
 
March 31,
(In thousands, except per share amounts)
 
2014
 
2013
NUMERATOR
 
 
 
 
Net income
 
$
12,632

 
$
4,587

Preferred stock dividends
 
(1,219
)
 
—

Excess of fair value over book value of preferred shares redeemed
 
—

 
(2,190
)
Net income to common shareholders
 
11,413

 
2,397

Interest on 3.25% convertible senior subordinated notes due 2017
 
358

 
—

Interest on 3.00% convertible senior subordinated notes due 2018
 
482

 
—

Diluted income available to common shareholders
 
$
12,253

 
$
2,397

DENOMINATOR
 
 
 
 
Basic weighted average shares outstanding
 
24,417

 
22,273

Effect of dilutive securities:
 
 
 
 
Stock option awards
 
239

 
296

Deferred compensation awards
 
129

 
119

3.25% convertible senior subordinated notes due 2017
 
2,416

 
—

3.00% convertible senior subordinated notes due 2018
 
2,669

 
—

Diluted weighted average shares outstanding - adjusted for assumed conversions
 
29,870

 
22,688

Earnings per common share
 
 
 
 
Basic
 
$
0.47

 
$
0.11

Diluted
 
$
0.41

 
$
0.11

Anti-dilutive equity awards not included in the calculation of diluted earnings per common share
 
1,154

 
856