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Basis of Reporting - Additional Information (Detail)	Sep. 30, 2012
Basis of Presentation [Line Items]
Number of wholly-owned subsidiaries operated by Company	2
Linen supplies amortization period (in months)	24

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- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Linen supplies amortization period.

+ References

No definition available.

+ Details

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Namespace Prefix:	hcsg_
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Period Type:	instant

X

- Definition

Number of wholly-owned subsidiaries operated by Company.

+ References

No definition available.

+ Details

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Namespace Prefix:	hcsg_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant