10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549
FORM 10-Q
x   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 2018
OR
o   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission File Number: 1-14225
HNI Corporation
Iowa (State of Incorporation)	42-0617510 (I.R.S. Employer No.)
600 East Second Street P. O. Box 1109 Muscatine, Iowa 52761-0071 (563) 272-7400
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
YES       x                     NO     o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
YES       x                     NO     o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company.  See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer x Accelerated filer o Non-accelerated filer o Smaller reporting company o  Emerging growth company o If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
YES       o                     NO     x
Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practical date.
Common Stock, $1 Par Value	Outstanding as of March 31, 2018 43,529,550

HNI Corporation and Subsidiaries
Quarterly Report on Form 10-Q
Table of Contents
PART I.  FINANCIAL INFORMATION
		Page
Item 1.	Financial Statements (Unaudited)
	Condensed Consolidated Statements of Comprehensive Income - Three Months Ended March 31, 2018	3
	Condensed Consolidated Balance Sheets - March 31, 2018 and December 30, 2017	4
	Consolidated Statements of Equity - March 31, 2018 and April 1, 2017	6
	Condensed Consolidated Statements of Cash Flows - Three Months Ended March 31, 2018 and April 1, 2017	7
	Notes to Condensed Consolidated Financial Statements	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	27
Item 4.	Controls and Procedures	27
PART II.  OTHER INFORMATION
Item 1.	Legal Proceedings	29
Item 1A.	Risk Factors	29
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	29
Item 3.	Defaults Upon Senior Securities - None	-
Item 4.	Mine Safety Disclosures - Not Applicable	-
Item 5.	Other Information - None	-
Item 6.	Exhibits	30
Signatures		31

2

PART I.  FINANCIAL INFORMATION

Item 1. Financial Statements

HNI Corporation and Subsidiaries Condensed Consolidated Statements of Comprehensive Income (In thousands, except share and per share data)
(Unaudited)
	Three Months Ended
	March 31, 2018			April 1, 2017
Net sales	$	505,069		$	477,667
Cost of sales	328,150			303,944
Gross profit	176,919			173,723
Selling and administrative expenses	171,895			163,666
Restructuring charges	1,338			2,123
Operating income	3,686			7,934
Interest income	113			71
Interest expense	2,337			1,046
Income before income taxes	1,462			6,959
Income tax expense (benefit)	(999		)	2,178
Net income	2,461			4,781
Less: Net income (loss) attributable to non-controlling interest	(49		)	(56		)
Net income attributable to HNI Corporation	$	2,510		$	4,837
Average number of common shares outstanding – basic	43,359,971			44,050,040
Net income attributable to HNI Corporation per common share – basic	$	0.06		$	0.11
Average number of common shares outstanding – diluted	44,134,142			45,452,664
Net income attributable to HNI Corporation per common share – diluted	$	0.06		$	0.11
Foreign currency translation adjustments	$	1		$	345
Change in unrealized gains (losses) on marketable securities, net of tax	(79		)	18
Change in derivative financial instruments, net of tax	1,027			264
Other comprehensive income (loss), net of tax	949			627
Comprehensive income	3,410			5,408
Less: Comprehensive income (loss) attributable to non-controlling interest	(49		)	(56		)
Comprehensive income attributable to HNI Corporation	$	3,459		$	5,464

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

3

HNI Corporation and Subsidiaries Condensed Consolidated Balance Sheets (In thousands)
(Unaudited)
	March 31, 2018		December 30, 2017
Assets
Current Assets:
Cash and cash equivalents	$	28,813	$	23,348
Short-term investments	1,831		2,015
Receivables	223,043		258,551
Inventories	158,688		155,683
Prepaid expenses and other current assets	47,706		49,283
Total Current Assets	460,081		488,880
Property, Plant, and Equipment:
Land and land improvements	28,437		28,593
Buildings	285,493		306,137
Machinery and equipment	550,565		556,571
Construction in progress	40,973		39,788
	905,468		931,089
Less accumulated depreciation	530,528		540,768
Net Property, Plant, and Equipment	374,940		390,321
Goodwill and Other Intangible Assets	486,711		490,892
Deferred Income Taxes	193		193
Other Assets	23,214		21,264
Total Assets	$	1,345,139	$	1,391,550

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

4

HNI Corporation and Subsidiaries Condensed Consolidated Balance Sheets (In thousands, except par value)
(Unaudited)
	March 31, 2018			December 30, 2017
Liabilities and Equity
Current Liabilities:
Accounts payable and accrued expenses	$	347,029		$	450,128
Current maturities of long-term debt	78,964			36,648
Current maturities of other long-term obligations	1,862			2,927
Total Current Liabilities	427,855			489,703
Long-Term Debt	250,000			240,000
Other Long-Term Liabilities	77,112			70,409
Deferred Income Taxes	75,931			76,861
Equity:
HNI Corporation shareholders' equity:
Capital Stock:
Preferred stock - $1 par value, authorized 2,000 shares, no shares outstanding	—			—
Common stock - $1 par value, authorized 200,000 shares, outstanding:
March 31, 2018 – 43,530 shares;
December 30, 2017 – 43,354 shares	43,530			43,354
Additional paid-in capital	20,124			7,029
Retained earnings	452,748			467,296
Accumulated other comprehensive income (loss)	(2,662		)	(3,611		)
Total HNI Corporation shareholders' equity	513,740			514,068
Non-controlling interest	501			509
Total Equity	514,241			514,577
Total Liabilities and Equity	$	1,345,139		$	1,391,550

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

5

HNI Corporation and Subsidiaries Consolidated Statements of Equity (In thousands, except per share data)
(Unaudited)
	Common Stock			Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Non-controlling Interest			Total Shareholders’ Equity
Balance, December 30, 2017	$	43,354		$	7,029		$	467,296		$	(3,611	)	$	509		$	514,577
Comprehensive income:
Net income (loss)	—			—			2,510			—			(49		)	2,461
Other comprehensive income (loss), net of tax	—			—			—			949			—			949
Change in ownership of non-controlling interest	—			—			(41		)	—			41			—
Cash dividends; $0.285 per share	—			—			(12,381		)	—			—			(12,381		)
Common shares – treasury:
Shares purchased	(153		)	(1,175		)	(4,636		)	—			—			(5,964		)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	329			14,270			—			—			—			14,599
Balance, March 31, 2018	$	43,530		$	20,124		$	452,748		$	(2,662	)	$	501		$	514,241

	Common Stock			Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Non-controlling Interest			Total Shareholders’ Equity
Balance, December 31, 2016	$	44,079		$	—		$	461,524		$	(5,000	)	$	406		$	501,009
Comprehensive income:
Net income (loss)	—			—			4,837			—			(56		)	4,781
Other comprehensive income (loss), net of tax	—			—			—			627			—			627
Change in ownership of non-controlling interest	—			—			—			—			—			—
Cash dividends; $0.275 per share	—			—			(12,132		)	—			—			(12,132		)
Common shares – treasury:
Shares purchased	(234		)	(6,602		)	(4,839		)	—			—			(11,675		)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	395			18,455			—			—			—			18,850
Balance, April 1, 2017	$	44,240		$	11,853		$	449,390		$	(4,373	)	$	350		$	501,460

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

6

HNI Corporation and Subsidiaries Condensed Consolidated Statements of Cash Flows (In thousands)
(Unaudited)
	Three Months Ended
	March 31, 2018			April 1, 2017
Net Cash Flows From (To) Operating Activities:
Net income	$	2,461		$	4,781
Non-cash items included in net income:
Depreciation and amortization	18,445			18,839
Other post-retirement and post-employment benefits	447			398
Stock-based compensation	3,712			4,671
Deferred income taxes	(1,196		)	646
(Gain) loss on sale and retirement of long-lived assets, net	808			784
Amortization of deferred gain on sale leaseback transaction	(43		)	—
Other – net	(699		)	(1,890		)
Net increase (decrease) in operating assets and liabilities, net of divestitures	(55,135		)	(57,899		)
Increase (decrease) in other liabilities	447			(2,339		)
Net cash flows from (to) operating activities	(30,753		)	(32,009		)
Net Cash Flows From (To) Investing Activities:
Capital expenditures	(12,383		)	(25,072		)
Proceeds from sale of property, plant, and equipment	18,353			76
Capitalized software	(3,948		)	(7,704		)
Purchase of investments	(605		)	(1,539		)
Sales or maturities of investments	650			1,611
Other – net	794			1,510
Net cash flows from (to) investing activities	2,861			(31,118		)
Net Cash Flows From (To) Financing Activities:
Payments of long-term debt and other financing	(104,573		)	(68,579		)
Proceeds from long-term debt	155,047			146,331
Dividends paid	(12,381		)	(12,132		)
Purchase of HNI Corporation common stock	(7,345		)	(11,266		)
Proceeds from sales of HNI Corporation common stock	2,764			1,798
Withholding related to net share settlements of equity based awards	(155		)	(209		)
Net cash flows from (to) financing activities	33,357			55,943
Net increase (decrease) in cash and cash equivalents	5,465			(7,184		)
Cash and cash equivalents at beginning of period	23,348			36,312
Cash and cash equivalents at end of period	$	28,813		$	29,128

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

7

HNI Corporation and Subsidiaries

Notes to Condensed Consolidated Financial Statements (Unaudited)

March 31, 2018

Note 1.  Basis of Presentation

The accompanying unaudited, condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X.  Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for complete financial statements.  The December 30, 2017 consolidated balance sheet included in this Form 10-Q was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles.  In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement have been included. Operating results for the three-month period ended March 31, 2018 are not necessarily indicative of the results expected for the fiscal year ending December 29, 2018.  For further information, refer to the consolidated financial statements and accompanying notes included in HNI Corporation's (the "Corporation") Annual Report on Form 10-K for the fiscal year ended December 30, 2017.

Note 2. Revenue from Contracts with Customers

The Corporation implemented ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), 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.

Disaggregation of Revenue

Revenue from contracts with customers disaggregated by sales channel and by segment is as follows (in thousands):

		Three Months Ended
	Segment	March 31, 2018		April 1, 2017
Supplies-driven channel	Office Furniture	$	191,228	$	178,964
Contract channel	Office Furniture	189,687		181,017
Hearth	Hearth Products	124,154		117,686
Net sales		$	505,069	$	477,667

The majority of revenue presented as "Net sales" in the Condensed 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 the product is sold under. See “Note 17. Reportable Segment Information” in the Notes to Condensed 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 contract. 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.

8

Contract assets and liabilities were as follows (in thousands):

	March 31, 2018		December 30, 2017
Trade receivables (1)	$	225,283	$	260,455
Contract assets (current) (2)	$	483	$	300
Contract assets (long-term) (3)	$	4,147	$	2,350
Contract liabilities (4)	$	33,103	$	54,295

The index below indicates the line item in the Condensed 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 three months ended March 31, 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	(120		)	—
Contract liabilities recognized and recorded to contra revenue as a result of performance obligations satisfied				(28,153		)
Contract liabilities paid	—			45,326
Cash received in advance and not recognized as revenue	—			(20,806		)
Reclassification of cash received in advance to revenue as a result of performance obligations satisfied	—			24,179
Impact of business combination	—			646
Net change	$	1,980		$	21,192

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. See “Note 7. Product Warranties” in the Notes to Condensed Consolidated Financial Statements for additional information on warranty obligations.

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.

9

Accounting Policies and Practical Expedients Elected

The Corporation elected to use the modified-retrospective method of adopting the new standard on revenue recognition. It 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 as fulfillment activities when the activities are performed after a customer obtains control of the good. 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, they are considered fulfillment activities rather than a promised good or service.

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 that are imposed on and concurrent with a specific revenue-producing transaction and collected by the entity from a customer, 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.

These accounting policies and practical expedients have been applied consistently to all revenue transactions.

Note 3.  Restructuring

Restructuring costs recorded in the Condensed Consolidated Statements of Comprehensive Income are as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Cost of sales - accelerated depreciation	$	—	$	4,199
Restructuring charges	1,338		2,123
Total restructuring costs	$	1,338	$	6,322

Restructuring costs in 2018 were primarily incurred as part of the previously announced closure of the office furniture manufacturing facility in Orleans, Indiana. Restructuring costs in 2017, which include accelerated depreciation recorded in "Cost of sales" in the Condensed 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.

10

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 Condensed Consolidated Balance Sheets. The following is a summary of changes in restructuring accruals during the three months ended (in thousands):

	Severance Costs			Facility Exit Costs & Other			Total
Restructuring allowance as of December 30, 2017	$	1,343		$	516		$	1,859
Restructuring charges	74			1,264			1,338
Cash payments	(1,333		)	(1,724		)	(3,057		)
Restructuring allowance as of March 31, 2018	$	84		$	56		$	140

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 of property, plant, and equipment" in the Condensed Consolidated Statements of Cash Flows. In accordance with ASC 840, Leases, the $5.1 million gain on the sale of the facility is deferred and will be amortized as a reduction to rent expense evenly over the term of the lease. 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 $4.6 million and included within "Other Long-Term Liabilities", both in the Condensed Consolidated Balance Sheets. The transaction did not have a material impact to the Condensed Consolidated Statements of Comprehensive Income.

