Leases - Components of Right-of-us Assets and Liabilities Related to Leases (Details) $ in Millions	9 Months Ended
Sep. 30, 2020 USD ($)
Leases [Abstract]
Increase in right-of-use operating lease assets	$ 26.4
Increase in operating lease liabilities	$ 26.4

Increase (Decrease) In Operating Lease, Right-of-Use Asset

No definition available.

Name:	sgry_IncreaseDecreaseInOperatingLeaseRightOfUseAsset
Namespace Prefix:	sgry_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration