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Property, plant and equipment
 9 Months Ended
Sep. 30, 2018
Property, plant and equipment  
Property, plant and equipment

5            Property, plant and equipment

 

The following table presents the Company’s property, plant and equipment as of September 30, 2018, and December 31, 2017:

 

 

 

 

 

 

 

 

 

 

September 30, 

 

December 31,

 

    

2018

    

2017

 

 

in thousands

Leasehold improvements

 

$

32,328

 

$

32,297

Laboratory equipment

 

 

16,598

 

 

15,976

Office equipment

 

 

2,273

 

 

2,304

Construction-in-progress

 

 

901

 

 

745

Total property, plant, and equipment

 

 

52,100

 

 

51,322

Less accumulated depreciation

 

 

(21,298)

 

 

(17,041)

Property, plant and equipment, net

 

$

30,802

 

$

34,281

 

Total depreciation expense was $1.7 million and $4.7 million during the three and nine months ended September 30, 2018, respectively, compared to $1.7 million and $5.1 million during the same periods in 2017.