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Organization and Summary of Accounting Policies - Organization (Details) | Sep. 30, 2021 surgical_facility state
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Products And Services [Line Items] |
Number of surgical facilities owned | 127
Number of states in which entity operates | state | 31
Number of surgical facilities owned, majority interest | 90
Number of surgical facilities owned, consolidated | 110
Facilities, Ambulatory Surgery Centers |
Products And Services [Line Items] |
Number of surgical facilities owned | 110
Facilities, Surgical Hospitals |
Products And Services [Line Items] |
Number of surgical facilities owned | 17

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- Definition Number of Surgical Facilities Owned + References No definition available. + Details
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Namespace Prefix: | sgry_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Number of Surgical Facilities Owned, Consolidated + References No definition available. + Details
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Namespace Prefix: | sgry_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Number of Surgical Facilities Owned, Majority Interest + References No definition available. + Details
Name: | sgry_NumberOfSurgicalFacilitiesOwnedMajorityInterest
Namespace Prefix: | sgry_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Products And Services [Line Items] + References No definition available. + Details
Name: | sgry_ProductsAndServicesLineItems
Namespace Prefix: | sgry_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | srt_ProductOrServiceAxis=sgry_FacilitiesAmbulatorySurgeryCentersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ProductOrServiceAxis=sgry_FacilitiesSurgicalHospitalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |