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Common Stock (Tables)
 12 Months Ended
Dec. 31, 2015
Equity [Abstract]  
Share Repurchases of Common Stock

The Company made the following share repurchases during the years indicated:

  

 

 

Year Ended December 31,

 

 

 

2015

 

 

2014

 

 

2013

 

Aggregate purchase price

 

$

431,367

 

 

$

567,544

 

 

$

554,491

 

Number of shares repurchased

 

 

290

 

 

 

508

 

 

 

581