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Earnings Per Share
 12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
Basic earnings per share is calculated by dividing net earnings by the weighted average shares outstanding during the period, without consideration for Common Stock equivalents. Diluted net earnings per share is calculated by adjusting weighted average shares outstanding for the dilutive effect of common share equivalents outstanding for the period, determined using the treasury-stock method. Common Stock options, unvested Common Restricted Stock Units and unvested Common Performance Share Units are considered to be Common Stock equivalents included in the calculation of diluted net income (loss) per share.
The basic and diluted income (loss) per share calculations are presented below:
(amounts in thousands, except share and per share amounts)
2019
 
2018
 
2017
Earnings per share basic:
 
 
 
 
 
Income from continuing operations
$
62,971

 
$
141,169

 
$
4,483

Equity earnings of non-consolidated entities
—

 
738

 
3,639

Net Income
$
62,971

 
$
141,907

 
8,122

Undeclared Series A Convertible Preferred Stock dividends
—

 
—

 
(10,462
)
Net income (loss) attributable to common shareholders
$
62,971

 
$
141,907

 
$
(2,340
)
 
 
 
 
 
 
Weighted average outstanding shares of Common Stock basic
100,618,105

 
104,530,572

 
97,460,676

 
 
 
 
 
 
Net income (loss) per share - basic
$
0.63

 
$
1.36

 
$
(0.02
)
(amounts in thousands, except share and per share amounts)
2019
 
2018
 
2017
Earnings per share diluted:
 
 
 
 
 
Net income (loss) - attributable to common shareholders
$
62,971

 
$
141,907

 
$
(2,340
)
 
 
 
 
 
 
Weighted average outstanding shares of Common Stock basic
100,618,105

 
104,530,572

 
97,460,676

Restricted stock units, performance share units and options to purchase Common Stock
846,220

 
1,830,085

 
—

Weighted average outstanding shares of Common Stock diluted
101,464,325

 
106,360,657

 
97,460,676

 
 
 
 
 
 
Net income (loss) per share - diluted
$
0.62

 
$
1.33

 
$
(0.02
)

The following table provides the securities that could potentially dilute basic earnings per share in the future, but were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive:
 
2019
 
2018
 
2017
Common Stock options
1,657,437
 
1,019,930
 
545,693
Restricted stock units
50,113
 
87,720
 
537
Performance share units
9,704
 
84,809
 
—

The prior period information has been revised. Please refer to Note 32 - Revision of Prior Period Financial Statements.