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Business Operations - Additional Information (Detail)
9 Months Ended
Mar. 31, 2015
Segment
Business And Organization [Line Items]  
Number of segments 2us-gaap_NumberOfReportableSegments
Healthcare Facilities Segment [Member]  
Business And Organization [Line Items]  
Number of operational areas 3ssy_NumberOfOperationalAreas
/ us-gaap_StatementBusinessSegmentsAxis
= ssy_HealthcareFacilitiesSegmentMember
Number of community hospitals 3ssy_NumberOfCommunityHospitals
/ us-gaap_StatementBusinessSegmentsAxis
= ssy_HealthcareFacilitiesSegmentMember
Number of states 2ssy_NumberOfStates
/ us-gaap_StatementBusinessSegmentsAxis
= ssy_HealthcareFacilitiesSegmentMember
Number of licensed beds at community hospital 183ssy_NumberOfLicensedBedsAtCommunityHospital
/ us-gaap_StatementBusinessSegmentsAxis
= ssy_HealthcareFacilitiesSegmentMember
Number of nursing homes 2ssy_NumberOfNursingHomes
/ us-gaap_StatementBusinessSegmentsAxis
= ssy_HealthcareFacilitiesSegmentMember
Number of licensed beds at nursing center 166ssy_NumberOfLicensedNursingCenterBeds
/ us-gaap_StatementBusinessSegmentsAxis
= ssy_HealthcareFacilitiesSegmentMember
Specialty Pharmacy Segment [Member]  
Business And Organization [Line Items]  
Number of operational areas 4ssy_NumberOfOperationalAreas
/ us-gaap_StatementBusinessSegmentsAxis
= ssy_SpecialtyPharmacySegmentMember