XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.20.2

Allowance for Doubtful Accounts - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Jan. 01, 2020 | Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
One-time adjustment | $ 83,986 | $ 83,986 | $ 92,280 |  | $ 52,393
Interest income | $ 400 | $ 1,000 |  |  |
Cumulative Impact from Adopting ASC 326 Guidance |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
One-time adjustment |  |  |  | $ 42,236 |

X
- Definition Accounts Receivable and Financing Receivable, Allowance for Credit Loss + References No definition available. + Details
Name: | hcsg_AccountsReceivableAndFinancingReceivableAllowanceForCreditLoss
Namespace Prefix: | hcsg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financing Receivable, Interest Income + References No definition available. + Details
Name: | hcsg_FinancingReceivableInterestIncome
Namespace Prefix: | hcsg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |