| Business Combinations - Intangible Assets Acquired (Details) $ in Thousands | 9 Months Ended | 
|---|---|
| Sep. 30, 2021  USD ($) | |
| Statement [Line Items] | |
| Acquisition date fair value | $ 4,015 | 
| Weighted average amortization period | 11 years 2 months 12 days | 
| Physician and customer relationships | |
| Statement [Line Items] | |
| Acquisition date fair value | $ 2,300 | 
| Weighted average amortization period | 15 years | 
| Unpatented technology | |
| Statement [Line Items] | |
| Acquisition date fair value | $ 943 | 
| Weighted average amortization period | 7 years | 
| Non-competition agreements | |
| Statement [Line Items] | |
| Acquisition date fair value | $ 472 | 
| Weighted average amortization period | 5 years | 
| Software | |
| Statement [Line Items] | |
| Acquisition date fair value | $ 300 | 
| Weighted average amortization period | 5 years | 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available. 
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