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Assets Manufactured for Internal Use, net (Tables)
12 Months Ended
Dec. 31, 2020
Assets Manufactured for Internal Use, net  
Schedule of components of assets manufactured for internal use

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December 31,

 

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2020

    

2019

 

​

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(in thousands)

 

Internal use assets

​

$

62,462

​

$

56,775

​

Construction in process

​

 

156

​

 

5,242

​

Total cost

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62,618

​

 

62,017

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Accumulated depreciation

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(24,155)

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(19,259)

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Assets manufactured for internal use, net

​

$

38,463

​

$

42,758

​