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v3.8.0.1

Accrued Insurance Claims (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017
Payables and Accruals [Abstract] |
Percent of liabilities | 30.70%

X
- Definition Percentage of Liabilities From Insurance Plan + References No definition available. + Details
Name: | hcsg_WorkersCompensationPercentOfLiabilities
Namespace Prefix: | hcsg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_PayablesAndAccrualsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration