Balance Sheet Details (Tables)

3 Months Ended

Mar. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Schedule of Inventories

Inventories

	March 31, 2022 (As Restated)		December 31, 2021
Raw materials	$	45,527	$	34,512
Work in process		1,216		1,427
Finished goods		23,342		20,954
Total inventories	$	70,085	$	56,893

Schedule of Property, Plant and Equipment, Net

Property, plant and equipment

	March 31, 2022			December 31, 2021
Property, plant and equipment, net:
Machinery and equipment	$	17,090		$	14,278
Leasehold improvements		5,251			5,219
Computers and software		3,278			3,217
Furniture and fixtures		1,726			1,771
Construction in progress and other		1,052			2,937
		28,397			27,422
Less: accumulated depreciation and amortization		(17,971	)		(17,394	)
Less: government grants		(149	)		(186	)
Total property, plant and equipment, net	$	10,277		$	9,842

Summary of Product Warranty Liability

The Company accrues warranty costs based on historical trends for the expected material and labor costs to provide warranty services. The Company's standard warranty period is one year from the date of shipment with the ability for customers to purchase an extended warranty of up to five years from the date of shipment. The following table summarizes the activity related to the product warranty liability:

	Three Months Ended March 31,
	2022			2021
Balance at beginning of period	$	1,981		$	1,522
Charged to cost of revenue		121			269
Claims and settlements		(149	)		(267	)
Foreign currency exchange impact		(17	)		56
Balance at end of period	$	1,936		$	1,580

Summary of Contract Assets and Contract Liabilities Related to Contracts with Customers

The opening and closing balances of current and long-term contract assets and contract liabilities related to contracts with customers are as follows:

	Contract assets			Contract liabilities
December 31, 2021	$	2,184		$	9,135
March 31, 2022 (As Restated)		902			11,387
Increase (decrease) (As Restated)	$	(1,282	)	$	2,252