Annual report pursuant to Section 13 and 15(d)

PROPERTY AND EQUIPMENT.

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PROPERTY AND EQUIPMENT.
 12 Months Ended
Dec. 31, 2017
Property, Plant and Equipment [Abstract]  
PROPERTY AND EQUIPMENT.
5. PROPERTY AND EQUIPMENT.

 

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

 

    December 31,  
    2017     2016  
Facilities and plant equipment   $ 601,156     $ 530,735  
Land     8,970       7,771  
Other equipment, vehicles and furniture     10,189       9,714  
Construction in progress     38,041       29,393  
      658,356       577,613  
Accumulated depreciation     (150,004 )     (112,423 )
    $ 508,352     $ 465,190  

 

Depreciation expense was $38,651,000, $35,441,000 and $23,632,000 for the years ended December 31, 2017, 2016 and 2015, respectively. For the year ended December 31, 2015, the Company recorded an impairment charge of $1,970,000 related to the abandonment of certain accounting and information technology systems following the integration of its PE Central facilities.

 

For the year ended December 31, 2017 and 2016, the Company capitalized interest of $822,000 and $1,307,000, respectively, related to its capital investment activities.