Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of expense for allocation of cost of tangible asset over its useful life directly used in production of good and rendering of service.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Property, plant and equipment
Property, plant, and equipment, gross	$ 135,915		$ 135,915		$ 96,735
Less: accumulated depreciation	(25,440)		(25,440)		(22,186)
Property, plant, and equipment, net	110,475		110,475		74,549
Depreciation expense	1,600	$ 900	3,300	$ 1,800
Land
Property, plant and equipment
Property, plant, and equipment, gross	1,165		1,165		1,165
Leasehold Improvements
Property, plant and equipment
Property, plant, and equipment, gross	1,401		1,401		1,121
Software, machinery and equipment
Property, plant and equipment
Property, plant, and equipment, gross	$ 133,349		$ 133,349		$ 94,449