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Property and Equipment (Tables)
 12 Months Ended
Dec. 31, 2016
Property Plant And Equipment [Abstract]  
Property and Equipment

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

 

 

December 31,

 

 

2016

 

 

2015

 

Land

$

24,708

 

 

$

9,855

 

Building and improvements

 

36,269

 

 

 

35,267

 

Leasehold improvements

 

5,016

 

 

 

4,419

 

Computer equipment and software

 

91,302

 

 

 

77,887

 

Furniture and equipment

 

13,852

 

 

 

13,260

 

Transportation equipment

 

472,634

 

 

 

405,322

 

Construction in process

 

450

 

 

 

-

 

 

 

644,231

 

 

 

546,010

 

Less:  Accumulated depreciation and amortization

 

(205,637

)

 

 

(171,163

)

Property and Equipment, net

$

438,594

 

 

$

374,847