XML 115 R77.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Share-Based Compensation - Employee Stock Purchase Plan (Details) shares in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Shares available for future grant (in shares) | 0.8
Employee Stock Purchase Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Average weekly hours of work | 20 hours
Service period | 2 years
Stock options authorized to issue to employees (in shares) | 4.1
Shares available for future grant (in shares) | 2.1
Annual earnings withheld to purchase common stock | $ | $ 21,250
Percent of IRS limitation | 85.00%
Maximum fair value of common stock purchased | $ | $ 25,000

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award, Annual Earning, Percent of Tax Limitation + References No definition available. + Details
Name: | hcsg_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualEarningPercentOfTaxLimitation
Namespace Prefix: | hcsg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangement by share based payment award, annual earnings + References No definition available. + Details
Name: | hcsg_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualEarnings
Namespace Prefix: | hcsg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Maximum Value of Shares Per Employee Per Calendar Year + References No definition available. + Details
Name: | hcsg_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumValueOfSharesPerEmployeePerCalendarYear
Namespace Prefix: | hcsg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Average Weekly Hours of Work + References No definition available. + Details
Name: | hcsg_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardRequisiteAverageWeeklyHoursofWork
Namespace Prefix: | hcsg_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |