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Property and Equipment (Tables)
 12 Months Ended
Dec. 31, 2017
Property and Equipment  
Schedule of components of property and equipment

Property and equipment consist of the following (dollars in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

Estimated

 

 

 

 

 

 

 

 

    

Useful Lives

    

December 31,

 

 

    

in Years

    

2017

    

2016

 

Land

 

 —

 

$

2,745

 

$

2,745

 

Transportation equipment

 

1 - 7

 

 

87,120

 

 

74,137

 

Machinery and equipment

 

1 - 20

 

 

30,064

 

 

27,843

 

Computer and telephone equipment

 

1 - 10

 

 

20,463

 

 

20,791

 

Buildings and leasehold improvements

 

1 - 40

 

 

38,422

 

 

35,166

 

Furniture and fixtures

 

1 - 17

 

 

4,473

 

 

4,224

 

Construction in progress

 

 —

 

 

12,614

 

 

425

 

 

 

 

 

 

195,901

 

 

165,331

 

Less—Accumulated depreciation

 

 

 

 

(108,310)

 

 

(97,136)

 

Property and equipment, net

 

 

 

$

87,591

 

$

68,195