HNI (HNI) 10-K 26 Feb 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 29, 2018	Feb. 01, 2019	Jun. 30, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	HNI CORP
Entity Central Index Key	48,287
Current Fiscal Year End Date	--12-29
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Dec. 29, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Common Stock, Share Outstanding		43,492,622
Entity Public Float			$ 1,159,656,498

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 2,257,895	$ 2,175,882	$ 2,203,489
Cost of sales	1,422,857	1,391,894	1,368,476
Gross profit	835,038	783,988	835,013
Selling and administrative expenses	691,140	671,831	667,744
(Gain) loss on sale, disposal, and license of assets	0	(1,949)	22,572
Restructuring and impairment charges	15,725	37,416	11,005
Operating income	128,173	76,690	133,692
Interest income	579	297	305
Interest expense	10,027	6,375	5,086
Total	118,725	70,612	128,911
Income tax expense (benefit)	25,399	(19,286)	43,273
Net income	93,326	89,898	85,638
Less: Net income (loss) attributable to non-controlling interest	(51)	103	61
Net income attributable to HNI Corporation	$ 93,377	$ 89,795	$ 85,577
Average number of common shares outstanding – basic (shares)	43,639,003	43,839,004	44,413,941
Net income attributable to HNI Corporation per common share – basic (in dollars per share)	$ 2.14	$ 2.05	$ 1.93
Average number of common shares outstanding - diluted (shares)	44,327,602	44,839,813	45,502,219
Net income attributable to HNI Corporation per common share – diluted (in dollars per share)	$ 2.11	$ 2	$ 1.88
Foreign currency translation adjustments	$ (3,004)	$ 1,219	$ (1,510)
Change in unrealized gains (losses) on marketable securities, net of tax	(24)	(27)	(103)
Change in pension and post-retirement liability, net of tax	2,701	(463)	339
Change in derivative financial instruments, net of tax	339	660	1,460
Other comprehensive income (loss), net of tax	12	1,389	186
Comprehensive income	93,338	91,287	85,824
Less: Comprehensive income (loss) attributable to non-controlling interest	(51)	103	61
Comprehensive income attributable to HNI Corporation	$ 93,389	$ 91,184	$ 85,763

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Current Assets:
Cash and cash equivalents	$ 76,819	$ 23,348
Short-term investments	1,327	2,015
Receivables	255,207	258,551
Inventories	157,178	155,683
Prepaid expenses and other current assets	41,352	49,283
Total Current Assets	531,883	488,880
Property, Plant, and Equipment:
Land and land improvements	28,377	28,593
Buildings	290,263	306,137
Machinery and equipment	565,884	556,571
Construction in progress	28,443	39,788
Property, Plant, and Equipment	912,967	931,089
Less accumulated depreciation	528,034	540,768
Net Property, Plant, and Equipment	384,933	390,321
Goodwill and Other Intangible Assets	463,290	490,892
Deferred Income Taxes	1,569	193
Other Assets	20,169	21,264
Total Assets	1,401,844	1,391,550
Current Liabilities:
Accounts payable and accrued expenses	428,865	450,128
Current maturities of long-term debt	679	36,648
Current maturities of other long-term obligations	4,764	2,927
Total Current Liabilities	434,308	489,703
Long-Term Debt	249,355	240,000
Other Long-Term Liabilities	72,767	70,409
Deferred Income Taxes	82,155	76,861
HNI Corporation shareholders' equity:
Preferred stock - $1 par value, authorized 2,000 shares, no shares outstanding	0	0
Common stock	43,582	43,354
Additional paid-in capital	18,041	7,029
Retained earnings	504,909	467,296
Accumulated other comprehensive income (loss)	(3,599)	(3,611)
Total HNI Corporation shareholders' equity	562,933	514,068
Non-controlling interest	326	509
Total Equity	563,259	514,577
Total Liabilities and Equity	$ 1,401,844	$ 1,391,550

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 29, 2018	Dec. 30, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (shares)	2,000,000	2,000,000
Preferred stock, shares outstanding (shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (shares)	200,000,000	200,000,000
Common stock, shares outstanding (shares)	43,582,000	43,354,000

CONSOLIDATED STATEMENTS OF EQUI

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest
Beginning Balance at Jan. 02, 2016	$ 477,299	$ 44,158	$ 4,407	$ 433,575	$ (5,186)	$ 345
Comprehensive income:
Net income (loss)	85,638			85,577		61
Other comprehensive income (loss), net of tax	186				186
Change in ownership of non-controlling interest	(89)			(89)
Cash dividends	(48,495)			(48,495)
Common shares – treasury:
Shares purchased	(55,825)	(1,082)	(45,699)	(9,044)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	42,295	1,003	41,292
Ending Balance at Dec. 31, 2016	501,009	44,079	0	461,524	(5,000)	406
Comprehensive income:
Net income (loss)	89,898			89,795		103
Other comprehensive income (loss), net of tax	1,389				1,389
Change in ownership of non-controlling interest	0
Cash dividends	(49,557)			(49,557)
Common shares – treasury:
Shares purchased	(58,887)	(1,463)	(22,958)	(34,466)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	30,725	738	29,987
Ending Balance at Dec. 30, 2017	514,577	43,354	7,029	467,296	(3,611)	509
Comprehensive income:
Net income (loss)	93,326			93,377		(51)
Other comprehensive income (loss), net of tax	12				12
Change in ownership of non-controlling interest	(175)			(43)		(132)
Cash dividends	(51,085)			(51,085)
Common shares – treasury:
Shares purchased	(29,424)	(755)	(24,033)	(4,636)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	36,028	983	35,045
Ending Balance at Dec. 29, 2018	$ 563,259	$ 43,582	$ 18,041	$ 504,909	$ (3,599)	$ 326

CONSOLIDATED STATEMENTS OF EQ_2

CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends per share (dollars per share)	$ 1.170	$ 1.130	$ 1.090

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Net Cash Flows From (To) Operating Activities:
Net income (loss)	$ 93,326	$ 89,898	$ 85,638
Non-cash items included in net income:
Depreciation and amortization	74,788	72,872	68,947
Other post-retirement and post-employment benefits	1,767	1,592	1,643
Stock-based compensation	7,317	7,750	8,141
Excess tax benefits from stock-based compensation	0	0	(2,713)
Deferred income taxes	3,197	(33,606)	20,495
(Gain) loss on sale, retirement, license, and impairment of long-lived assets and intangibles, net	16,264	30,892	28,868
Amortization of deferred gain on sale leaseback transaction	(400)	0	0
Other – net	(1,336)	(1,949)	4,523
Net increase (decrease) in operating assets and liabilities, net of acquisitions and divestitures	(10,729)	(29,409)	17,430
Increase (decrease) in other liabilities	2,236	(4,891)	(9,610)
Net cash flows from (to) operating activities	186,430	133,149	223,362
Net Cash Flows From (To) Investing Activities:
Capital expenditures	(55,648)	(109,243)	(93,425)
Proceeds from sale and license of property, plant, equipment, and intangibles	23,767	9,009	1,055
Capitalized software	(8,048)	(18,148)	(26,159)
Acquisition spending, net of cash acquired	(2,850)	(898)	(34,302)
Purchase of investments	(2,676)	(3,451)	(8,724)
Sales or maturities of investments	3,100	3,197	8,619
Other – net	1,135	1,510	(90)
Net cash flows from (to) investing activities	(41,220)	(118,024)	(153,026)
Net Cash Flows From (To) Financing Activities:
Payments of note and long-term debt and other financing	(352,727)	(274,343)	(594,547)
Proceeds from long-term debt	323,075	339,337	611,986
Dividends paid	(51,085)	(49,557)	(48,495)
Purchase of HNI Corporation common stock	(30,452)	(57,505)	(55,825)
Proceeds from sales of HNI Corporation common stock	19,606	14,224	21,596
Withholding related to net share settlements of equity based awards	(156)	(245)	0
Excess tax benefits from stock-based compensation	0	0	2,713
Net cash flows from (to) financing activities	(91,739)	(28,089)	(62,572)
Net increase (decrease) in cash and cash equivalents	53,471	(12,964)	7,764
Cash and cash equivalents at beginning of year	23,348	36,312	28,548
Cash and cash equivalents at end of year	$ 76,819	$ 23,348	$ 36,312

Nature of Operations

Nature of Operations	12 Months Ended
	Dec. 29, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Nature of Operations HNI Corporation with its subsidiaries (the "Corporation") is a provider of office furniture and hearth products. Both industries are reportable segments; however, the Corporation’s office furniture business is its principal line of business. Refer to "Note 17. Reportable Segment Information" in the Notes to Consolidated Financial Statements for further information. Office furniture products include panel-based and freestanding furniture systems, seating, storage, and tables. These products are sold primarily through a national system of independent dealers, wholesalers, and office product distributors but also directly to end-user customers and federal, state, and local governments. Hearth products include a full array of gas, wood, and pellet burning fireplaces, inserts, stoves, facings, and accessories. These products are sold through a national system of independent dealers and distributors, as well as Corporation-owned distribution and retail outlets. The Corporation’s products are marketed predominantly in the United States and Canada. The Corporation exports select products through its export subsidiary to a limited number of markets outside North America, principally the Middle East, Mexico, Latin America, and the Caribbean. The Corporation also manufactures and markets office furniture in Asia, primarily China and India. Fiscal year-end – The Corporation follows a 52/53 -week fiscal year, which ends on the Saturday nearest December 31. Fiscal year 2018 ended on December 29, 2018 , fiscal year 2017 ended on December 30, 2017 , and fiscal year 2016 ended on December 31, 2016 . The financial statements for fiscal years 2018, 2017, and 2016 are on a 52-week basis. A 53-week year occurs approximately every sixth year.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 29, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Principles of Consolidation The consolidated financial statements include the accounts and transactions of the Corporation and its subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. Cash, Cash Equivalents, and Investments Cash and cash equivalents generally consist of cash and money market accounts. The fair value approximates the carrying value due to the short duration of the securities. These securities have original maturity dates not exceeding three months. The Corporation has short-term investments with maturities of less than one year and investments with maturities greater than one year included in "Other Assets" in the Consolidated Balance Sheets. Management classifies investments in marketable securities at the time of purchase and reevaluates such classification at each balance sheet date. Debt securities, including government and corporate bonds, are classified as available-for-sale and stated at current market value with unrealized gains and losses included as a separate component of equity, net of any related tax effect. The specific identification method is used to determine realized gains and losses on the trade date. Cash, cash equivalents, and investments consisted of the following (in thousands): December 29, 2018 December 30, 2017 Cash and cash equivalents Short-term investments Long-term investments Cash and cash equivalents Short-term investments Long-term investments Available-for-sale securities: Debt securities — 1,327 10,677 — 2,015 10,479 Cash and money market accounts 76,819 — — 23,348 — — Total $ 76,819 $ 1,327 $ 10,677 $ 23,348 $ 2,015 $ 10,479 The following table summarizes the amortized cost basis of the debt securities (in thousands): December 29, 2018 December 30, 2017 Amortized cost basis of debt securities $ 12,202 $ 12,660 Immaterial unrealized gains and losses are recorded in "Accumulated other comprehensive income (loss)" in the Consolidated Balance Sheets for these debt securities. Receivables The allowance for doubtful accounts is developed based on several factors including overall customer credit quality, historical write-off experience, and specific account analyses projecting the ultimate collectability of the account. As such, these factors may change over time causing the allowance level to adjust accordingly. The following table summarizes the change in the allowance for doubtful accounts (in thousands): Balance at beginning of period Adjustments to allowance Amounts written off, net of recoveries and other adjustments Divestitures Balance at end of period Year ended December 29, 2018 $ 1,904 $ 2,440 $ 477 $ — $ 3,867 Year ended December 30, 2017 $ 2,140 $ 846 $ 1,082 $ — $ 1,904 Year ended December 31, 2016 $ 4,287 $ (357 ) $ 1,598 $ 192 $ 2,140 Inventories The Corporation values its inventory at the lower of cost or net realizable value. Inventories included in the Consolidated Balance Sheets consisted of the following (in thousands): December 29, 2018 December 30, 2017 Finished products $ 97,398 $ 101,715 Materials and work in process 94,161 81,202 Last-in,first-out ("LIFO") allowance (34,381 ) (27,234 ) Total inventories $ 157,178 $ 155,683 Inventory valued by the LIFO costing method 81.40 % 83.36 % During 2018, inventory quantities were reduced at certain reporting units. This reduction resulted in a liquidation of LIFO inventory quantities carried at higher or lower costs prevailing in prior years as compared with the cost of current year purchases, the effect of which decreased cost of goods sold by approximately $0.5 million in 2018. There was no LIFO decrement in 2017. If the FIFO method had been in use, inventories would have been $34.4 million and $27.2 million higher than reported as of December 29, 2018 and December 30, 2017 , respectively. Property, Plant, and Equipment Property, plant, and equipment are carried at cost. Expenditures for repairs and maintenance are expensed as incurred. Major improvements that materially extend the useful lives of the assets are capitalized. Depreciation has been computed using the straight-line method over estimated useful lives: land improvements, 10 – 20 years; buildings, 10 – 40 years; and machinery and equipment, 3 – 12 years. Total depreciation expense was as follows (in thousands): 2018 2017 2016 Depreciation expense $ 51,063 $ 56,494 $ 57,171 Long-Lived Assets The Corporation evaluates long-lived assets for indicators of impairment as events or changes in circumstances occur indicating that an impairment risk may be present. The judgments regarding the existence of impairment are based on business and market conditions, operational performance, and estimated future cash flows. If the carrying value of a long-lived asset is considered impaired, an impairment charge is recorded to adjust the asset to its estimated fair value. Asset impairment charges associated with the Corporation’s long-lived assets are discussed in "Note 4. Restructuring and Impairment Charges" in the Notes to Consolidated Financial Statements. Goodwill and Other Intangible Assets The Corporation evaluates its goodwill for impairment on an annual basis during the fourth quarter or whenever indicators of impairment exist. Asset impairment charges associated with the Corporation’s goodwill impairment testing are discussed in "Note 7. Goodwill and Other Intangible Assets" in the Notes to Consolidated Financial Statements. The Corporation reviews goodwill at the reporting unit level within its office furniture and hearth products operating segments. These reporting units constitute components for which discrete financial information is available and regularly reviewed by segment management. The accounting standards for goodwill permit entities to first assess qualitative factors to determine whether it is more likely than not the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform a quantitative goodwill impairment test. If the quantitative test is required, the Corporation estimates the fair value of its reporting units. In estimating the fair value, the Corporation relies on an average of the income approach and the market approach. This estimated fair value is compared to the carrying value of the reporting unit and an impairment is recorded if the estimate is less than the carrying value. In the income approach, the estimate of fair value of each reporting unit is based on management’s projection of revenues, gross margin, operating costs, and cash flows considering historical and estimated future results, general economic and market conditions, as well as the impact of planned business and operational strategies. The valuations employ present value techniques to measure fair value and consider market factors. In the market approach, the Corporation utilizes the guideline company method, which involves calculating valuation multiples based on operating data from guideline publicly-traded companies. These multiples are then applied to the operating data for the reporting units and adjusted for factors similar to those used in the discounted cash flow analysis. Management believes the assumptions used for the impairment test are consistent with those utilized by a market participant in performing similar valuations of its reporting units. Management bases its fair value estimates on assumptions they believe to be reasonable at the time, but such assumptions are subject to inherent uncertainty. Actual results may differ from those estimates. Accounts Payable and Accrued Expenses Accounts payable and accrued expenses are reflected in the Consolidated Balance Sheets and were as follows (in thousands): December 29, 2018 December 30, 2017 Trade accounts payable $ 221,395 $ 235,577 Compensation 52,227 47,277 Profit sharing and retirement expense 28,300 30,884 Marketing expenses 36,529 41,751 Freight 13,892 13,121 Other accrued expenses 76,522 81,518 $ 428,865 $ 450,128 Product Warranties The Corporation issues certain warranty policies on its office furniture and hearth products that provide for repair or replacement of any covered product or component that fails during normal use because of a defect in design, materials, or workmanship. Allowances have been established for the anticipated future costs associated with the Corporation's warranty programs. A warranty allowance is determined by recording a specific allowance for known warranty issues and an additional allowance for unknown claims expected to be incurred based on historical claims experience. Actual claims incurred could differ from the original estimates, requiring adjustments to the allowance. Activity associated with warranty obligations was as follows (in thousands): 2018 2017 2016 Balance at beginning of period $ 15,388 $ 15,250 $ 16,227 Accruals settled from divestiture — — (538 ) Accruals for warranties issued during period 22,697 20,075 20,055 Adjustments related to pre-existing warranties 233 194 604 Settlements made during the period (22,868 ) (20,131 ) (21,098 ) Balance at end of period $ 15,450 $ 15,388 $ 15,250 The current and long-term portions of the allowance for the estimated settlements are included within "Accounts payable and accrued expenses" and "Other Long-Term Liabilities", respectively, in the Consolidated Balance Sheets. The following table summarizes when these estimated settlements are expected to be paid (in thousands): December 29, 2018 December 30, 2017 Current - in the next twelve months $ 9,455 $ 9,524 Long-term - beyond one year 5,995 5,864 $ 15,450 $ 15,388 Revenue Recognition The Corporation implemented ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), at the beginning of fiscal 2018 using the modified-retrospective method, which required the new guidance to be applied prospectively to revenue transactions completed on or after the effective date. Given the nature of the Corporation's revenue transactions, the new guidance did not have a material impact on the Corporation's results of operations or financial position. All necessary changes required by the new standard, including those to the Corporation's accounting policies, controls, and disclosures, have been identified and implemented as of the beginning of fiscal 2018. See "Note 3. Revenue from Contracts with Customers" in the Notes to Consolidated Financial Statements for policy elections and further information. Product Development Costs Product development costs relating to development of new products and processes, including significant improvements and refinements to existing products, are expensed as incurred. These costs include salaries, contractor fees, building costs, and administrative fees. The amounts charged against income and recorded in "Selling and administrative expenses" on the Consolidated Statements of Comprehensive Income were as follows (in thousands): 2018 2017 2016 Product development costs $ 33,420 $ 31,846 $ 28,089 Freight Expense Freight expense on shipments to customers were recorded in "Selling and administrative expenses" on the Consolidated Statements of Comprehensive Income as follows (in thousands): 2018 2017 2016 Freight expense $ 134,190 $ 119,096 $ 115,157 Stock-Based Compensation The Corporation measures the cost of employee services in exchange for an award of equity instruments based on the grant-date fair value of the award and recognizes cost over the requisite service period. See "Note 12. Stock-Based Compensation" in the Notes to Consolidated Financial Statements for further information. Income Taxes The Corporation uses an asset and liability approach that takes into account guidance related to uncertain tax positions and requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in the Corporation’s financial statements or tax returns. Deferred income taxes are provided to reflect differences between the tax bases of assets and liabilities and their reported amounts in the consolidated financial statements. On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the "Act") was signed into law, making significant changes to the Internal Revenue Code. In January 2018, the FASB released guidance on the accounting for tax on the global intangible low-taxed income ("GILTI") provisions of the Act. The GILTI provisions impose a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. The guidance indicates that either accounting for deferred taxes related to GILTI inclusions or treating any taxes on GILTI inclusions as a period cost are both acceptable methods subject to an accounting policy election. Effective in the first quarter of fiscal 2018, the Corporation elected to treat any potential GILTI inclusions as a period cost, as no material impact is projected from GILTI inclusions and any deferred taxes related to any inclusion would not be material. Also under the Act, a corporation’s foreign earnings accumulated under legacy tax laws are deemed repatriated. The Corporation will continue to evaluate its ability to assert indefinite reinvestment to determine recognition of a deferred tax liability for other items such as Section 986(c) currency gain/loss, foreign withholding, and state taxes. There were approximately $34.5 million of accumulated earnings considered permanently reinvested in China, Hong Kong, Singapore, and Canada as of December 29, 2018 . The Corporation believes the tax costs on accumulated unremitted foreign earnings would be approximately $0.02 million if the amounts were not considered permanently reinvested. See "Note 9. Income Taxes" in the Notes to Consolidated Financial Statements for further information. Earnings Per Share Basic earnings per share are based on the weighted-average number of common shares outstanding during the year. Shares potentially issuable under stock options, restricted stock units, and common stock equivalents under the Corporation's deferred compensation plans have been considered outstanding for purposes of the diluted earnings per share calculation. The following table reconciles the numerators and denominators used in the calculation of basic and diluted earnings per share ("EPS") (in thousands, except per share data): 2018 2017 2016 Numerator: Numerator for both basic and diluted EPS attributable to HNI Corporation net income $ 93,377 $ 89,795 $ 85,577 Denominators: Denominator for basic EPS weighted-average common shares outstanding 43,639 43,839 44,414 Potentially dilutive shares from stock-based compensation plans 689 1,001 1,088 Denominator for diluted EPS 44,328 44,840 45,502 Earnings per share – basic $ 2.14 $ 2.05 $ 1.93 Earnings per share – diluted $ 2.11 $ 2.00 $ 1.88 The weighted-average common stock equivalents presented above do not include the effect of the common stock equivalents in the table below because their inclusion would be anti-dilutive. 2018 2017 2016 Common stock equivalents excluded because their inclusion would be anti-dilutive 1,507,870 809,420 416,142 Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The critical areas requiring use of management estimates relate to goodwill and intangibles, accruals for self-insured medical claims, workers’ compensation, legal contingencies, general liability and auto insurance claims, valuation of long-lived assets, and estimates of income taxes. Other significant areas requiring use of management estimates relate to allowance for doubtful accounts, inventory allowances, marketing program accruals, warranty accruals, and useful lives for depreciation and amortization. Actual results could differ from those estimates. Self-Insurance The Corporation is primarily self-insured for general, auto, and product liability, workers’ compensation, and certain employee health benefits. Certain risk exposures are mitigated through the use of independent third party stop loss insurance coverages. The general, auto, product, and workers’ compensation liabilities are managed using a wholly-owned insurance captive and the related liabilities are included in the Consolidated Balance Sheets as follows (in thousands): December 29, 2018 December 30, 2017 General, auto, product, and workers' compensation liabilities $ 30,227 $ 27,591 The Corporation’s policy is to accrue amounts in accordance with the actuarially determined liabilities. The actuarial valuations are based on historical information along with certain assumptions about future events. Changes in assumptions for such matters as legal actions, medical cost inflation, and magnitude of change in actual experience development could cause these estimates to change in the future. Foreign Currency Translations Foreign currency financial statements of foreign operations, where the local currency is the functional currency, are translated using exchange rates in effect at period end for assets and liabilities and average exchange rates during the period for results of operations. Related translation adjustments are reported as a component of Shareholders’ Equity. Gains and losses on foreign currency transactions are included in "Selling and administrative expenses" in the Consolidated Statements of Comprehensive Income. Reclassifications Certain reclassifications have been made within the financial statements to conform to the current year presentation. Recently Adopted Accounting Standards In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) . The new standard replaces most existing revenue recognition guidance in U.S. GAAP. The core principle of the ASU requires companies to reevaluate when revenue is recorded on a transaction based upon newly defined criteria, either at a point in time or over time as goods or services are delivered. The ASU requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and estimates, and changes in those estimates. The FASB has issued ASU No. 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations , ASU No. 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing , and ASU No. 2016-12, Revenue from Contracts with Customers: Narrow Scope Improvements and Practical Expedients to provide further clarification and guidance. The Corporation implemented the new standard in the first quarter of fiscal 2018 using the modified-retrospective method, which required the new guidance to be applied prospectively to revenue transactions completed on or after the effective date. Given the nature of the Corporation's revenue transactions, the new guidance did not have a material impact on the Corporation's results of operations or financial position. All necessary changes required by the new standard, including those to the Corporation's accounting policies, controls, and disclosures, have been identified and implemented as of the beginning of fiscal 2018. See "Note 3. Revenue from Contracts with Customers" in the Notes to Consolidated Financial Statements for further information. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows - Classification of Certain Cash Receipts and Cash Payments. The new standard provides classification guidance on eight cash flow issues including debt prepayment, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlements of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, and distributions received from equity method investees. The Corporation implemented the new standard in the first quarter of fiscal 2018. This standard did not have a material effect on the consolidated financial statements or related disclosures. In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other Than Inventory . The new standard requires an entity to recognize the income tax consequences of intra-entity transfers of assets other than inventory when the transfer occurs. The Corporation implemented the new standard in the first quarter of fiscal 2018. This standard did not have a material effect on the consolidated financial statements or related disclosures. In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business . The new standard amends ASC 805, Business Combinations. This ASU provides a new framework for determining whether transactions should be accounted for as acquisitions (or disposals) of a group of assets or of a business. The Corporation implemented the new standard in the first quarter of fiscal 2018 on a prospective basis. The standard did not have a material effect on the consolidated financial statements or related disclosures. In March 2017, the FASB issued ASU No. 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost . The new standard requires an entity with defined benefit and post-retirement benefit plans to present the service cost component of the net periodic benefit cost in the same income statement line item or items as other compensation costs arising from services rendered by employees during the period. All other components of net periodic benefit cost will be presented outside of operating income, if a subtotal is presented. The Corporation implemented the new standard in the first quarter of fiscal 2018 and it was applied retrospectively to each period presented. This standard did not have a material effect on the consolidated financial statements or related disclosures.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	12 Months Ended
	Dec. 29, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer	Revenue from Contracts with Customers The Corporation implemented ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), at the beginning of fiscal 2018 using the modified-retrospective method, which required the new guidance to be applied prospectively to revenue transactions completed on or after the effective date. Given the nature of the Corporation's revenue transactions, the new guidance did not have a material impact on the Corporation's results of operations or financial position. All necessary changes required by the new standard, including those to the Corporation's accounting policies, controls, and disclosures, have been identified and implemented as of the beginning of fiscal 2018. Disaggregation of Revenue Revenue from contracts with customers disaggregated by sales channel and by segment is as follows (in thousands): Segment December 29, 2018 December 30, 2017 Supplies-driven channel Office Furniture $ 904,292 $ 836,733 Contract channel Office Furniture 801,800 823,990 Hearth Hearth Products 551,803 515,159 Net sales $ 2,257,895 $ 2,175,882 The majority of revenue presented as "Net sales" in the Consolidated Statements of Comprehensive Income is the result of contracts with customers. All other sources of revenue are not material to the Corporation's results of operations. Sales by channel type are subject to similar economic factors and market conditions regardless of the channel under which the product is sold. See “Note 17. Reportable Segment Information” in the Notes to Consolidated Financial Statements for further information about operating segments. Contract Assets and Contract Liabilities In addition to trade receivables, the Corporation has contract assets consisting of funds paid to certain office furniture dealers in exchange for their multi-year commitment to market and sell the Corporation’s product. These dealer investments are amortized over the term of the contracts and recognized as a reduction of revenue. For contracts less than one year, the Corporation has elected the practical expedient to recognize incremental costs to obtain a contract as an expense when incurred. The Corporation has contract liabilities consisting of deferred revenue and rebate and marketing program liabilities. Contract assets and liabilities were as follows (in thousands): December 29, December 30, Trade receivables (1) $ 259,075 $ 260,455 Contract assets (current) (2) $ 529 $ 300 Contract assets (long-term) (3) $ 2,188 $ 2,350 Contract liabilities (4) $ 44,858 $ 54,527 The index below indicates the line item in the Consolidated Balance Sheets where contract assets and contract liabilities are reported: (1) "Receivables" (2) "Prepaid expenses and other current assets" (3) "Other Assets" (4) "Accounts payable and accrued expenses" Changes in contract asset and contract liability balances during the year ended December 29, 2018 were as follows (in thousands): Contract assets increase (decrease) Contract liabilities (increase) decrease Contract assets recognized $ 2,100 $ — Reclassification of contract assets to contra revenue (483 ) — Contract asset impairment (1,550 ) — Contract liabilities recognized and recorded to contra revenue as a result of performance obligations satisfied — (127,454 ) Contract liabilities paid — 132,909 Cash received in advance and not recognized as revenue — (54,167 ) Reclassification of cash received in advance to revenue as a result of performance obligations satisfied — 58,304 Impact of business combination — 77 Net change $ 67 $ 9,669 Due to the short term nature of our contract liabilities, all contract liabilities as of December 30, 2017 were recognized as revenue during the three months ended March 31, 2018 . For the full year ended December 29, 2018 , the Corporation recognized revenue of $12.5 million in the Consolidated Statements of Comprehensive Income related to contract liabilities as of December 30, 2017 . Performance Obligations The Corporation recognizes revenue for sales of office furniture and hearth products at a point in time following the transfer of control of such products to the customer, which typically occurs upon shipment of the product. In certain circumstances, transfer of control to the customer does not occur until the goods are received by the customer or upon installation and/or customer acceptance, depending on the terms of the underlying contracts. Contracts typically have a duration of less than one year and normally do not include a significant financing component. Generally, payment is due within 30 days of invoicing. Significant Judgments The Corporation uses significant judgment throughout the year in estimating the reduction in net sales driven by rebate and marketing programs. Judgments made include expected sales levels and utilization of funds. However, this judgment factor is significantly reduced at the end of each year when sales volumes and the impact to rebate and marketing programs are known and recorded as the programs typically don't extend multiple years. Accounting Policies and Practical Expedients Elected The Corporation elected to use the modified-retrospective method of adopting the new standard on revenue recognition. The new standard has been applied to all contracts not completed as of December 30, 2017 , the end of the Corporation’s fiscal 2017 . The impact of the Corporation's transition adjustment for the new revenue recognition guidance was not material to the Corporation's results of operations or financial position. The additional disclosures required as a result of adopting the new revenue recognition guidance were material to the Corporation's financial statements. The Corporation elected the following accounting policies as a result of adopting the new standard on revenue recognition: Shipping and Handling Activities - The Corporation has elected to apply the accounting policy election permitted in ASC 606-10-25-18B, which allows an entity to account for shipping and handling activities that occur after control is transferred as fulfillment activities. The Corporation accrues for shipping and handling costs at the same time revenue is recognized, which is in accordance with the policy election. When shipping and handling activities occur prior to the customer obtaining control of the good(s), they are considered fulfillment activities rather than a performance obligation and the costs are accrued for as incurred. Sales Taxes - The Corporation has elected to apply the accounting policy election permitted in ASC 606-10-32-2A, which allows an entity to exclude from the measurement of the transaction price all taxes assessed by a governmental authority associated with the transaction, including sales, use, excise, value-added, and franchise taxes (collectively referred to as sales taxes). This allows the Corporation to present revenue net of these certain types of taxes. These policies have been applied consistently to all revenue transactions. The Corporation has elected the following practical expedients as a result of adopting the new standard on revenue recognition: Incremental Costs of Obtaining a Contract - The Corporation has elected the practical expedient permitted in ASC 340-40-25-4, which permits an entity to recognize incremental costs to obtain a contract as an expense when incurred if the amortization period will be less than one year. The Corporation will apply this practical expedient when the requirements to apply it are met. Significant Financing Component - The Corporation has elected the practical expedient permitted in ASC 606-10-32-18, which allows an entity to not adjust the promised amount of consideration for the effects of a significant financing component if a contract has a duration of one year or less. As the Corporation's contracts are typically less than one year in length, consideration will not be adjusted. Remaining Performance Obligation - The Corporation's backlog orders are typically cancelable for a period of time and almost all of our contracts have an original duration of one year or less. As a result, we have elected the practical expedient not to disclose our remaining performance obligation. The backlog disclosed is typically fulfilled within one or two quarters. These accounting policies and practical expedients have been applied consistently to all revenue transactions.

Restructuring and Impairment Ch

Restructuring and Impairment Charges	12 Months Ended
	Dec. 29, 2018
Restructuring and Related Activities [Abstract]
Restructuring and Impairment Charges	Restructuring and Impairment Charges Restructuring costs, goodwill and long-lived asset impairments, and a valuation allowance recorded in the Consolidated Statements of Comprehensive Income are as follows (in thousands): 2018 2017 2016 Cost of sales - accelerated depreciation $ — $ 10,327 $ 5,302 Restructuring charges $ 2,325 $ 6,205 $ 5,229 Goodwill and long-lived asset impairments 15,200 20,947 5,776 Valuation allowance of long-term note receivable (1,800 ) 10,264 — Restructuring and impairment charges $ 15,725 $ 37,416 $ 11,005 Restructuring costs in 2018 were primarily incurred as part of the previously announced closures of the hearth manufacturing facilities in Paris, Kentucky and Colville, Washington and the office furniture manufacturing facility in Orleans, Indiana. Impairment charges include the impairment of goodwill and long-lived assets for office furniture companies and an impairment charge from the sale of the closed manufacturing facility in Paris, Kentucky. The Corporation also recovered a portion of a long-term note receivable previously impaired. Restructuring costs in 2017 , which include accelerated depreciation recorded in "Cost of sales" in the Consolidated Statements of Comprehensive Income, were primarily incurred as part of the previously announced closures of the hearth manufacturing facilities in Paris, Kentucky and Colville, Washington and the office furniture manufacturing facility in Orleans, Indiana. As of December 30, 2017 , the estimated fair value of the Paris, Kentucky hearth manufacturing facility of $4.6 million was classified as held for sale and is included in "Prepaid expenses and other current assets" in the Consolidated Balance Sheets. Restructuring costs in 2016 , which include accelerated depreciation recorded in "Cost of sales" in the Consolidated Statements of Comprehensive Income, were primarily incurred as part of the previously announced closures of the Paris, Kentucky hearth manufacturing facility and the Orleans, Indiana office furniture manufacturing facility. See "Note 7. Goodwill and Other Intangible Assets" in the Notes to Consolidated Financial Statements for more information on goodwill and long-lived asset impairments. See "Note 5. Acquisitions and Divestitures" in the Notes to Consolidated Financial Statements for more information on the valuation allowance of a long-term note receivable. The accrued restructuring expenses are expected to be paid in the next twelve months and are included in "Accounts payable and accrued expenses" in the Consolidated Balance Sheets. The following is a summary of changes in restructuring accruals (in thousands): Severance Costs Facility Exit Costs & Other Total Restructuring allowance as of January 2, 2016 $ 206 $ 15 $ 221 Restructuring charges 3,883 1,346 5,229 Cash payments (1,385 ) (1,361 ) (2,746 ) Restructuring allowance as of December 31, 2016 2,704 — 2,704 Restructuring charges 1,436 4,769 6,205 Cash payments (2,797 ) (4,253 ) (7,050 ) Restructuring allowance as of December 30, 2017 1,343 516 1,859 Restructuring charges 355 1,970 2,325 Cash payments (1,562 ) (2,336 ) (3,898 ) Restructuring allowance as of December 29, 2018 $ 136 $ 150 $ 286 Real Estate Transaction As part of the Corporation's continued efforts to drive efficiency and simplification, the Corporation entered into a sale-leaseback transaction in the first quarter of 2018, selling a manufacturing facility and subsequently leasing back a portion of the facility for a term of 10 years . The net proceeds from the sale of the facility of $16.9 million are reflected in "Proceeds from sale and license of property, plant, equipment, and intangibles" in the Consolidated Statements of Cash Flows. In accordance with ASC 840, Leases , the $5.1 million gain on the sale of the facility was deferred and is being amortized as a reduction to rent expense evenly over the term of the lease. As of December 29, 2018 , the current portion of the deferred gain is $0.5 million and included within "Accounts payable and accrued expenses" and the long-term portion of the deferred gain is $4.2 million and included within "Other Long-Term Liabilities" in the Consolidated Balance Sheets. The transaction did not have a material impact to the Consolidated Statements of Comprehensive Income.

Acquisitions and Divestitures

Acquisitions and Divestitures	12 Months Ended
	Dec. 29, 2018
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures In the third quarter of 2018, the Corporation acquired a small hearth products company resulting in a preliminary goodwill valuation of $3.4 million . The remaining assets and liabilities recorded in the third quarter of 2018 were not material to the Corporation's financial statements. The Corporation will finalize the allocation of the purchase price over the next few quarters based on the final purchase price and fair value adjustments. OFM On January 29, 2016, the Corporation acquired OFM, an office furniture company, with annual sales of approximately $30 million at a purchase price of $34.1 million , net of cash acquired, in an all cash transaction. The Corporation finalized the allocation of the purchase price during fourth quarter 2016. There were $15 million of intangible assets other than goodwill associated with this acquisition with estimated useful lives ranging from three to 10 years with amortization recorded on a straight-line basis based on the projected cash flow associated with the respective intangible assets. There was $14 million of goodwill associated with this acquisition. The goodwill is deductible for income tax purposes. Office Furniture Dealerships As part of the Corporation's ongoing business strategy, it continues to acquire and divest small office furniture dealerships, for which impact is not material to the Corporation's financial statements. Artcobell The Corporation completed the sale of substantially all the assets of ArtcoBell Corporation ("Artcobell"), a K-12 education furniture business, on December 31, 2016. A pre-tax non-cash charge of approximately $23 million and a $10 million long-term note receivable, which was included in "Other Assets" in the Corporation's Consolidated Balance Sheets in Form 10-K for the fiscal year ended December 31, 2016, were recorded in relation to the sale. Artcobell had been included as part of the Corporation's office furniture segment. As of December 30, 2017, a valuation allowance was recorded against the long-term note receivable. The Corporation is not required to make any payments and recorded an immaterial recovery in the fourth quarter of 2018.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 29, 2018
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information The Corporation's cash payments for interest, income taxes, and non-cash investing and financing activities are as follows (in thousands): 2018 2017 2016 Cash paid for: Interest paid, net of capitalized interest $ 9,882 $ 6,236 $ 6,644 Income taxes paid $ 11,465 $ 13,733 $ 23,120 Changes in accrued expenses due to: Purchases of property and equipment $ 5,895 $ (10,370 ) $ 3,599 Purchases of capitalized software $ (2,497 ) $ (237 ) $ 603

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill and other intangible assets included in the Consolidated Balance Sheets consisted of the following (in thousands): December 29, 2018 December 30, 2017 Goodwill $ 270,788 $ 279,505 Definite-lived intangible assets 163,714 182,186 Indefinite-lived intangible assets 28,788 29,201 Total goodwill and other intangible assets $ 463,290 $ 490,892 Goodwill The changes in the carrying amount of goodwill, by reporting segment, are as follows (in thousands): Office Furniture Hearth Products Total Balance as of December 31, 2016 Goodwill $ 137,889 $ 183,199 $ 321,088 Accumulated impairment losses (30,246 ) (143 ) (30,389 ) Net goodwill balance as of December 31, 2016 107,643 183,056 290,699 Impairment losses (4,838 ) — (4,838 ) Foreign currency translation adjustment (44 ) — (44 ) Impairment loss due to closure of an office furniture brand (6,312 ) — (6,312 ) Balance as of December 30, 2017 Goodwill 128,657 183,199 311,856 Accumulated impairment losses (32,208 ) (143 ) (32,351 ) Net goodwill balance as of December 30, 2017 96,449 183,056 279,505 Goodwill acquired during the year — 3,463 3,463 Impairment losses (12,168 ) — (12,168 ) Foreign currency translation adjustment (12 ) — (12 ) Balance as of December 29, 2018 Goodwill 128,645 186,662 315,307 Accumulated impairment losses (44,376 ) (143 ) (44,519 ) Net goodwill balance as of December 29, 2018 $ 84,269 $ 186,519 $ 270,788 The increases in goodwill relate to completed acquisitions. See "Note 5. Acquisitions and Divestitures" in the Notes to Consolidated Financial Statements for further information. The decreases in goodwill in the office furniture segment were due to impairment charges, which are described below. Definite-lived intangible assets The table below summarizes amortizable definite-lived intangible assets, which are reflected in "Goodwill and Other Intangible Assets" in the Corporation’s Consolidated Balance Sheets (in thousands): December 29, 2018 December 30, 2017 Gross Accumulated Amortization Net Gross Accumulated Amortization Net Patents $ 40 $ 34 $ 6 $ 40 $ 26 $ 14 Software 170,274 49,561 120,713 167,105 34,792 132,313 Trademarks and trade names 7,564 2,721 4,843 7,564 2,061 5,503 Customer lists and other 103,840 65,688 38,152 106,090 61,734 44,356 Net definite-lived intangible assets $ 281,718 $ 118,004 $ 163,714 $ 280,799 $ 98,613 $ 182,186 Amortization expense is reflected in "Selling and administrative expenses" in the Consolidated Statements of Comprehensive Income and was as follows (in thousands): 2018 2017 2016 Capitalized software $ 17,109 $ 9,389 $ 4,722 Other definite-lived intangibles $ 6,615 $ 6,989 $ 7,055 The occurrence of events such as acquisitions, dispositions, or impairments may impact future amortization expense. Based on the current amount of intangible assets subject to amortization, the estimated amortization expense for each of the following five fiscal years is as follows (in millions): 2019 2020 2021 2022 2023 Amortization expense $ 23.8 $ 22.9 $ 21.6 $ 19.2 $ 16.9 Indefinite-lived intangible assets The Corporation also owns certain intangible assets, which are deemed to have indefinite useful lives because they are expected to generate cash flows indefinitely. These indefinite-lived intangible assets are reflected in "Goodwill and Other Intangible Assets" in the Consolidated Balance Sheets (in thousands): December 29, 2018 December 30, 2017 Trademarks and trade names $ 28,788 $ 29,201 As a result of the required annual impairment assessment performed in the fourth quarter of 2018 , the Corporation did not record any impairment charges related to indefinite-lived intangible assets. Sale and License of an Intangible Asset In the third quarter of 2017, the Corporation recorded a $6.0 million nonrecurring gain from the sale and license of an intangible asset, which had a zero carrying value. This nonrecurring gain is reflected in "(Gain) loss on sale, disposal, and license of assets" in the Consolidated Statements of Comprehensive Income. Impairment Analysis As a result of the required annual impairment assessment performed in the fourth quarter of 2018 , the Corporation determined the fair value of a reporting unit within the office furniture segment was below its carrying value. This reporting unit had triggering events in both the second and third quarters of 2018 due to lower projected operating results, and was tested with interim quantitative impairment tests that resulted in no impairment either time. In the fourth quarter of 2018, a further decline in the estimated fair value of this reporting unit was primarily driven by reduced long-term margin expectations and resulted in an impairment. The projections used in the impairment model reflected management's assumptions regarding revenue growth rates, economic and market trends, cost structure, investments required for product enhancements, and other expectations about the anticipated short-term and long-term operating results of the reporting unit. The Corporation assumed a discount rate of 14 percent , near term growth rates ranging from 1 percent to 6 percent , and a terminal growth rate of 3 percent . Based on the quantitative analysis, the Corporation recorded a $12.2 million goodwill impairment charge in 2018 , which is reflected in "Goodwill and Other Intangible Assets" in the Corporation's Consolidated Balance Sheets. There was $7.5 million net goodwill remaining in the reporting unit as of December 29, 2018 . Holding other assumptions constant, a 100 basis point increase in the discount rate would result in a $2.3 million decrease in the estimated fair value of the reporting unit. Holding other assumptions constant, a 50 basis point decrease in the long-term growth rate would result in a $0.5 million decrease in the estimated fair value of the reporting unit. Prior to the goodwill impairment assessment, the Corporation completed a qualitative review of long-lived assets for all asset groups to determine if events or changes in circumstances indicated that the carrying amount of each asset group may not be recoverable (if a "triggering event" existed). Based on this review, the Corporation tested the recoverability of the long-lived assets, other than goodwill and indefinite-lived intangible assets, in a certain asset groups where a triggering events existed, and found no impairments. Trigger events were noted in these certain asset groups in the second and third quarters of 2018 and no impairments were found. Based on the results of the annual impairment test, the Corporation concluded that no other goodwill impairment existed apart from the impairment charges discussed above. For all other reporting units included in the annual quantitative impairment test, the estimated fair value is significantly in excess of the carrying value.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 29, 2018
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Long-term debt is as follows (in thousands): 2018 2017 Revolving credit facility with interest at a variable rate (December 29, 2018 - 3.5%; December 30, 2017 - 2.7%) $ 150,000 $ 267,500 Fixed rate notes due in 2025 with an interest rate of 4.22% 50,000 — Fixed rate notes due in 2028 with an interest rate of 4.40% 50,000 — Other amounts 679 9,148 Deferred debt issuance costs (645 ) — Total debt 250,034 276,648 Less: Current maturities of long-term debt 679 36,648 Long-term debt $ 249,355 $ 240,000 Aggregate maturities of long-term debt are as follows (in thousands): 2019 2020 2021 2022 2023 Thereafter Maturities of long-term debt $ 679 $ — $ — $ — $ 150,000 $ 100,000 As of December 29, 2018 , the Corporation’s revolving credit facility borrowings were under the credit agreement entered into on April 20, 2018 with a scheduled maturity of April 20, 2023. This Third Amended and Restated Credit Agreement replaces the previously executed Second Amended and Restated Credit Agreement dated January 6, 2016. The Corporation deferred the debt issuance costs related to the credit agreement, which are classified as assets, and is amortizing them over the term of the credit agreement. The current portion of $0.4 million is the amount to be amortized over the next twelve months based on the current credit agreement and is reflected in "Prepaid expenses and other current assets" in the Consolidated Balance Sheets. The long-term portion of $1.5 million is reflected in "Other Assets" in the Consolidated Balance Sheets. As of December 29, 2018 , there was $150 million outstanding under the $450 million revolving credit facility. The entire amount drawn under the revolving credit facility is considered long-term as the Corporation assumes no obligation to repay any of the amounts borrowed in the next twelve months. In addition to cash flows from operations, the revolving credit facility under the credit agreement is the primary source of daily operating capital for the Corporation and provides additional financial capacity for capital expenditures and strategic initiatives, such as acquisitions and repurchases of common stock. In addition to the revolving credit facility, the Corporation also has $100 million of borrowings outstanding under private placement note agreements entered into on May 31, 2018. Under the agreements, the Corporation issued $50 million of seven -year fixed rate notes with an interest rate of 4.22 percent , due May 31, 2025, and $50 million of ten -year fixed rate notes with an interest rate of 4.40 percent , due May 31, 2028. The Corporation deferred the debt issuance costs related to the private placement note agreements, which are classified as a reduction of long-term debt in accordance with ASU No. 2015-03, and is amortizing them over the terms of the private placement note agreements. The deferred debt issuance costs do not reduce the amount owed by the Corporation under the terms of the private placement note agreements. As of December 29, 2018 the debt issuance costs balance of $0.6 million is reflected in "Long-Term Debt" in the Consolidated Balance Sheets. The credit agreement and private placement notes both contain financial and non-financial covenants. The covenants under both are substantially the same. Non-compliance with covenants under the agreements could prevent the Corporation from being able to access further borrowings, require immediate repayment of all amounts outstanding, and/or increase the cost of borrowing. Covenants require maintenance of financial ratios as of the end of any fiscal quarter, including: • a consolidated interest coverage ratio (as defined in the credit agreement) of not less than 4.0 to 1.0, based upon the ratio of (a) consolidated EBITDA for the last four fiscal quarters to (b) the sum of consolidated interest charges; and • a consolidated leverage ratio (as defined in the credit agreement) of not greater than 3.5 to 1.0, based upon the ratio of (a) the quarter-end consolidated funded indebtedness to (b) consolidated EBITDA for the last four fiscal quarters. The most restrictive of the financial covenants is the consolidated leverage ratio requirement of 3.5 to 1.0. Under the credit agreement, consolidated EBITDA is defined as consolidated net income before interest expense, income taxes, and depreciation and amortization of intangibles, as well as non-cash items that increase or decrease net income. As of December 29, 2018 , the Corporation was below the maximum allowable ratio and was in compliance with all of the covenants and other restrictions in the credit agreement. The Corporation expects to remain in compliance with all of the covenants and other restrictions in the credit agreement over the next twelve months.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Significant components of the provision for income taxes, including those related to non-controlling interest, are as follows (in thousands): 2018 2017 2016 Current: Federal $ 15,663 $ 9,501 $ 18,963 State 4,877 3,408 3,740 Foreign 936 789 1,450 Current provision 21,476 13,698 24,153 Deferred: Federal 4,002 (35,914 ) 18,167 State 1,320 2,552 2,533 Foreign (1,399 ) 378 (1,580 ) Deferred provision 3,923 (32,984 ) 19,120 Total income tax expense $ 25,399 $ (19,286 ) $ 43,273 The differences between the actual tax expense and tax expense computed at the statutory U.S. federal tax rate are explained as follows (in thousands): 2018 2017 2016 Federal statutory tax expense $ 24,943 $ 24,678 $ 45,098 State taxes, net of federal tax effect 3,997 2,197 3,874 Credit for increasing research activities (3,950 ) (3,407 ) (3,808 ) Deduction related to domestic production activities — (1,537 ) (2,243 ) Valuation allowance (1,141 ) 4,232 231 Federal rate adjustment to deferred taxes — (45,386 ) — Equity based compensation (666 ) (1,544 ) — Change in uncertain tax positions 766 (163 ) 117 Foreign income tax rate differential 124 2,094 845 Other – net 1,326 (450 ) (841 ) Total income tax expense $ 25,399 $ (19,286 ) $ 43,273 On December 22, 2017, the Act was signed into law, making significant changes to the Internal Revenue Code. Changes include, but are not limited to, a corporate tax rate decrease from 35 percent to 21 percent effective for tax years beginning after December 31, 2017, the transition of U.S. international taxation from a worldwide tax system to a territorial system, and a one-time transition tax on the mandatory deemed repatriation of cumulative foreign earnings as of December 31, 2017. Staff Accounting Bulletin No. 118 ("SAB 118") was issued to address the application of U.S. GAAP in the reporting period that includes December 22, 2017 in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Act. In accordance with SAB 118, the Corporation determined as of the end of fiscal 2017, the $45.4 million of the deferred tax benefit recorded in connection with the remeasurement of certain deferred tax assets and liabilities and the $0.1 million of current tax expense recorded in connection with the transition tax on the mandatory deemed repatriation of foreign earnings was a provisional amount and a reasonable estimate as of December 30, 2017. Additional work was necessary to complete a more detailed analysis of historical foreign earnings as well as potential correlative adjustments. Subsequent adjustments to these amounts, which were not material, were recorded to current tax expense in the third quarter of 2018 when the analysis was completed. During the third quarter of 2018, the 2017 federal income tax return was completed resulting in a $0.5 million detriment related to the reversal of net deferred tax liabilities based on the rates at which they are expected to reverse in the future as a result of tax reform rate changes. The Corporation finalized its calculation of the full impact of the Act on its 2017 federal income tax return during the third quarter of 2018. Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Corporation’s deferred tax liabilities and assets are as follows (in thousands): 2018 2017 Deferred Taxes Allowance for doubtful accounts $ 897 $ 2,679 Compensation 6,419 5,618 Inventory differences 2,498 2,541 Marketing accrual 1,260 1,653 Stock-based compensation 8,456 8,224 Accrued post-retirement benefit obligations 5,500 6,896 Vacation accrual 2,783 2,577 Warranty accrual 3,761 3,737 Net operating loss carryforward 4,790 6,534 Charitable contributions carryforward 712 2,839 Other – net 12,702 6,372 Total deferred tax assets $ 49,778 $ 49,670 Deferred income (4,707 ) (4,330 ) Goodwill and other intangible assets (52,468 ) (53,255 ) Prepaids (6,536 ) (5,862 ) Tax over book depreciation (59,500 ) (54,227 ) Total deferred tax liabilities $ (123,211 ) $ (117,674 ) Valuation allowance (7,153 ) (8,664 ) Total net deferred tax liabilities $ (80,586 ) $ (76,668 ) Long-term net deferred tax assets 1,569 193 Long-term net deferred tax liabilities (82,155 ) (76,861 ) Total net deferred tax liabilities $ (80,586 ) $ (76,668 ) The valuation allowance for deferred tax assets is as follows (in thousands): Balance at beginning of period Charged to expenses Adjustments to balance sheet Balance at end of period Year ended December 29, 2018 $ 8,664 (839 ) (672 ) $ 7,153 Year ended December 30, 2017 $ 4,159 4,505 — $ 8,664 Year ended December 31, 2016 $ 3,978 $ 231 $ (50 ) $ 4,159 The current year decrease in the valuation allowance of $1.5 million primarily relates to a partial release of valuation allowances related to a foreign net operating loss utilization, an increase of other foreign tax net operating loss and a partial release of a previously recorded domestic deferred tax asset recorded that would give rise to a capital loss. The adjustment to the balance sheet relates to a change in foreign tax rate on certain foreign deferred tax assets. As of December 29, 2018 , the Corporation had approximately $0.5 million of U.S. state tax net operating losses and $2.2 million of U.S. state tax credits, which expire over the next twenty years . A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): 2018 2017 Balance at beginning of period $ 2,524 $ 3,043 Increases in positions taken in a prior period 262 — Decreases in positions taken in a prior period — (45 ) New positions taken in a current period 529 569 Decrease due to settlements (9 ) (363 ) Decrease due to lapse of statute of limitations (369 ) (680 ) Balance at end of period $ 2,937 $ 2,524 The amount of unrecognized tax benefits, which would impact the Corporation's effective tax rate, if recognized, was $2.9 million as of December 29, 2018 and $2.5 million as of December 30, 2017 . As of December 29, 2018 , it is reasonably possible the amount of unrecognized tax benefits may increase or decrease within the twelve months following the reporting date. These increases or decreases in the unrecognized tax benefits would be due to new positions that may be taken on income tax returns, settlement of tax positions, and the closing of statutes of limitation. It is not expected any of the changes will be material individually, or in total, to the results or financial position of the Corporation. The Corporation recognized interest accrued related to unrecognized tax benefits in interest expense and penalties in operating expenses consistent with the recognition of these items in prior reporting periods. Interest, penalties, and benefits recognized in the Consolidated Statements of Comprehensive Income were as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Interest, penalties, and (benefits) $ 92 $ (25 ) $ 70 The Corporation recorded a liability for interest and penalties related to unrecognized tax benefits in the Consolidated Statements of Comprehensive Income as follows (in thousands): December 29, 2018 December 30, 2017 Liability related to unrecognized tax benefits $ 275 $ 183 Tax years 2015 through 2017 remain open for examination by the Internal Revenue Service ("IRS"). The Corporation is currently under examination in various state jurisdictions, of which years 2014 through 2017 remain open to examination. Deferred income taxes are provided to reflect differences between the tax basis of assets and liabilities and their reported amounts in the financial statements. Under the Act, a corporation’s foreign earnings accumulated under legacy tax laws are deemed repatriated. The tax on those deemed repatriated earnings is no longer indefinitely deferred but may be paid over eight years. This is a one-time transition tax. There were approximately $34.5 million of accumulated earnings considered permanently reinvested in China, Hong Kong, Singapore, and Canada as of December 29, 2018 . The Corporation believes the tax costs on accumulated unremitted foreign earnings would be approximately $0.02 million if the amounts were not considered permanently reinvested.

Fair Value Measurements of Fina

Fair Value Measurements of Financial Instruments	12 Months Ended
	Dec. 29, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements of Financial Instruments	Fair Value Measurements of Financial Instruments For recognition purposes, on a recurring basis, the Corporation is required to measure at fair value its marketable securities, derivative financial instruments, variable-rate and fixed-rate debt obligations, and deferred stock-based compensation. The marketable securities are comprised of money market funds, government securities, and corporate bonds. When available, the Corporation uses quoted market prices to determine fair value and classifies such measurements within Level 1. Where market prices are not available, the Corporation makes use of observable market-based inputs (prices or quotes from published exchanges and indexes) to calculate fair value using the market approach, in which case the measurements are classified within Level 2. Financial instruments measured at fair value were as follows (in thousands): Fair value as of measurement date Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Balance as of December 29, 2018 Cash and cash equivalents (including money market funds) (1) $ 76,819 $ 76,819 $ — $ — Government securities (2) $ 7,384 $ — $ 7,384 $ — Corporate bonds (2) $ 4,620 $ — $ 4,620 $ — Derivative financial instruments (3) $ 3,797 $ — $ 3,797 $ — Variable-rate debt obligations (4) $ 150,000 $ — $ 150,000 $ — Fixed-rate debt obligations (4) $ 100,000 $ — $ 100,000 $ — Deferred stock-based compensation (5) $ 7,857 $ — $ 7,857 $ — Balance as of December 30, 2017 Cash and cash equivalents (including money market funds) (1) $ 23,348 $ 23,348 $ — $ — Government securities (2) $ 6,345 $ — $ 6,345 $ — Corporate bonds (2) $ 6,149 $ — $ 6,149 $ — Derivative financial instruments (3) $ 3,354 $ — $ 3,354 $ — Variable-rate debt obligations (4) $ 267,500 $ — $ 267,500 $ — Deferred stock-based compensation (5) $ 8,885 $ — $ 8,885 $ — The index below indicates the line item in the Consolidated Balance Sheets where the financial instruments are reported: (1) "Cash and cash equivalents" (2) Current portion - "Short-term investments"; Long-term portion - "Other Assets" (3) Current portion - "Prepaid expenses and other current assets"; Long-term portion - "Other Assets" (4) Current portion - "Current maturities of long-term debt"; Long-term portion - "Long-Term Debt" (5) Current portion - "Current maturities of other long-term obligations"; Long-term portion - "Other Long-Term Liabilities"

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity	12 Months Ended
	Dec. 29, 2018
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity	Accumulated Other Comprehensive Income (Loss) and Shareholders’ Equity The following table summarizes the components of accumulated other comprehensive income (loss) and the changes in accumulated other comprehensive income (loss), net of tax, as applicable (in thousands): Foreign Currency Translation Adjustment Unrealized Gains (Losses) on Marketable Securities Pension and Post-retirement Liabilities Derivative Financial Instruments Accumulated Other Comprehensive Income (Loss) Balance as of January 2, 2016 $ 322 $ (2 ) $ (5,506 ) $ — $ (5,186 ) Other comprehensive income (loss) before reclassifications (1,510 ) (158 ) 499 1,317 148 Tax (expense) or benefit — 55 (160 ) (485 ) (590 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax — — — 628 628 Balance as of December 31, 2016 $ (1,188 ) $ (105 ) $ (5,167 ) $ 1,460 $ (5,000 ) Other comprehensive income (loss) before reclassifications 1,219 (6 ) (733 ) 714 1,194 Tax (expense) or benefit — (21 ) 270 (263 ) (14 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax — — — 209 209 Balance as of December 30, 2017 $ 31 $ (132 ) $ (5,630 ) $ 2,120 $ (3,611 ) Other comprehensive income (loss) before reclassifications (3,004 ) (31 ) 3,531 1,488 1,984 Tax (expense) or benefit — 7 (830 ) (350 ) (1,173 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax — — — (799 ) (799 ) Balance as of December 29, 2018 $ (2,973 ) $ (156 ) $ (2,929 ) $ 2,459 $ (3,599 ) Amounts in parentheses indicate reductions to equity. Interest Rate Swap In March 2016, the Corporation entered in to an interest rate swap transaction to hedge $150 million of outstanding variable rate revolver borrowings against future interest rate volatility. Under the terms of the interest rate swap, the Corporation pays a fixed rate of 1.29 percent and receives one month LIBOR on a $150 million notational value expiring January 2021. As of December 29, 2018 , the fair value of the Corporation's interest rate swap was an asset of $3.8 million , which is reflected in "Other Assets" in the Consolidated Balance Sheets. The unrecognized change in value of the interest rate swap is reported net of tax as $2.5 million in "Accumulated other comprehensive income (loss)" in the Consolidated Balance Sheets. The following table details the reclassifications from accumulated other comprehensive income (loss) (in thousands): Details about Accumulated Other Comprehensive Income (Loss) Components Affected Line Item in the Statement Where Net Income is Presented 2018 2017 2016 Derivative financial instruments Interest rate swap Interest (expense) or income $ 1,045 $ (330 ) $ (993 ) Tax (expense) or benefit (246 ) 121 365 Net of tax $ 799 $ (209 ) $ (628 ) Amounts in parentheses indicate reductions to profit. In May 2017, the Corporation registered 300,000 shares of its common stock under its 2017 Equity Plan for Non-Employee Directors of HNI Corporation (the "2017 Director Plan"). The 2017 Director Plan replaced the 2007 Equity Plan for Non-Employee Directors of HNI Corporation (the "2007 Director Plan" and together with the 2017 Director Plan, the "Director Plans"). After approval of the 2017 Director Plan, no awards were granted under the 2007 Director Plan. The 2017 Director Plan permits the Corporation to issue to its non-employee directors options to purchase shares of Corporation common stock, restricted stock or restricted stock units of the Corporation, and awards of Corporation common stock. The 2017 Director Plan also permits non-employee directors to elect to receive all or a portion of their annual retainers and other compensation in the form of shares of Corporation common stock. Common stock was issued under the Director Plans as follows: 2018 2017 2016 Director Plan issued shares of common stock 27,745 27,196 24,352 Dividend Cash dividends declared and paid per share for each year were as follows (in dollars): 2018 2017 2016 Common shares $ 1.17 $ 1.13 $ 1.09 During 2017, shareholders approved the HNI Corporation Members' Stock Purchase Plan (the "2017 MSPP") to replace the expired 2007 Members' Stock Purchase Plan (the "2007 MSPP" and together with the 2017 MSPP, the "MSPPs"). Under the 2017 MSPP, 800,000 shares of common stock were registered for issuance to participating members. After approval of the 2017 MSPP, no awards were granted under the 2007 MSPP. Under the 2017 MSPP, rights to purchase stock are granted on a quarterly basis to all participating members who customarily work 20 hours or more per week and for five months or more in any calendar year. The price of the stock purchased under the MSPP is 85 percent of the closing price on the exercise date. No member may purchase stock under the MSPP in an amount which exceeds a maximum fair value of $25,000 in any calendar year. The following table provides the details of stock under the MSPPs: 2018 2017 2016 Shares of common stock issued 74,020 74,694 75,098 Average price per share $ 32.19 $ 35.22 $ 37.77 An additional 673,013 shares were available for issuance under the 2017 MSPP as of December 29, 2018 . The Corporation has entered into change in control employment agreements with certain officers. According to the agreements, a change in control occurs when a third person or entity becomes the beneficial owner of 20 percent or more of the Corporation’s common stock, when more than one-third of the Board is composed of persons not recommended by at least three-fourths of the incumbent Board, upon certain business combinations involving the Corporation, or upon approval by the Corporation’s shareholders of a complete liquidation or dissolution. Upon a change in control, a key member is deemed to have a two -year employment agreement with the Corporation, and all of his or her benefits vest under the Corporation’s compensation plans. If, at any time within two years of the change in control, his or her employment is terminated by the Corporation for any reason other than cause or disability, or by the key member for good reason, as such terms are defined in the agreement, then the key member is entitled to receive, among other benefits, a severance payment equal to two times ( three times for the Corporation’s President and CEO) annual salary and the average of the prior two years’ bonuses. Stock Repurchase The par value method of accounting is used for common stock repurchases. The following table summarizes shares repurchased and settled by the Corporation (in thousands, except share and per share data): 2018 2017 2016 Shares repurchased 755,221 1,462,936 1,082,938 Average price per share $ 38.96 $ 40.25 51.55 Cash purchase price $ (29,424 ) $ (58,887 ) $ (55,825 ) Purchases unsettled as of quarter end 354 1,382 — Prior year purchases settled in current year (1,382 ) — — Shares repurchased per cash flow $ (30,452 ) $ (57,505 ) $ (55,825 ) As of December 29, 2018 , approximately $48.6 million of the Corporation's Board of Directors' current repurchase authorization remained unspent.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 29, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation Under the Corporation’s 2017 Stock-Based Compensation Plan (the "Plan"), effective May 9, 2017, the Corporation may award options to purchase shares of the Corporation’s common stock and grant other stock awards to executives, managers, and key personnel. Upon shareholder approval of the Plan in May 2017, no future awards were granted under the Corporation’s 2007 Stock-Based Compensation Plan, but all outstanding awards previously granted under that plan shall remain outstanding in accordance with their terms. As of December 29, 2018 , there were approximately 2.6 million shares available for future issuance under the Plan. The Plan is administered by the Human Resources and Compensation Committee of the Board. Restricted stock units awarded under the Plan are expensed ratably over the vesting period of the awards. Stock options awarded to members under the Plan must be at exercise prices equal to or exceeding the fair market value of the Corporation’s common stock on the date of grant. Stock options are generally subject to four -year cliff vesting and must be exercised within 10 years from the date of grant. The Corporation measures stock-based compensation expense at grant date, based on the fair value of the award, and recognizes expense over the employees' requisite service periods. Stock-based compensation expense is the cost of stock options and time-based restricted stock units issued under the shareholder approved stock-based compensation plans and shares issued under the shareholder approved member stock purchase plans. Compensation cost charged against operations for the Plan and the 2017 MSPP described in "Note 11. Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity" in the Notes to Consolidated Financial Statements was as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Compensation cost $ 7,317 $ 7,750 $ 8,141 The total income tax benefit recognized in the income statement for share-based compensation arrangements was as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Income tax benefit $ 1,582 $ 2,581 $ 2,809 The stock-based compensation expense for the following year-end dates were estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions by grant year: December 29, 2018 December 30, 2017 December 31, 2016 Expected term 5 years 6 years 6 years Expected volatility (weighted-average) 34.12 % 38.07 % 38.96 % Expected dividend yield (weighted-average) 2.97 % 2.36 % 3.30 % Risk-free interest rate (weighted-average) 2.66 % 2.17 % 1.41 % Expected volatilities were based on historical volatility as the Corporation does not feel that future volatility over the expected term of the options is likely to differ from the past. The Corporation used a calculation method based on the historical daily frequency for a period of time equal to the expected term. The Corporation used the current dividend yield as there are no plans to substantially increase or decrease its dividends. The Corporation used historical exercise experience to determine the expected term. The risk-free interest rate was selected based on yields from treasury securities as published by the Federal Reserve equal to the expected term of the options. The following table summarizes the changes in outstanding stock options: Number of Shares Weighted Average Exercise Price Outstanding as of January 2, 2016 3,358,323 $ 32.09 Granted 877,277 32.18 Exercised (609,663 ) 30.52 Forfeited or Expired (121,602 ) 52.24 Outstanding as of December 31, 2016 3,504,335 $ 31.68 Granted 537,795 46.61 Exercised (446,817 ) 25.55 Forfeited or Expired (33,029 ) 40.81 Outstanding as of December 30, 2017 3,562,284 $ 34.63 Granted 788,301 38.53 Exercised (647,759 ) 26.28 Forfeited or Expired (75,821 ) 38.36 Outstanding as of December 29, 2018 3,627,005 $ 36.89 A summary of the Corporation’s non-vested stock options and changes during the year are presented below: Number of Shares Weighted Average Grant-Date Fair Value Non-vested as of December 30, 2017 1,935,838 $ 12.05 Granted 788,301 9.72 Vested (646,900 ) 11.14 Forfeited (75,821 ) 11.19 Non-vested as of December 29, 2018 2,001,418 $ 11.46 As of December 29, 2018 , there was $3.8 million of unrecognized compensation cost related to non-vested stock option awards, which the Corporation expects to recognize over a weighted-average period of 1.1 years. Information about stock options expected to vest or currently exercisable is as follows: December 29, 2018 Number of Shares Weighted-Average Exercise Price Weighted-Average Remaining Exercisable Period (years) Aggregate Intrinsic Value ($000s) Expected to vest 1,864,724 $ 39.92 8.0 $ 1,779 Exercisable 1,625,587 $ 33.21 4.4 $ 5,893 Other information for the last three years is as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Total fair value of shares vested $ 7,204 $ 8,057 $ 7,206 Total intrinsic value of options exercised $ 8,917 $ 7,270 $ 11,985 Cash received from exercise of stock options $ 17,021 $ 11,418 $ 18,609 Tax benefit realized from exercise of stock options $ 1,928 $ 2,423 $ 4,142 Weighted-average grant-date fair value of options granted $ 9.72 $ 14.41 $ 8.80 The Corporation has occasionally issued restricted stock units ("RSUs") to executives, managers, and key personnel. The RSUs vest at the end of three years after the grant date. No dividends are accrued on the RSUs. The share-based compensation expense associated with the RSUs is based on the quoted market price of HNI Corporation shares on the date of grant less the discounted present value of dividends not received on the shares and is amortized using the straight-line method from the grant date through the vesting date. The following table summarizes the changes in outstanding RSUs: Number of Shares Weighted-Average Grant Date Fair Value Outstanding as of January 2, 2016 38,500 $ 43.77 Granted 25,000 32.06 Vested — — Forfeited (3,000 ) 51.54 Outstanding as of December 31, 2016 60,500 $ 38.54 Granted — — Vested (18,500 ) 35.36 Forfeited (5,000 ) 51.54 Outstanding as of December 30, 2017 37,000 $ 38.38 Granted 23,224 40.44 Vested (12,000 ) 51.54 Forfeited (2,500 ) 28.90 Outstanding as of December 29, 2018 45,724 $ 36.49 As of December 29, 2018 , there was $0.8 million of unrecognized compensation cost related to RSUs, which the Corporation expects to recognize over a weighted-average period of 1.0 year. The total value of shares vested was as follows (in thousands): 2018 2017 2016 Value of shares vested $ 618 $ 654 $ — The following table details deferred compensation, which is a combination of cash and stock, and the affected line item in the Consolidated Balance Sheets where deferred compensation is presented (in thousands): December 29, 2018 December 30, 2017 Current maturities of other long-term obligations $ 2,356 $ 719 Other long-term liabilities 8,729 11,581 Total deferred compensation $ 11,085 $ 12,300 Total fair-market value of deferred compensation $ 7,857 $ 8,885

Retirement Benefits

Retirement Benefits	12 Months Ended
	Dec. 29, 2018
Retirement Benefits [Abstract]
Retirement Benefits	Retirement Benefits The Corporation has a defined contribution retirement plan covering substantially all employees. The Corporation's annual contribution to the plan is based on employee eligible earnings. A portion of the contribution is also based on results of operations, and a portion is contributed in the form of common stock of the Corporation. The following table reconciles the annual contribution (in thousands): 2018 2017 2016 Stock contribution $ 7,174 $ 7,327 $ 7,170 Cash contribution 21,413 23,834 25,349 Total annual contribution $ 28,587 $ 31,161 $ 32,519

Post-Retirement Health Care

Post-Retirement Health Care	12 Months Ended
	Dec. 29, 2018
Retirement Benefits [Abstract]
Post-Retirement Health Care	Post-Retirement Health Care The Corporation offers a fixed subsidy to certain retirees who choose to participate in a third party insurance plan selected by the Corporation. Guidance on employers’ accounting for other post-retirement plans requires recognition of the overfunded or underfunded status on the balance sheet. Under this guidance, gains and losses, prior service costs and credits, and any remaining transition amounts under previous guidance not yet recognized through net periodic benefit cost are recognized in accumulated other comprehensive income (loss), net of tax effects, until they are amortized as a component of net periodic benefit cost. Also, the measurement date – the date at which the benefit obligation and plan assets are measured – is required to be the Corporation’s fiscal year-end. The following table sets forth the activity and reporting location of the benefit obligation and plan assets (in thousands): 2018 2017 Change in benefit obligation Benefit obligation at beginning of year $ 22,933 $ 21,153 Service cost 853 741 Interest cost 789 825 Benefits paid (1,570 ) (1,003 ) Actuarial (gain) loss (3,453 ) 1,217 Benefit obligation at end of year $ 19,552 $ 22,933 Change in plan assets Fair value at beginning of year $ — $ — Actual return on assets — — Employer contribution 1,570 1,003 Transferred out — — Benefits paid (1,570 ) (1,003 ) Fair value at end of year $ — $ — Funded Status of Plan $ (19,552 ) $ (22,933 ) Amounts recognized in the Statement of Financial Position consist of: Current liabilities $ 1,057 $ 1,050 Non-current liabilities $ 18,495 $ 21,883 Amounts recognized in Accumulated Other Comprehensive Income (before tax) consist of: Actuarial (gain) loss $ (14 ) $ 3,565 Change in Accumulated Other Comprehensive Income (before tax): Amount disclosed at beginning of year $ 3,565 $ 2,373 Actuarial (gain) loss (3,453 ) 1,217 Amortization of transition amount (126 ) (25 ) Amount disclosed at end of year $ (14 ) $ 3,565 Estimated future benefit payments are as follows (in thousands): Fiscal 2019 $ 1,056 Fiscal 2020 $ 1,053 Fiscal 2021 $ 1,051 Fiscal 2022 $ 1,065 Fiscal 2023 $ 1,085 Fiscal 2024 – 2028 $ 5,885 Expected contributions are as follows (in thousands): Fiscal 2019 $ 1,056 The discount rate is set at the measurement date to reflect the yield of a portfolio of high quality, fixed income debt instruments. The discount rate used was as follows: 2018 2017 2016 Discount rate 4.2 % 3.5 % 4.0 % The Corporation's payment for these benefits is a fixed subsidy per the plan; therefore, healthcare trend rates have no impact on the Corporation’s cost. There were no funds designated as plan assets. A discount rate of 4.2 percent was used to determine net periodic benefit costs for 2019 . The following table sets forth the components of net periodic benefit costs (in thousands): 2019 Service cost $ 680 Interest cost 795 Amortization of net (gain) loss — Net periodic post-retirement benefit cost $ 1,475

Leases

Leases	12 Months Ended
	Dec. 29, 2018
Leases [Abstract]
Leases	Leases The Corporation leases certain showrooms, office space, warehouse and plant facilities and equipment. Commitments for minimum rentals under non-cancelable leases are as follows (in thousands): Operating Leases 2019 $ 24,387 2020 18,250 2021 13,324 2022 9,082 2023 6,228 Thereafter 10,469 Total minimum lease payments $ 81,740 There are no capitalized leases as of December 29, 2018 and December 30, 2017 . Rent expense was as follows (in thousands): 2018 2017 2016 Rent expense $ 31,027 $ 32,158 $ 35,288 There was no contingent rent expense under operating leases for the years 2018 , 2017 , and 2016 . As part of the Corporation's continued efforts to drive efficiency and simplification, the Corporation entered into a sale-leaseback transaction in the first quarter of 2018, selling a manufacturing facility and subsequently leasing back a portion of the facility for a term of 10 years . The net proceeds from the sale of the facility of $16.9 million are reflected in "Proceeds from sale and license of property, plant, equipment, and intangibles" in the Consolidated Statements of Cash Flows. In accordance with ASC 840, Leases , the $5.1 million gain on the sale of the facility was deferred and is being amortized as a reduction to rent expense evenly over the term of the lease. As of December 29, 2018 , the current portion of the deferred gain is $0.5 million and included within "Accounts payable and accrued expenses" and the long-term portion of the deferred gain is $4.2 million and included within "Other Long-Term Liabilities" in the Consolidated Balance Sheets. The transaction did not have a material impact to the Consolidated Statements of Comprehensive Income.

Guarantees, Commitments and Con

Guarantees, Commitments and Contingencies	12 Months Ended
	Dec. 29, 2018
Commitments and Contingencies Disclosure [Abstract]
Guarantees, Commitments and Contingencies	Guarantees, Commitments, and Contingencies The Corporation utilizes letters of credit and surety bonds in the amount of $24 million to back certain insurance policies and payment obligations. The Corporation utilizes trade letters of credit and banker's acceptances in the amount of $2 million to guarantee certain payments to overseas suppliers. The letters of credit, bonds, and banker's acceptances reflect fair value as a condition of their underlying purpose and are subject to competitively determined fees. The Corporation initiated litigation in Iowa on August 15, 2017 against the purchasers of Artcobell for amounts owed in connection with the sale of Artcobell. Artcobell initiated litigation against the Corporation in Texas on June 14, 2017 regarding a dispute arising after the sale of Artcobell. On October 9, 2018, the Corporation resolved all claims related to the disputes. The Corporation is not required to make any payments and recorded an immaterial recovery in the fourth quarter of 2018. The Corporation has contingent liabilities which have arisen in the ordinary course of its business, including liabilities relating to pending litigation, environmental remediation, taxes, and other claims. It is the Corporation's opinion, after consultation with legal counsel, that liabilities, if any, resulting from these matters are not expected to have a material adverse effect on the Corporation's financial condition, cash flows, or on the Corporation's quarterly or annual operating results when resolved in a future period.

Reportable Segment Information

Reportable Segment Information	12 Months Ended
	Dec. 29, 2018
Segment Reporting [Abstract]
Reportable Segment Information	Reportable Segment Information Management views the Corporation as being in two reportable segments based on industries: office furniture and hearth products, with the former being the principal segment. The aggregated office furniture segment manufactures and markets a broad line of commercial and home office furniture which includes storage products, desks, credenzas, chairs, tables, bookcases, freestanding office partitions and panel systems, and other related products. The hearth products segment manufactures and markets a broad line of gas, electric, wood, and biomass burning fireplaces, inserts, stoves, facings, and accessories, principally for the home. For purposes of segment reporting, intercompany sales between segments are not material, and operating profit is income before income taxes exclusive of certain unallocated corporate expenses. These unallocated general corporate expenses include the net costs of the Corporation’s corporate operations. Management views interest income and expense as corporate financing costs and not as a reportable segment cost. In addition, management applies an effective income tax rate to its consolidated income before income taxes so income taxes are not reported or viewed internally on a segment basis. Identifiable assets by segment are those assets applicable to the respective industry segments. Corporate assets consist principally of cash and cash equivalents, short-term investments, long-term investments, IT infrastructure, and corporate office real estate and related equipment. No geographic information for revenues from external customers or for long-lived assets is disclosed since the Corporation’s primary market and capital investments are concentrated in the United States. Reportable segment data reconciled to the Corporation's consolidated financial statements was as follows (in thousands): 2018 2017 2016 Net Sales: Office furniture $ 1,706,092 $ 1,660,723 $ 1,703,885 Hearth products 551,803 515,159 499,604 Total $ 2,257,895 $ 2,175,882 $ 2,203,489 Income Before Income Taxes: Office furniture (a) $ 79,323 $ 50,176 $ 117,397 Hearth products (b) 91,367 83,649 69,960 General corporate (42,517 ) (57,135 ) (53,665 ) Operating income 128,173 76,690 133,692 Interest expense, net 9,448 6,078 4,781 Total $ 118,725 $ 70,612 $ 128,911 Depreciation and Amortization Expense: Office furniture $ 44,303 $ 48,435 $ 45,088 Hearth products 8,171 10,109 12,486 General corporate 22,314 14,328 11,373 Total $ 74,788 $ 72,872 $ 68,947 Capital Expenditures (including capitalized software): Office furniture $ 47,860 $ 79,458 $ 65,944 Hearth products 8,854 17,356 11,217 General corporate 6,982 30,577 42,423 Total $ 63,696 $ 127,391 $ 119,584 Identifiable Assets: Office furniture $ 797,574 $ 821,767 $ 749,145 Hearth products 352,060 347,189 340,494 General corporate 252,210 222,594 240,595 Total $ 1,401,844 $ 1,391,550 $ 1,330,234 (a) Included in operating profit for the office furniture segment are pretax charges of $16.4 million , $32.5 million , and $10.9 million , for closing of facilities and impairment charges in 2018 , 2017 , and 2016 , respectively. (b) Included in operating profit for the hearth products segment are pretax charges of $1.2 million and $4.9 million for closing facilities in 2018 and 2017 , and $5.5 million related to exiting a line of business in 2016 . The Corporation's net sales by product category were as follows (in thousands): 2018 2017 2016 Systems and storage $ 1,015,900 $ 1,069,518 $ 1,072,518 Seating 598,722 536,501 539,839 Other 91,470 54,704 91,528 Hearth products 551,803 515,159 499,604 $ 2,257,895 $ 2,175,882 $ 2,203,489

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 29, 2018
Accounting Policies [Abstract]
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	As a result of the required annual impairment assessment performed in the fourth quarter of 2018 , the Corporation determined the fair value of a reporting unit within the office furniture segment was below its carrying value. This reporting unit had triggering events in both the second and third quarters of 2018 due to lower projected operating results, and was tested with interim quantitative impairment tests that resulted in no impairment either time. In the fourth quarter of 2018, a further decline in the estimated fair value of this reporting unit was primarily driven by reduced long-term margin expectations and resulted in an impairment. The projections used in the impairment model reflected management's assumptions regarding revenue growth rates, economic and market trends, cost structure, investments required for product enhancements, and other expectations about the anticipated short-term and long-term operating results of the reporting unit.
Fiscal Year-end	Fiscal year-end – The Corporation follows a 52/53 -week fiscal year, which ends on the Saturday nearest December 31. Fiscal year 2018 ended on December 29, 2018 , fiscal year 2017 ended on December 30, 2017 , and fiscal year 2016 ended on December 31, 2016 . The financial statements for fiscal years 2018, 2017, and 2016 are on a 52-week basis. A 53-week year occurs approximately every sixth year.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts and transactions of the Corporation and its subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation.
Cash, Cash Equivalents and Investments	Cash, Cash Equivalents, and Investments Cash and cash equivalents generally consist of cash and money market accounts. The fair value approximates the carrying value due to the short duration of the securities. These securities have original maturity dates not exceeding three months. The Corporation has short-term investments with maturities of less than one year and investments with maturities greater than one year included in "Other Assets" in the Consolidated Balance Sheets. Management classifies investments in marketable securities at the time of purchase and reevaluates such classification at each balance sheet date. Debt securities, including government and corporate bonds, are classified as available-for-sale and stated at current market value with unrealized gains and losses included as a separate component of equity, net of any related tax effect. The specific identification method is used to determine realized gains and losses on the trade date.
Receivables	Receivables The allowance for doubtful accounts is developed based on several factors including overall customer credit quality, historical write-off experience, and specific account analyses projecting the ultimate collectability of the account. As such, these factors may change over time causing the allowance level to adjust accordingly.
Inventories	Inventories The Corporation values its inventory at the lower of cost or net realizable value. Inventories included in the Consolidated Balance Sheets consisted of the following (in thousands): December 29, 2018 December 30, 2017 Finished products $ 97,398 $ 101,715 Materials and work in process 94,161 81,202 Last-in,first-out ("LIFO") allowance (34,381 ) (27,234 ) Total inventories $ 157,178 $ 155,683 Inventory valued by the LIFO costing method 81.40 % 83.36 % During 2018, inventory quantities were reduced at certain reporting units. This reduction resulted in a liquidation of LIFO inventory quantities carried at higher or lower costs prevailing in prior years as compared with the cost of current year purchases, the effect of which decreased cost of goods sold by approximately $0.5 million in 2018. There was no LIFO decrement in 2017. If the FIFO method had been in use, inventories would have been $34.4 million and $27.2 million higher than reported as of December 29, 2018 and December 30, 2017 , respectively.
Property, Plant and Equipment	Property, Plant, and Equipment Property, plant, and equipment are carried at cost. Expenditures for repairs and maintenance are expensed as incurred. Major improvements that materially extend the useful lives of the assets are capitalized. Depreciation has been computed using the straight-line method over estimated useful lives: land improvements, 10 – 20 years; buildings, 10 – 40 years; and machinery and equipment, 3 – 12 years.
Long-Lived Assets	Long-Lived Assets The Corporation evaluates long-lived assets for indicators of impairment as events or changes in circumstances occur indicating that an impairment risk may be present. The judgments regarding the existence of impairment are based on business and market conditions, operational performance, and estimated future cash flows. If the carrying value of a long-lived asset is considered impaired, an impairment charge is recorded to adjust the asset to its estimated fair value. Asset impairment charges associated with the Corporation’s long-lived assets are discussed in "Note 4. Restructuring and Impairment Charges" in the Notes to Consolidated Financial Statements.
Goodwill and Intangible Assets	Goodwill and Other Intangible Assets The Corporation evaluates its goodwill for impairment on an annual basis during the fourth quarter or whenever indicators of impairment exist. Asset impairment charges associated with the Corporation’s goodwill impairment testing are discussed in "Note 7. Goodwill and Other Intangible Assets" in the Notes to Consolidated Financial Statements. The Corporation reviews goodwill at the reporting unit level within its office furniture and hearth products operating segments. These reporting units constitute components for which discrete financial information is available and regularly reviewed by segment management. The accounting standards for goodwill permit entities to first assess qualitative factors to determine whether it is more likely than not the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform a quantitative goodwill impairment test. If the quantitative test is required, the Corporation estimates the fair value of its reporting units. In estimating the fair value, the Corporation relies on an average of the income approach and the market approach. This estimated fair value is compared to the carrying value of the reporting unit and an impairment is recorded if the estimate is less than the carrying value. In the income approach, the estimate of fair value of each reporting unit is based on management’s projection of revenues, gross margin, operating costs, and cash flows considering historical and estimated future results, general economic and market conditions, as well as the impact of planned business and operational strategies. The valuations employ present value techniques to measure fair value and consider market factors. In the market approach, the Corporation utilizes the guideline company method, which involves calculating valuation multiples based on operating data from guideline publicly-traded companies. These multiples are then applied to the operating data for the reporting units and adjusted for factors similar to those used in the discounted cash flow analysis. Management believes the assumptions used for the impairment test are consistent with those utilized by a market participant in performing similar valuations of its reporting units. Management bases its fair value estimates on assumptions they believe to be reasonable at the time, but such assumptions are subject to inherent uncertainty. Actual results may differ from those estimates.
Product Warranties	Product Warranties The Corporation issues certain warranty policies on its office furniture and hearth products that provide for repair or replacement of any covered product or component that fails during normal use because of a defect in design, materials, or workmanship. Allowances have been established for the anticipated future costs associated with the Corporation's warranty programs. A warranty allowance is determined by recording a specific allowance for known warranty issues and an additional allowance for unknown claims expected to be incurred based on historical claims experience. Actual claims incurred could differ from the original estimates, requiring adjustments to the allowance.
Revenue Recognition	Revenue Recognition Freight Expense Freight expense on shipments to customers were recorded in "Selling and administrative expenses" on the Consolidated Statements of Comprehensive Income as follows (in thousands): 2018 2017 2016 Freight expense $ 134,190 $ 119,096 $ 115,157 Performance Obligations The Corporation recognizes revenue for sales of office furniture and hearth products at a point in time following the transfer of control of such products to the customer, which typically occurs upon shipment of the product. In certain circumstances, transfer of control to the customer does not occur until the goods are received by the customer or upon installation and/or customer acceptance, depending on the terms of the underlying contracts. Contracts typically have a duration of less than one year and normally do not include a significant financing component. Generally, payment is due within 30 days of invoicing. Significant Judgments The Corporation uses significant judgment throughout the year in estimating the reduction in net sales driven by rebate and marketing programs. Judgments made include expected sales levels and utilization of funds. However, this judgment factor is significantly reduced at the end of each year when sales volumes and the impact to rebate and marketing programs are known and recorded as the programs typically don't extend multiple years. Accounting Policies and Practical Expedients Elected The Corporation elected to use the modified-retrospective method of adopting the new standard on revenue recognition. The new standard has been applied to all contracts not completed as of December 30, 2017 , the end of the Corporation’s fiscal 2017 . The impact of the Corporation's transition adjustment for the new revenue recognition guidance was not material to the Corporation's results of operations or financial position. The additional disclosures required as a result of adopting the new revenue recognition guidance were material to the Corporation's financial statements. The Corporation elected the following accounting policies as a result of adopting the new standard on revenue recognition: Shipping and Handling Activities - The Corporation has elected to apply the accounting policy election permitted in ASC 606-10-25-18B, which allows an entity to account for shipping and handling activities that occur after control is transferred as fulfillment activities. The Corporation accrues for shipping and handling costs at the same time revenue is recognized, which is in accordance with the policy election. When shipping and handling activities occur prior to the customer obtaining control of the good(s), they are considered fulfillment activities rather than a performance obligation and the costs are accrued for as incurred. Sales Taxes - The Corporation has elected to apply the accounting policy election permitted in ASC 606-10-32-2A, which allows an entity to exclude from the measurement of the transaction price all taxes assessed by a governmental authority associated with the transaction, including sales, use, excise, value-added, and franchise taxes (collectively referred to as sales taxes). This allows the Corporation to present revenue net of these certain types of taxes. These policies have been applied consistently to all revenue transactions. The Corporation has elected the following practical expedients as a result of adopting the new standard on revenue recognition: Incremental Costs of Obtaining a Contract - The Corporation has elected the practical expedient permitted in ASC 340-40-25-4, which permits an entity to recognize incremental costs to obtain a contract as an expense when incurred if the amortization period will be less than one year. The Corporation will apply this practical expedient when the requirements to apply it are met. Significant Financing Component - The Corporation has elected the practical expedient permitted in ASC 606-10-32-18, which allows an entity to not adjust the promised amount of consideration for the effects of a significant financing component if a contract has a duration of one year or less. As the Corporation's contracts are typically less than one year in length, consideration will not be adjusted. Remaining Performance Obligation - The Corporation's backlog orders are typically cancelable for a period of time and almost all of our contracts have an original duration of one year or less. As a result, we have elected the practical expedient not to disclose our remaining performance obligation. The backlog disclosed is typically fulfilled within one or two quarters. These accounting policies and practical expedients have been applied consistently to all revenue transactions.
Product Development Costs	Product Development Costs Product development costs relating to development of new products and processes, including significant improvements and refinements to existing products, are expensed as incurred. These costs include salaries, contractor fees, building costs, and administrative fees.
Stock-Based Compensation	Stock-Based Compensation The Corporation measures the cost of employee services in exchange for an award of equity instruments based on the grant-date fair value of the award and recognizes cost over the requisite service period.
Income Taxes	Income Taxes The Corporation uses an asset and liability approach that takes into account guidance related to uncertain tax positions and requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in the Corporation’s financial statements or tax returns. Deferred income taxes are provided to reflect differences between the tax bases of assets and liabilities and their reported amounts in the consolidated financial statements.
Earnings Per Share	Earnings Per Share Basic earnings per share are based on the weighted-average number of common shares outstanding during the year. Shares potentially issuable under stock options, restricted stock units, and common stock equivalents under the Corporation's deferred compensation plans have been considered outstanding for purposes of the diluted earnings per share calculation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The critical areas requiring use of management estimates relate to goodwill and intangibles, accruals for self-insured medical claims, workers’ compensation, legal contingencies, general liability and auto insurance claims, valuation of long-lived assets, and estimates of income taxes. Other significant areas requiring use of management estimates relate to allowance for doubtful accounts, inventory allowances, marketing program accruals, warranty accruals, and useful lives for depreciation and amortization. Actual results could differ from those estimates.
Self-Insurance	Self-Insurance The Corporation is primarily self-insured for general, auto, and product liability, workers’ compensation, and certain employee health benefits. Certain risk exposures are mitigated through the use of independent third party stop loss insurance coverages. The general, auto, product, and workers’ compensation liabilities are managed using a wholly-owned insurance captive and the related liabilities are included in the Consolidated Balance Sheets as follows (in thousands): December 29, 2018 December 30, 2017 General, auto, product, and workers' compensation liabilities $ 30,227 $ 27,591 The Corporation’s policy is to accrue amounts in accordance with the actuarially determined liabilities. The actuarial valuations are based on historical information along with certain assumptions about future events. Changes in assumptions for such matters as legal actions, medical cost inflation, and magnitude of change in actual experience development could cause these estimates to change in the future.
Foreign Currency Translations	Foreign Currency Translations Foreign currency financial statements of foreign operations, where the local currency is the functional currency, are translated using exchange rates in effect at period end for assets and liabilities and average exchange rates during the period for results of operations. Related translation adjustments are reported as a component of Shareholders’ Equity. Gains and losses on foreign currency transactions are included in "Selling and administrative expenses" in the Consolidated Statements of Comprehensive Income.
Reclassifications	Reclassifications Certain reclassifications have been made within the financial statements to conform to the current year presentation.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Standards In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) . The new standard replaces most existing revenue recognition guidance in U.S. GAAP. The core principle of the ASU requires companies to reevaluate when revenue is recorded on a transaction based upon newly defined criteria, either at a point in time or over time as goods or services are delivered. The ASU requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and estimates, and changes in those estimates. The FASB has issued ASU No. 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations , ASU No. 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing , and ASU No. 2016-12, Revenue from Contracts with Customers: Narrow Scope Improvements and Practical Expedients to provide further clarification and guidance. The Corporation implemented the new standard in the first quarter of fiscal 2018 using the modified-retrospective method, which required the new guidance to be applied prospectively to revenue transactions completed on or after the effective date. Given the nature of the Corporation's revenue transactions, the new guidance did not have a material impact on the Corporation's results of operations or financial position. All necessary changes required by the new standard, including those to the Corporation's accounting policies, controls, and disclosures, have been identified and implemented as of the beginning of fiscal 2018. See "Note 3. Revenue from Contracts with Customers" in the Notes to Consolidated Financial Statements for further information. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows - Classification of Certain Cash Receipts and Cash Payments. The new standard provides classification guidance on eight cash flow issues including debt prepayment, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlements of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, and distributions received from equity method investees. The Corporation implemented the new standard in the first quarter of fiscal 2018. This standard did not have a material effect on the consolidated financial statements or related disclosures. In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other Than Inventory . The new standard requires an entity to recognize the income tax consequences of intra-entity transfers of assets other than inventory when the transfer occurs. The Corporation implemented the new standard in the first quarter of fiscal 2018. This standard did not have a material effect on the consolidated financial statements or related disclosures. In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business . The new standard amends ASC 805, Business Combinations. This ASU provides a new framework for determining whether transactions should be accounted for as acquisitions (or disposals) of a group of assets or of a business. The Corporation implemented the new standard in the first quarter of fiscal 2018 on a prospective basis. The standard did not have a material effect on the consolidated financial statements or related disclosures. In March 2017, the FASB issued ASU No. 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost . The new standard requires an entity with defined benefit and post-retirement benefit plans to present the service cost component of the net periodic benefit cost in the same income statement line item or items as other compensation costs arising from services rendered by employees during the period. All other components of net periodic benefit cost will be presented outside of operating income, if a subtotal is presented. The Corporation implemented the new standard in the first quarter of fiscal 2018 and it was applied retrospectively to each period presented. This standard did not have a material effect on the consolidated financial statements or related disclosures.
Fair Value Measurements of Financial Instruments	For recognition purposes, on a recurring basis, the Corporation is required to measure at fair value its marketable securities, derivative financial instruments, variable-rate and fixed-rate debt obligations, and deferred stock-based compensation. The marketable securities are comprised of money market funds, government securities, and corporate bonds. When available, the Corporation uses quoted market prices to determine fair value and classifies such measurements within Level 1. Where market prices are not available, the Corporation makes use of observable market-based inputs (prices or quotes from published exchanges and indexes) to calculate fair value using the market approach, in which case the measurements are classified within Level 2.
Reportable Segment Information	Management views the Corporation as being in two reportable segments based on industries: office furniture and hearth products, with the former being the principal segment. The aggregated office furniture segment manufactures and markets a broad line of commercial and home office furniture which includes storage products, desks, credenzas, chairs, tables, bookcases, freestanding office partitions and panel systems, and other related products. The hearth products segment manufactures and markets a broad line of gas, electric, wood, and biomass burning fireplaces, inserts, stoves, facings, and accessories, principally for the home. For purposes of segment reporting, intercompany sales between segments are not material, and operating profit is income before income taxes exclusive of certain unallocated corporate expenses. These unallocated general corporate expenses include the net costs of the Corporation’s corporate operations. Management views interest income and expense as corporate financing costs and not as a reportable segment cost. In addition, management applies an effective income tax rate to its consolidated income before income taxes so income taxes are not reported or viewed internally on a segment basis. Identifiable assets by segment are those assets applicable to the respective industry segments. Corporate assets consist principally of cash and cash equivalents, short-term investments, long-term investments, IT infrastructure, and corporate office real estate and related equipment. No geographic information for revenues from external customers or for long-lived assets is disclosed since the Corporation’s primary market and capital investments are concentrated in the United States.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 29, 2018
Accounting Policies [Abstract]
Schedule of Cash, Cash Equivalents and Investments	Cash, cash equivalents, and investments consisted of the following (in thousands): December 29, 2018 December 30, 2017 Cash and cash equivalents Short-term investments Long-term investments Cash and cash equivalents Short-term investments Long-term investments Available-for-sale securities: Debt securities — 1,327 10,677 — 2,015 10,479 Cash and money market accounts 76,819 — — 23,348 — — Total $ 76,819 $ 1,327 $ 10,677 $ 23,348 $ 2,015 $ 10,479 The following table summarizes the amortized cost basis of the debt securities (in thousands): December 29, 2018 December 30, 2017 Amortized cost basis of debt securities $ 12,202 $ 12,660
Allowance for Doubtful Accounts	The following table summarizes the change in the allowance for doubtful accounts (in thousands): Balance at beginning of period Adjustments to allowance Amounts written off, net of recoveries and other adjustments Divestitures Balance at end of period Year ended December 29, 2018 $ 1,904 $ 2,440 $ 477 $ — $ 3,867 Year ended December 30, 2017 $ 2,140 $ 846 $ 1,082 $ — $ 1,904 Year ended December 31, 2016 $ 4,287 $ (357 ) $ 1,598 $ 192 $ 2,140
Schedule Of Inventory Current Table	Inventories included in the Consolidated Balance Sheets consisted of the following (in thousands): December 29, 2018 December 30, 2017 Finished products $ 97,398 $ 101,715 Materials and work in process 94,161 81,202 Last-in,first-out ("LIFO") allowance (34,381 ) (27,234 ) Total inventories $ 157,178 $ 155,683 Inventory valued by the LIFO costing method 81.40 % 83.36 %
Schedule of Property, Plant and Equipment	Total depreciation expense was as follows (in thousands): 2018 2017 2016 Depreciation expense $ 51,063 $ 56,494 $ 57,171
Schedule of Accounts Payable and Accrued Liabilities	Accounts payable and accrued expenses are reflected in the Consolidated Balance Sheets and were as follows (in thousands): December 29, 2018 December 30, 2017 Trade accounts payable $ 221,395 $ 235,577 Compensation 52,227 47,277 Profit sharing and retirement expense 28,300 30,884 Marketing expenses 36,529 41,751 Freight 13,892 13,121 Other accrued expenses 76,522 81,518 $ 428,865 $ 450,128
Schedule of Product Warranties	Activity associated with warranty obligations was as follows (in thousands): 2018 2017 2016 Balance at beginning of period $ 15,388 $ 15,250 $ 16,227 Accruals settled from divestiture — — (538 ) Accruals for warranties issued during period 22,697 20,075 20,055 Adjustments related to pre-existing warranties 233 194 604 Settlements made during the period (22,868 ) (20,131 ) (21,098 ) Balance at end of period $ 15,450 $ 15,388 $ 15,250 The following table summarizes when these estimated settlements are expected to be paid (in thousands): December 29, 2018 December 30, 2017 Current - in the next twelve months $ 9,455 $ 9,524 Long-term - beyond one year 5,995 5,864 $ 15,450 $ 15,388
Schedule of Product Development Expense	The amounts charged against income and recorded in "Selling and administrative expenses" on the Consolidated Statements of Comprehensive Income were as follows (in thousands): 2018 2017 2016 Product development costs $ 33,420 $ 31,846 $ 28,089
Schedule of Freight Expense	Freight expense on shipments to customers were recorded in "Selling and administrative expenses" on the Consolidated Statements of Comprehensive Income as follows (in thousands): 2018 2017 2016 Freight expense $ 134,190 $ 119,096 $ 115,157
Schedule of Earnings Per Share, Basic and Diluted	The following table reconciles the numerators and denominators used in the calculation of basic and diluted earnings per share ("EPS") (in thousands, except per share data): 2018 2017 2016 Numerator: Numerator for both basic and diluted EPS attributable to HNI Corporation net income $ 93,377 $ 89,795 $ 85,577 Denominators: Denominator for basic EPS weighted-average common shares outstanding 43,639 43,839 44,414 Potentially dilutive shares from stock-based compensation plans 689 1,001 1,088 Denominator for diluted EPS 44,328 44,840 45,502 Earnings per share – basic $ 2.14 $ 2.05 $ 1.93 Earnings per share – diluted $ 2.11 $ 2.00 $ 1.88
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The weighted-average common stock equivalents presented above do not include the effect of the common stock equivalents in the table below because their inclusion would be anti-dilutive. 2018 2017 2016 Common stock equivalents excluded because their inclusion would be anti-dilutive 1,507,870 809,420 416,142
Schedule of Insurance Reserves	The general, auto, product, and workers’ compensation liabilities are managed using a wholly-owned insurance captive and the related liabilities are included in the Consolidated Balance Sheets as follows (in thousands): December 29, 2018 December 30, 2017 General, auto, product, and workers' compensation liabilities $ 30,227 $ 27,591

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 29, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Revenue from contracts with customers disaggregated by sales channel and by segment is as follows (in thousands): Segment December 29, 2018 December 30, 2017 Supplies-driven channel Office Furniture $ 904,292 $ 836,733 Contract channel Office Furniture 801,800 823,990 Hearth Hearth Products 551,803 515,159 Net sales $ 2,257,895 $ 2,175,882
Contract with Customer, Asset and Liability	Contract assets and liabilities were as follows (in thousands): December 29, December 30, Trade receivables (1) $ 259,075 $ 260,455 Contract assets (current) (2) $ 529 $ 300 Contract assets (long-term) (3) $ 2,188 $ 2,350 Contract liabilities (4) $ 44,858 $ 54,527 The index below indicates the line item in the Consolidated Balance Sheets where contract assets and contract liabilities are reported: (1) "Receivables" (2) "Prepaid expenses and other current assets" (3) "Other Assets" (4) "Accounts payable and accrued expenses" Changes in contract asset and contract liability balances during the year ended December 29, 2018 were as follows (in thousands): Contract assets increase (decrease) Contract liabilities (increase) decrease Contract assets recognized $ 2,100 $ — Reclassification of contract assets to contra revenue (483 ) — Contract asset impairment (1,550 ) — Contract liabilities recognized and recorded to contra revenue as a result of performance obligations satisfied — (127,454 ) Contract liabilities paid — 132,909 Cash received in advance and not recognized as revenue — (54,167 ) Reclassification of cash received in advance to revenue as a result of performance obligations satisfied — 58,304 Impact of business combination — 77 Net change $ 67 $ 9,669

Restructuring and Impairment _2

Restructuring and Impairment Charges (Tables)	12 Months Ended
	Dec. 29, 2018
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	Restructuring costs, goodwill and long-lived asset impairments, and a valuation allowance recorded in the Consolidated Statements of Comprehensive Income are as follows (in thousands): 2018 2017 2016 Cost of sales - accelerated depreciation $ — $ 10,327 $ 5,302 Restructuring charges $ 2,325 $ 6,205 $ 5,229 Goodwill and long-lived asset impairments 15,200 20,947 5,776 Valuation allowance of long-term note receivable (1,800 ) 10,264 — Restructuring and impairment charges $ 15,725 $ 37,416 $ 11,005
Schedule of Restructuring Reserve by Type of Cost	The following is a summary of changes in restructuring accruals (in thousands): Severance Costs Facility Exit Costs & Other Total Restructuring allowance as of January 2, 2016 $ 206 $ 15 $ 221 Restructuring charges 3,883 1,346 5,229 Cash payments (1,385 ) (1,361 ) (2,746 ) Restructuring allowance as of December 31, 2016 2,704 — 2,704 Restructuring charges 1,436 4,769 6,205 Cash payments (2,797 ) (4,253 ) (7,050 ) Restructuring allowance as of December 30, 2017 1,343 516 1,859 Restructuring charges 355 1,970 2,325 Cash payments (1,562 ) (2,336 ) (3,898 ) Restructuring allowance as of December 29, 2018 $ 136 $ 150 $ 286

