Revenue

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

The Company disaggregates its revenue from contracts with customers by those sales recorded over-time and sales recorded at a point in time.

The following table presents the Company’s disaggregated (in thousands):

	Year Ended December 31,
	2022		2021		2020
Over-time revenue	$	1,155,848	$	519,003	$	503,238
Point in time revenue	481,698		334,315		369,424
Total revenue	$	1,637,546	$	853,318	$	872,662

Contract assets consisting of unbilled receivables are recorded within accounts receivable on the consolidated balance sheets on a contract-by-contract basis at the end of the reporting period and consisted of the following (in thousands):

	December 31,
	2022		2021		2020
Unbilled receivables	$	101,513	$	111,224	$	18,073

The Company also receives advances or deposits from its customers, before revenue is recognized, resulting in contract liabilities. The changes in contract liabilities (i.e., deferred revenue) relate to advanced orders and

payments received by the Company. Contract liabilities consisting of deferred revenue recorded on a contract-by-contract basis at the end of each reporting period were as follows (in thousands):

	December 31,
	2022		2021		2020
Deferred revenue	$	178,922	$	99,575	$	149,821

During the years ended December 31, 2022 and 2021, the Company converted $84.7 million and $149.8 million deferred revenue to revenue, respectively, which represented 85% and 100% of the prior years’ deferred revenue balance, respectively.

Bill-and-Hold Arrangement

Revenue recognized for the Company’s ITC related contracts and standalone system component sales are recorded at a point in time and recognized when obligations under the terms of the contract with our customer are satisfied. Generally, this occurs with the transfer of control of the asset, which is typically upon delivery to the customer in line with shipping terms. In certain situations, when product is still in our custody and title and risk of loss has passed to the customer (known as a bill-and-hold arrangement), revenue will be recognized when all the specific requirements for transfer of control under a bill-and-hold arrangement have been met.

In 2022, the Company had one contract with a customer for the sale of goods and services that contained bill-and-hold obligations such as storage, handling and other custodial duties. The related revenue was approximately $13.7 million, which was paid in full as of December 31, 2022 and the product was shipped to the customer in January 2023. The Company had $168.9 million in total revenue with customers for the sale of goods and services that contained bill-and-hold obligations such as storage, handling and other custodial duties for the years ended December 31, 2021.

Remaining Performance Obligations        

As of December 31, 2022, the Company had $719.3 million of remaining performance obligations. The Company expects to recognize revenue on 100% of these performance obligations in the next twelve months.