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Inventory (Tables)

12 Months Ended

Dec. 31, 2021

Inventory

Schedule of inventory, net of reserves

​

​	​	​	​	​	​	​
​	​	December 31,
(in thousands)	​	2021			2020
Parts and supplies	​	$	63,628	​	$	57,433
Work in progress	​		9,241	​		6,237
Inventory	​	$	72,869	​	$	63,670

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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