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Property and Equipment
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property and Equipment

3. PROPERTY AND EQUIPMENT

Property and equipment at December 31, 2022 and 2021 are as follows:

 

 

 

 

2022

 

 

 

2021

 

Land

 

$

9,348

 

 

$

9,992

 

Buildings and improvements

 

 

1,314

 

 

 

1,315

 

Furniture and fixtures

 

 

19,986

 

 

 

18,568

 

Operating equipment

 

 

991,574

 

 

 

869,953

 

 

 

 

 

 

 

 

Total property and equipment

 

 

1,022,222

 

 

 

899,828

 

 

 

 

 

 

 

 

Accumulated depreciation

 

 

(478,312

)

 

 

(444,726

)

 

 

 

 

 

 

 

Property and equipment — net

 

$

543,910

 

 

$

455,102

 

 

Operating equipment of $500 was classified as held for sale, excluded from property and equipment, as of December 31, 2022. Gain or loss on sale of assets, net for the year ended December 31, 2022 includes $8,150 of loss related to the retirement of an asset which is classified as held for sale.

 

Depreciation expense was $46,273, $43,016 and $38,183, for the years ended December 31, 2022, 2021 and 2020, respectively.