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Summarized Quarterly Financial Data (Unaudited)
 12 Months Ended
Dec. 31, 2014
Summarized Quarterly Financial Data [Abstract]  
Summarized Quarterly Financial Data
13.
 Summarized Quarterly Financial Data (Unaudited)
 

Quarterly financial information for 2013 and 2014 is as follows (in thousands except per share data):

 

     Quarter   
2013     First   Second   Third   Fourth
Revenues
           $137,506       $131,980       $110,031       $124,083  
Income (loss) from operations
             29,919         26,257         6,621         (30,096)  
Net income (loss)
             17,231         15,002         3,149         (18,957)  
Net income (loss) per share:
                                                  
Basic
           $1.59       $1.43       $0.30       $(1.80)  
Diluted
           $1.59       $1.42       $0.30       $(1.80)  
 

 

     Quarter   
2014     First   Second   Third   Fourth
Revenues
           $116,468       $112,747       $100,756       $116,070  
Income from operations
             25,909         23,998         9,216         22,624  
Net income
             14,783         13,677         4,953         12,943  
Net income per share:
                                                  
Basic
           $1.40       $1.29       $0.47       $1.22  
Diluted
           $1.40       $1.29       $0.46       $1.21