Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Inventory

The components of inventory consist of the following (in thousands):

	December 31,
	2022		2021
Raw materials	$	165,446	$	80,809
Work-in-progress	44,660		31,893
Finished goods	58,288		30,668
	$	268,394	$	143,370

Schedule of Prepaid Expense and Other Current Assets

Prepaid expenses and other current assets consist of the following (in thousands):

	December 31,
	2022		2021
Receivables from employees	$	6,553	$	5,463
Prepaid workers compensation	5,536		5,330
Prepaid Managed Services	4,405		2,480
Prepaid hardware and software maintenance	4,290		3,494
Tax receivables	3,676		1,518
Deposits made	1,409		817
Prepaid deferred commissions	1,002		724
Other prepaid expenses and other current assets	16,772		10,835
	$	43,643	$	30,661

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

Schedule of Other Long-Term Assets

Other long-term assets consist of the following (in thousands):

	December 31,
	2022		2021
Deferred commissions	$	8,320	$	7,569
Long-term lease receivable	8,076		7,953
Prepaid insurance	4,047		9,534
Deposits made	2,672		1,923
Prepaid Managed Services	2,373		3,010
Deferred tax asset	1,151		955
Investments in subsidiaries	—		1,819
Prepaid and other long-term assets	13,566		8,310
	$	40,205	$	41,073

Schedule of Accrued Warranty

Accrued warranty liabilities consist of the following (in thousands):

	December 31,
	2022		2021
Product performance	$	16,901	$	10,785
Product warranty	431		961
	$	17,332	$	11,746

Changes in the product warranty and product performance liabilities were as follows (in thousands):

Balances at December 31, 2020	$	10,154
Accrued warranty, net	11,049
Warranty expenditures during the year	(9,457)
Balances at December 31, 2021	$	11,746
Accrued warranty, net	17,719
Warranty expenditures during the year	(12,133)
Balances at December 31, 2022	$	17,332

Schedule of Accrued Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

	December 31,
	2022		2021
Compensation and benefits	$	48,156	$	38,222
General invoice and purchase order accruals	44,010		23,706
Delaware grant	9,495		—
Accrued installation	7,905		13,968
Sales-related liabilities	7,147		6,040
Sales tax liabilities	6,172		1,491
PPA IV Upgrade financing obligations	6,076		—
Accrued legal expenses	4,403		1,765
Interest payable	3,128		2,159
Current portion of derivative liabilities	2,596		6,059
Accrued consulting expenses	1,390		1,731
Provision for income tax	1,140		479
Finance lease liability	1,024		863
Option to acquire a variable number of shares of Class A Common Stock	—		13,200
Other	1,541		4,455
	$	144,183	$	114,138