Note 4. Acquisitions and Divestitures

Office Furniture Dealerships

As part of the Corporation's ongoing business strategy, it continues to acquire and divest small office furniture dealerships, for which the impact is not material to the Corporation's financial statements.

Note 5.  Inventories

The Corporation values its inventory at the lower of cost or net realizable value with approximately 86 percent valued by the last-in, first-out ("LIFO") costing method.

(In thousands)	March 31, 2018			December 30, 2017
Finished products	$	98,844		$	101,715
Materials and work in process	87,226			81,202
LIFO allowance	(27,382		)	(27,234		)
Total inventories	$	158,688		$	155,683

Note 6. Goodwill and Other Intangible Assets

Goodwill and other intangible assets included in the Condensed Consolidated Balance Sheets consisted of the following (in thousands):

	March 31, 2018		December 30, 2017
Goodwill	$	279,480	$	279,505
Definite-lived intangible assets	178,078		182,186
Indefinite-lived intangible assets	29,153		29,201
Total goodwill and other intangible assets	$	486,711	$	490,892

11

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 30, 2017
Goodwill	$	137,845		$	183,199		$	321,044
Accumulated impairment losses	(41,396		)	(143		)	(41,539		)
Net goodwill balance as of December 30, 2017	96,449			183,056			279,505
Foreign currency translation adjustment	(25		)	—			(25		)
Balance as of March 31, 2018
Goodwill	137,820			183,199			321,019
Accumulated impairment losses	(41,396		)	(143		)	(41,539		)
Net goodwill balance as of March 31, 2018	$	96,424		$	183,056		$	279,480

Definite-lived intangible assets

The table below summarizes amortizable definite-lived intangible assets, which are reflected in "Goodwill and Other Intangible Assets" in the Condensed Consolidated Balance Sheets (in thousands):

	March 31, 2018						December 30, 2017
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Patents	$	40	$	28	$	12	$	40	$	26	$	14
Software	168,612		38,690		129,922		167,105		34,792		132,313
Trademarks and trade names	7,564		2,226		5,338		7,564		2,061		5,503
Customer lists and other	105,871		63,065		42,806		106,090		61,734		44,356
Net definite-lived intangible assets	$	282,087	$	104,009	$	178,078	$	280,799	$	98,613	$	182,186

Amortization expense is reflected in "Selling and administrative expenses" in the Condensed Consolidated Statements of Comprehensive Income and was as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Capitalized software	$	4,167	$	1,340
Other definite-lived intangibles	$	1,688	$	1,774

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):

	2018		2019		2020		2021		2022
Amortization expense	$	23.1	$	22.1	$	21.2	$	20.2	$	18.3

The occurrence of events such as acquisitions, dispositions, or impairments in the future may result in changes to amounts.

12

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 Condensed Consolidated Balance Sheets (in thousands):

	March 31, 2018		December 30, 2017
Trademarks and trade names	$	29,153	$	29,201

Impairment Analysis

The Corporation evaluates its goodwill and indefinite-lived intangible assets for impairment on an annual basis during the fourth quarter or whenever indicators of impairment exist.

Note 7.  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):

	Three Months Ended
	March 31, 2018			April 1, 2017
Balance at beginning of period	$	15,388		$	15,250
Accruals for warranties issued during period	5,992			5,540
Adjustments related to pre-existing warranties	68			(116		)
Settlements made during the period	(6,010		)	(5,548		)
Balance at end of period	$	15,438		$	15,126

The current and long-term portions of the allowance for estimated settlements are included within "Accounts payable and accrued expenses" and "Other Long-Term Liabilities", respectively, in the Condensed Consolidated Balance Sheets. The following table summarizes when these estimated settlements are expected to be paid (in thousands):

	March 31, 2018		December 30, 2017
Current - in the next twelve months	$	9,512	$	9,524
Long-term - beyond one year	5,926		5,864
Total estimated settlements	$	15,438	$	15,388

13

Note 8.  Long-Term Debt

Long-term debt is as follows (in thousands):

	March 31, 2018		December 30, 2017
Revolving credit facility with interest at a variable rate (March 31, 2018 - 3.0%; December 30, 2017 - 2.7%)	$	328,000	$	267,500
Other amounts	964		9,148
Total debt	328,964		276,648
Less: Current maturities of long-term debt	78,964		36,648
Long-term debt	$	250,000	$	240,000

As of March 31, 2018, the Corporation’s revolving credit facility borrowings were under the credit agreement entered into January 6, 2016 with a scheduled maturity of January 6, 2021. 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 Condensed Consolidated Balance Sheets. The long-term portion of $0.6 million is reflected in "Other Assets" in the Condensed Consolidated Balance Sheets.

As of March 31, 2018, there was $328 million outstanding under the $400 million revolving credit facility of which $250 million was classified as long-term since the Corporation does not expect to repay the borrowings within a year. Because the Corporation expects, but is not required, to repay the remaining $78 million in the next twelve months, it was classified as current.

The revolving credit facility under the credit agreement is the primary source of committed funding from which the Corporation finances its planned capital expenditures and strategic initiatives, such as acquisitions, repurchases of common stock, and certain working capital needs.

The credit agreement contains a number of covenants. Non-compliance with covenants in the credit agreement could prevent the Corporation from being able to access further borrowings under the revolving credit facility, require immediate repayment of all amounts outstanding with respect to the revolving credit facility, and/or increase the cost of borrowing.

Certain 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, nonrecurring charges, and all non-cash items increasing net income.  As of March 31, 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.

Subsequent to quarter end, on April 20, 2018, the Corporation entered into a Third Amended and Restated Credit Agreement. This amendment to the credit agreement extends the maturity of the facility to April 20, 2023, with the option for two additional one-year extensions, and increases the maximum borrowing capacity to$450 million. All other terms and conditions of the agreement were substantially unchanged.

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Note 9.  Income Taxes

The Corporation's tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items. The following table summarizes the Corporation's income tax provision (dollars in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Income before income taxes	$	1,462		$	6,959
Income tax expense (benefit)	$	(999	)	$	2,178
Effective tax rate	(66.1		%)	31.0		%

The Corporation's effective tax rate was lower in the three months ended March 31, 2018 principally due to the release of a valuation allowance for certain foreign jurisdictions and the enactment of the Tax Cuts and Jobs Act in 2017 (the "Act").

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% to 21% 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. 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 is electing 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 are not 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. Additionally, under the Act and for purposes of Internal Revenue Code Section 162(m) Excessive Executive Compensation Limit, the Corporation is electing to allocate deductible compensation to cash compensation first, then to share-based compensation.

Note 10.  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 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.

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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 March 31, 2018
Cash and cash equivalents (including money market funds) (1)	$	28,813	$	28,813	$	—	$	—
Government securities (2)	$	6,582	$	—	$	6,582	$	—
Corporate bonds (2)	$	5,757	$	—	$	5,757	$	—
Derivative financial instruments (3)	$	4,715	$	—	$	4,715	$	—
Variable-rate debt obligations (4)	$	328,000	$	—	$	328,000	$	—
Deferred stock-based compensation (5)	$	8,649	$	—	$	8,649	$	—
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 Condensed 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"

Note 11.  Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity

The following tables summarize the components of accumulated other comprehensive income (loss) and the changes in accumulated other comprehensive income (loss), net of tax, as applicable for the three months ended (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 December 30, 2017	$	31	$	(132	)	$	(5,630	)	$	2,120		$	(3,611	)
Other comprehensive income (loss) before reclassifications	1		(100		)	—			1,476			1,377
Tax (expense) or benefit	—		21			—			(362		)	(341		)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	—		—			—			(87		)	(87		)
Balance as of March 31, 2018	$	32	$	(211	)	$	(5,630	)	$	3,147		$	(2,662	)

Amounts in parentheses indicate reductions to equity.

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	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 December 31, 2016	$	(1,188	)	$	(105	)	$	(5,167	)	$	1,460		$	(5,000	)
Other comprehensive income (loss) before reclassifications	345			27			—			226			598
Tax (expense) or benefit	—			(9		)	—			(83		)	(92		)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	—			—			—			121			121
Balance as of April 1, 2017	$	(843	)	$	(87	)	$	(5,167	)	$	1,724		$	(4,373	)

Amounts in parentheses indicate reductions to equity.

Interest Rate Swap

In March 2016, the Corporation entered into 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 notional value expiring January 2021. As of March 31, 2018, the fair value of the Corporation's interest rate swap was an asset of $4.7 million, which is reflected in "Other Assets" in the Condensed Consolidated Balance Sheets. The unrecognized change in value of the interest rate swap is reported net of tax as $3.1 million in "Accumulated other comprehensive income (loss)" in the Condensed Consolidated Balance Sheets.

The following table details the reclassifications from accumulated other comprehensive income (loss) (in thousands):

		Three Months Ended
Details about Accumulated Other Comprehensive Income (Loss) Components	Affected Line Item in the Statement Where Net Income is Presented	March 31, 2018			April 1, 2017
Derivative financial instruments
Interest rate swap	Interest (expense) or income	$	115		$	(192	)
	Tax (expense) or benefit	(28		)	71
	Net of tax	$	87		$	(121	)

Amounts in parentheses indicate reductions to profit.

Stock Repurchase

The following table summarizes shares repurchased and settled by the Corporation (in thousands, except share data):

	Three Months Ended
	March 31, 2018			April 1, 2017
Shares repurchased	152,822			234,375
Cash purchase price	$	(5,964	)	$	(11,675	)
Purchases unsettled as of quarter end	—			409
Prior year purchases settled in current year	(1,381		)	—
Shares repurchased per cash flow	$	(7,345	)	$	(11,266	)

As of March 31, 2018, approximately $72.0 million of the Corporation's Board of Directors' ("Board") current repurchase authorization remained unspent.

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Dividend

The Corporation declared and paid cash dividends per share as follows (in dollars):

	Three Months Ended
	March 31, 2018		April 1, 2017
Common shares	$	0.285	$	0.275

Note 12.  Earnings Per Share

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):

	Three Months Ended
	March 31, 2018		April 1, 2017
Numerator:
Numerator for both basic and diluted EPS attributable to HNI Corporation net income	$	2,510	$	4,837
Denominators:
Denominator for basic EPS weighted-average common shares outstanding	43,360		44,050
Potentially dilutive shares from stock-based compensation plans	774		1,403
Denominator for diluted EPS	44,134		45,453
Earnings per share – basic	$	0.06	$	0.11
Earnings per share – diluted	$	0.06	$	0.11

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.

	Three Months Ended
	March 31, 2018	April 1, 2017
Common stock equivalents excluded because their inclusion would be anti-dilutive	1,226	616

Note 13. Stock-Based Compensation

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 approved stock-based compensation plans and shares issued under the approved member stock purchase plans. The following table summarizesexpense associated with these plans (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Compensation cost	$	3,712	$	4,671

The options and units granted by the Corporation had fair values as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Stock options	$	6,611	$	7,206

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The following table summarizes unrecognized compensation expense and the weighted-average remaining service period for non-vested stock options and restricted stock units as of March 31, 2018:

	Unrecognized Compensation Expense (in thousands)		Weighted-Average Remaining Service Period (years)
Non-vested stock options	$	5,543	1.3
Non-vested restricted stock units	$	238	0.7

Note 14.  Post-Retirement Health Care

The following table sets forth the components of net periodic benefit costs included in the Condensed Consolidated Statements of Comprehensive Income (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Service cost	$	213	$	185
Interest cost	197		206
Amortization of net (gain) loss	37		7
Net periodic post-retirement benefit cost	$	447	$	398

Note 15.  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 2. Revenue from Contracts with Customers" in the Notes to Condensed 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 condensed 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 condensed consolidated financial statements or related disclosures.

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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 postretirement 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 condensed consolidated financial statements or related disclosures.

Note 16.  Guarantees, Commitments, and Contingencies

The Corporation utilizes letters of credit and surety bonds in the amount of $18 million to back certain insurance policies and payment obligations.  The Corporation utilizes trade letters of credit and banker's acceptances in the amount of $4 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, for which the Corporation believes it has strong legal and factual defenses.  The Corporation intends to vigorously prosecute the Iowa action and defend the Texas action.

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.

Note 17.  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 metal and wood 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 corporate expenses include the net costs of the Corporation's corporate operations, interest income, and interest expense.  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, 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.

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Reportable segment data reconciled to the Corporation's condensed consolidated financial statements was as follows (in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Net Sales:
Office furniture	$	380,915		$	359,981
Hearth products	124,154			117,686
Total	$	505,069		$	477,667
Income Before Income Taxes:
Office furniture	$	(387	)	$	6,444
Hearth products	17,114			11,811
General corporate	(15,265		)	(11,296		)
Total	$	1,462		$	6,959
Depreciation and Amortization Expense:
Office furniture	$	10,986		$	12,885
Hearth products	1,962			3,488
General corporate	5,497			2,466
Total	$	18,445		$	18,839
Capital Expenditures (including capitalized software):
Office furniture	$	11,577		$	21,020
Hearth products	2,938			2,078
General corporate	1,816			9,678
Total	$	16,331		$	32,776
	As of March 31, 2018			As of December 30, 2017
Identifiable Assets:
Office furniture	$	787,106		$	821,767
Hearth products	344,653			347,189
General corporate	213,380			222,594
Total	$	1,345,139		$	1,391,550

Note 18. Subsequent Events

Subsequent to quarter end, on April 20, 2018, the Corporation entered into a Third Amended and Restated Credit Agreement. This amendment to the credit agreement extends the maturity of the facility to April 20, 2023, with the option for two additional one-year extensions, and increases the maximum borrowing capacity to $450 million. All other terms and conditions of the agreement were substantially unchanged.

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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion of the Corporation's historical results of operations and of its liquidity and capital resources should be read in conjunction with the Unaudited Condensed Consolidated Financial Statements of the Corporation and related notes. Statements that are not historical are forward-looking and involve risks and uncertainties. See "Forward-Looking Statements" at the end of this section for further information.

Overview

The Corporation has two reportable segments: office furniture and hearth products. The Corporation is a leading global office furniture manufacturer and the leading manufacturer and marketer of hearth products. The Corporation utilizes a split and focus with leverage, decentralized business model to deliver value to customers via various brands and selling models. The Corporation is focused on growing its existing businesses while seeking out and developing new opportunities for growth.

Net sales for the first quarter of fiscal 2018 were $505.1 million, an increase of 5.7 percent, compared to net sales of $477.7 million in the first quarter of fiscal 2017.  The change was driven by an increase in both the office furniture and hearth products segments. The closure and divestitures of small office furniture companies resulted in a net decrease in sales of $12.4 million compared to the first quarter of fiscal 2017.

Net income attributable to the Corporation in the first quarter of fiscal 2018 was $2.5 million compared to net income of $4.8 million in the first quarter of fiscal 2017. The decrease was primarily driven by amortization and implementation costs from the Corporation's Business Systems Transformation initiative, unfavorable business and product mix, and input cost inflation. These factors were partially offset by higher sales volume and lower restructuring and transition costs.

Recent Developments

On April 19, 2018, Stan Askren announced his retirement as President of the Corporation and informed the Board of Directors (the "Board") of his intention to retire as Chief Executive Officer and Chairman of the Board no later than December 31, 2018. Consistent with a well-established and long-term succession plan, the Board promoted Jeffrey Lorenger as President of the Corporation and elected him as a Director of the Corporation. Mr. Lorenger will serve in the class of directors whose term expires at the 2019 Annual Meeting of Shareholders. The Board further anticipates Mr. Lorenger will assume the role of Chief Executive Officer no later than December 31, 2018.

Results of Operations

The following table presents certain key highlights from the results of operations (in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017			Percent Change
Net sales	$	505,069		$	477,667		5.7	%
Cost of sales	328,150			303,944			8.0	%
Gross profit	176,919			173,723			1.8	%
Selling and administrative expenses	171,895			163,666			5.0	%
Restructuring charges	1,338			2,123			(37.0	)%
Operating income	3,686			7,934			(53.5	)%
Interest expense, net	2,224			975			128.1	%
Income before income taxes	1,462			6,959			(79.0	)%
Income tax expense (benefit)	(999		)	2,178			(145.9	)%
Net income (loss) attributable to non-controlling interest	(49		)	(56		)	12.5	%
Net income attributable to HNI Corporation	$	2,510		$	4,837		(48.1	)%

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Net Sales

Consolidated net sales for the first quarter of 2018 increased 5.7 percent or $27.4 million compared to the same quarter last year. The change was driven by an increase in both the office furniture and hearth products segments. Office furniture segment sales increased in the North American contract, supplies-driven, and international businesses, but were partially offset by a decrease of $12.4 million from the net impact of closing and divesting small office furniture companies. The hearth products segment saw an increase in the new construction business due to growth in single family housing and an increase in the retail business due to an increase in pellet appliance demand.

Gross Profit Margin

Gross profit as a percentage of net sales decreased 140 basis points in the first quarter of 2018 compared to the same quarter last year primarily driven by unfavorable business and product mix, input cost inflation, and implementation costs from the Business Systems Transformation initiative, partially offset by higher volume and lower restructuring and transition costs.

First quarter 2018 cost of sales included $1.3 million of transition costs primarily related to the previously announced closure of the office furniture manufacturing facility in Orleans, Indiana and structural realignment in China. Specific items incurred include production move costs.

First quarter 2017 cost of sales included $4.2 million of restructuring costs and $3.8 million of transition costs related to the previously announced closures of the hearth manufacturing facilities in Paris, Kentucky and Colville, Washington and the office furniture manufacturing facility in Orleans, Indiana and structural realignments in China and between office furniture facilities in Muscatine, Iowa. Specific items incurred include accelerated depreciation and production move costs.

Selling and Administrative Expenses

Selling and administrative expenses increased in the first quarter of 2018 compared to the same quarter last year primarily driven by amortization and implementation costs from the Business Systems Transformation initiative, partially offset by cost management and the impact of closing and divesting small office furniture companies.

Restructuring Charges

In the first quarter of 2018, the Corporation recorded $1.3 million of restructuring costs primarily due to the previously announced closure of the office furniture manufacturing facility in Orleans, Indiana. In the first quarter of 2017, the Corporation recorded $2.1 million of restructuring costs due to the previously announced closures of the hearth manufacturing facilities in Paris, Kentucky and Colville, Washington and the office furniture manufacturing facility in Orleans, Indiana.

Interest Expense

Interest expense for the first quarter of 2018 increased $1.3 million compared to the same quarter last year. Higher average debt balances and variable interest rates drove approximately $0.7 million of the increase.  During the first quarter of 2017, the Corporation capitalized approximately $0.6 million of interest costs related to the Business System Transformation initiative. Capitalization of interest ceased during the third quarter of 2017, driving a relative increase in current year interest expense.

Income Taxes

The Corporation's tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items. The Corporation's income tax provision for the three months ended March 31, 2018 was a benefit of $1.0 million on pre-tax income of $1.5 million, or an effective tax rate of -66.1 percent. The income tax provision includes a lower rate in 2018 due to the enactment of the Tax Cuts and Jobs Act in 2017 (the "Act") and the impact of releasing a valuation allowance for certain foreign jurisdictions during the first quarter of 2018. For the three months ended April 1, 2017, the Corporation's income tax provision was $2.2 million on pre-tax income of $7.0 million, or an effective tax rate of 31.0 percent. Refer to "Note 9. Income Taxes" for further information.

Net Income Attributable to HNI Corporation

Net income attributable to the Corporation was $2.5 million or $0.06 per diluted share in the first quarter of 2018 compared to $4.8 million or $0.11 per diluted share in the first quarter of 2017.

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Office Furniture

The following table presents certain key highlights from the results of operations in the office furniture segment (in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017		Percent Change
Net sales	$	380,915		$	359,981	5.8	%
Operating profit (loss)	$	(387	)	$	6,444	(106.0	)%

First quarter 2018 net sales for the office furniture segment increased 5.8 percent or $20.9 million compared to the same quarter last year. Sales increased in the North American contract, supplies-driven, and international businesses, but were partially offset by a decrease of $12.4 million due to the net impact of closing and divesting small office furniture companies.

First quarter 2018 operating profit decreased 106.0 percent or $6.8 million compared to the same quarter last year as a result of amortization and implementation costs from the Business Systems Transformation initiative, input cost inflation, and unfavorable business and product mix, partially offset by higher volume and lower restructuring and transition costs.

In the first quarter of 2018, the office furniture segment recorded $1.2 million of restructuring costs and $1.0 million of transition costs associated with the previously announced closure of the office furniture manufacturing facility in Orleans, Indiana and structural realignment in China. Specific items incurred include severance and production move costs. Of these charges, $1.0 million was included in cost of sales.

In the first quarter of 2017, the office furniture segment recorded $3.4 million of restructuring costs and $3.0 million of transition costs primarily associated with the previously announced closure of the office furniture manufacturing facility in Orleans, Indiana and structural realignments in China and between office furniture facilities in Muscatine, Iowa. Specific items incurred include severance, accelerated depreciation, and production move costs. Of theses charges, $5.6 million was included in cost of sales.

Hearth Products

The following table presents certain key highlights from the results of operations in the hearth products segment (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017		Percent Change
Net sales	$	124,154	$	117,686	5.5	%
Operating profit	$	17,114	$	11,811	44.9	%

First quarter 2018 net sales for the hearth products segment increased 5.5 percent or $6.5 million compared to the same quarter last year. The change was driven by an increase in the new construction business due to growth in single family housing and an increase in the retail business due to an increase in pellet appliance demand.

First quarter 2018 operating profit increased 44.9 percent or $5.3 million compared to the same quarter last year as a result of higher volume and lower restructuring and transition costs.

In the first quarter of 2018, the hearth products segment recorded $0.1 million of restructuring costs and $0.3 million of transition costs associated with the previously announced closures of the hearth manufacturing facilities in Paris, Kentucky and Colville, Washington. Specific items incurred include production move costs and final facility closing costs. Of these charges, $0.3 million was included in cost of sales.

In the first quarter of 2017, the hearth products segment recorded $3.0 million of restructuring costs and $0.8 million of transition costs associated with the previously announced closures of the hearth manufacturing facilities in Paris, Kentucky and Colville, Washington. Specific items incurred include severance, accelerated depreciation, and production move costs. Of these charges, $2.4 million was included in cost of sales.

24

Liquidity and Capital Resources

Cash Flow – Operating Activities

Operating activities used $30.8 million of cash in the first three months of 2018 compared to $32.0 million of cash used in the first three months of 2017.  The net cash usage was consistent with the prior year due to normal seasonality in working capital and relatively comparable income for the quarter. Cash flow from operating activities is expected to be positive for the year.

Cash Flow – Investing Activities

Capital expenditures, including capitalized software, for the first three months of fiscal 2018 were $16.3 million. These expenditures are primarily focused on machinery, equipment, and tooling required to support new products, continuous improvements, and cost savings initiatives in manufacturing processes.  For the full year 2018, capital expenditures are expected to be approximately $75 to $85 million.

Real Estate Transaction - In the first quarter of 2018, the Corporation entered into a sale-leaseback transaction, 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 of property, plant, and equipment" in the Condensed Consolidated Statements of Cash Flows. In accordance with ASC 840, Leases, the gain on the sale of the facility is deferred and will be amortized as a reduction to rent expense evenly over the term of the lease. See "Note 3. Restructuring" in the Notes to Condensed Consolidated Financial Statements for further information.

Cash Flow – Financing Activities

Long-Term Debt - The Corporation maintains a revolving credit facility as the primary source of committed funding from which the Corporation finances its planned capital expenditures, strategic initiatives, and seasonal working capital needs. Cash flows included in financing activities represent periodic borrowings and repayments under the revolving credit facility. See "Note 8. Long-Term Debt" in the Notes to Condensed Consolidated Financial Statements for further information.

Dividend - The Corporation is committed to maintaining and/or modestly growing the quarterly dividend. Cash dividends declared and paid per share were as follows (in dollars):

	Three Months Ended
	March 31, 2018		April 1, 2017
Common shares	$	0.285	$	0.275

During the quarter, the Board declared the regular quarterly cash dividend on February 14, 2018. The dividend was paid on March 5, 2018 to shareholders of record on February 26, 2018. This was a 3.6 percent increase over the comparable prior year quarterly dividend paid on March 6, 2017.

Stock Repurchase - The Corporation’s capital strategy related to stock repurchase is focused on offsetting the dilutive impact of issuances for various compensation related matters. The Corporation may elect to opportunistically purchase additional shares based on excess cash generation and/or share price considerations. During the three months ended March 31, 2018, the Corporation repurchased 152,822 shares of its common stock at a cost of approximately $6.0 million, or an average price of $39.02 per share.  During the three months ended March 31, 2018, the Corporation also paid approximately $1.4 million relating to shares repurchased but not yet settled as of December 30, 2017. As of March 31, 2018, $72.0 million of the Board's current repurchase authorization remained unspent.

Cash, cash equivalents, and short-term investments, coupled with cash flow from future operations, borrowing capacity under the existing credit agreement, and the ability to access capital markets, are expected to be adequate to fund operations and satisfy cash flow needs for at least the next twelve months.

Off-Balance Sheet Arrangements

The Corporation does not have any off-balance sheet arrangements that have or are reasonably likely to have a current or future material effect on the Corporation's financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources.

25

Contractual Obligations

Contractual obligations associated with ongoing business and financing activities will result in cash payments in future periods.  A table summarizing the amounts and estimated timing of these future cash payments was provided in the Corporation's Annual Report on Form 10-K for the year ended December 30, 2017.  There were no material changes outside the ordinary course of business in the Corporation's contractual obligations or the estimated timing of the future cash payments for the first three months of fiscal 2018.

Commitments and Contingencies

See "Note 16. Guarantees, Commitments, and Contingencies" in the Notes to Condensed Consolidated Financial Statements for further information.

Critical Accounting Policies and Estimates

The preparation of the financial statements requires the Corporation to make estimates and judgments affecting the reported amount of assets, liabilities, revenues, and expenses, and related disclosure of contingent assets and liabilities.  The Corporation continually evaluates its accounting policies and estimates.  The Corporation bases its estimates on historical experience and on a variety of other assumptions believed by management to be reasonable in order to make judgments about the carrying value of assets and liabilities.  Actual results may differ from these estimates under different assumptions or conditions.  A summary of the more significant accounting policies requiring the use of estimates and judgments in preparing the financial statements is provided in the Corporation's Annual Report on Form 10-K for the year ended December 30, 2017.

Recently Issued Accounting Standards Not Yet Adopted

In February 2016, the FASB issued ASU No. 2016-02, Leases. The new standard requires lessees to recognize most leases, including operating leases, on-balance sheet via a right of use asset and lease liability. Changes to the lessee accounting model may change key balance sheet measures and ratios, potentially affecting analyst expectations and compliance with financial covenants. The new standard becomes effective for the Corporation in fiscal 2019, but may be adopted at any time, and requires a modified-retrospective transition. The Corporation is currently evaluating the effect the standard will have on consolidated financial statements and related disclosures.

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments. The new standard replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses by requiring consideration of a broader range of reasonable and supportable information and is intended to provide financial statement users with more useful information about expected credit losses on financial instruments. The new standard becomes effective for the Corporation in fiscal 2020 and requires a cumulative effect adjustment in retained earnings as of the beginning of the year of adoption. The Corporation is currently evaluating the effect the standard will have on consolidated financial statements and related disclosures.

In August 2017, the FASB issued ASU No. 2017-12, Targeted Improvements to Accounting for Hedging Activities. The new standard improves the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its financial statements and make certain targeted improvements to simplify the application of the hedge accounting guidance through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. The new standard becomes effective for the Corporation in fiscal 2019, with early adoption permitted. For cash flow and net investment hedges existing at the date of adoption, entities will apply the new guidance using a modified retrospective approach by recording a cumulative effect adjustment in retained earnings as of the beginning of the year of adoption. Presentation and disclosure requirements are applied prospectively. The Corporation is currently evaluating the effect the standard will have on consolidated financial statements and related disclosures.

In February 2018, the FASB issued ASU No. 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The new standard allows entities to reclassify certain stranded tax effects from accumulated other comprehensive income to retained earnings resulting from the Tax Cuts and Jobs Act of 2017 (the "Act"). The standard also requires certain disclosures about stranded tax effects. The new standard becomes effective for the Corporation in fiscal 2019, with early adoption permitted. The standard should be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Act is recognized. The Corporation is currently evaluating the effect the standard will have on consolidated financial statements and related disclosures.

26

Looking Ahead

Management remains optimistic about the long-term prospects in the office furniture and hearth products markets.  Management believes the Corporation continues to compete well and remains confident the investments made in the business will continue to generate strong returns for shareholders.

Forward-Looking Statements

Statements in this report to the extent they are not statements of historical or present fact, including statements as to plans, outlook, objectives, and future financial performance, are "forward-looking" statements, within the meaning of Section 21 of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995.  Words such as "anticipate," "believe," "could," "confident," "estimate," "expect," "forecast," "hope," "intend," "likely," "may," "plan," "possible," "potential," "predict," "project," "should," "will," "would," and variations of such words and similar expressions identify forward-looking statements.

Forward-looking statements involve known and unknown risks and uncertainties, which may cause the Corporation's actual results in the future to differ materially from expected results. These risks and uncertainties include but are not limited to: the levels of office furniture needs and housing starts; overall demand for the Corporation's products; general economic and market conditions in the United States and internationally; industry and competitive conditions; the consolidation and concentration of the Corporation's customers; the Corporation's reliance on its network of independent dealers; changes in raw material, component, or commodity pricing; market acceptance and demand for the Corporation's new products; the Corporation's ability to successfully execute its business software system integration; the Corporation's ability to achieve desired results from closures and structural cost reduction initiatives; the Corporation's ability to achieve the anticipated benefits from integrating its acquired businesses and alliances; changing legal, regulatory, environmental, and healthcare conditions; the risks associated with international operations; the potential impact of product defects; the various restrictions on the Corporation's financing activities; an inability to protect the Corporation's intellectual property; the impact of recent tax legislation; force majeure events outside the Corporation's control; and other risks described in the Corporation's annual and quarterly reports filed with the Securities and Exchange Commission on Forms 10-K and 10-Q, as well as others that the Corporation may consider not material or does not anticipate at this time. The risks and uncertainties described in this report, as well as those described within Item 1A of the Corporation's Annual Report on Form 10-K for the year ended December 30, 2017, are not exclusive and further information concerning the Corporation's financial results or condition may emerge from time to time.

The Corporation cautions readers not to place undue reliance on any forward-looking statement, which speaks only as of the date made, and to recognize forward-looking statements are predictions of future results, which may not occur as anticipated. The Corporation assumes no obligation to update, amend, or clarify forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by applicable law.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

As of March 31, 2018, there were no material changes to the financial market risks affecting the quantitative and qualitative disclosures presented in Item 7A of the Corporation's Annual Report on Form 10-K for the year ended December 30, 2017.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures are designed to ensure information required to be disclosed by the Corporation in the reports it files or submits under the Securities Exchange Act of 1934 (the "Exchange Act") is recorded, processed, summarized, and reported within the time periods specified in the Securities and Exchange Commission's rules and forms.  Disclosure controls and procedures are also designed to ensure information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Under the supervision and with the participation of the Chief Executive Officer and Chief Financial Officer of the Corporation, the Corporation's management carried out an evaluation of the Corporation's disclosure controls and procedures pursuant to Exchange Act Rules 13a – 15(e) and 15d – 15(e).  As of March 31, 2018, based on this evaluation, the Chief Executive Officer and Chief Financial Officer have concluded these disclosure controls and procedures are effective.

27

Changes in Internal Controls

The Corporation is engaged in a multi-year, broad-based program, which is referred to as business systems transformation ("BST"). The BST initiative includes the introduction of a new software system along with related process changes intended to simplify and streamline the Corporation's business processes. In the first quarter of fiscal 2018, the Corporation implemented BST in the majority of the domestic office furniture operations. The implementation resulted in business and operational changes in areas including order management, production scheduling, pricing, shipping, purchasing, and general accounting. These changes required some modifications to the Corporation's internal control over financial reporting. Except for the BST implementation, there have been no changes in the Corporation's internal control over financial reporting during the fiscal quarter covered by this quarterly report on Form 10-Q that have materially affected, or are reasonably likely to materially affect, its internal control over financial reporting.

28

PART II.  OTHER INFORMATION

Item 1. Legal Proceedings

For information regarding legal proceedings, see "Note 16. Guarantees, Commitments, and Contingencies" in the Notes to Condensed Consolidated Financial Statements, which information is incorporated herein by reference.

Item 1A. Risk Factors

There have been no material changes from the risk factors disclosed in the "Risk Factors" section of the Corporation's Annual Report on Form 10-K for the year ended December 30, 2017.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Issuer Purchases of Equity Securities:

The following is a summary of share repurchase activity during the quarter:

Period	Total Number of Shares (or Units) Purchased (1)	Average Price Paid per Share (or Unit)		Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet be Purchased Under the Plans or Programs
12/31/17 – 01/27/18	126,000	$	39.02	126,000	$	73,092,067
01/28/18 – 02/24/18	26,822	$	39.03	26,822	$	72,045,172
02/25/18 – 03/31/18	—	$	—	—	$	72,045,172
Total	152,822			152,822

(1) No shares were purchased outside of a publicly announced plan or program.

The Corporation repurchases shares under previously announced plans authorized by the Board as follows:

• Corporation's share purchase program ("Program") announced November 9, 2007, providing share repurchase authorization of $200,000,000 with no specific expiration date, with an increase announced November 7, 2014, providing additional share repurchase authorization of $200,000,000 with no specific expiration date.

• No repurchase plans expired or were terminated during the first quarter of fiscal 2018, nor do any plans exist under which the Corporation does not intend to make further purchases. The Program does not obligate the Corporation to purchase any shares and the authorization for the Program may be terminated, increased, or decreased by the Board at any time.

29

Item 6. Exhibits

(3.1)	Amended and Restated By-laws of the Corporation, as amended (incorporated by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K filed April 20, 2018)
(10.1)	Amended Form of HNI Corporation 2007 Stock-Based Compensation Plan Stock Option Award Agreement (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed March 22, 2018)*
(10.2)	Amended Form of HNI Corporation 2017 Stock-Based Compensation Plan Stock Option Award Agreement (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K filed March 22, 2018)*
(10.3)	Third Amended and Restated Credit Agreement, including all schedules and exhibits, dated as of April 20, 2018, by and among HNI Corporation, as Borrower, certain domestic subsidiaries of HNI Corporation, as Guarantors, certain lenders party thereto and Wells Fargo Bank, National Association, as Administrative Agent (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed April 24, 2018)
(31.1)	Certification of the CEO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002+
(31.2)	Certification of the CFO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002+
(32.1)	Certification of CEO and CFO Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002+
101	The following materials from HNI Corporation's Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2018 are formatted in XBRL (eXtensible Business Reporting Language) and filed electronically herewith: (i) Condensed Consolidated Statements of Comprehensive Income; (ii) Condensed Consolidated Balance Sheets; (iii) Consolidated Statements of Equity; (iv) Condensed Consolidated Statements of Cash Flows; and (v) Notes to Condensed Consolidated Financial Statements

*    Indicates management contract or compensatory plan.

⁺    Filed or furnished herewith.

30

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	HNI Corporation
Date: May 1, 2018	By:	/s/ Marshall H. Bridges
		Marshall H. Bridges
		Senior Vice President and Chief Financial Officer

31

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

Sarbanes-Oxley Act Section 302

I, Stan A. Askren, certify that:

1.  I have reviewed this quarterly report on Form 10-Q of HNI Corporation;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, and cash flows of the registrant as of, and for, the periods presented in this report;

4.  The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a – 15(e) and 15d – 15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a – 15(f) and 15d – 15(f)) for the registrant and have:

    a.  designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

    b.  designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;    

    c.  evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and 

    d.  disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.   The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent function):

    a.  all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

    b.  any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 1, 2018	By:	/s/ Stan A. Askren
		Name:  Stan A. Askren
		Title:    Chairman and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

Sarbanes-Oxley Act Section 302

I, Marshall H. Bridges, certify that:

1.  I have reviewed this quarterly report on Form 10-Q of HNI Corporation;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, and cash flows of the registrant as of, and for, the periods presented in this report;

4.  The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a – 15(e) and 15d – 15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a – 15(f) and 15d – 15(f)) for the registrant and have:

    a.  designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

    b.  designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;    

    c.  evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and 

    d.  disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.   The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent function):

    a.  all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

    b.  any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 1, 2018	By:	/s/ Marshall H. Bridges
		Name:  Marshall H. Bridges
		Title:    Senior Vice President and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of HNI Corporation (the "Corporation") for the quarterly period ended March 31, 2018, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), Stan A. Askren, as Chairman and Chief Executive Officer of the Corporation, and Marshall H. Bridges, as Senior Vice President and Chief Financial Officer of the Corporation, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

1.  The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.  The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Corporation as of the dates and for the periods expressed in the Report.

Date: May 1, 2018	By:	/s/ Stan A. Askren
		Name:  Stan A. Askren
		Title:    Chairman and Chief Executive Officer

Date: May 1, 2018	By:	/s/ Marshall H. Bridges
		Name:   Marshall H. Bridges
		Title:     Senior Vice President and Chief Financial Officer

XML

DOCUMENT AND ENTITY INFORMATION	3 Months Ended
	Mar. 31, 2018 shares
Document and Entity Information [Abstract]
Entity Registrant Name	HNI CORP
Entity Central Index Key	0000048287
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-29
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	43,529,550.00

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Income Statement [Abstract]
Net sales	$ 505,069	$ 477,667
Cost of sales	328,150	303,944
Gross profit	176,919	173,723
Selling and administrative expenses	171,895	163,666
Restructuring charges	1,338	2,123
Operating income	3,686	7,934
Interest income	113	71
Interest expense	2,337	1,046
Income before income taxes	1,462	6,959
Income tax expense (benefit)	(999)	2,178
Net income	2,461	4,781
Less: Net income (loss) attributable to non-controlling interest	(49)	(56)
Net income attributable to HNI Corporation	$ 2,510	$ 4,837
Average number of common shares outstanding – basic (in shares)	43,359,971	44,050,040
Net income attributable to HNI Corporation per common share – basic (in dollars per share)	$ 0.06	$ 0.11
Average number of common shares outstanding – diluted (in shares)	44,134,142	45,452,664
Net income attributable to HNI Corporation per common share – diluted (in dollars per share)	$ 0.06	$ 0.11
Foreign currency translation adjustments	$ 1	$ 345
Change in unrealized gains (losses) on marketable securities, net of tax	(79)	18
Change in derivative financial instruments, net of tax	1,027	264
Other comprehensive income (loss), net of tax	949	627
Comprehensive income	3,410	5,408
Less: Comprehensive income (loss) attributable to non-controlling interest	(49)	(56)
Comprehensive income attributable to HNI Corporation	$ 3,459	$ 5,464

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Current Assets:
Cash and cash equivalents	$ 28,813	$ 23,348
Short-term investments	1,831	2,015
Receivables	223,043	258,551
Inventories	158,688	155,683
Prepaid expenses and other current assets	47,706	49,283
Total Current Assets	460,081	488,880
Property, Plant, and Equipment:
Land and land improvements	28,437	28,593
Buildings	285,493	306,137
Machinery and equipment	550,565	556,571
Construction in progress	40,973	39,788
Property plant and equipment, at cost	905,468	931,089
Less accumulated depreciation	530,528	540,768
Net Property, Plant, and Equipment	374,940	390,321
Goodwill and Other Intangible Assets	486,711	490,892
Deferred Income Taxes	193	193
Other Assets	23,214	21,264
Total Assets	1,345,139	1,391,550
Current Liabilities:
Accounts payable and accrued expenses	347,029	450,128
Current maturities of long-term debt	78,964	36,648
Current maturities of other long-term obligations	1,862	2,927
Total Current Liabilities	427,855	489,703
Long-Term Debt	250,000	240,000
Other Long-Term Liabilities	77,112	70,409
Deferred Income Taxes	75,931	76,861
Capital Stock:
Preferred stock - $1 par value, authorized 2,000 shares, no shares outstanding	0	0
Common stock - $1 par value, authorized 200,000 shares, outstanding: March 31, 2018 - 43,530 shares; December 31, 2017 - 43,354 shares	43,530	43,354
Additional paid-in capital	20,124	7,029
Retained earnings	452,748	467,296
Accumulated other comprehensive income (loss)	(2,662)	(3,611)
Total HNI Corporation shareholders' equity	513,740	514,068
Non-controlling interest	501	509
Total Equity	514,241	514,577
Total Liabilities and Equity	$ 1,345,139	$ 1,391,550

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 30, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares outstanding (in shares)	43,530,000	43,354,000

XML

CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest
Beginning balance at Dec. 31, 2016	$ 501,009	$ 44,079	$ 0	$ 461,524	$ (5,000)	$ 406
Comprehensive income:
Net income (loss)	4,781			4,837		(56)
Other comprehensive income (loss), net of tax	627				627
Change in ownership of non-controlling interest	0			0		0
Cash dividends	(12,132)			(12,132)
Common shares – treasury:
Shares purchased	(11,675)	(234)	(6,602)	(4,839)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	18,850	395	18,455
Ending balance at Apr. 01, 2017	501,460	44,240	11,853	449,390	(4,373)	350
Beginning balance at Dec. 30, 2017	514,577	43,354	7,029	467,296	(3,611)	509
Comprehensive income:
Net income (loss)	2,461			2,510		(49)
Other comprehensive income (loss), net of tax	949				949
Change in ownership of non-controlling interest	0			(41)		41
Cash dividends	(12,381)			(12,381)
Common shares – treasury:
Shares purchased	(5,964)	(153)	(1,175)	(4,636)
Shares issued under Members' Stock Purchase Plan and stock awards, net of tax	14,599	329	14,270
Ending balance at Mar. 31, 2018	$ 514,241	$ 43,530	$ 20,124	$ 452,748	$ (2,662)	$ 501

XML

CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 0.285	$ 0.275

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Net Cash Flows From (To) Operating Activities:
Net income	$ 2,461	$ 4,781
Non-cash items included in net income:
Depreciation and amortization	18,445	18,839
Other post-retirement and post-employment benefits	447	398
Stock-based compensation	3,712	4,671
Deferred income taxes	(1,196)	646
(Gain) loss on sale and retirement of long-lived assets, net	808	784
Amortization of deferred gain on sale leaseback transaction	(43)	0
Other – net	(699)	(1,890)
Net increase (decrease) in operating assets and liabilities, net of divestitures	(55,135)	(57,899)
Increase (decrease) in other liabilities	447	(2,339)
Net cash flows from (to) operating activities	(30,753)	(32,009)
Net Cash Flows From (To) Investing Activities:
Capital expenditures	(12,383)	(25,072)
Proceeds from sale of property, plant, and equipment	18,353	76
Capitalized software	(3,948)	(7,704)
Purchase of investments	(605)	(1,539)
Sales or maturities of investments	650	1,611
Other – net	794	1,510
Net cash flows from (to) investing activities	2,861	(31,118)
Net Cash Flows From (To) Financing Activities:
Payments of long-term debt and other financing	(104,573)	(68,579)
Proceeds from long-term debt	155,047	146,331
Dividends paid	(12,381)	(12,132)
Purchase of HNI Corporation common stock	(7,345)	(11,266)
Proceeds from sales of HNI Corporation common stock	2,764	1,798
Withholding related to net share settlements of equity based awards	(155)	(209)
Net cash flows from (to) financing activities	33,357	55,943
Net increase (decrease) in cash and cash equivalents	5,465	(7,184)
Cash and cash equivalents at beginning of period	23,348	36,312
Cash and cash equivalents at end of period	$ 28,813	$ 29,128

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Basis of Presentation

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited, condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X.  Accordingly, they do not include all of the information and notes required by generally accepted accounting principles for complete financial statements.  The December 30, 2017 consolidated balance sheet included in this Form 10-Q was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles.  In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement have been included. Operating results for the three-month period ended March 31, 2018 are not necessarily indicative of the results expected for the fiscal year ending December 29, 2018.  For further information, refer to the consolidated financial statements and accompanying notes included in HNI Corporation's (the "Corporation") Annual Report on Form 10-K for the fiscal year ended December 30, 2017.

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Revenue from Contracts with Customers

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

Revenue from Contracts with Customers

The Corporation implemented ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), 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.

Disaggregation of Revenue

Revenue from contracts with customers disaggregated by sales channel and by segment is as follows (in thousands):

		Three Months Ended
	Segment	March 31, 2018		April 1, 2017
Supplies-driven channel	Office Furniture	$	191,228	$	178,964
Contract channel	Office Furniture	189,687		181,017
Hearth	Hearth Products	124,154		117,686
Net sales		$	505,069	$	477,667

The majority of revenue presented as "Net sales" in the Condensed 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 the product is sold under. See “Note 17. Reportable Segment Information” in the Notes to Condensed 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 contract. 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):

	March 31, 2018		December 30, 2017
Trade receivables (1)	$	225,283	$	260,455
Contract assets (current) (2)	$	483	$	300
Contract assets (long-term) (3)	$	4,147	$	2,350
Contract liabilities (4)	$	33,103	$	54,295

The index below indicates the line item in the Condensed 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 three months ended March 31, 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	(120		)	—
Contract liabilities recognized and recorded to contra revenue as a result of performance obligations satisfied				(28,153		)
Contract liabilities paid	—			45,326
Cash received in advance and not recognized as revenue	—			(20,806		)
Reclassification of cash received in advance to revenue as a result of performance obligations satisfied	—			24,179
Impact of business combination	—			646
Net change	$	1,980		$	21,192

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. See “Note 7. Product Warranties” in the Notes to Condensed Consolidated Financial Statements for additional information on warranty obligations.

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.

Accounting Policies and Practical Expedients Elected

The Corporation elected to use the modified-retrospective method of adopting the new standard on revenue recognition. It 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 as fulfillment activities when the activities are performed after a customer obtains control of the good. 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, they are considered fulfillment activities rather than a promised good or service.

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 that are imposed on and concurrent with a specific revenue-producing transaction and collected by the entity from a customer, 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.

These accounting policies and practical expedients have been applied consistently to all revenue transactions.

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Restructuring

3 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Restructuring

Restructuring

Restructuring costs recorded in the Condensed Consolidated Statements of Comprehensive Income are as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Cost of sales - accelerated depreciation	$	—	$	4,199
Restructuring charges	1,338		2,123
Total restructuring costs	$	1,338	$	6,322

Restructuring costs in 2018 were primarily incurred as part of the previously announced closure of the office furniture manufacturing facility in Orleans, Indiana. Restructuring costs in 2017, which include accelerated depreciation recorded in "Cost of sales" in the Condensed 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.

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 Condensed Consolidated Balance Sheets. The following is a summary of changes in restructuring accruals during the three months ended (in thousands):

	Severance Costs			Facility Exit Costs & Other			Total
Restructuring allowance as of December 30, 2017	$	1,343		$	516		$	1,859
Restructuring charges	74			1,264			1,338
Cash payments	(1,333		)	(1,724		)	(3,057		)
Restructuring allowance as of March 31, 2018	$	84		$	56		$	140

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 of property, plant, and equipment" in the Condensed Consolidated Statements of Cash Flows. In accordance with ASC 840, Leases, the $5.1 million gain on the sale of the facility is deferred and will be amortized as a reduction to rent expense evenly over the term of the lease. 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 $4.6 million and included within "Other Long-Term Liabilities", both in the Condensed Consolidated Balance Sheets. The transaction did not have a material impact to the Condensed Consolidated Statements of Comprehensive Income.

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Acquisitions and Divestitures

3 Months Ended

Mar. 31, 2018

Business Combinations [Abstract]

Acquisitions and Divestitures

Acquisitions and Divestitures

Office Furniture Dealerships

As part of the Corporation's ongoing business strategy, it continues to acquire and divest small office furniture dealerships, for which the impact is not material to the Corporation's financial statements.

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Inventories

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories

The Corporation values its inventory at the lower of cost or net realizable value with approximately 86 percent valued by the last-in, first-out ("LIFO") costing method.

(In thousands)	March 31, 2018			December 30, 2017
Finished products	$	98,844		$	101,715
Materials and work in process	87,226			81,202
LIFO allowance	(27,382		)	(27,234		)
Total inventories	$	158,688		$	155,683

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Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 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 Condensed Consolidated Balance Sheets consisted of the following (in thousands):

	March 31, 2018		December 30, 2017
Goodwill	$	279,480	$	279,505
Definite-lived intangible assets	178,078		182,186
Indefinite-lived intangible assets	29,153		29,201
Total goodwill and other intangible assets	$	486,711	$	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 30, 2017
Goodwill	$	137,845		$	183,199		$	321,044
Accumulated impairment losses	(41,396		)	(143		)	(41,539		)
Net goodwill balance as of December 30, 2017	96,449			183,056			279,505
Foreign currency translation adjustment	(25		)	—			(25		)
Balance as of March 31, 2018
Goodwill	137,820			183,199			321,019
Accumulated impairment losses	(41,396		)	(143		)	(41,539		)
Net goodwill balance as of March 31, 2018	$	96,424		$	183,056		$	279,480

Definite-lived intangible assets

The table below summarizes amortizable definite-lived intangible assets, which are reflected in "Goodwill and Other Intangible Assets" in the Condensed Consolidated Balance Sheets (in thousands):

	March 31, 2018						December 30, 2017
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Patents	$	40	$	28	$	12	$	40	$	26	$	14
Software	168,612		38,690		129,922		167,105		34,792		132,313
Trademarks and trade names	7,564		2,226		5,338		7,564		2,061		5,503
Customer lists and other	105,871		63,065		42,806		106,090		61,734		44,356
Net definite-lived intangible assets	$	282,087	$	104,009	$	178,078	$	280,799	$	98,613	$	182,186

Amortization expense is reflected in "Selling and administrative expenses" in the Condensed Consolidated Statements of Comprehensive Income and was as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Capitalized software	$	4,167	$	1,340
Other definite-lived intangibles	$	1,688	$	1,774

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):

	2018		2019		2020		2021		2022
Amortization expense	$	23.1	$	22.1	$	21.2	$	20.2	$	18.3

The occurrence of events such as acquisitions, dispositions, or impairments in the future may result in changes to amounts.

