XML 18 R8.htm IDEA: XBRL DOCUMENT v2.4.0.6
Property and Equipment
12 Months Ended
Dec. 31, 2011
Property and Equipment [Abstract]  
PROPERTY AND EQUIPMENT
(2) PROPERTY AND EQUIPMENT

The following table summarizes the Company’s property and equipment at December 31, 2011 and 2010.

 

                 
    December 31,     December 31,  
    2011     2010  
    (Thousands of dollars)  

Flight equipment

  $ 811,758     $ 734,963  

Facility & improvements

    45,813       42,993  

Operating equipment

    22,275       21,030  

Data processing equipment

    29,739       22,957  

Vehicles

    7,402       7,216  

Medical equipment

    5,739       6,506  

Other

    3,952       3,950  
   

 

 

   

 

 

 
      926,678       839,615  

Less accumulated depreciation and amortization

    (266,922     (243,082
   

 

 

   

 

 

 

Property and equipment, net

  $ 659,756     $ 596,533