Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) ¥ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) segment bank customer	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) bank customer	Sep. 30, 2023 USD ($)	Sep. 30, 2024 CNY (¥) bank customer	Jan. 16, 2024 USD ($)	Jan. 16, 2024 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 26, 2022 USD ($)
Accounting Policies [Line Items]
Number of operating segments | segment	1
Number of reportable segments | segment	1
Cash, cash equivalents, restricted cash, and restricted cash equivalents	$ 162,303,000	$ 163,629,000	$ 162,303,000	$ 163,629,000				$ 167,630,000	$ 299,500,000
Cash, FDIC insured amount	250,000		250,000
Restricted cash	$ 30,816		$ 30,816					331,000
Restricted cash equivalents		300,000		300,000
Number of bank guarantees | bank	2		2		2
Number of customers | customer	2		2		2
Security warranty obligation, term	12 months		12 months		12 months
Upfront and payment terms			30 days
Total revenue, net	$ 51,500,000	48,000,000	$ 142,977,000	134,782,000
Product warranty obligation, term	1 year		1 year		1 year
Common stock, value, issued	$ 130,000		$ 130,000					$ 131,000
Advertising, marketing and media expenses	800,000	500,000	3,000,000.0	$ 2,700,000
Building | Revolving Credit Facility | Line of Credit
Accounting Policies [Line Items]
Debt instrument, collateral amount	2,800,000		2,800,000		¥ 20.0	$ 2,800,000	¥ 20.0
At Market Offering
Accounting Policies [Line Items]
Deferred offering costs	700,000		700,000
2022 Sales Agreement
Accounting Policies [Line Items]
Deferred offering costs	700,000		$ 700,000
2022 Sales Agreement | At Market Offering
Accounting Policies [Line Items]
Common stock, value, issued										$ 150,000,000
Bill-and-hold arrangements
Accounting Policies [Line Items]
Total revenue, net	$ 0.0	$ 2,800,000
Minimum
Accounting Policies [Line Items]
Trade accounts receivable			30 days
Delivery and payment terms	30 days		30 days		30 days
Service contracts terms			1 year
Supplier finance program, payment timing, period	30 days		30 days		30 days
Maximum
Accounting Policies [Line Items]
Trade accounts receivable			45 days
Delivery and payment terms	45 days		45 days		45 days
Service contracts terms			3 years
Supplier finance program, payment timing, period	90 days		90 days		90 days
Maximum | 2022 Sales Agreement
Accounting Policies [Line Items]
Aggregate compensation payable percentage										0.03
Maximum | 2022 Sales Agreement | At Market Offering
Accounting Policies [Line Items]
Aggregate compensation payable percentage										0.03