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Stock Incentive Plans - Summary of Expense Relating to Employee and Nonemployee Stock-Based Payment Awards from Stock Options and RSUs (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Share based compensation expense | $ 13,754 | $ 10,634
Cost of testing services |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Share based compensation expense | 479 | 19
Cost of product |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Share based compensation expense | 360 | 128
Cost of patient and digital solutions |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Share based compensation expense | 402 | 192
Research and development |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Share based compensation expense | 1,962 | 2,190
Sales and marketing |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Share based compensation expense | 3,737 | 3,123
General and administrative |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Share based compensation expense | $ 6,814 | $ 4,982

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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