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 29, 2018
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash Flow, Supplemental Disclosures	The Corporation's cash payments for interest, income taxes, and non-cash investing and financing activities are as follows (in thousands): 2018 2017 2016 Cash paid for: Interest paid, net of capitalized interest $ 9,882 $ 6,236 $ 6,644 Income taxes paid $ 11,465 $ 13,733 $ 23,120 Changes in accrued expenses due to: Purchases of property and equipment $ 5,895 $ (10,370 ) $ 3,599 Purchases of capitalized software $ (2,497 ) $ (237 ) $ 603

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets and Goodwill	Goodwill and other intangible assets included in the Consolidated Balance Sheets consisted of the following (in thousands): December 29, 2018 December 30, 2017 Goodwill $ 270,788 $ 279,505 Definite-lived intangible assets 163,714 182,186 Indefinite-lived intangible assets 28,788 29,201 Total goodwill and other intangible assets $ 463,290 $ 490,892
Schedule of Goodwill	The changes in the carrying amount of goodwill, by reporting segment, are as follows (in thousands): Office Furniture Hearth Products Total Balance as of December 31, 2016 Goodwill $ 137,889 $ 183,199 $ 321,088 Accumulated impairment losses (30,246 ) (143 ) (30,389 ) Net goodwill balance as of December 31, 2016 107,643 183,056 290,699 Impairment losses (4,838 ) — (4,838 ) Foreign currency translation adjustment (44 ) — (44 ) Impairment loss due to closure of an office furniture brand (6,312 ) — (6,312 ) Balance as of December 30, 2017 Goodwill 128,657 183,199 311,856 Accumulated impairment losses (32,208 ) (143 ) (32,351 ) Net goodwill balance as of December 30, 2017 96,449 183,056 279,505 Goodwill acquired during the year — 3,463 3,463 Impairment losses (12,168 ) — (12,168 ) Foreign currency translation adjustment (12 ) — (12 ) Balance as of December 29, 2018 Goodwill 128,645 186,662 315,307 Accumulated impairment losses (44,376 ) (143 ) (44,519 ) Net goodwill balance as of December 29, 2018 $ 84,269 $ 186,519 $ 270,788
Schedule of Finite-Lived Intangible Assets by Major Class	The table below summarizes amortizable definite-lived intangible assets, which are reflected in "Goodwill and Other Intangible Assets" in the Corporation’s Consolidated Balance Sheets (in thousands): December 29, 2018 December 30, 2017 Gross Accumulated Amortization Net Gross Accumulated Amortization Net Patents $ 40 $ 34 $ 6 $ 40 $ 26 $ 14 Software 170,274 49,561 120,713 167,105 34,792 132,313 Trademarks and trade names 7,564 2,721 4,843 7,564 2,061 5,503 Customer lists and other 103,840 65,688 38,152 106,090 61,734 44,356 Net definite-lived intangible assets $ 281,718 $ 118,004 $ 163,714 $ 280,799 $ 98,613 $ 182,186
Finite-lived Intangible Assets Amortization Expense	Amortization expense is reflected in "Selling and administrative expenses" in the Consolidated Statements of Comprehensive Income and was as follows (in thousands): 2018 2017 2016 Capitalized software $ 17,109 $ 9,389 $ 4,722 Other definite-lived intangibles $ 6,615 $ 6,989 $ 7,055
Schedule of Expected Amortization Expense Table	Based on the current amount of intangible assets subject to amortization, the estimated amortization expense for each of the following five fiscal years is as follows (in millions): 2019 2020 2021 2022 2023 Amortization expense $ 23.8 $ 22.9 $ 21.6 $ 19.2 $ 16.9
Schedule of Indefinite-Lived Intangible Assets	These indefinite-lived intangible assets are reflected in "Goodwill and Other Intangible Assets" in the Consolidated Balance Sheets (in thousands): December 29, 2018 December 30, 2017 Trademarks and trade names $ 28,788 $ 29,201

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 29, 2018
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt is as follows (in thousands): 2018 2017 Revolving credit facility with interest at a variable rate (December 29, 2018 - 3.5%; December 30, 2017 - 2.7%) $ 150,000 $ 267,500 Fixed rate notes due in 2025 with an interest rate of 4.22% 50,000 — Fixed rate notes due in 2028 with an interest rate of 4.40% 50,000 — Other amounts 679 9,148 Deferred debt issuance costs (645 ) — Total debt 250,034 276,648 Less: Current maturities of long-term debt 679 36,648 Long-term debt $ 249,355 $ 240,000
Schedule of Maturities of Long-term Debt	Aggregate maturities of long-term debt are as follows (in thousands): 2019 2020 2021 2022 2023 Thereafter Maturities of long-term debt $ 679 $ — $ — $ — $ 150,000 $ 100,000

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Significant components of the provision for income taxes, including those related to non-controlling interest, are as follows (in thousands): 2018 2017 2016 Current: Federal $ 15,663 $ 9,501 $ 18,963 State 4,877 3,408 3,740 Foreign 936 789 1,450 Current provision 21,476 13,698 24,153 Deferred: Federal 4,002 (35,914 ) 18,167 State 1,320 2,552 2,533 Foreign (1,399 ) 378 (1,580 ) Deferred provision 3,923 (32,984 ) 19,120 Total income tax expense $ 25,399 $ (19,286 ) $ 43,273
Schedule of Effective Income Tax Rate Reconciliation	The differences between the actual tax expense and tax expense computed at the statutory U.S. federal tax rate are explained as follows (in thousands): 2018 2017 2016 Federal statutory tax expense $ 24,943 $ 24,678 $ 45,098 State taxes, net of federal tax effect 3,997 2,197 3,874 Credit for increasing research activities (3,950 ) (3,407 ) (3,808 ) Deduction related to domestic production activities — (1,537 ) (2,243 ) Valuation allowance (1,141 ) 4,232 231 Federal rate adjustment to deferred taxes — (45,386 ) — Equity based compensation (666 ) (1,544 ) — Change in uncertain tax positions 766 (163 ) 117 Foreign income tax rate differential 124 2,094 845 Other – net 1,326 (450 ) (841 ) Total income tax expense $ 25,399 $ (19,286 ) $ 43,273
Schedule of Deferred Tax Assets and Liabilities	Significant components of the Corporation’s deferred tax liabilities and assets are as follows (in thousands): 2018 2017 Deferred Taxes Allowance for doubtful accounts $ 897 $ 2,679 Compensation 6,419 5,618 Inventory differences 2,498 2,541 Marketing accrual 1,260 1,653 Stock-based compensation 8,456 8,224 Accrued post-retirement benefit obligations 5,500 6,896 Vacation accrual 2,783 2,577 Warranty accrual 3,761 3,737 Net operating loss carryforward 4,790 6,534 Charitable contributions carryforward 712 2,839 Other – net 12,702 6,372 Total deferred tax assets $ 49,778 $ 49,670 Deferred income (4,707 ) (4,330 ) Goodwill and other intangible assets (52,468 ) (53,255 ) Prepaids (6,536 ) (5,862 ) Tax over book depreciation (59,500 ) (54,227 ) Total deferred tax liabilities $ (123,211 ) $ (117,674 ) Valuation allowance (7,153 ) (8,664 ) Total net deferred tax liabilities $ (80,586 ) $ (76,668 ) Long-term net deferred tax assets 1,569 193 Long-term net deferred tax liabilities (82,155 ) (76,861 ) Total net deferred tax liabilities $ (80,586 ) $ (76,668 )
Summary of Valuation Allowance	The valuation allowance for deferred tax assets is as follows (in thousands): Balance at beginning of period Charged to expenses Adjustments to balance sheet Balance at end of period Year ended December 29, 2018 $ 8,664 (839 ) (672 ) $ 7,153 Year ended December 30, 2017 $ 4,159 4,505 — $ 8,664 Year ended December 31, 2016 $ 3,978 $ 231 $ (50 ) $ 4,159
Summary of Income Tax Contingencies	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): 2018 2017 Balance at beginning of period $ 2,524 $ 3,043 Increases in positions taken in a prior period 262 — Decreases in positions taken in a prior period — (45 ) New positions taken in a current period 529 569 Decrease due to settlements (9 ) (363 ) Decrease due to lapse of statute of limitations (369 ) (680 ) Balance at end of period $ 2,937 $ 2,524
Schedule Of Interest And Penalties On Income Taxes	Interest, penalties, and benefits recognized in the Consolidated Statements of Comprehensive Income were as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Interest, penalties, and (benefits) $ 92 $ (25 ) $ 70 The Corporation recorded a liability for interest and penalties related to unrecognized tax benefits in the Consolidated Statements of Comprehensive Income as follows (in thousands): December 29, 2018 December 30, 2017 Liability related to unrecognized tax benefits $ 275 $ 183

Fair Value Measurements of Fi_2

Fair Value Measurements of Financial Instruments (Tables)	12 Months Ended
	Dec. 29, 2018
Fair Value Disclosures [Abstract]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis Table	Financial instruments measured at fair value were as follows (in thousands): Fair value as of measurement date Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Balance as of December 29, 2018 Cash and cash equivalents (including money market funds) (1) $ 76,819 $ 76,819 $ — $ — Government securities (2) $ 7,384 $ — $ 7,384 $ — Corporate bonds (2) $ 4,620 $ — $ 4,620 $ — Derivative financial instruments (3) $ 3,797 $ — $ 3,797 $ — Variable-rate debt obligations (4) $ 150,000 $ — $ 150,000 $ — Fixed-rate debt obligations (4) $ 100,000 $ — $ 100,000 $ — Deferred stock-based compensation (5) $ 7,857 $ — $ 7,857 $ — Balance as of December 30, 2017 Cash and cash equivalents (including money market funds) (1) $ 23,348 $ 23,348 $ — $ — Government securities (2) $ 6,345 $ — $ 6,345 $ — Corporate bonds (2) $ 6,149 $ — $ 6,149 $ — Derivative financial instruments (3) $ 3,354 $ — $ 3,354 $ — Variable-rate debt obligations (4) $ 267,500 $ — $ 267,500 $ — Deferred stock-based compensation (5) $ 8,885 $ — $ 8,885 $ — The index below indicates the line item in the Consolidated Balance Sheets where the financial instruments are reported: (1) "Cash and cash equivalents" (2) Current portion - "Short-term investments"; Long-term portion - "Other Assets" (3) Current portion - "Prepaid expenses and other current assets"; Long-term portion - "Other Assets" (4) Current portion - "Current maturities of long-term debt"; Long-term portion - "Long-Term Debt" (5) Current portion - "Current maturities of other long-term obligations"; Long-term portion - "Other Long-Term Liabilities"

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Tables)	12 Months Ended
	Dec. 29, 2018
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income Loss Table	The following table summarizes the components of accumulated other comprehensive income (loss) and the changes in accumulated other comprehensive income (loss), net of tax, as applicable (in thousands): Foreign Currency Translation Adjustment Unrealized Gains (Losses) on Marketable Securities Pension and Post-retirement Liabilities Derivative Financial Instruments Accumulated Other Comprehensive Income (Loss) Balance as of January 2, 2016 $ 322 $ (2 ) $ (5,506 ) $ — $ (5,186 ) Other comprehensive income (loss) before reclassifications (1,510 ) (158 ) 499 1,317 148 Tax (expense) or benefit — 55 (160 ) (485 ) (590 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax — — — 628 628 Balance as of December 31, 2016 $ (1,188 ) $ (105 ) $ (5,167 ) $ 1,460 $ (5,000 ) Other comprehensive income (loss) before reclassifications 1,219 (6 ) (733 ) 714 1,194 Tax (expense) or benefit — (21 ) 270 (263 ) (14 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax — — — 209 209 Balance as of December 30, 2017 $ 31 $ (132 ) $ (5,630 ) $ 2,120 $ (3,611 ) Other comprehensive income (loss) before reclassifications (3,004 ) (31 ) 3,531 1,488 1,984 Tax (expense) or benefit — 7 (830 ) (350 ) (1,173 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax — — — (799 ) (799 ) Balance as of December 29, 2018 $ (2,973 ) $ (156 ) $ (2,929 ) $ 2,459 $ (3,599 ) Amounts in parentheses indicate reductions to equity.
Reclassification out of Accumulated Other Comprehensive Income	The following table details the reclassifications from accumulated other comprehensive income (loss) (in thousands): Details about Accumulated Other Comprehensive Income (Loss) Components Affected Line Item in the Statement Where Net Income is Presented 2018 2017 2016 Derivative financial instruments Interest rate swap Interest (expense) or income $ 1,045 $ (330 ) $ (993 ) Tax (expense) or benefit (246 ) 121 365 Net of tax $ 799 $ (209 ) $ (628 ) Amounts in parentheses indicate reductions to profit.
Schedule of Stock by Class	The following table provides the details of stock under the MSPPs: 2018 2017 2016 Shares of common stock issued 74,020 74,694 75,098 Average price per share $ 32.19 $ 35.22 $ 37.77 Common stock was issued under the Director Plans as follows: 2018 2017 2016 Director Plan issued shares of common stock 27,745 27,196 24,352
Schedule of Dividends Declared and Paid Per Share	Cash dividends declared and paid per share for each year were as follows (in dollars): 2018 2017 2016 Common shares $ 1.17 $ 1.13 $ 1.09
Schedule of Repurchase Agreements	The following table summarizes shares repurchased and settled by the Corporation (in thousands, except share and per share data): 2018 2017 2016 Shares repurchased 755,221 1,462,936 1,082,938 Average price per share $ 38.96 $ 40.25 51.55 Cash purchase price $ (29,424 ) $ (58,887 ) $ (55,825 ) Purchases unsettled as of quarter end 354 1,382 — Prior year purchases settled in current year (1,382 ) — — Shares repurchased per cash flow $ (30,452 ) $ (57,505 ) $ (55,825 )

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 29, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Compensation Costs	The total income tax benefit recognized in the income statement for share-based compensation arrangements was as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Income tax benefit $ 1,582 $ 2,581 $ 2,809 Compensation cost charged against operations for the Plan and the 2017 MSPP described in "Note 11. Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity" in the Notes to Consolidated Financial Statements was as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Compensation cost $ 7,317 $ 7,750 $ 8,141 The following table details deferred compensation, which is a combination of cash and stock, and the affected line item in the Consolidated Balance Sheets where deferred compensation is presented (in thousands): December 29, 2018 December 30, 2017 Current maturities of other long-term obligations $ 2,356 $ 719 Other long-term liabilities 8,729 11,581 Total deferred compensation $ 11,085 $ 12,300 Total fair-market value of deferred compensation $ 7,857 $ 8,885
Schedule of Valuation Assumptions	The stock-based compensation expense for the following year-end dates were estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions by grant year: December 29, 2018 December 30, 2017 December 31, 2016 Expected term 5 years 6 years 6 years Expected volatility (weighted-average) 34.12 % 38.07 % 38.96 % Expected dividend yield (weighted-average) 2.97 % 2.36 % 3.30 % Risk-free interest rate (weighted-average) 2.66 % 2.17 % 1.41 %
Schedule of Share-based Compensation, Stock Options, Activity	The following table summarizes the changes in outstanding stock options: Number of Shares Weighted Average Exercise Price Outstanding as of January 2, 2016 3,358,323 $ 32.09 Granted 877,277 32.18 Exercised (609,663 ) 30.52 Forfeited or Expired (121,602 ) 52.24 Outstanding as of December 31, 2016 3,504,335 $ 31.68 Granted 537,795 46.61 Exercised (446,817 ) 25.55 Forfeited or Expired (33,029 ) 40.81 Outstanding as of December 30, 2017 3,562,284 $ 34.63 Granted 788,301 38.53 Exercised (647,759 ) 26.28 Forfeited or Expired (75,821 ) 38.36 Outstanding as of December 29, 2018 3,627,005 $ 36.89
Schedule of Nonvested Restricted Stock Units Activity	A summary of the Corporation’s non-vested stock options and changes during the year are presented below: Number of Shares Weighted Average Grant-Date Fair Value Non-vested as of December 30, 2017 1,935,838 $ 12.05 Granted 788,301 9.72 Vested (646,900 ) 11.14 Forfeited (75,821 ) 11.19 Non-vested as of December 29, 2018 2,001,418 $ 11.46
Stock Option Vested or Expected to Vest and are Exercisable	Information about stock options expected to vest or currently exercisable is as follows: December 29, 2018 Number of Shares Weighted-Average Exercise Price Weighted-Average Remaining Exercisable Period (years) Aggregate Intrinsic Value ($000s) Expected to vest 1,864,724 $ 39.92 8.0 $ 1,779 Exercisable 1,625,587 $ 33.21 4.4 $ 5,893
Schedule of Share-based Compensation Arrangement Other Information	Other information for the last three years is as follows (in thousands): December 29, 2018 December 30, 2017 December 31, 2016 Total fair value of shares vested $ 7,204 $ 8,057 $ 7,206 Total intrinsic value of options exercised $ 8,917 $ 7,270 $ 11,985 Cash received from exercise of stock options $ 17,021 $ 11,418 $ 18,609 Tax benefit realized from exercise of stock options $ 1,928 $ 2,423 $ 4,142 Weighted-average grant-date fair value of options granted $ 9.72 $ 14.41 $ 8.80
Schedule of Share-based Compensation, Restricted Stock Units Activity	The total value of shares vested was as follows (in thousands): 2018 2017 2016 Value of shares vested $ 618 $ 654 $ — The following table summarizes the changes in outstanding RSUs: Number of Shares Weighted-Average Grant Date Fair Value Outstanding as of January 2, 2016 38,500 $ 43.77 Granted 25,000 32.06 Vested — — Forfeited (3,000 ) 51.54 Outstanding as of December 31, 2016 60,500 $ 38.54 Granted — — Vested (18,500 ) 35.36 Forfeited (5,000 ) 51.54 Outstanding as of December 30, 2017 37,000 $ 38.38 Granted 23,224 40.44 Vested (12,000 ) 51.54 Forfeited (2,500 ) 28.90 Outstanding as of December 29, 2018 45,724 $ 36.49

Retirement Benefits (Tables)

Retirement Benefits (Tables)	12 Months Ended
	Dec. 29, 2018
Retirement Benefits [Abstract]
Schedule of Costs of Retirement Plans	The following table reconciles the annual contribution (in thousands): 2018 2017 2016 Stock contribution $ 7,174 $ 7,327 $ 7,170 Cash contribution 21,413 23,834 25,349 Total annual contribution $ 28,587 $ 31,161 $ 32,519

Post-Retirement Health Care (Ta

Post-Retirement Health Care (Tables)	12 Months Ended
	Dec. 29, 2018
Retirement Benefits [Abstract]
Components of Net Periodic Postretirement Benefit Cost	The following table sets forth the activity and reporting location of the benefit obligation and plan assets (in thousands): 2018 2017 Change in benefit obligation Benefit obligation at beginning of year $ 22,933 $ 21,153 Service cost 853 741 Interest cost 789 825 Benefits paid (1,570 ) (1,003 ) Actuarial (gain) loss (3,453 ) 1,217 Benefit obligation at end of year $ 19,552 $ 22,933 Change in plan assets Fair value at beginning of year $ — $ — Actual return on assets — — Employer contribution 1,570 1,003 Transferred out — — Benefits paid (1,570 ) (1,003 ) Fair value at end of year $ — $ — Funded Status of Plan $ (19,552 ) $ (22,933 ) Amounts recognized in the Statement of Financial Position consist of: Current liabilities $ 1,057 $ 1,050 Non-current liabilities $ 18,495 $ 21,883 Amounts recognized in Accumulated Other Comprehensive Income (before tax) consist of: Actuarial (gain) loss $ (14 ) $ 3,565 Change in Accumulated Other Comprehensive Income (before tax): Amount disclosed at beginning of year $ 3,565 $ 2,373 Actuarial (gain) loss (3,453 ) 1,217 Amortization of transition amount (126 ) (25 ) Amount disclosed at end of year $ (14 ) $ 3,565
Schedule of Expected Benefit Payments	Estimated future benefit payments are as follows (in thousands): Fiscal 2019 $ 1,056 Fiscal 2020 $ 1,053 Fiscal 2021 $ 1,051 Fiscal 2022 $ 1,065 Fiscal 2023 $ 1,085 Fiscal 2024 – 2028 $ 5,885
Schedule of Expected Contributions	Expected contributions are as follows (in thousands): Fiscal 2019 $ 1,056
Schedule of Assumptions Used	The discount rate used was as follows: 2018 2017 2016 Discount rate 4.2 % 3.5 % 4.0 %
Schedule of Net Benefit Costs	The following table sets forth the components of net periodic benefit costs (in thousands): 2019 Service cost $ 680 Interest cost 795 Amortization of net (gain) loss — Net periodic post-retirement benefit cost $ 1,475

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 29, 2018
Leases [Abstract]
Operating Leases	Commitments for minimum rentals under non-cancelable leases are as follows (in thousands): Operating Leases 2019 $ 24,387 2020 18,250 2021 13,324 2022 9,082 2023 6,228 Thereafter 10,469 Total minimum lease payments $ 81,740 Rent expense was as follows (in thousands): 2018 2017 2016 Rent expense $ 31,027 $ 32,158 $ 35,288

Reportable Segment Information

Reportable Segment Information (Tables)	12 Months Ended
	Dec. 29, 2018
Segment Reporting [Abstract]
Business Segment Information	Reportable segment data reconciled to the Corporation's consolidated financial statements was as follows (in thousands): 2018 2017 2016 Net Sales: Office furniture $ 1,706,092 $ 1,660,723 $ 1,703,885 Hearth products 551,803 515,159 499,604 Total $ 2,257,895 $ 2,175,882 $ 2,203,489 Income Before Income Taxes: Office furniture (a) $ 79,323 $ 50,176 $ 117,397 Hearth products (b) 91,367 83,649 69,960 General corporate (42,517 ) (57,135 ) (53,665 ) Operating income 128,173 76,690 133,692 Interest expense, net 9,448 6,078 4,781 Total $ 118,725 $ 70,612 $ 128,911 Depreciation and Amortization Expense: Office furniture $ 44,303 $ 48,435 $ 45,088 Hearth products 8,171 10,109 12,486 General corporate 22,314 14,328 11,373 Total $ 74,788 $ 72,872 $ 68,947 Capital Expenditures (including capitalized software): Office furniture $ 47,860 $ 79,458 $ 65,944 Hearth products 8,854 17,356 11,217 General corporate 6,982 30,577 42,423 Total $ 63,696 $ 127,391 $ 119,584 Identifiable Assets: Office furniture $ 797,574 $ 821,767 $ 749,145 Hearth products 352,060 347,189 340,494 General corporate 252,210 222,594 240,595 Total $ 1,401,844 $ 1,391,550 $ 1,330,234 (a) Included in operating profit for the office furniture segment are pretax charges of $16.4 million , $32.5 million , and $10.9 million , for closing of facilities and impairment charges in 2018 , 2017 , and 2016 , respectively. (b) Included in operating profit for the hearth products segment are pretax charges of $1.2 million and $4.9 million for closing facilities in 2018 and 2017 , and $5.5 million related to exiting a line of business in 2016 .
Net Sales by Product Category	The Corporation's net sales by product category were as follows (in thousands): 2018 2017 2016 Systems and storage $ 1,015,900 $ 1,069,518 $ 1,072,518 Seating 598,722 536,501 539,839 Other 91,470 54,704 91,528 Hearth products 551,803 515,159 499,604 $ 2,257,895 $ 2,175,882 $ 2,203,489

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Cash, Cash Equivalents and Investments) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Schedule of Investments [Line Items]
Cash and cash equivalents	$ 76,819	$ 23,348	$ 36,312	$ 28,548
Short-term investments	1,327	2,015
Long-term investments	10,677	10,479
Amortized cost basis of debt securities	12,202	12,660
Debt securities
Schedule of Investments [Line Items]
Cash and cash equivalents	0	0
Short-term investments	1,327	2,015
Long-term investments	10,677	10,479
Cash and money market accounts
Schedule of Investments [Line Items]
Cash and cash equivalents	76,819	23,348
Short-term investments	0	0
Long-term investments	$ 0	$ 0

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Allowance for doubtful accounts) (Details) - Allowance for doubtful accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 1,904	$ 2,140	$ 4,287
Adjustments to allowance	2,440	846	(357)
Amounts written off, net of recoveries and other adjustments	477	1,082	1,598
Divestitures	0	0	192
Balance at end of period	$ 3,867	$ 1,904	$ 2,140

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Inventories) (Details) - USD ($)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Inventory, Net [Abstract]
Finished products	$ 97,398,000	$ 101,715,000
Materials and work in process	94,161,000	81,202,000
Last-in,first-out (LIFO) allowance	(34,381,000)	(27,234,000)
Inventories, net	$ 157,178,000	$ 155,683,000
Inventory valued by the LIFO costing method	81.40%	83.36%
Effect of LIFO inventory, decrease (increase) in cost of goods sold	$ (500,000)	$ 0

Summary of Significant Accoun_7

Summary of Significant Accounting Policies (Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 51,063	$ 56,494	$ 57,171
Land improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life	10 years
Land improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life	20 years
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Useful life	10 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Useful life	40 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life	12 years

Summary of Significant Accoun_8

Summary of Significant Accounting Policies (Accounts Payable) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Accounting Policies [Abstract]
Trade accounts payable	$ 221,395	$ 235,577
Compensation	52,227	47,277
Profit sharing and retirement expense	28,300	30,884
Marketing expenses	36,529	41,751
Freight	13,892	13,121
Other accrued expenses	76,522	81,518
Accounts payable and accrued expenses	$ 428,865	$ 450,128

Summary of Significant Accoun_9

Summary of Significant Accounting Policies (Product Warranties) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Dec. 29, 2018	Dec. 30, 2017
Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 15,388	$ 15,250	$ 16,227
Accruals settled from divestiture	0	0	(538)
Accruals for warranties issued during period	22,697	20,075	20,055
Adjustments related to pre-existing warranties	233	194	604
Settlements made during the period	(22,868)	(20,131)	(21,098)
Balance at end of period	15,450	15,388	15,250
Product Warranties Disclosures [Abstract]
Current - in the next twelve months				$ 9,455	$ 9,524
Long-term - beyond one year				5,995	5,864
Standard product warranty accrual	$ 15,388	$ 15,250	$ 16,227	$ 15,450	$ 15,388

Summary of Significant Accou_10

Summary of Significant Accounting Policies (Product Development Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Product development costs	$ 33,420	$ 31,846	$ 28,089

Summary of Significant Accou_11

Summary of Significant Accounting Policies (Freight Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Cost of sales	$ 1,422,857	$ 1,391,894	$ 1,368,476
Freight expense
Disaggregation of Revenue [Line Items]
Cost of sales	$ 134,190	$ 119,096	$ 115,157

Summary of Significant Accou_12

Summary of Significant Accounting Policies (Income Taxes) (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2018USD ($)
Accounting Policies [Abstract]
Undistributed earnings of foreign subsidiaries	$ 34,500
Income tax on repatriation of foreign earnings	$ 20

Summary of Significant Accou_13

Summary of Significant Accounting Policies (Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Numerator:
Numerator for both basic and diluted EPS attributable to HNI Corporation net income	$ 93,377	$ 89,795	$ 85,577
Denominators:
Denominator for basic EPS weighted- average common shares outstanding (in shares)	43,639,003	43,839,004	44,413,941
Potentially dilutive shares from stock-based compensation plans (shares)	689,000	1,001,000	1,088,000
Denominator for diluted EPS (shares)	44,327,602	44,839,813	45,502,219
Earnings per share - basic (in dollars per share)	$ 2.14	$ 2.05	$ 1.93
Earnings per share - diluted (in dollars per share)	$ 2.11	$ 2	$ 1.88
Stock Compensation Plan
Denominators:
Common stock equivalents excluded because their inclusion would be anti-dilutive (in shares)	1,507,870	809,420	416,142

Summary of Significant Accou_14

Summary of Significant Accounting Policies (Insurance Liabilities) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Accounting Policies [Abstract]
General, auto, product, and workers' compensation liabilities	$ 30,227	$ 27,591

Revenue from Contracts with C_3

Revenue from Contracts with Customers Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Net sales	$ 2,257,895	$ 2,175,882	$ 2,203,489
Office Furniture | Supplies-driven channel
Disaggregation of Revenue [Line Items]
Net sales	904,292	836,733
Office Furniture | Contract channel
Disaggregation of Revenue [Line Items]
Net sales	801,800	823,990
Hearth Products | Hearth
Disaggregation of Revenue [Line Items]
Net sales	$ 551,803	$ 515,159

Revenue from Contracts with C_4

Revenue from Contracts with Customers Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Revenue from Contract with Customer [Abstract]
Trade receivables	$ 259,075	$ 260,455
Contract assets (current)	529	300
Contract assets (long-term)	2,188	2,350
Contract liabilities	$ 44,858	$ 54,527

Revenue from Contracts with C_5

Revenue from Contracts with Customers Change in Contract Assets and Liabilities (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2018USD ($)
Change in Contract with Customer, Asset [Abstract]
Contract assets recognized	$ 2,100
Reclassification of contract assets to contra revenue	(483)
Contract asset impairment	(1,550)
Impact of business combination	0
Net change	67
Change in Contract with Customer, Liability [Abstract]
Contract liabilities recognized and recorded to contra revenue as a result of performance obligations satisfied	(127,454)
Contract liabilities paid	132,909
Cash received in advance and not recognized as revenue	(54,167)
Reclassification of cash received in advance to revenue as a result of performance obligations satisfied	58,304
Impact of business combination	77
Net change	$ 9,669

Revenue from Contracts with C_6

Revenue from Contracts with Customers Comprehensive Income related to Contract Liabilities (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Revenue from Contract with Customer [Abstract]
Revenue recognized related to contract liabilities	$ 12.5

Restructuring and Impairment _3

Restructuring and Impairment Charges (Schedule of Restructuring and Related Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Cost of sales - accelerated depreciation	$ 0	$ 10,327	$ 5,302
Restructuring charges	2,325	6,205	5,229
Goodwill and long-lived asset impairments	15,200	20,947	5,776
Valuation allowance of long-term note receivable	(1,800)	10,264	0
Restructuring and impairment charges	$ 15,725	$ 37,416	$ 11,005

Restructuring and Impairment _4

Restructuring and Impairment Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 29, 2018	Dec. 30, 2017
Paris, Kentucky Facility Closing
Restructuring Cost and Reserve [Line Items]
Assets held-for-sale			$ 4.6
Manufacturing Facility
Restructuring Cost and Reserve [Line Items]
Term of lease	10 years
Net proceeds	$ 16.9
Deferred gain		$ 5.1
Deferred gain current		0.5
Deferred gain noncurrent		$ 4.2

Restructuring and Impairment _5

Restructuring and Impairment Charges (Schedule of Restructuring Reserve by Type of Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Restructuring Reserve [Roll Forward]
Restructuring reserve at beginning of period	$ 1,859	$ 2,704	$ 221
Restructuring charges	2,325	6,205	5,229
Cash payments	(3,898)	(7,050)	(2,746)
Restructuring reserve at end of period	286	1,859	2,704
Severance Costs
Restructuring Reserve [Roll Forward]
Restructuring reserve at beginning of period	1,343	2,704	206
Restructuring charges	355	1,436	3,883
Cash payments	(1,562)	(2,797)	(1,385)
Restructuring reserve at end of period	136	1,343	2,704
Facility Exit Costs & Other
Restructuring Reserve [Roll Forward]
Restructuring reserve at beginning of period	516	0	15
Restructuring charges	1,970	4,769	1,346
Cash payments	(2,336)	(4,253)	(1,361)
Restructuring reserve at end of period	$ 150	$ 516	$ 0

Acquisitions and Divestitures (

Acquisitions and Divestitures (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 29, 2016	Dec. 29, 2018	Sep. 29, 2018	Dec. 30, 2017
Business Acquisition [Line Items]
Goodwill	$ 290,699		$ 270,788		$ 279,505
Loss on disposition of business	23,000
Notes receivable	$ 10,000
Small Hearth Products Company
Business Acquisition [Line Items]
Goodwill				$ 3,400
OFM
Business Acquisition [Line Items]
Acquisition cost		$ 34,100
Goodwill		14,000
Annual sales		30,000
Intangible assets other than goodwill		$ 15,000
Minimum | OFM
Business Acquisition [Line Items]
Finite-lived intangible asset useful life		3 years
Maximum | OFM
Business Acquisition [Line Items]
Finite-lived intangible asset useful life		10 years

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Cash paid for:
Interest paid, net of capitalized interest	$ 9,882	$ 6,236	$ 6,644
Income taxes paid	11,465	13,733	23,120
Changes in accrued expenses due to:
Purchases of property and equipment	5,895	(10,370)	3,599
Purchases of capitalized software	$ (2,497)	$ (237)	$ 603

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Schedule of Goodwill and Other Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 270,788	$ 279,505	$ 290,699
Definite-lived intangible assets	163,714	182,186
Indefinite-lived intangible assets	28,788	29,201
Intangible assets, net (including goodwill)	$ 463,290	$ 490,892

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($)	6 Months Ended	12 Months Ended
	Sep. 29, 2018	Dec. 29, 2018	Dec. 30, 2017
Goodwill [Roll Forward]
Goodwill, gross beginning balance		$ 311,856,000	$ 321,088,000
Accumulated impairment losses, beginning balance		(32,351,000)	(30,389,000)
Goodwill, net beginning balance		279,505,000	290,699,000
Goodwill acquired during the year		3,463,000
Impairment losses		(12,168,000)	(4,838,000)
Foreign currency translation adjustment		(12,000)	(44,000)
Goodwill, gross ending balance		315,307,000	311,856,000
Accumulated impairment losses, ending balance		(44,519,000)	(32,351,000)
Goodwill, net ending balance		270,788,000	279,505,000
Office Furniture
Goodwill [Roll Forward]
Goodwill, gross beginning balance		128,657,000	137,889,000
Accumulated impairment losses, beginning balance		(32,208,000)	(30,246,000)
Goodwill, net beginning balance		96,449,000	107,643,000
Goodwill acquired during the year		0
Impairment losses	$ 0	(12,168,000)	(4,838,000)
Foreign currency translation adjustment		(12,000)	(44,000)
Goodwill, gross ending balance		128,645,000	128,657,000
Accumulated impairment losses, ending balance		(44,376,000)	(32,208,000)
Goodwill, net ending balance		84,269,000	96,449,000
Hearth Products
Goodwill [Roll Forward]
Goodwill, gross beginning balance		183,199,000	183,199,000
Accumulated impairment losses, beginning balance		(143,000)	(143,000)
Goodwill, net beginning balance		183,056,000	183,056,000
Goodwill acquired during the year		3,463,000
Impairment losses		0	0
Foreign currency translation adjustment		0	0
Goodwill, gross ending balance		186,662,000	183,199,000
Accumulated impairment losses, ending balance		(143,000)	(143,000)
Goodwill, net ending balance		$ 186,519,000	183,056,000
Disposal Group, Not Discontinued Operations
Goodwill [Roll Forward]
Impairment losses			(6,312,000)
Disposal Group, Not Discontinued Operations | Office Furniture
Goodwill [Roll Forward]
Impairment losses			(6,312,000)
Disposal Group, Not Discontinued Operations | Hearth Products
Goodwill [Roll Forward]
Impairment losses			$ 0

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Net definite-lived intangible assets
Gross	$ 281,718	$ 280,799
Accumulated Amortization	118,004	98,613
Net	163,714	182,186
Capitalized software	17,109	9,389	$ 4,722
Other definite-lived intangibles	6,615	6,989	$ 7,055
Amortization expense
2,019	23,800
2,020	22,900
2,021	21,600
2,022	19,200
2,023	16,900
Patents
Net definite-lived intangible assets
Gross	40	40
Accumulated Amortization	34	26
Net	6	14
Software
Net definite-lived intangible assets
Gross	170,274	167,105
Accumulated Amortization	49,561	34,792
Net	120,713	132,313
Trademarks and trade names
Net definite-lived intangible assets
Gross	7,564	7,564
Accumulated Amortization	2,721	2,061
Net	4,843	5,503
Customer lists and other
Net definite-lived intangible assets
Gross	103,840	106,090
Accumulated Amortization	65,688	61,734
Net	$ 38,152	$ 44,356

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets (Indefinite Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 28,788	$ 29,201
Trademarks and trade names
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 28,788	$ 29,201

Goodwill and Other Intangible_7

Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2017	Sep. 29, 2018	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Goodwill [Line Items]
Gain on sale and license of intangible assets	$ 6,000,000
Goodwill impairment			$ 12,168,000	$ 4,838,000
Intangible assets, net (including goodwill)			463,290,000	490,892,000
Goodwill			270,788,000	279,505,000	$ 290,699,000
Trade names, net value			28,788,000	29,201,000
Impairment of long-lived assets		$ 0	0
Office furniture reporting unit one
Goodwill [Line Items]
Goodwill impairment			12,200,000
Goodwill			$ 7,500,000
Office furniture reporting unit two
Goodwill [Line Items]
Discount rate utilized for each reporting unit with rates range (percent)			14.00%
Terminal growth (percent)			3.00%
Decrease in reporting unit due to 100 basis point increase in discount rate			$ 2,300,000
Decrease in reporting unit due to 100 basis point decrease in long-term growth rate			$ 500,000
Office furniture reporting unit two | Minimum
Goodwill [Line Items]
Near term growth (percent)			1.00%
Office furniture reporting unit two | Maximum
Goodwill [Line Items]
Near term growth (percent)			6.00%
Office Furniture
Goodwill [Line Items]
Goodwill impairment		$ 0	$ 12,168,000	4,838,000
Goodwill			$ 84,269,000	$ 96,449,000	$ 107,643,000

Long-Term Debt (Schedule of Lon

Long-Term Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	May 31, 2018	Dec. 30, 2017
Debt Instrument [Line Items]
Total debt	$ 250,034		$ 276,648
Deferred debt issuance costs	(645)		0
Less: Current maturities of long-term debt	679		36,648
Long-term debt	$ 249,355		$ 240,000
Revolving credit facility with interest at a variable rate (December 29, 2018 - 3.5%; December 30, 2017 - 2.7%)
Debt Instrument [Line Items]
Fixed interest rate	3.515%		2.70%
Total debt	$ 150,000		$ 267,500
Fixed rate notes due in 2025 with an interest rate of 4.22%
Debt Instrument [Line Items]
Fixed interest rate	4.22%	4.22%
Total debt	$ 50,000		0
Fixed rate notes due in 2028 with an interest rate of 4.40%
Debt Instrument [Line Items]
Fixed interest rate	4.40%	4.40%
Total debt	$ 50,000		0
Other amounts
Debt Instrument [Line Items]
Total debt	$ 679		$ 9,148

Long-Term Debt (Schedule of Mat

Long-Term Debt (Schedule of Maturities of Long-term Debt) (Details) $ in Thousands	Dec. 29, 2018USD ($)
Debt Disclosure [Abstract]
2,019	$ 679
2,020	0
2,021	0
2,022	0
2,023	150,000
Thereafter	$ 100,000

Long-Term Debt (Narrative) (Det

Long-Term Debt (Narrative) (Details)	May 31, 2018USD ($)	Dec. 29, 2018USD ($)
Debt Instrument [Line Items]
Debt issuance costs current		$ 400,000
Debt issuance cost noncurrent		1,500,000
Revolving commitment
Debt Instrument [Line Items]
Outstanding revolving credit facility		150,000,000
Maximum line of credit facility borrowing capacity		450,000,000
Private Placement Notes
Debt Instrument [Line Items]
Debt issuance cost noncurrent		$ 600,000
Outstanding revolving credit facility	$ 100,000,000
Fixed rate notes due in 2025 with an interest rate of 4.22%
Debt Instrument [Line Items]
Debt instrument term	7 years
Revolving credit facility	$ 50,000,000
Fixed interest rate	4.22%	4.22%
Fixed rate notes due in 2028 with an interest rate of 4.40%
Debt Instrument [Line Items]
Debt instrument term	10 years
Revolving credit facility	$ 50,000,000
Fixed interest rate	4.40%	4.40%
Revolving commitment
Debt Instrument [Line Items]
Interest coverage ratio		4
Consolidated leverage ratio		3.5

Income Taxes (Provision for Inc

Income Taxes (Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Current:
Federal	$ 15,663	$ 9,501	$ 18,963
State	4,877	3,408	3,740
Foreign	936	789	1,450
Current provision	21,476	13,698	24,153
Deferred:
Federal	4,002	(35,914)	18,167
State	1,320	2,552	2,533
Foreign	(1,399)	378	(1,580)
Deferred provision	3,923	(32,984)	19,120
Total income tax expense	$ 25,399	$ (19,286)	$ 43,273

Income Taxes (Effective Income

Income Taxes (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Federal statutory tax expense	$ 24,943	$ 24,678	$ 45,098
State taxes, net of federal tax effect	3,997	2,197	3,874
Credit for increasing research activities	(3,950)	(3,407)	(3,808)
Deduction related to domestic production activities	0	(1,537)	(2,243)
Valuation allowance	(1,141)	4,232	231
Federal rate adjustment to deferred taxes	0	(45,386)	0
Equity based compensation	(666)	(1,544)	0
Change in uncertain tax positions	766	(163)	117
Foreign income tax rate differential	124	2,094	845
Other – net	1,326	(450)	(841)
Total income tax expense	$ 25,399	$ (19,286)	$ 43,273

