Summary of Significant Accounting Policies - Narrative (Detail) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($) shares	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023	Sep. 30, 2024 USD ($) segment plan shares	Sep. 30, 2023	Dec. 31, 2023 USD ($) shares	Jun. 25, 2021 $ / shares shares
Significant Accounting Policies [Line Items]
Cash and cash equivalents | $	$ 56,396	$ 56,396		$ 56,396		$ 75,502
Impairment of long lived assets | $				12,300
Capitalized cost | $	$ 31,800	$ 31,800		$ 31,800
Exercise price (in dollars per share) | $ / shares							$ 11.50
Number of warrants or rights outstanding (in shares) | shares	35,476,627	35,476,627		35,476,627		35,476,627
Percent of occurrence of a tender offer or exchange of our stockholders	50.00%	50.00%		50.00%
Number of equity incentive plans (in plans) | plan				3
Number of operating segments (in segments) | segment				1
Total assets | $	$ 399,555	$ 399,555		$ 399,555		$ 461,834
September 2024 Workforce Reduction
Significant Accounting Policies [Line Items]
Workforce reduction percentage	28.00%
Outside United States
Significant Accounting Policies [Line Items]
Total assets | $	$ 216,400	$ 216,400		$ 216,400		$ 206,100
Public Warrants
Significant Accounting Policies [Line Items]
Number of warrants assumed (in shares) | shares							24,149,960
Number of warrants or rights outstanding (in shares) | shares	24,149,960	24,149,960		24,149,960
Private Placement Warrants
Significant Accounting Policies [Line Items]
Number of warrants assumed (in shares) | shares							11,326,667
Number of warrants or rights outstanding (in shares) | shares	11,326,667	11,326,667		11,326,667
Patents
Significant Accounting Policies [Line Items]
Intangible assets weighted average useful life				2 years 7 months 28 days
Minimum
Significant Accounting Policies [Line Items]
Payments due (in days)				30 days
Intangible assets, estimated useful lives	7 years	7 years		7 years
Maximum
Significant Accounting Policies [Line Items]
Payments due (in days)				90 days
Intangible assets, estimated useful lives	15 years	15 years		15 years
Top Two Customers | Revenue Benchmark | Product Concentration Risk
Significant Accounting Policies [Line Items]
Concentration risk, percentage				92.00%		67.00%
Top Two Customers | Revenue Benchmark | Customer Concentration Risk
Significant Accounting Policies [Line Items]
Concentration risk, percentage		100.00%	87.00%	94.00%	86.00%