Other Employee Benefit Plans (Details) (Maximum [Member])	12 Months Ended
Dec. 31, 2012
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of employees contribution	(15.00%)

Defined Benefit Plan Maximum Percentage Of Employees Contribution.

No definition available.

Name:	hcsg_DefinedBenefitPlanMaximumPercentageOfEmployeesContribution
Namespace Prefix:	hcsg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration