Financial Statement Components - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2023	Dec. 31, 2023
Goodwill [Roll Forward]
Beginning balance		$ 18,816
Impairment of goodwill related to Freedom Photonics		(12,489)
Ending balance	$ 7,390	7,390
Freedom Photonics
Goodwill [Roll Forward]
Goodwill related to acquisition of Seagate’s lidar business (see Note 3)		1,063
Autonomy Solutions
Goodwill [Roll Forward]
Beginning balance		687
Impairment of goodwill related to Freedom Photonics		0
Ending balance	1,750	1,750
Autonomy Solutions \| Freedom Photonics
Goodwill [Roll Forward]
Goodwill related to acquisition of Seagate’s lidar business (see Note 3)		1,063
ATS
Goodwill [Roll Forward]
Beginning balance		18,129
Impairment of goodwill related to Freedom Photonics	(12,500)	(12,489)
Ending balance	$ 5,640	5,640
ATS \| Freedom Photonics
Goodwill [Roll Forward]
Goodwill related to acquisition of Seagate’s lidar business (see Note 3)		$ 0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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