XML 51 R74.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Narrative) (Details) | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 31, 2019 USD ($) | Dec. 28, 2019 USD ($) hour shares | Dec. 29, 2018 USD ($) | Mar. 31, 2016 USD ($) | May 31, 2007 shares | Jan. 01, 2007 shares
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |
Derivative asset |  |  | $ 300,000 |  |  |
Accumulated other comprehensive income (loss) |  | $ (8,073,000) | $ (3,599,000) |  |  |
Term of employment agreement |  | 2 years |  |  |  |
Certain officers |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |
Change in control percentage |  | 20.00% |  |  |  |
Percent of board members |  | 0.3333 |  |  |  |
Term of employment agreement |  | 2 years |  |  |  |
Number of times annual salary |  | 200.00% |  |  |  |
Corporation's Chairman, President and CEO |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |
Number of times annual salary |  | 300.00% |  |  |  |
Director plan |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |
Available for future issuance (shares) | shares |  |  |  |  | 300,000 |
Purchase Plan |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |
Available for future issuance (shares) | shares |  |  |  |  |  | 800,000
Rights to purchase stock, minimum working hours per week | hour |  | 20 |  |  |  |
Rights to purchase stock, minimum working months per year |  | 5 months |  |  |  |
Price of repurchased stock as percent of closing price on the exercise date |  | 85.00% |  |  |  |
Maximum amount fair value for purchase of common stock |  | $ 25,000 |  |  |  |
Shares available for future issuance (shares) | shares |  | 593,223 |  |  |  |
Interest rate swap |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |
Derivative notional amount | $ 75,000,000 |  |  | $ 150,000,000 |  |
Fixed interest rate | 1.42% |  |  | 1.29% |  |
Proceeds from derivative instrument | $ 500,000 |  |  |  |  |
Gain (loss) on derivative | $ 500,000 |  |  |  |  |
Accumulated other comprehensive income (loss) |  | $ 500,000 |  |  |  |
Common Stock |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |
Remaining authorized repurchase amount |  | $ 164,700,000 |  |  |  |

X
- Definition Maximum Amount Fair Value for Purchase of Common Stock + References No definition available. + Details
Name: | hni_MaximumAmountFairValueForPurchaseOfCommonStock
Namespace Prefix: | hni_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Price of Repurchased Stock as Percent of Closing Price on the Exercise Date + References No definition available. + Details
Name: | hni_PriceOfRepurchasedStockAsPercentOfClosingPriceOnExerciseDate
Namespace Prefix: | hni_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Proceeds From Derivative Instrument, Operating Activities + References No definition available. + Details
Name: | hni_ProceedsFromDerivativeInstrumentOperatingActivities
Namespace Prefix: | hni_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Rights to Purchase Stock, Minimum Working Hours per Week + References No definition available. + Details
Name: | hni_RightsToPurchaseStockMinimumWorkingHoursPerWeek
Namespace Prefix: | hni_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Rights to Purchase Stock, Minimum Working Months per Year + References No definition available. + Details
Name: | hni_RightsToPurchaseStockMinimumWorkingMonthsPerYear
Namespace Prefix: | hni_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Shareholders' Equity [Line Items] + References No definition available. + Details
Name: | hni_ScheduleOfShareholdersEquityLineItems
Namespace Prefix: | hni_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Supplemental Unemployment Benefits, Change in Control, Change in Control Percentage + References No definition available. + Details
Name: | hni_SupplementalUnemploymentBenefitsChangeinControlChangeinControlPercentage
Namespace Prefix: | hni_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Supplemental Unemployment Benefits, Change in Control, Percent of Board Members Threshold Not Recommended by Three Fourths of Incumbent Board + References No definition available. + Details
Name: | hni_SupplementalUnemploymentBenefitsChangeinControlPercentofBoardMembersThresholdNotRecommendedbyThreeFourthsofIncumbentBoard
Namespace Prefix: | hni_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Supplemental Unemployment Benefits, Change in Control, Salary Multiplier + References No definition available. + Details
Name: | hni_SupplementalUnemploymentBenefitsChangeinControlPercentofSupplementalUnemploymentBenefitsChangeinControlSalaryMultiplier
Namespace Prefix: | hni_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Supplemental Unemployment Benefits, Change in Control, Term of Employment Agreement + References No definition available. + Details
Name: | hni_SupplementalUnemploymentBenefitsChangeinControlTermofEmploymentAgreement
Namespace Prefix: | hni_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109974929&loc=SL110061190-113977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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
- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_TitleOfIndividualAxis=srt_OfficerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=hni_CorporationsChairmanPresidentandCEOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=hni_DirectorPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=hni_PurchasePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |