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Inventory (Tables)
 12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory consisted of the following as of December 31, 2019 and 2020 (in thousands):

 

 

 

December 31,

2019

 

 

December 31,

2020

 

Inventory on-hand

 

$

29,370

 

 

$

22,753

 

Inventory in-transit

 

 

6,842

 

 

 

8,829

 

Inventory

 

$

36,212

 

 

$

31,582