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Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Reconciles Numerator and Denominator of Basic and Diluted Earnings Per Share Computations

The following table reconciles the numerator (i.e., income) and denominator (i.e., shares) of the basic and diluted earnings per share computations for the periods presented (in thousands, except per share data):

 

 

Three Months Ended

 

 

 

March 31,

 

 

 

2018

 

 

2017

 

 

Numerator for EPS:

 

 

 

 

 

 

 

 

Net income

$

40,055

 

 

$

31,199

 

 

Less: Preferred stock dividends

 

(3

)

 

 

(3

)

 

Income available to common stockholders

$

40,052

 

 

$

31,196

 

 

Denominator for EPS:

 

 

 

 

 

 

 

 

Weighted average common shares outstanding

 

34,839

 

 

 

35,140

 

 

Plus:  Assumed conversion of share-based

   compensation (1)

 

796

 

 

 

1,015

 

 

Assumed conversion of preferred stock

 

25

 

 

 

25

 

 

Weighted average diluted common shares

   outstanding

 

35,660

 

 

 

36,180

 

 

Basic earnings per common share

$

1.15

 

 

$

0.89

 

 

Diluted earnings per common share

$

1.12

 

 

$

0.86

 

 

 

(1)

Represents the dilutive effect of unvested restricted stock, unvested performance share units and unexercised stock options.