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 29, 2018	Dec. 30, 2017	Dec. 29, 2018
Operating Loss Carryforwards [Line Items]
Deferred tax benefit, remeasurement of deferred tax assets and liabilities		$ 45,400
Transition tax		100
Measurement period adjustment	$ 500
Charitable contributions carryforward		2,839	$ 712
Unrecognized tax benefits that would impact effective tax rate		$ 2,500	2,900
Undistributed earnings of foreign subsidiaries			34,500
Income tax on repatriation of foreign earnings			20
U.S. state
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards			500
Tax credit carryforward, amount			$ 2,200
Tax credit carryforward expiration period			20 years
Valuation Allowance of Deferred Tax Assets
Operating Loss Carryforwards [Line Items]
Valuation allowances and reserves decrease			$ (1,500)

Income Taxes (Deferred Tax Asse

Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Income Tax Disclosure [Abstract]
Allowance for doubtful accounts	$ 897	$ 2,679
Compensation	6,419	5,618
Inventory differences	2,498	2,541
Marketing accrual	1,260	1,653
Stock-based compensation	8,456	8,224
Accrued post-retirement benefit obligations	5,500	6,896
Vacation accrual	2,783	2,577
Warranty accrual	3,761	3,737
Net operating loss carryforward	4,790	6,534
Charitable contributions carryforward	712	2,839
Other – net	12,702	6,372
Total deferred tax assets	49,778	49,670
Deferred income	(4,707)	(4,330)
Goodwill and other intangible assets	(52,468)	(53,255)
Prepaids	(6,536)	(5,862)
Tax over book depreciation	(59,500)	(54,227)
Total deferred tax liabilities	(123,211)	(117,674)
Valuation allowance	(7,153)	(8,664)
Total net deferred tax liabilities	(80,586)	(76,668)
Long-term net deferred tax assets	1,569	193
Long-term net deferred tax liabilities	$ (82,155)	$ (76,861)

Income Taxes (Valuation Allowan

Income Taxes (Valuation Allowance for Deferred Tax Asset) (Details) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 7,153	$ 8,664	$ 4,159	$ 3,978
Charged to expenses	(839)	4,505	231
Adjustments to balance sheet	(672)	0	(50)
Balance at end of period	$ 7,153	$ 8,664	$ 4,159

Income Taxes (Unrecognized Tax

Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of period	$ 2,524	$ 3,043
Increases in positions taken in a prior period	262	0
Decreases in positions taken in a prior period	0	(45)
New positions taken in a current period	529	569
Decrease due to settlements	(9)	(363)
Decrease due to lapse of statute of limitations	(369)	(680)
Balance at end of period	$ 2,937	$ 2,524

Income Taxes (Interest and Pena

Income Taxes (Interest and Penalties) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Interest, penalties, and (benefits)	$ 92	$ (25)	$ 70
Liability related to unrecognized tax benefits	$ 275	$ 183

Fair Value Measurements of Fi_3

Fair Value Measurements of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 76,819	$ 23,348	$ 36,312	$ 28,548
Fair Value measurements on a recurring basis
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	76,819	23,348
Derivative financial instruments	3,797	3,354
Deferred stock-based compensation	7,857	8,885
Fair Value measurements on a recurring basis | Quoted prices in active markets for identical assets (Level 1)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	76,819	23,348
Derivative financial instruments	0	0
Deferred stock-based compensation	0	0
Fair Value measurements on a recurring basis | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Derivative financial instruments	3,797	3,354
Deferred stock-based compensation	7,857	8,885
Fair Value measurements on a recurring basis | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Derivative financial instruments	0	0
Deferred stock-based compensation	0	0
Corporate Debt Securities | Fair Value measurements on a recurring basis
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	4,620	6,149
Corporate Debt Securities | Fair Value measurements on a recurring basis | Quoted prices in active markets for identical assets (Level 1)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	0	0
Corporate Debt Securities | Fair Value measurements on a recurring basis | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	4,620	6,149
Corporate Debt Securities | Fair Value measurements on a recurring basis | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	0	0
US Government Debt Securities | Fair Value measurements on a recurring basis
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	7,384	6,345
US Government Debt Securities | Fair Value measurements on a recurring basis | Quoted prices in active markets for identical assets (Level 1)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	0	0
US Government Debt Securities | Fair Value measurements on a recurring basis | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	7,384	6,345
US Government Debt Securities | Fair Value measurements on a recurring basis | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	0	0
Variable Rate Debt Obligation | Fair Value measurements on a recurring basis
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	150,000	267,500
Variable Rate Debt Obligation | Fair Value measurements on a recurring basis | Quoted prices in active markets for identical assets (Level 1)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	0	0
Variable Rate Debt Obligation | Fair Value measurements on a recurring basis | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	150,000	267,500
Variable Rate Debt Obligation | Fair Value measurements on a recurring basis | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	0	$ 0
Fixed Rate Debt Obligation | Fair Value measurements on a recurring basis
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	100,000
Fixed Rate Debt Obligation | Fair Value measurements on a recurring basis | Quoted prices in active markets for identical assets (Level 1)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	0
Fixed Rate Debt Obligation | Fair Value measurements on a recurring basis | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	100,000
Fixed Rate Debt Obligation | Fair Value measurements on a recurring basis | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Variable-rate debt obligations	$ 0

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 514,577	$ 501,009	$ 477,299
Other comprehensive income (loss) before reclassifications	1,984	1,194	148
Tax (expense) or benefit	(1,173)	(14)	(590)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(799)	209	628
Ending Balance	563,259	514,577	501,009
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(3,611)	(5,000)	(5,186)
Ending Balance	(3,599)	(3,611)	(5,000)
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	31	(1,188)	322
Other comprehensive income (loss) before reclassifications	(3,004)	1,219	(1,510)
Tax (expense) or benefit	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0
Ending Balance	(2,973)	31	(1,188)
Unrealized Gains (Losses) on Marketable Securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(132)	(105)	(2)
Other comprehensive income (loss) before reclassifications	(31)	(6)	(158)
Tax (expense) or benefit	7	(21)	55
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0
Ending Balance	(156)	(132)	(105)
Pension and Post-retirement Liabilities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(5,630)	(5,167)	(5,506)
Other comprehensive income (loss) before reclassifications	3,531	(733)	499
Tax (expense) or benefit	(830)	270	(160)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0	0
Ending Balance	(2,929)	(5,630)	(5,167)
Derivative Financial Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	2,120	1,460	0
Other comprehensive income (loss) before reclassifications	1,488	714	1,317
Tax (expense) or benefit	(350)	(263)	(485)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(799)	209	628
Ending Balance	$ 2,459	$ 2,120	$ 1,460

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Narrative) (Details)	12 Months Ended
	Dec. 29, 2018USD ($)hourshares	Dec. 30, 2017USD ($)	Mar. 31, 2016USD ($)	May 31, 2007shares	Jan. 01, 2007shares
Schedule of Shareholders' Equity [Line Items]
Accumulated other comprehensive income (loss)	$ (3,599,000)	$ (3,611,000)
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	673,013
Interest rate swap
Schedule of Shareholders' Equity [Line Items]
Derivative notional amount			$ 150,000,000
Fixed interest rate			1.29%
Derivative asset	$ 3,800,000
Accumulated other comprehensive income (loss)	2,500,000
Common Stock
Schedule of Shareholders' Equity [Line Items]
Remaining authorized repurchase amount	$ 48,600,000

Accumulated Other Comprehensi_5

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Reclassifications from Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax (expense) or benefit	$ (25,399)	$ 19,286	$ (43,273)
Net income	93,326	89,898	85,638
Reclassifications from accumulated other comprehensive income (loss) | Derivative financial instruments | Interest rate swap
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest (expense) or income	1,045	(330)	(993)
Tax (expense) or benefit	(246)	121	365
Net income	$ 799	$ (209)	$ (628)

Accumulated Other Comprehensi_6

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Director Plan Issued Common Stock) (Details) - shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Director plan
Class of Stock [Line Items]
Corporation common stock issued (shares)	27,745	27,196	24,352

Accumulated Other Comprehensi_7

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Dividends Declared and Paid per Share) (Details) - $ / shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Equity [Abstract]
Common shares (in dollars per share)	$ 1.170	$ 1.13	$ 1.09

Accumulated Other Comprehensi_8

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Common Stock Issued) (Details) - Purchase Plan - $ / shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Common stock issued (shares)	74,020	74,694	75,098
Common stock issued at average price (in dollars per share)	$ 32.19	$ 35.22	$ 37.77

Accumulated Other Comprehensi_9

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Share Repurchase) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Purchase of HNI Corporation common stock	$ (30,452)	$ (57,505)	$ (55,825)
Common Stock
Class of Stock [Line Items]
Stock repurchased during period (shares)	755,221	1,462,936	1,082,938
Average price per share of shares repurchased during period (in dollars per share)	$ 38.96	$ 40.25	$ 51.55
Stock repurchased during period	$ (29,424)	$ (58,887)	$ (55,825)
Accrued shares repurchased, not yet settled	354	1,382	0
Prior year purchases settled in current year	(1,382)	0	0
Purchase of HNI Corporation common stock	$ (30,452)	$ (57,505)	$ (55,825)

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	5 years	6 years	6 years
Non-vested Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 3.8
Nonvested stock, weighted average recognition period	1 year 1 month 2 days
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (years)	3 years
Unrecognized compensation cost	$ 0.8
Nonvested stock, weighted average recognition period	1 year 17 days
Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance (shares)	2.6
Exercised period (years)	10 years
Plan | Cliff vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (years)	4 years

Stock-Based Compensation (Compe

Stock-Based Compensation (Compensation Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Compensation cost	$ 7,317	$ 7,750	$ 8,141

Stock-Based Compensation (Incom

Stock-Based Compensation (Income Tax Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Income tax benefit	$ 1,582	$ 2,581	$ 2,809

Stock-Based Compensation (Valua

Stock-Based Compensation (Valuation Assumptions) (Details)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected term	5 years	6 years	6 years
Expected volatility (weighted-average)	34.12%	38.07%	38.96%
Expected dividend yield (weighted-average)	2.97%	2.36%	3.30%
Risk-free interest rate (weighted-average)	2.66%	2.17%	1.41%

Stock-Based Compensation (Outst

Stock-Based Compensation (Outstanding Stock Option Activity) (Details) - $ / shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Number of Shares
Outstanding, Beginning Balance (shares)	3,562,284	3,504,335	3,358,323
Granted (shares)	788,301	537,795	877,277
Exercised (shares)	(647,759)	(446,817)	(609,663)
Forfeited or Expired (shares)	(75,821)	(33,029)	(121,602)
Outstanding, Ending Balance (shares)	3,627,005	3,562,284	3,504,335
Weighted Average Exercise Price
Outstanding, Beginning Balance (in dollars per share)	$ 34.63	$ 31.68	$ 32.09
Granted (in dollars per share)	38.53	46.61	32.18
Exercised (in dollars per share)	26.28	25.55	30.52
Forfeited or Expired (in dollars per share)	38.36	40.81	52.24
Outstanding, Ending Balance (in dollars per share)	$ 36.89	$ 34.63	$ 31.68

Stock-Based Compensation (Non-v

Stock-Based Compensation (Non-vested Stock Option Activity) (Details) - Non-vested Stock Options	12 Months Ended
	Dec. 29, 2018$ / sharesshares
Number of Shares
Outstanding, Beginning Balance (shares) | shares	1,935,838
Granted (shares) | shares	788,301
Vested (shares) | shares	(646,900)
Forfeited (shares) | shares	(75,821)
Outstanding, Ending Balance (shares) | shares	2,001,418
Weighted Average Exercise Price
Outstanding, Beginning Balance (in dollars per share) | $ / shares	$ 12.05
Granted (in dollars per share) | $ / shares	9.72
Vested (in dollars per share) | $ / shares	11.14
Forfeited (in dollars per share) | $ / shares	11.19
Outstanding, Ending Balance (in dollars per share) | $ / shares	$ 11.46

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock Option Vested or Expected to Vest and are Exercisable) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2018USD ($)$ / sharesshares
Expected to vest
Number (shares) | shares	1,864,724
Weighted-Average Exercise Price (in dollars per share) | $ / shares	$ 39.92
Weighted-Average Remaining Exercisable Period (years)	7 years 11 months 16 days
Aggregate Intrinsic Value ($000s) | $	$ 1,779
Exercisable
Number (shares) | shares	1,625,587
Weighted-Average Exercise Price (in dollars per share) | $ / shares	$ 33.21
Weighted-Average Remaining Exercisable Period (years)	4 years 4 months 25 days
Aggregate Intrinsic Value ($000s) | $	$ 5,893

Stock-Based Compensation (Other

Stock-Based Compensation (Other Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Total fair value of shares vested	$ 7,204	$ 8,057	$ 7,206
Total intrinsic value of options exercised	8,917	7,270	11,985
Cash received from exercise of stock options	17,021	11,418	18,609
Tax benefit realized from exercise of stock options	$ 1,928	$ 2,423	$ 4,142
Weighted-average grant-date fair value of option granted (in dollars per share)	$ 9.72	$ 14.41	$ 8.80

Stock-Based Compensation (Out_2

Stock-Based Compensation (Outstanding RSU Activity) (Details) - RSUs - $ / shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Number of Shares
Outstanding, Beginning Balance (shares)	37,000	60,500	38,500
Granted (shares)	23,224	0	25,000
Vested (shares)	(12,000)	(18,500)	0
Forfeited (shares)	(2,500)	(5,000)	(3,000)
Outstanding, Ending Balance (shares)	45,724	37,000	60,500
Weighted Average Exercise Price
Outstanding, Beginning Balance (in dollars per share)	$ 38.38	$ 38.54	$ 43.77
Granted (in dollars per share)	40.44	0	32.06
Vested (in dollars per share)	51.54	35.36	0
Forfeited (in dollars per share)	28.90	51.54	51.54
Outstanding, Ending Balance (in dollars per share)	$ 36.49	$ 38.38	$ 38.54

Stock-Based Compensation (RSU's

Stock-Based Compensation (RSU's Vested) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of shares vested	$ 618	$ 654	$ 0

Stock-Based Compensation (Defer

Stock-Based Compensation (Deferred Compensation) (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Current maturities of other long-term obligations	$ 2,356	$ 719
Other long-term liabilities	8,729	11,581
Total deferred compensation	11,085	12,300
Total fair-market value of deferred compensation	$ 7,857	$ 8,885

Retirement Benefits (Details)

Retirement Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Retirement Benefits [Abstract]
Stock contribution	$ 7,174	$ 7,327	$ 7,170
Cash contribution	21,413	23,834	25,349
Total annual contribution	$ 28,587	$ 31,161	$ 32,519

Post-Retirement Health Care (Sc

Post-Retirement Health Care (Schedule of Cost of Retirement Plans) (Details) - Postretirement Health Coverage - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Change in benefit obligation
Benefit obligation at beginning of year	$ 22,933	$ 21,153
Service cost	853	741
Interest cost	789	825
Benefits paid	(1,570)	(1,003)
Actuarial (gain) loss	(3,453)	1,217
Benefit obligation at end of year	19,552	22,933
Change in plan assets
Fair value at beginning of year	0	0
Actual return on assets	0	0
Employer contribution	1,570	1,003
Transferred out	0	0
Benefits paid	(1,570)	(1,003)
Fair value at end of year	0	0
Funded Status of Plan	(19,552)	(22,933)
Amounts recognized in the Statement of Financial Position consist of:
Current liabilities	1,057	1,050
Non-current liabilities	18,495	21,883
Amounts recognized in Accumulated Other Comprehensive Income (before tax) consist of:
Actuarial (gain) loss	(14)	3,565
Change in Accumulated Other Comprehensive Income (before tax):
Amount disclosed at beginning of year	3,565	2,373
Actuarial (gain) loss	(3,453)	1,217
Amortization of transition amount	(126)	(25)
Amount disclosed at end of year	$ (14)	$ 3,565

Post-Retirement Health Care (Es

Post-Retirement Health Care (Estimated Future Benefit Payments) (Details) - Postretirement Health Coverage $ in Thousands	Dec. 29, 2018USD ($)
Defined Benefit Plan Disclosure [Line Items]
Fiscal 2,019	$ 1,056
Fiscal 2,020	1,053
Fiscal 2,021	1,051
Fiscal 2,022	1,065
Fiscal 2,023	1,085
Fiscal 2024 – 2028	5,885
Expected Contributions During Fiscal 2019	$ 1,056

Post-Retirement Health Care Pos

Post-Retirement Health Care Post-Retirement Health Care (Valuation Assumptions) (Details) - Postretirement Health Coverage	Dec. 28, 2019	Dec. 30, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Discount rate		3.50%	4.00%
Scenario, Forecast
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.20%

Post-Retirement Health Care (Co

Post-Retirement Health Care (Components of Net Periodic Post-retirement Benefit Cost) (Details) - Scenario, Forecast - Postretirement Health Coverage $ in Thousands	12 Months Ended
	Dec. 28, 2019USD ($)
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 680
Interest cost	795
Amortization of net (gain) loss	0
Net periodic post-retirement benefit cost	$ 1,475

Leases (Details)

Leases (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2018USD ($)	Dec. 29, 2018USD ($)capital_lease	Dec. 30, 2017USD ($)capital_lease	Dec. 31, 2016USD ($)
Operating Leases
2,019		$ 24,387,000
2,020		18,250,000
2,021		13,324,000
2,022		9,082,000
2,023		6,228,000
Thereafter		10,469,000
Total minimum lease payments		$ 81,740,000
Number of capitalized leases | capital_lease		0	0
Rent expense		$ 31,027,000	$ 32,158,000	$ 35,288,000
Contingent rent expense under operating leases		0	$ 0	$ 0
Manufacturing Facility
Sale Leaseback Transaction [Line Items]
Term of lease	10 years
Net proceeds	$ 16,900,000
Deferred gain		5,100,000
Deferred gain current		500,000
Deferred gain noncurrent		$ 4,200,000

Guarantees, Commitments and C_2

Guarantees, Commitments and Contingencies (Details) $ in Millions	Dec. 29, 2018USD ($)
Financing instruments, insurance policies and payment obligations
Guarantor Obligations [Line Items]
Letters of credit	$ 24
Trade letters of credit and bankers' acceptances
Guarantor Obligations [Line Items]
Letters of credit	$ 2

Reportable Segment Informatio_2

Reportable Segment Information (Business Segment Information) (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2018USD ($)segment	Dec. 30, 2017USD ($)	Dec. 31, 2016USD ($)
Segment Reporting Information [Line Items]
Number of business segments | segment	2
Net sales	$ 2,257,895	$ 2,175,882	$ 2,203,489
Operating Income (Loss)	128,173	76,690	133,692
Interest Expense	9,448	6,078	4,781
Total	118,725	70,612	128,911
Depreciation and amortization expense	74,788	72,872	68,947
Capital expenditures (including capitalized software)	63,696	127,391	119,584
Identifiable assets	1,401,844	1,391,550	1,330,234
Restructuring and impairment charges	15,725	37,416	11,005
Office Furniture
Segment Reporting Information [Line Items]
Restructuring and impairment charges	16,400	32,500	10,900
Hearth Products
Segment Reporting Information [Line Items]
Restructuring and impairment charges	1,200	4,900	5,500
Operating | Office Furniture
Segment Reporting Information [Line Items]
Net sales	1,706,092	1,660,723	1,703,885
Operating profit	79,323	50,176	117,397
Depreciation and amortization expense	44,303	48,435	45,088
Capital expenditures (including capitalized software)	47,860	79,458	65,944
Identifiable assets	797,574	821,767	749,145
Operating | Hearth Products
Segment Reporting Information [Line Items]
Net sales	551,803	515,159	499,604
Operating profit	91,367	83,649	69,960
Depreciation and amortization expense	8,171	10,109	12,486
Capital expenditures (including capitalized software)	8,854	17,356	11,217
Identifiable assets	352,060	347,189	340,494
General corporate
Segment Reporting Information [Line Items]
General corporate	(42,517)	(57,135)	(53,665)
Depreciation and amortization expense	22,314	14,328	11,373
Capital expenditures (including capitalized software)	6,982	30,577	42,423
Identifiable assets	$ 252,210	$ 222,594	$ 240,595

Reportable Segment Informatio_3

Reportable Segment Information (Net Sales By Product Category) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Revenue from External Customer [Line Items]
Net sales	$ 2,257,895	$ 2,175,882	$ 2,203,489
Systems and storage
Revenue from External Customer [Line Items]
Net sales	1,015,900	1,069,518	1,072,518
Seating
Revenue from External Customer [Line Items]
Net sales	598,722	536,501	539,839
Other
Revenue from External Customer [Line Items]
Net sales	91,470	54,704	91,528
Hearth Products
Revenue from External Customer [Line Items]
Net sales	$ 551,803	$ 515,159	$ 499,604