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 Condensed Consolidated Balance Sheets (in thousands):

	March 31, 2018		December 30, 2017
Trademarks and trade names	$	29,153	$	29,201

Impairment Analysis

The Corporation evaluates its goodwill and indefinite-lived intangible assets for impairment on an annual basis during the fourth quarter or whenever indicators of impairment exist.

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Product Warranties

3 Months Ended

Mar. 31, 2018

Product Warranties Disclosures [Abstract]

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.  Activity associated with warranty obligations was as follows (in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Balance at beginning of period	$	15,388		$	15,250
Accruals for warranties issued during period	5,992			5,540
Adjustments related to pre-existing warranties	68			(116		)
Settlements made during the period	(6,010		)	(5,548		)
Balance at end of period	$	15,438		$	15,126

The current and long-term portions of the allowance for estimated settlements are included within "Accounts payable and accrued expenses" and "Other Long-Term Liabilities", respectively, in the Condensed Consolidated Balance Sheets. The following table summarizes when these estimated settlements are expected to be paid (in thousands):

	March 31, 2018		December 30, 2017
Current - in the next twelve months	$	9,512	$	9,524
Long-term - beyond one year	5,926		5,864
Total estimated settlements	$	15,438	$	15,388

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Long-Term Debt Long-Term Debt

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Long-Term Debt

 Long-Term Debt

Long-term debt is as follows (in thousands):

	March 31, 2018		December 30, 2017
Revolving credit facility with interest at a variable rate (March 31, 2018 - 3.0%; December 30, 2017 - 2.7%)	$	328,000	$	267,500
Other amounts	964		9,148
Total debt	328,964		276,648
Less: Current maturities of long-term debt	78,964		36,648
Long-term debt	$	250,000	$	240,000

As of March 31, 2018, the Corporation’s revolving credit facility borrowings were under the credit agreement entered into January 6, 2016 with a scheduled maturity of January 6, 2021. 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 Condensed Consolidated Balance Sheets. The long-term portion of $0.6 million is reflected in "Other Assets" in the Condensed Consolidated Balance Sheets.

As of March 31, 2018, there was $328 million outstanding under the $400 million revolving credit facility of which $250 million was classified as long-term since the Corporation does not expect to repay the borrowings within a year. Because the Corporation expects, but is not required, to repay the remaining $78 million in the next twelve months, it was classified as current.

The revolving credit facility under the credit agreement is the primary source of committed funding from which the Corporation finances its planned capital expenditures and strategic initiatives, such as acquisitions, repurchases of common stock, and certain working capital needs.

The credit agreement contains a number of covenants. Non-compliance with covenants in the credit agreement could prevent the Corporation from being able to access further borrowings under the revolving credit facility, require immediate repayment of all amounts outstanding with respect to the revolving credit facility, and/or increase the cost of borrowing.

Certain 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, nonrecurring charges, and all non-cash items increasing net income.  As of March 31, 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.

Subsequent to quarter end, on April 20, 2018, the Corporation entered into a Third Amended and Restated Credit Agreement. This amendment to the credit agreement extends the maturity of the facility to April 20, 2023, with the option for two additional one-year extensions, and increases the maximum borrowing capacity to$450 million. All other terms and conditions of the agreement were substantially unchanged.

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Income Taxes

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Corporation's tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items. The following table summarizes the Corporation's income tax provision (dollars in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Income before income taxes	$	1,462		$	6,959
Income tax expense (benefit)	$	(999	)	$	2,178
Effective tax rate	(66.1		%)	31.0		%

The Corporation's effective tax rate was lower in the three months ended March 31, 2018 principally due to the release of a valuation allowance for certain foreign jurisdictions and the enactment of the Tax Cuts and Jobs Act in 2017 (the "Act").

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% to 21% 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. 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 is electing 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 are not 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. Additionally, under the Act and for purposes of Internal Revenue Code Section 162(m) Excessive Executive Compensation Limit, the Corporation is electing to allocate deductible compensation to cash compensation first, then to share-based compensation.

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Fair Value Measurements of Financial Instruments

3 Months Ended

Mar. 31, 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 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 March 31, 2018
Cash and cash equivalents (including money market funds) (1)	$	28,813	$	28,813	$	—	$	—
Government securities (2)	$	6,582	$	—	$	6,582	$	—
Corporate bonds (2)	$	5,757	$	—	$	5,757	$	—
Derivative financial instruments (3)	$	4,715	$	—	$	4,715	$	—
Variable-rate debt obligations (4)	$	328,000	$	—	$	328,000	$	—
Deferred stock-based compensation (5)	$	8,649	$	—	$	8,649	$	—
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 Condensed 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"

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Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity

Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity

The following tables summarize the components of accumulated other comprehensive income (loss) and the changes in accumulated other comprehensive income (loss), net of tax, as applicable for the three months ended (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 December 30, 2017	$	31	$	(132	)	$	(5,630	)	$	2,120		$	(3,611	)
Other comprehensive income (loss) before reclassifications	1		(100		)	—			1,476			1,377
Tax (expense) or benefit	—		21			—			(362		)	(341		)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	—		—			—			(87		)	(87		)
Balance as of March 31, 2018	$	32	$	(211	)	$	(5,630	)	$	3,147		$	(2,662	)

Amounts in parentheses indicate reductions to equity.

	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 December 31, 2016	$	(1,188	)	$	(105	)	$	(5,167	)	$	1,460		$	(5,000	)
Other comprehensive income (loss) before reclassifications	345			27			—			226			598
Tax (expense) or benefit	—			(9		)	—			(83		)	(92		)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	—			—			—			121			121
Balance as of April 1, 2017	$	(843	)	$	(87	)	$	(5,167	)	$	1,724		$	(4,373	)

Amounts in parentheses indicate reductions to equity.

Interest Rate Swap

In March 2016, the Corporation entered into 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 notional value expiring January 2021. As of March 31, 2018, the fair value of the Corporation's interest rate swap was an asset of $4.7 million, which is reflected in "Other Assets" in the Condensed Consolidated Balance Sheets. The unrecognized change in value of the interest rate swap is reported net of tax as $3.1 million in "Accumulated other comprehensive income (loss)" in the Condensed Consolidated Balance Sheets.

The following table details the reclassifications from accumulated other comprehensive income (loss) (in thousands):

		Three Months Ended
Details about Accumulated Other Comprehensive Income (Loss) Components	Affected Line Item in the Statement Where Net Income is Presented	March 31, 2018			April 1, 2017
Derivative financial instruments
Interest rate swap	Interest (expense) or income	$	115		$	(192	)
	Tax (expense) or benefit	(28		)	71
	Net of tax	$	87		$	(121	)

Amounts in parentheses indicate reductions to profit.

Stock Repurchase

The following table summarizes shares repurchased and settled by the Corporation (in thousands, except share data):

	Three Months Ended
	March 31, 2018			April 1, 2017
Shares repurchased	152,822			234,375
Cash purchase price	$	(5,964	)	$	(11,675	)
Purchases unsettled as of quarter end	—			409
Prior year purchases settled in current year	(1,381		)	—
Shares repurchased per cash flow	$	(7,345	)	$	(11,266	)

As of March 31, 2018, approximately $72.0 million of the Corporation's Board of Directors' ("Board") current repurchase authorization remained unspent.

Dividend

The Corporation declared and paid cash dividends per share as follows (in dollars):

	Three Months Ended
	March 31, 2018		April 1, 2017
Common shares	$	0.285	$	0.275

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Earnings Per Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

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):

	Three Months Ended
	March 31, 2018		April 1, 2017
Numerator:
Numerator for both basic and diluted EPS attributable to HNI Corporation net income	$	2,510	$	4,837
Denominators:
Denominator for basic EPS weighted-average common shares outstanding	43,360		44,050
Potentially dilutive shares from stock-based compensation plans	774		1,403
Denominator for diluted EPS	44,134		45,453
Earnings per share – basic	$	0.06	$	0.11
Earnings per share – diluted	$	0.06	$	0.11

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.

	Three Months Ended
	March 31, 2018	April 1, 2017
Common stock equivalents excluded because their inclusion would be anti-dilutive	1,226	616

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Stock-Based Compensation

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

Stock-Based Compensation

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 approved stock-based compensation plans and shares issued under the approved member stock purchase plans. The following table summarizesexpense associated with these plans (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Compensation cost	$	3,712	$	4,671

The options and units granted by the Corporation had fair values as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Stock options	$	6,611	$	7,206

The following table summarizes unrecognized compensation expense and the weighted-average remaining service period for non-vested stock options and restricted stock units as of March 31, 2018:

	Unrecognized Compensation Expense (in thousands)		Weighted-Average Remaining Service Period (years)
Non-vested stock options	$	5,543	1.3
Non-vested restricted stock units	$	238	0.7

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Post-Retirement Health Care

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Post-Retirement Health Care

Post-Retirement Health Care

The following table sets forth the components of net periodic benefit costs included in the Condensed Consolidated Statements of Comprehensive Income (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Service cost	$	213	$	185
Interest cost	197		206
Amortization of net (gain) loss	37		7
Net periodic post-retirement benefit cost	$	447	$	398

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Recently Adopted Accounting Standards

3 Months Ended

Mar. 31, 2018

Accounting Changes and Error Corrections [Abstract]

Recently Adopted Accounting Standards

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 2. Revenue from Contracts with Customers" in the Notes to Condensed 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 condensed 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 condensed 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 postretirement 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 condensed consolidated financial statements or related disclosures.

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Guarantees, Commitments and Contingencies

3 Months Ended

Mar. 31, 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 $18 million to back certain insurance policies and payment obligations.  The Corporation utilizes trade letters of credit and banker's acceptances in the amount of $4 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, for which the Corporation believes it has strong legal and factual defenses.  The Corporation intends to vigorously prosecute the Iowa action and defend the Texas action.

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.

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Reportable Segment Information

3 Months Ended

Mar. 31, 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 metal and wood 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 corporate expenses include the net costs of the Corporation's corporate operations, interest income, and interest expense.  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, 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 condensed consolidated financial statements was as follows (in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Net Sales:
Office furniture	$	380,915		$	359,981
Hearth products	124,154			117,686
Total	$	505,069		$	477,667
Income Before Income Taxes:
Office furniture	$	(387	)	$	6,444
Hearth products	17,114			11,811
General corporate	(15,265		)	(11,296		)
Total	$	1,462		$	6,959
Depreciation and Amortization Expense:
Office furniture	$	10,986		$	12,885
Hearth products	1,962			3,488
General corporate	5,497			2,466
Total	$	18,445		$	18,839
Capital Expenditures (including capitalized software):
Office furniture	$	11,577		$	21,020
Hearth products	2,938			2,078
General corporate	1,816			9,678
Total	$	16,331		$	32,776
	As of March 31, 2018			As of December 30, 2017
Identifiable Assets:
Office furniture	$	787,106		$	821,767
Hearth products	344,653			347,189
General corporate	213,380			222,594
Total	$	1,345,139		$	1,391,550

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Subsequent Events

3 Months Ended

Mar. 31, 2018

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

Subsequent to quarter end, on April 20, 2018, the Corporation entered into a Third Amended and Restated Credit Agreement. This amendment to the credit agreement extends the maturity of the facility to April 20, 2023, with the option for two additional one-year extensions, and increases the maximum borrowing capacity to $450 million. All other terms and conditions of the agreement were substantially unchanged.

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Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Inventories

The Corporation values its inventory at the lower of cost or net realizable value with approximately 86 percent valued by the last-in, first-out ("LIFO") costing method.

Goodwill and Other Intangible Assets

The Corporation evaluates its goodwill and indefinite-lived intangible assets for impairment on an annual basis during the fourth quarter or whenever indicators of impairment exist.

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.  

Fair Value Measurements

For recognition purposes, on a recurring basis, the Corporation is required to measure at fair value its marketable securities, derivative financial instruments, variable-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.

Stock-Based Compensation

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 approved stock-based compensation plans and shares issued under the approved member stock purchase plans.

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 2. Revenue from Contracts with Customers" in the Notes to Condensed 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 condensed 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 condensed 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 postretirement 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 condensed consolidated financial statements or related disclosures.

Business 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 metal and wood 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 corporate expenses include the net costs of the Corporation's corporate operations, interest income, and interest expense.  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, 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.

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Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 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):

		Three Months Ended
	Segment	March 31, 2018		April 1, 2017
Supplies-driven channel	Office Furniture	$	191,228	$	178,964
Contract channel	Office Furniture	189,687		181,017
Hearth	Hearth Products	124,154		117,686
Net sales		$	505,069	$	477,667

Contract with Customer, Asset and Liability

Contract assets and liabilities were as follows (in thousands):

	March 31, 2018		December 30, 2017
Trade receivables (1)	$	225,283	$	260,455
Contract assets (current) (2)	$	483	$	300
Contract assets (long-term) (3)	$	4,147	$	2,350
Contract liabilities (4)	$	33,103	$	54,295

The index below indicates the line item in the Condensed 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 three months ended March 31, 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	(120		)	—
Contract liabilities recognized and recorded to contra revenue as a result of performance obligations satisfied				(28,153		)
Contract liabilities paid	—			45,326
Cash received in advance and not recognized as revenue	—			(20,806		)
Reclassification of cash received in advance to revenue as a result of performance obligations satisfied	—			24,179
Impact of business combination	—			646
Net change	$	1,980		$	21,192

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Restructuring (Tables)

3 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Summary of Restructuring Costs

Restructuring costs recorded in the Condensed Consolidated Statements of Comprehensive Income are as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Cost of sales - accelerated depreciation	$	—	$	4,199
Restructuring charges	1,338		2,123
Total restructuring costs	$	1,338	$	6,322

The following is a summary of changes in restructuring accruals during the three months ended (in thousands):

	Severance Costs			Facility Exit Costs & Other			Total
Restructuring allowance as of December 30, 2017	$	1,343		$	516		$	1,859
Restructuring charges	74			1,264			1,338
Cash payments	(1,333		)	(1,724		)	(3,057		)
Restructuring allowance as of March 31, 2018	$	84		$	56		$	140

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Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Schedule of Inventories

The Corporation values its inventory at the lower of cost or net realizable value with approximately 86 percent valued by the last-in, first-out ("LIFO") costing method.

(In thousands)	March 31, 2018			December 30, 2017
Finished products	$	98,844		$	101,715
Materials and work in process	87,226			81,202
LIFO allowance	(27,382		)	(27,234		)
Total inventories	$	158,688		$	155,683

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Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

Goodwill and other intangible assets included in the Condensed Consolidated Balance Sheets consisted of the following (in thousands):

	March 31, 2018		December 30, 2017
Goodwill	$	279,480	$	279,505
Definite-lived intangible assets	178,078		182,186
Indefinite-lived intangible assets	29,153		29,201
Total goodwill and other intangible assets	$	486,711	$	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 30, 2017
Goodwill	$	137,845		$	183,199		$	321,044
Accumulated impairment losses	(41,396		)	(143		)	(41,539		)
Net goodwill balance as of December 30, 2017	96,449			183,056			279,505
Foreign currency translation adjustment	(25		)	—			(25		)
Balance as of March 31, 2018
Goodwill	137,820			183,199			321,019
Accumulated impairment losses	(41,396		)	(143		)	(41,539		)
Net goodwill balance as of March 31, 2018	$	96,424		$	183,056		$	279,480

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 Condensed Consolidated Balance Sheets (in thousands):

	March 31, 2018						December 30, 2017
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Patents	$	40	$	28	$	12	$	40	$	26	$	14
Software	168,612		38,690		129,922		167,105		34,792		132,313
Trademarks and trade names	7,564		2,226		5,338		7,564		2,061		5,503
Customer lists and other	105,871		63,065		42,806		106,090		61,734		44,356
Net definite-lived intangible assets	$	282,087	$	104,009	$	178,078	$	280,799	$	98,613	$	182,186

Finite-lived Intangible Assets Amortization Expense

Amortization expense is reflected in "Selling and administrative expenses" in the Condensed Consolidated Statements of Comprehensive Income and was as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Capitalized software	$	4,167	$	1,340
Other definite-lived intangibles	$	1,688	$	1,774

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):

	2018		2019		2020		2021		2022
Amortization expense	$	23.1	$	22.1	$	21.2	$	20.2	$	18.3

Schedule of Indefinite Lived Intangible Assets and Goodwill

These indefinite-lived intangible assets are reflected in "Goodwill and Other Intangible Assets" in the Condensed Consolidated Balance Sheets (in thousands):

	March 31, 2018		December 30, 2017
Trademarks and trade names	$	29,153	$	29,201

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Product Warranties (Tables)

3 Months Ended

Mar. 31, 2018

Product Warranties Disclosures [Abstract]

Activity Associated with Warranty Obligations

The following table summarizes when these estimated settlements are expected to be paid (in thousands):

	March 31, 2018		December 30, 2017
Current - in the next twelve months	$	9,512	$	9,524
Long-term - beyond one year	5,926		5,864
Total estimated settlements	$	15,438	$	15,388

Activity associated with warranty obligations was as follows (in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Balance at beginning of period	$	15,388		$	15,250
Accruals for warranties issued during period	5,992			5,540
Adjustments related to pre-existing warranties	68			(116		)
Settlements made during the period	(6,010		)	(5,548		)
Balance at end of period	$	15,438		$	15,126

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Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Schedule of Debt

Long-term debt is as follows (in thousands):

	March 31, 2018		December 30, 2017
Revolving credit facility with interest at a variable rate (March 31, 2018 - 3.0%; December 30, 2017 - 2.7%)	$	328,000	$	267,500
Other amounts	964		9,148
Total debt	328,964		276,648
Less: Current maturities of long-term debt	78,964		36,648
Long-term debt	$	250,000	$	240,000

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Income Taxes Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision

The following table summarizes the Corporation's income tax provision (dollars in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Income before income taxes	$	1,462		$	6,959
Income tax expense (benefit)	$	(999	)	$	2,178
Effective tax rate	(66.1		%)	31.0		%

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Assets Measured at Fair Value

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 March 31, 2018
Cash and cash equivalents (including money market funds) (1)	$	28,813	$	28,813	$	—	$	—
Government securities (2)	$	6,582	$	—	$	6,582	$	—
Corporate bonds (2)	$	5,757	$	—	$	5,757	$	—
Derivative financial instruments (3)	$	4,715	$	—	$	4,715	$	—
Variable-rate debt obligations (4)	$	328,000	$	—	$	328,000	$	—
Deferred stock-based compensation (5)	$	8,649	$	—	$	8,649	$	—
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 Condensed 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"

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Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income and Changes in Accumulated Other Comprehensive Income, Net of Tax

The following tables summarize the components of accumulated other comprehensive income (loss) and the changes in accumulated other comprehensive income (loss), net of tax, as applicable for the three months ended (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 December 30, 2017	$	31	$	(132	)	$	(5,630	)	$	2,120		$	(3,611	)
Other comprehensive income (loss) before reclassifications	1		(100		)	—			1,476			1,377
Tax (expense) or benefit	—		21			—			(362		)	(341		)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	—		—			—			(87		)	(87		)
Balance as of March 31, 2018	$	32	$	(211	)	$	(5,630	)	$	3,147		$	(2,662	)

Amounts in parentheses indicate reductions to equity.

	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 December 31, 2016	$	(1,188	)	$	(105	)	$	(5,167	)	$	1,460		$	(5,000	)
Other comprehensive income (loss) before reclassifications	345			27			—			226			598
Tax (expense) or benefit	—			(9		)	—			(83		)	(92		)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	—			—			—			121			121
Balance as of April 1, 2017	$	(843	)	$	(87	)	$	(5,167	)	$	1,724		$	(4,373	)

Amounts in parentheses indicate reductions to equity.

Schedule of Reclassification from Accumulated Other Comprehensive Income

The following table details the reclassifications from accumulated other comprehensive income (loss) (in thousands):

		Three Months Ended
Details about Accumulated Other Comprehensive Income (Loss) Components	Affected Line Item in the Statement Where Net Income is Presented	March 31, 2018			April 1, 2017
Derivative financial instruments
Interest rate swap	Interest (expense) or income	$	115		$	(192	)
	Tax (expense) or benefit	(28		)	71
	Net of tax	$	87		$	(121	)

Amounts in parentheses indicate reductions to profit.

Schedule of Dividends Declared and Paid Per Share

The Corporation declared and paid cash dividends per share as follows (in dollars):

	Three Months Ended
	March 31, 2018		April 1, 2017
Common shares	$	0.285	$	0.275

Schedule of Share Repurchases

The following table summarizes shares repurchased and settled by the Corporation (in thousands, except share data):

	Three Months Ended
	March 31, 2018			April 1, 2017
Shares repurchased	152,822			234,375
Cash purchase price	$	(5,964	)	$	(11,675	)
Purchases unsettled as of quarter end	—			409
Prior year purchases settled in current year	(1,381		)	—
Shares repurchased per cash flow	$	(7,345	)	$	(11,266	)

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

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):

	Three Months Ended
	March 31, 2018		April 1, 2017
Numerator:
Numerator for both basic and diluted EPS attributable to HNI Corporation net income	$	2,510	$	4,837
Denominators:
Denominator for basic EPS weighted-average common shares outstanding	43,360		44,050
Potentially dilutive shares from stock-based compensation plans	774		1,403
Denominator for diluted EPS	44,134		45,453
Earnings per share – basic	$	0.06	$	0.11
Earnings per share – diluted	$	0.06	$	0.11

Schedule of Weighted Average Number of Shares

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.

	Three Months Ended
	March 31, 2018	April 1, 2017
Common stock equivalents excluded because their inclusion would be anti-dilutive	1,226	616

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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock Based Compensation Expense

The following table summarizesexpense associated with these plans (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Compensation cost	$	3,712	$	4,671

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period

The options and units granted by the Corporation had fair values as follows (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Stock options	$	6,611	$	7,206

Schedule of Unrecognized Compensation Cost, Nonvested Awards

The following table summarizes unrecognized compensation expense and the weighted-average remaining service period for non-vested stock options and restricted stock units as of March 31, 2018:

	Unrecognized Compensation Expense (in thousands)		Weighted-Average Remaining Service Period (years)
Non-vested stock options	$	5,543	1.3
Non-vested restricted stock units	$	238	0.7

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Post-Retirement Health Care (Tables)

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The following table sets forth the components of net periodic benefit costs included in the Condensed Consolidated Statements of Comprehensive Income (in thousands):

	Three Months Ended
	March 31, 2018		April 1, 2017
Service cost	$	213	$	185
Interest cost	197		206
Amortization of net (gain) loss	37		7
Net periodic post-retirement benefit cost	$	447	$	398

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Reportable Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Reportable Segment Data

Reportable segment data reconciled to the Corporation's condensed consolidated financial statements was as follows (in thousands):

	Three Months Ended
	March 31, 2018			April 1, 2017
Net Sales:
Office furniture	$	380,915		$	359,981
Hearth products	124,154			117,686
Total	$	505,069		$	477,667
Income Before Income Taxes:
Office furniture	$	(387	)	$	6,444
Hearth products	17,114			11,811
General corporate	(15,265		)	(11,296		)
Total	$	1,462		$	6,959
Depreciation and Amortization Expense:
Office furniture	$	10,986		$	12,885
Hearth products	1,962			3,488
General corporate	5,497			2,466
Total	$	18,445		$	18,839
Capital Expenditures (including capitalized software):
Office furniture	$	11,577		$	21,020
Hearth products	2,938			2,078
General corporate	1,816			9,678
Total	$	16,331		$	32,776
	As of March 31, 2018			As of December 30, 2017
Identifiable Assets:
Office furniture	$	787,106		$	821,767
Hearth products	344,653			347,189
General corporate	213,380			222,594
Total	$	1,345,139		$	1,391,550

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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 505,069	$ 477,667
Office Furniture | Supplies-driven channel
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	191,228	178,964
Office Furniture | Contract channel
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	189,687	181,017
Hearth Products | Hearth
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 124,154	$ 117,686

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Revenue from Contracts with Customers - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Revenue from Contract with Customer [Abstract]
Trade receivables	$ 225,283	$ 260,455
Contract assets (current)	483	300
Contract assets (long-term)	4,147	2,350
Contract liabilities	$ 33,103	$ 54,295

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Revenue from Contracts with Customers - Change in Contract Assets and Liabilities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Change in Contract with Customer, Asset [Abstract]
Contract assets recognized	$ 2,100
Reclassification of contract assets to contra revenue	(120)
Impact of business combination	0
Net change	1,980
Change in Contract with Customer, Liability [Abstract]
Reclassification of contract assets to contra revenue	0
Contract liabilities recognized and recorded to contra revenue as a result of performance obligations satisfied	(28,153)
Contract liabilities paid	45,326
Cash received in advance and not recognized as revenue	(20,806)
Reclassification of cash received in advance to revenue as a result of performance obligations satisfied	24,179
Impact of business combination	646
Net change	$ 21,192

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Restructuring Costs Expensed (Details) - Realignment of Office Furniture Facilities and Exit of Business Line - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 1,338	$ 6,322
Cost of sales - accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	4,199
Restructuring charges
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 1,338	$ 2,123

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Restructuring (Changes in Restructuring Accruals) (Details) - Realignment of Office Furniture Facilities and Exit of Business Line $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Restructuring Reserve [Roll Forward]
Restructuring allowance as of December 30, 2017	$ 1,859
Restructuring charges	1,338
Cash payments	(3,057)
Restructuring allowance as of March 31, 2018	140
Severance Costs
Restructuring Reserve [Roll Forward]
Restructuring allowance as of December 30, 2017	1,343
Restructuring charges	74
Cash payments	(1,333)
Restructuring allowance as of March 31, 2018	84
Facility Exit Costs & Other
Restructuring Reserve [Roll Forward]
Restructuring allowance as of December 30, 2017	516
Restructuring charges	1,264
Cash payments	(1,724)
Restructuring allowance as of March 31, 2018	$ 56

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Restructuring (Narrative) (Details) - Manufacturing Facility $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Sale Leaseback Transaction [Line Items]
Term of lease	10 years
Net proceeds from sale of facility	$ 16.9
Deferred gain	5.1
Deferred gain, current	0.5
Deferred gain, noncurrent	$ 4.6

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Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Inventory Disclosure [Abstract]
Percentage of LIFO Inventory	86.00%
Inventories
Finished products	$ 98,844	$ 101,715
Materials and work in process	87,226	81,202
LIFO allowance	(27,382)	(27,234)
Total inventories	$ 158,688	$ 155,683

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Goodwill and Other Intangible Assets Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 279,480	$ 279,505
Definite-lived intangible assets	178,078	182,186
Indefinite-lived intangible assets	29,153	29,201
Total goodwill and intangible assets	$ 486,711	$ 490,892

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Goodwill and Other Intangible Assets (Goodwill) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	$ 321,044
Accumulated impairment losses, beginning balance	(41,539)
Goodwill, net, beginning balance	279,505
Foreign currency translation adjustments	(25)
Goodwill, gross, ending balance	321,019
Accumulated impairment losses, ending balance	(41,539)
Goodwill, net, ending balance	279,480
Office Furniture
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	137,845
Accumulated impairment losses, beginning balance	(41,396)
Goodwill, net, beginning balance	96,449
Foreign currency translation adjustments	(25)
Goodwill, gross, ending balance	137,820
Accumulated impairment losses, ending balance	(41,396)
Goodwill, net, ending balance	96,424
Hearth Products
Goodwill [Roll Forward]
Goodwill, gross, beginning balance	183,199
Accumulated impairment losses, beginning balance	(143)
Goodwill, net, beginning balance	183,056
Foreign currency translation adjustments	0
Goodwill, gross, ending balance	183,199
Accumulated impairment losses, ending balance	(143)
Goodwill, net, ending balance	$ 183,056

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Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Dec. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Gross	$ 282,087		$ 280,799
Accumulated Amortization	104,009		98,613
Net	178,078		182,186
Capitalized software	4,167	$ 1,340
Other definite-lived intangibles	1,688	$ 1,774
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2018	23,100
2019	22,100
2020	21,200
2021	20,200
2022	18,300
Patents
Finite-Lived Intangible Assets [Line Items]
Gross	40		40
Accumulated Amortization	28		26
Net	12		14
Software
Finite-Lived Intangible Assets [Line Items]
Gross	168,612		167,105
Accumulated Amortization	38,690		34,792
Net	129,922		132,313
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross	7,564		7,564
Accumulated Amortization	2,226		2,061
Net	5,338		5,503
Customer lists and other
Finite-Lived Intangible Assets [Line Items]
Gross	105,871		106,090
Accumulated Amortization	63,065		61,734
Net	$ 42,806		$ 44,356

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Goodwill and Other Intangible Assets (Indefinite Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 29,153	$ 29,201
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 29,153	$ 29,201

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Product Warranties (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Dec. 30, 2017
Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 15,388	$ 15,250
Accruals for warranties issued during period	5,992	5,540
Adjustments related to pre-existing warranties	68	(116)
Settlements made during the period	(6,010)	(5,548)
Balance at end of period	15,438	$ 15,126
Current - in the next twelve months	9,512		$ 9,524
Long-term - beyond one year	$ 5,926		$ 5,864

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Long-Term Debt Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Debt Instrument [Line Items]
Total debt	$ 328,964	$ 276,648
Current maturities of long-term debt	78,964	36,648
Long-term debt	250,000	240,000
Revolving credit facility with interest at a variable rate (March 31, 2018 - 3.0%; December 30, 2017 - 2.7%)
Debt Instrument [Line Items]
Total debt	$ 328,000	$ 267,500
Stated Interest Rate Percentage	3.00%	2.70%
Other amounts
Debt Instrument [Line Items]
Total debt	$ 964	$ 9,148

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Long-Term Debt Narrative (Details)	Apr. 20, 2018 USD ($) extension	Mar. 31, 2018 USD ($)
Debt Instrument [Line Items]
Deferred debt issuance costs, current		$ 400,000
Deferred debt issuance costs, noncurrent		600,000
Revolving credit facility with interest at a variable rate (March 31, 2018 - 3.0%; December 30, 2017 - 2.7%)
Debt Instrument [Line Items]
Long-term line of credit outstanding		328,000,000
Line of credit maximum borrowing capacity		400,000,000
Long-term line of credit, noncurrent		250,000,000
Line of credit, current		$ 78,000,000
Ratio of interest coverage to earnings for the last four fiscal quarters		4.0
Ratio of leverage to earnings for the last four fiscal quarters		3.5
Subsequent Event | Revolving credit facility with interest at a variable rate (March 31, 2018 - 3.0%; December 30, 2017 - 2.7%)
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity	$ 450,000,000
Number of optional extensions | extension	2
Optional extension period	1 year

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Income Tax Disclosure [Abstract]
Income before income taxes	$ 1,462	$ 6,959
Income tax expense (benefit)	$ (999)	$ 2,178
Effective tax rate	(66.10%)	31.00%

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Fair Value Measurements (Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017	Apr. 01, 2017	Dec. 31, 2016
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents (including money market funds)	$ 28,813	$ 23,348	$ 29,128	$ 36,312
Fair value, measurements, recurring
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents (including money market funds)	28,813	23,348
Derivative financial instruments	4,715	3,354
Variable-rate debt obligations	328,000	267,500
Deferred stock-based compensation	8,649	8,885
Fair value, measurements, recurring | 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 (including money market funds)	28,813	23,348
Derivative financial instruments	0	0
Variable-rate debt obligations	0	0
Deferred stock-based compensation	0	0
Fair value, measurements, recurring | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents (including money market funds)	0	0
Derivative financial instruments	4,715	3,354
Variable-rate debt obligations	328,000	267,500
Deferred stock-based compensation	8,649	8,885
Fair value, measurements, recurring | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents (including money market funds)	0	0
Derivative financial instruments	0	0
Variable-rate debt obligations	0	0
Deferred stock-based compensation	0	0
Fair value, measurements, recurring | Government securities
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	6,582	6,345
Fair value, measurements, recurring | Government securities | Quoted prices in active markets for identical assets (Level 1)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	0	0
Fair value, measurements, recurring | Government securities | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	6,582	6,345
Fair value, measurements, recurring | Government securities | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	0	0
Fair value, measurements, recurring | Corporate bonds
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	5,757	6,149
Fair value, measurements, recurring | Corporate bonds | Quoted prices in active markets for identical assets (Level 1)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	0	0
Fair value, measurements, recurring | Corporate bonds | Significant other observable inputs (Level 2)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	5,757	6,149
Fair value, measurements, recurring | Corporate bonds | Significant unobservable inputs (Level 3)
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value disclosure	$ 0	$ 0

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Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Components) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 514,068
Other comprehensive income (loss) before reclassifications	1,377	$ 598
Tax (expense) or benefit	(341)	(92)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(87)	121
Ending balance	513,740
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(3,611)	(5,000)
Ending balance	(2,662)	(4,373)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	31	(1,188)
Other comprehensive income (loss) before reclassifications	1	345
Tax (expense) or benefit	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0
Ending balance	32	(843)
Unrealized Gains (Losses) on Marketable Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(132)	(105)
Other comprehensive income (loss) before reclassifications	(100)	27
Tax (expense) or benefit	21	(9)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0
Ending balance	(211)	(87)
Pension and Post-retirement Liabilities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(5,630)	(5,167)
Other comprehensive income (loss) before reclassifications	0	0
Tax (expense) or benefit	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0
Ending balance	(5,630)	(5,167)
Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	2,120	1,460
Other comprehensive income (loss) before reclassifications	1,476	226
Tax (expense) or benefit	(362)	(83)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(87)	121
Ending balance	$ 3,147	$ 1,724

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Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017	Mar. 31, 2016
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	$ (2,662)	$ (3,611)
Common Stock
Class of Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount	72,000
Interest rate swap
Class of Stock [Line Items]
Derivative, notional amount			$ 150,000
Derivative, fixed interest rate			1.29%
Derivative liability	4,700
Accumulated other comprehensive income (loss)	$ 3,100

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Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Reclassification) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest (expense) or income	$ (2,337)	$ (1,046)
Tax (expense) or benefit	999	(2,178)
Net income attributable to HNI Corporation	2,510	4,837
Interest rate swap | Reclassifications from accumulated other comprehensive income (loss) | Derivative Financial Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest (expense) or income	115	(192)
Tax (expense) or benefit	(28)	71
Net income attributable to HNI Corporation	$ 87	$ (121)

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Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Share Repurchases) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares repurchased per cash flow	$ (7,345)	$ (11,266)
Common Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Repurchased common stock (in shares)	152,822	234,375
Cash purchase price	$ (5,964)	$ (11,675)
Purchases unsettled as of quarter end	0	409
Prior year purchases settled in current year	(1,381)	0
Shares repurchased per cash flow	$ (7,345)	$ (11,266)

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Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity - Dividends Declared (Details) - $ / shares	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Equity [Abstract]
Cash dividends per common share (in dollars per share)	$ 0.285	$ 0.275

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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Numerator:
Numerator for both basic and diluted EPS attributable to HNI Corporation net income	$ 2,510	$ 4,837
Denominators:
Denominator for basic EPS weighted-average common shares outstanding (in shares)	43,359,971	44,050,040
Potentially dilutive shares from stock-based compensation plans (in shares)	774,000	1,403,000
Denominator for diluted EPS (in shares)	44,134,142	45,452,664
Earnings per share - basic (in dollars per share)	$ 0.06	$ 0.11
Earnings per share - diluted (in dollars per share)	$ 0.06	$ 0.11

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Earnings Per Share Antidilutive Securities Excluded from Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Common stock equivalents excluded because their inclusion would be anti-dilutive
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	1,226	616

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Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 3,712	$ 4,671
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of granted stock options	6,611	$ 7,206
Unrecognized compensation cost	$ 5,543
Weighted-Average Remaining Service Period (years)	1 year 3 months 26 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 238
Weighted-Average Remaining Service Period (years)	7 months 25 days

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Post-Retirement Health Care (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Retirement Benefits [Abstract]
Service cost	$ 213	$ 185
Interest cost	197	206
Amortization of net (gain) loss	37	7
Net periodic post-retirement benefit cost	$ 447	$ 398

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Guarantees, Commitments and Contingencies (Details) $ in Millions	Mar. 31, 2018 USD ($)
Letter of Credit
Line of Credit Facility [Line Items]
Letters of credit	$ 18
Trade Letters Of Credit And Bankers Acceptances
Line of Credit Facility [Line Items]
Letters of credit	$ 4

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Reportable Segment Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) Segment	Apr. 01, 2017 USD ($)	Dec. 30, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | Segment	2
Segment Reporting Information [Line Items]
Net sales	$ 505,069	$ 477,667
Income before income taxes	1,462	6,959
Depreciation and amortization	18,445	18,839
Capital expenditures (including capitalized software)	16,331	32,776
Identifiable assets	1,345,139		$ 1,391,550
Operating segments | Office Furniture
Segment Reporting Information [Line Items]
Net sales	380,915	359,981
Income before income taxes	(387)	6,444
Depreciation and amortization	10,986	12,885
Capital expenditures (including capitalized software)	11,577	21,020
Identifiable assets	787,106		821,767
Operating segments | Hearth Products
Segment Reporting Information [Line Items]
Net sales	124,154	117,686
Income before income taxes	17,114	11,811
Depreciation and amortization	1,962	3,488
Capital expenditures (including capitalized software)	2,938	2,078
Identifiable assets	344,653		347,189
General corporate
Segment Reporting Information [Line Items]
Income before income taxes	(15,265)	(11,296)
Depreciation and amortization	5,497	2,466
Capital expenditures (including capitalized software)	1,816	$ 9,678
Identifiable assets	$ 213,380		$ 222,594

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Subsequent Events - Narrative (Details) - Revolving credit facility	Apr. 20, 2018 USD ($) extension	Mar. 31, 2018 USD ($)
Subsequent Event [Line Items]
Line of credit maximum borrowing capacity		$ 400,000,000
Subsequent Event
Subsequent Event [Line Items]
Number of optional extensions | extension	2
Optional extension period	1 year
Line of credit maximum borrowing capacity	$ 450,000,000