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Related Party Transactions (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Related Party Transactions [Abstract]    
Fees paid to related party firm (less than) $ 120,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty $ 120,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Percentage of fee paid to related party in relation to related party's total revenue (less than) 5.00%hcsg_RelatedPartyTransactionFeesPaidRelatedPartyAsPercentageOfOverallRelatedPartyRevenues 5.00%hcsg_RelatedPartyTransactionFeesPaidRelatedPartyAsPercentageOfOverallRelatedPartyRevenues