XML 83 R70.htm IDEA: XBRL DOCUMENT
v3.20.4

Share-Based Compensation - Weighted Average Remaining Grant-Date and Total Fair Values (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Payment Arrangement [Abstract] |  |  |
Weighted average grant-date fair value of restricted stock units granted | $ 24.43 | $ 40.49 | $ 52.06
Total fair value of restricted stock units and restricted shares vested | $ 2,287 | $ 2,399 | $ 1,822

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Options Vested In Period Total Fair Value + References No definition available. + Details
Name: | hcsg_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsVestedInPeriodTotalFairValue
Namespace Prefix: | hcsg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration