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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Schedule of Weighted-Average Number of Shares Outstanding
The following is a calculation of the basic and diluted weighted-average shares outstanding for the three months ended March 31, 2014 and 2013: 
 
Three Months Ended 
 March 31,
 
2014
 
2013
 
(In thousands)
Basic weighted average common shares outstanding
99,560

 
92,375

Dilution effect of stock awards at end of period
489

 
276

Diluted weighted average common shares outstanding
100,049

 
92,651

Anti-dilutive stock-based compensation awards
1,047

 
778