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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Computation of Basic and Dilutive Net Income Per Share
The following table presents the computation of basic and diluted earnings per common share for the periods indicated (dollar and share amounts in thousands, except per share amounts):
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
 
2018
 
2017 (1)
 
2018
 
2017 (1)
Basic Earnings per Common Share
 
 
 
 
 
 
 
 
Net income attributable to Company
 
$
29,694

 
$
14,336

 
$
59,311

 
$
33,517

Less: Preferred stock dividends
 
(5,925
)
 
(3,225
)
 
(11,850
)
 
(6,450
)
Net income attributable to Company's common stockholders
 
$
23,769

 
$
11,111

 
$
47,461

 
$
27,067

Basic weighted average common shares outstanding
 
115,211

 
111,863

 
113,623

 
111,792

Basic Earnings per Common Share
 
$
0.21

 
$
0.10

 
$
0.42

 
$
0.24

 
 
 
 
 
 
 
 
 
Diluted Earnings per Common Share:
 
 
 
 
 
 
 
 
Net income attributable to Company
 
$
29,694

 
$
14,336

 
$
59,311

 
$
33,517

Less: Preferred stock dividends
 
(5,925
)
 
(3,225
)
 
(11,850
)
 
(6,450
)
Add back: Interest expense on convertible notes for the period, net of tax
 
2,633

 
—

 
5,267

 
—

Net income attributable to Company's common stockholders
 
$
26,402

 
$
11,111

 
$
52,728

 
$
27,067

Weighted average common shares outstanding
 
115,211

 
111,863

 
113,623

 
111,792

Net effect of assumed PSUs vested
 
258

 
—

 
152

 
—

Net effect of assumed convertible notes conversion to common shares
 
19,695

 
—

 
19,695

 
—

Diluted weighted average common shares outstanding
 
135,164

 
111,863

 
133,470

 
111,792

Diluted Earnings per Common Share
 
$
0.20

 
$
0.10

 
$
0.40

 
$
0.24



(1) 
For the three and six months ended June 30, 2017, the Company's Convertible Notes were determined to be anti-dilutive and were not included in the calculation of diluted earnings per common share. There were no dilutive PSU awards during the three and six months ended June 30, 2017.