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Balance Sheet Components - Summary of Property Plant and Equipment and Rental Equipment with Associated Accumulated Depreciation (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Property Plant And Equipment [Line Items] |  |
Property and equipment | $ 91,451 | $ 90,595
Accumulated depreciation | 50,819 | 51,669
Property and equipment, net | 40,632 | 38,926
Rental equipment |  |
Property Plant And Equipment [Line Items] |  |
Property and equipment | 58,698 | 59,073
Accumulated depreciation | 31,309 | 33,355
Property and equipment, net | 27,389 | 25,718
Other property and equipment |  |
Property Plant And Equipment [Line Items] |  |
Property and equipment | 32,753 | 31,522
Accumulated depreciation | 19,510 | 18,314
Property and equipment, net | $ 13,243 | $ 13,208

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