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Segment Information (Percentage Contribution Of Major Customer In Revenue) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Percentage of Revenue from a Major Customer	9.00%	11.00%	9.00%	11.00%
Amounts due from Major Customer					less than 1% of our accounts receivable balance
Percentage of Revenue and Income Earned by Housekeeping in one Geographic Segment			99.00%
Housekeeping Services [Member]
Percentage of Revenue from a Major Customer	11.00%	11.00%	11.00%	11.00%
Dietary Services [Member]
Percentage of Revenue from a Major Customer	5.00%	9.00%	6.00%	9.00%

X

- Definition

Amounts due from Major Customer.

+ Details

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X

- Definition

Percentage of revenue and income earned in one geographic segment.

+ Details

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Namespace Prefix:	hcsg
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of Revenue from a Major Customer.

+ Details

Name:	hcsg_PercentageOfRevenueFromMajorCustomer
Namespace Prefix:	hcsg
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration