Interface (TILE) 10-Q 11 Aug 20 2020 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jul. 05, 2020	Aug. 06, 2020
Cover [Abstract]
Document Type	10-Q
Document Period End Date	Jul. 5, 2020
Entity File Number	001-33994
Entity Registrant Name	INTERFACE INC
Entity Incorporation, State or Country Code	GA
Entity Tax Identification Number	58-1451243
Entity Address, Address Line One	1280 West Peachtree Street
Entity Address, City or Town	Atlanta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30309
City Area Code	770
Local Phone Number	437-6800
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Document Quarterly Report	true
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, $0.10 Par Value Per Share
Trading Symbol	TILE
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		58,547,753
Entity Central Index Key	0000715787
Amendment Flag	false
Current Fiscal Year End Date	--01-03
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2020
Document Transition Report	false

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jul. 05, 2020	Dec. 29, 2019
Current Assets
Cash and cash equivalents	$ 91,844	$ 81,301
Accounts receivable, net	139,410	177,482
Inventories, net	263,721	253,584
Prepaid expenses and other current assets	38,411	35,768
Total current assets	533,386	548,135
Property and equipment, net	338,177	324,585
Operating lease right-of-use assets	100,091	107,044
Deferred tax asset	23,350	19,683
Goodwill and intangibles, net	226,828	346,474
Other assets	79,136	77,128
Total assets	1,300,968	1,423,049
Current liabilities
Accounts payable	64,894	75,687
Accrued expenses	122,505	140,652
Current portion of operating lease liabilities	14,124	15,914
Current portion of long-term debt	31,061	31,022
Total current liabilities	232,584	263,275
Long-term debt	589,130	565,178
Operating lease liabilities	86,716	91,829
Deferred income taxes	32,341	35,550
Other long-term liabilities	102,001	99,015
Total liabilities	1,042,772	1,054,847
Commitments and Contingencies
Shareholders’ equity
Preferred stock	0	0
Common stock	5,854	5,842
Additional paid-in capital	246,323	250,306
Retained earnings	184,206	286,056
Accumulated other comprehensive loss – foreign currency translation	(112,224)	(113,139)
Accumulated other comprehensive loss – cash flow hedge	(10,654)	(4,163)
Accumulated other comprehensive loss – pension liability	(55,309)	(56,700)
Total shareholders’ equity	258,196	368,202
Total liabilities and shareholders’ equity	$ 1,300,968	$ 1,423,049

Consolidated Condensed Statemen

Consolidated Condensed Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Income Statement [Abstract]
NET SALES	$ 259,504	$ 357,507	$ 547,673	$ 655,195
Cost of Sales	162,210	216,777	336,068	397,943
GROSS PROFIT ON SALES	97,294	140,730	211,605	257,252
Selling, General and Administrative Expenses	80,058	97,838	167,741	197,973
Restructuring Charges	(157)	0	(1,275)	0
Goodwill and Intangible Asset Impairment	0	0	121,258	0
OPERATING INCOME (LOSS)	17,393	42,892	(76,119)	59,279
Interest Expense	4,965	6,810	10,595	13,603
Other Expense	5,139	304	6,630	1,318
INCOME (LOSS) BEFORE INCOME TAX EXPENSE	7,289	35,778	(93,344)	44,358
Income Tax Expense	2,580	6,279	4,114	7,800
NET INCOME (LOSS)	$ 4,709	$ 29,499	$ (97,458)	$ 36,558
Earnings (Loss) Per Share - Basic (USD per share)	$ 0.08	$ 0.50	$ (1.67)	$ 0.61
Earnings (Loss) Per Share - Diluted (USD per share)	$ 0.08	$ 0.50	$ (1.67)	$ 0.61
Common Shares Outstanding – Basic (in shares)	58,484	59,285	58,466	59,459
Common Shares Outstanding – Diluted (in shares)	58,484	59,291	58,466	59,465

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 4,709	$ 29,499	$ (97,458)	$ 36,558
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment	16,160	4,249	915	(954)
Other Comprehensive Loss, Cash Flow Hedge	(351)	(4,667)	(6,491)	(7,973)
Other Comprehensive Income (Loss), Pension Liability Adjustment	(342)	829	1,391	738
Comprehensive Income (Loss)	$ 20,176	$ 29,910	$ (101,643)	$ 28,369

Consolidated Condensed Statem_2

Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019
OPERATING ACTIVITIES:
Net income (loss)	$ (97,458)	$ 36,558
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	21,748	22,698
Stock compensation amortization expense (benefit)	(2,216)	4,832
Deferred income taxes and other	(17,364)	(11,577)
Amortization of acquired intangible assets	2,631	3,252
Goodwill and Intangible Asset Impairment	121,258	0
Working capital changes:
Accounts receivable	37,660	(4,637)
Inventories	(8,792)	(13,349)
Prepaid expenses and current assets	1,005	(6,206)
Accounts payable and accrued expenses	(26,045)	(11,139)
CASH PROVIDED BY OPERATING ACTIVITIES	32,427	20,432
INVESTING ACTIVITIES:
Capital expenditures	(35,665)	(34,926)
Other	(29)	33
CASH USED IN INVESTING ACTIVITIES	(35,694)	(34,893)
FINANCING ACTIVITIES:
Repayments of long-term debt	(47,779)	(16,670)
Borrowing of long-term debt	70,000	70,000
Tax withholding payments for share-based compensation	(1,488)	(3,264)
Proceeds from issuance of common stock	93	60
Dividends paid	(4,392)	(7,763)
Payments for Repurchase of Common Stock	0	(25,154)
Finance lease payments	(810)	0
CASH PROVIDED BY FINANCING ACTIVITIES:	15,624	17,209
Net cash provided by operating, investing and financing activities	12,357	2,748
Effect of exchange rate changes on cash	(1,814)	519
CASH AND CASH EQUIVALENTS:
Net change during the period	10,543	3,267
Balance at beginning of period	81,301	80,989
Balance at end of period	$ 91,844	$ 84,256

