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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2011
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property and equipment consisted of the following at December 31:
in thousands
 
Estimated Useful Life
 
2011

 
2010

Computer software and hardware
 
2

to
7
years
 
$
45,468

 
$
40,642

Transportation equipment
 
 
12
 
years
 
17,875

 
17,875

Leasehold improvements
 
Up to term of lease
 
15,934

 
15,853

Office furniture and equipment
 
5

to
10
years
 
6,200

 
6,127

Total cost
 
 
 
 
 
 
85,477

 
80,497

Accumulated depreciation and amortization
 
 
 
 
 
 
(47,249
)
 
(41,981
)
Property and equipment, net
 
 
 
 
 
 
$
38,228

 
$
38,516