Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table reflects the allocation of net income to common shareholders and EPS computations for the periods indicated based on a weighted average number of common stock outstanding for the period:

For the Three Months Ended June 30,
 
For the Six Months Ended June 30,
(in thousands, except per share data)
2018
 
2017

2018

2017
Net income attributable to Class A Common Stock
$
63,541


$
20,762


$
129,631


$
30,585

Add: Income from conversion of Class C Common Stock


1,477




1,995

Adjusted net income attributable to Class A Common Stock
63,541

 
22,239

 
129,631

 
32,580

 
 
 
 
 
 
 
 
Basic net earnings per share of Class A Common Stock
$
0.24

 
$
0.09

 
$
0.49

 
$
0.14

Diluted net earnings per share of Class A Common Stock
$
0.24

 
$
0.09

 
$
0.49

 
$
0.14

 
 
 
 
 
 
 
 
Basic weighted average shares of Class A Common Stock outstanding
263,757

 
223,623

 
262,547

 
212,759

Add: Dilutive effects of equity awards
3,249

 
925

 
3,554

 
2,046

Add: Dilutive effects of conversion

 
19,156

 

 
19,156

Diluted weighted average shares of Class A Common Stock outstanding
267,006

 
243,704

 
266,101

 
233,961

Summary of Shares Excluded From Diluted Earnings Per Share Calculation
For the three and six months ended June 30, 2018 and 2017, the following shares were excluded from the diluted earnings per share calculation as their impacts were anti-dilutive:

For the Three Months Ended June 30,
 
For the Six Months Ended June 30,
(in thousands)
2018
 
2017
 
2018
 
2017
Out-of-the-money stock options
643

 
1,498

 
407

 
818

Weighted average shares of Class C Common Stock
12,314

 

 
13,497

 

Performance stock units
155

 

 
77