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Acquisitions - Narrative (Details) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2021 USD ($) surgical_facility | Sep. 30, 2020 USD ($)
Business Acquisition [Line Items] |  |
Payments for acquisitions, net of cash acquired | $ | $ 101.0 | $ 14.2
Surgical Facilities, New Markets |  |
Business Acquisition [Line Items] |  |
Number of facilities acquired | surgical_facility | 4 |
Surgical Facilities, Existing Markets |  |
Business Acquisition [Line Items] |  |
Number of facilities acquired | surgical_facility | 2 |
Payments for acquisitions, net of cash acquired | $ | $ 101.0 |

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- Definition The number of businesses acquired by the entity during the period. + References No definition available. + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
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