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Unaudited Quarterly Financial Data
 12 Months Ended
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]  
Unaudited Quarterly Financial Data UNAUDITED QUARTERLY FINANCIAL DATA

Quarterly results of operations for 2018 are summarized as follows:

 
First Quarter
 
Second Quarter
 
Third Quarter
 
Fourth Quarter
 
(In thousands except per share data)
 
 
 
 
 
 
 
 
2018:
 
 
 
 
 
 
 
Revenues
$
109,018

 
174,658

 
225,435

 
42,486

 
 
 
 
 
 
 
 
Earnings (loss)
$
26,875

 
32,466

 
35,641

 
21,776

 
 
 
 
 
 
 
 
Basic earnings (loss) per share:
 
 
 
 
 
 
 
Class A
$
7.60

 
9.18

 
10.08

 
6.16

Class B
$
3.80

 
4.59

 
5.04

 
3.08

 
 
 
 
 
 
 
 
Diluted earnings (loss) per share:
 
 
 
 
 
 
 
Class A
$
7.60

 
9.18

 
10.08

 
6.16

Class B
$
3.80

 
4.59

 
5.04

 
3.08


Quarterly results of operations for 2017 are summarized as follows:

 
First Quarter
 
Second Quarter
 
Third Quarter
 
Fourth Quarter
 
(In thousands except per share data)
 
 
 
 
 
 
 
 
2017:
 
 
 
 
 
 
 
Revenues
$
224,417

 
198,226

 
203,990

 
247,815

 
 
 
 
 
 
 
 
Earnings (loss)
$
23,538

 
25,483

 
21,813

 
39,587

 
 
 
 
 
 
 
 
Basic earnings (loss) per share:
 

 
 

 
 

 
 

Class A
$
6.66

 
7.21

 
6.17

 
11.19

Class B
$
3.33

 
3.60

 
3.08

 
5.60

 
 
 
 
 
 
 
 
Diluted earnings (loss) per share:
 

 
 

 
 

 
 

Class A
$
6.65

 
7.21

 
6.17

 
11.19

Class B
$
3.33

 
3.60

 
3.08

 
5.60