Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

Depreciation is calculated using the straight-line method over the estimated depreciable lives of the respective assets as follows:

	Depreciable Lives
Energy Servers	15-21 years
Computers, software and hardware	3-5 years
Machinery and equipment	5-10 years
Furniture and fixtures	3-5 years
Leasehold improvements	1-10 years
Buildings	*

* Lesser of 35 years or the term of the underlying land lease.

Property, plant and equipment, net, consists of the following (in thousands):

	December 31,
	2022		2021
Energy Servers	$	538,912	$	674,799
Machinery and equipment	145,555		110,600
Leasehold improvements	104,528		52,936
Construction-in-progress	72,174		43,544
Buildings	49,240		48,934
Computers, software and hardware	24,608		21,276
Furniture and fixtures	9,581		8,607
	944,598		960,696
Less: accumulated depreciation	(344,184)		(356,590)
	$	600,414	$	604,106