XML 76 R61.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Stock-Based Compensation - Share-based Payment Award, Options, Grants in Period (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Oct. 01, 2022 | Oct. 02, 2021
Restricted stock units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Fair value | $ 7.0 | $ 15.9
Performance stock units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Fair value | $ 6.2 | $ 6.1

X
- Definition Share-Based Compensation Arrangement By Share-Based Payment Award, Grants In Period, Fair Value + References No definition available. + Details
Name: | hni_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodFairValue
Namespace Prefix: | hni_
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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