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jul. 05, 2020
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation As contemplated by the Securities and Exchange Commission (the “Commission”) instructions to Form 10-Q, the following footnotes have been condensed and, therefore, do not contain all disclosures required in connection with annual financial statements. Reference should be made to the Company’s year-end financial statements and notes thereto contained in its Annual Report on Form 10-K for the fiscal year ended December 29, 2019 , as filed with the Commission. The financial information included in this report has been prepared by the Company, without audit. In the opinion of management, the financial information included in this report contains all adjustments necessary for a fair presentation of the results for the interim periods. Nevertheless, the results shown for interim periods are not necessarily indicative of results to be expected for the full year. The December 29, 2019 , consolidated condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States. The six month period ended July 5, 2020 includes 27 weeks, and the six month period ended June 30, 2019 includes 26 weeks. The three month periods ended July 5, 2020 and June 30, 2019 both include 13 weeks. Risks and Uncertainties The World Health Organization declared the COVID-19 outbreak a pandemic, and many companies have experienced disruptions in their operations. The Company considered the impact of COVID-19 on the assumptions and estimates used and determined that, except for the goodwill and intangible asset impairment discussed in Note 10 “ Goodwill and Intangible Assets ,” the decline in 2020 revenue, and its consequent impacts on production volume, operating income, net income, cash flows, and order rates, there were no other material adverse impacts on the Company’s results of operations and financial position at July 5, 2020 . The Company’s primary credit facility has various financial and other covenants including, but not limited to, a covenant to not exceed a maximum net debt to EBITDA ratio, as defined by the credit facility agreement. On July 15, 2020, the Company amended its Syndicated Credit Facility. See Note 16 entitled “Subsequent Events” for additional information. The full extent of the future impact of COVID-19 on the Company’s operations is uncertain. A prolonged COVID-19 pandemic may continue to have a material adverse impact on our operations, financial condition, and supply chains. It may negatively impact our ability to collect outstanding receivables, manage inventory, and service customers. The impact of COVID-19 could result in additional impairment losses related to goodwill, intangible assets, and property, plant and equipment. As the virus spreads through communities, it could impact the physical health, mental health, and productivity of our workforce as many of them are required to shelter in place and work from home for prolonged periods of time, and it could also impact our ability to reach our customers and collaborate with them as they are required to shelter in place and work from home for prolonged periods of time. The COVID-19 pandemic is having broad and negative implications on the global economy, which affects the size and timing of our customers’ capital budgets, and could result in delays or terminations of new and existing renovation projects, remodeling projects, new construction projects, and other projects where our products are used. COVID-19 Impact We continue to monitor our operations and have implemented various programs to mitigate the effects of COVID-19 on our business including reductions in employee headcount, labor costs, marketing expenses, consulting spend, travel costs, various other costs, and capital expenditures, as well as suspending and reducing shifts in our production facilities, temporarily furloughing employees, and implementing other cost reduction or avoidance initiatives. Government grants and payroll protection programs are available globally to provide assistance to companies impacted by the pandemic. The Coronavirus Aid, Relief and Economic Security Act (“ CARES Act”) enacted in the United States (see Note 13 entitled “Income Taxes” for additional information) and a payroll protection program enacted in the Netherlands (the “NOW Program”), provide benefits related to payroll costs either as reimbursements, lower payroll tax rates or deferral of payroll tax payments. The NOW Program provides eligible companies with reimbursement of labor costs as an incentive to retain employees on the payroll. During the second quarter the Company recognized benefits under several payroll protection programs as reductions to payroll costs. Reclassifications In fiscal year 2020, the Company made certain classification and presentation changes related to customer service and other costs. Previously, these costs were presented as a component of cost of sales. Beginning in fiscal year 2020, these costs are presented as a component of selling, general and administrative (“SG&A”) expense. The Company determined that this change better reflects how management views and operates the business. Reclassifications of the comparative prior year 2019 amounts have been made to conform to the current presentation as follows: Three Months Ended June 30, 2019 Statement of Operations Line Item As Reported Reclassification As Reclassified (In thousands) Cost of Sales $ 218,917 $ (2,140 ) $ 216,777 Selling, General and Administrative Expenses 95,698 2,140 97,838 Total $ 314,615 $ — $ 314,615 Six Months Ended June 30, 2019 Statement of Operations Line Item As Reported Reclassification As Reclassified (In thousands) Cost of Sales $ 401,207 $ (3,264 ) $ 397,943 Selling, General and Administrative Expenses 194,709 3,264 197,973 Total $ 595,916 $ — $ 595,916 Recently Adopted Accounting Pronouncements On December 30, 2019, the Company adopted Accounting Standards Codification (“ASC”) Topic 326, Credit Losses. This standard requires a financial asset (including trade receivables) to be presented at the net amount expected to be collected through the use of valuation allowances for credit losses. The income statement will reflect the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The Company adopted the new standard using a modified retrospective approach with no cumulative-effect adjustment to retained earnings to recognize expected credit losses on trade accounts receivable. The adoption of this standard did not have a material impact to the Company’s consolidated financial statements. On December 30, 2019, the Company adopted Accounting Standards Update (“ASU”) 2017-04, “Intangibles - Goodwill and Other,” that provides for the elimination of Step 2 from the goodwill impairment test. Under the new guidance, impairment charges are recognized to the extent the carrying amount of a reporting unit exceeds its fair value with certain limitations. See Note 10 entitled “Goodwill and Intangible Assets” for additional information. On December 30, 2019, the Company adopted ASU 2018-13, “Changes to the Disclosure Requirements for Fair Value Measurement.” This standard eliminates the current requirement to disclose the amount or reason for transfers between level 1 and level 2 of the fair value hierarchy and the requirement to disclose the valuation methodology for level 3 fair value measurements. The standard includes additional disclosure requirements for level 3 fair value measurements, including the requirement to disclose the changes in unrealized gains and losses in other comprehensive income during the period and permits the disclosure of other relevant quantitative information for certain unobservable inputs. The adoption of this standard did not have a material impact to the Company’s consolidated financial statements. On December 30, 2019, the Company adopted ASU 2018-15, “Internal-Use Software - Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement.” This ASU aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement service contract with the guidance to capitalize implementation costs of internal use software. The ASU also requires that the costs for implementation activities during the application development phase be capitalized in a hosting arrangement service contract, and costs during the preliminary and post implementation phase are expensed. The Company adopted this standard, which will be applied on a prospective basis, with no material impact to the Company’s consolidated financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted In December 2019, the Financial Accounting Standards Board (“FASB”) issued ASU 2019-12, “Simplifying the Accounting for Income Taxes.” The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in ASC Topic 740 related to intraperiod tax allocation, the calculation of income taxes in interim periods, and the accounting for outside basis differences of foreign subsidiaries and equity method investments. The amendments also improve consistent application of and simplify GAAP for other areas of ASC Topic 740, including franchise or similar taxes partially based on income, the accounting for a step-up in tax basis goodwill, and interim recognition of an enacted change in tax laws or rates, by clarifying and amending existing guidance. This new guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The Company is currently evaluating the impact of adoption of this standard but does not anticipate that the adoption will have a material effect on its consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting.” This standard addresses the risks from the discontinuation of the London Interbank Offered Rate (LIBOR) and provides optional expedients and exceptions to contracts, hedging relationships and other transactions that reference LIBOR if certain criteria are met. This new guidance is effective and may be applied beginning March 12, 2020 through December 31, 2022. The Company is currently evaluating the impact of adoption of this standard.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jul. 05, 2020
Revenues [Abstract]
Revenue Recognition	REVENUE RECOGNITION Revenue from sales of carpet, modular resilient flooring, rubber flooring, and other flooring-related material was approximately 98% of total revenue for the six months ended July 5, 2020 . The remaining 2% of revenue was generated from the installation of carpet and other flooring-related material. Disaggregation of Revenue For the six months ended July 5, 2020 , revenue from the Company’s customers is broken down by geography as follows: Geography Percentage of Net Sales Americas 56.5% Europe 30.4% Asia-Pacific 13.1%

Inventories

Inventories	6 Months Ended
	Jul. 05, 2020
Inventory Disclosure [Abstract]
Inventories	INVENTORIES Inventories are summarized as follows: July 5, 2020 December 29, 2019 (In thousands) Finished Goods $ 178,506 $ 184,336 Work in Process 16,720 13,152 Raw Materials 68,495 56,096 Inventories, net $ 263,721 $ 253,584

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jul. 05, 2020
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE The Company computes basic earnings or loss per share (“EPS”) by dividing net income or loss by the weighted average common shares outstanding, including participating securities outstanding, during the period as discussed below. Diluted EPS reflects the potential dilution beyond shares for basic EPS that could occur if securities or other contracts to issue common stock were exercised, converted into common stock or resulted in the issuance of common stock that would have shared in the Company’s earnings. The Company includes all unvested stock awards which contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid, in the number of shares outstanding in the basic and diluted EPS calculations when the inclusion of these shares would be dilutive. Unvested share-based awards of restricted stock are paid dividends equally with all other shares of common stock. As a result, the Company includes all outstanding restricted stock awards in the calculation of basic and diluted EPS. Distributed earnings include common stock dividends and dividends earned on unvested share-based payment awards. Undistributed earnings represent earnings that were available for distribution but were not distributed. The following tables show distributed and undistributed earnings: Three Months Ended Six Months Ended Earnings (Loss) Per Share July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 Basic Earnings (Loss) Per Share: Distributed Earnings $ 0.01 $ 0.07 $ 0.08 $ 0.13 Undistributed Earnings (Loss) 0.07 0.43 (1.75 ) 0.48 Total $ 0.08 $ 0.50 $ (1.67 ) $ 0.61 Diluted Earnings (Loss) Per Share: Distributed Earnings $ 0.01 $ 0.07 $ 0.08 $ 0.13 Undistributed Earnings (Loss) 0.07 0.43 (1.75 ) 0.48 Total $ 0.08 $ 0.50 $ (1.67 ) $ 0.61 Basic Earnings (Loss) Per Share $ 0.08 $ 0.50 $ (1.67 ) $ 0.61 Diluted Earnings (Loss) Per Share $ 0.08 $ 0.50 $ (1.67 ) $ 0.61 The following table presents net income that was attributable to participating securities: Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In millions) Net Income Attributable to Participating Securities $ — $ 0.3 $ — $ 0.3 The weighted average shares for basic and diluted EPS were as follows: Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Weighted Average Shares Outstanding 58,024 58,760 58,006 58,934 Participating Securities 460 525 460 525 Shares for Basic EPS 58,484 59,285 58,466 59,459 Dilutive Effect of Stock Options — 6 — 6 Shares for Diluted EPS 58,484 59,291 58,466 59,465 For the three and six months ended July 5, 2020 , there were 20,000 stock options in each respective period excluded from the computation of diluted EPS because the impact would be anti-dilutive. For the three and six months ended June 30, 2019 , there were no stock options or participating securities excluded from the computation of diluted EPS.

Long-term Debt

Long-term Debt	6 Months Ended
	Jul. 05, 2020
Debt Disclosure [Abstract]
Long-term Debt	LONG-TERM DEBT Syndicated Credit Facility At July 5, 2020 , the Company maintained an amended and restated Syndicated Credit Facility (the “Facility”) which provided to the Company and certain of its subsidiaries a multicurrency revolving loan and U.S. denominated and multicurrency term loans. Interest on base rate loans was charged at varying rates computed by applying a margin depending on the Company’s consolidated net leverage ratio as of the most recently completed fiscal quarter. Interest on LIBOR-based loans and fees for letters of credit were charged at varying rates computed by applying a margin over the applicable LIBOR rate, depending on the Company’s consolidated net leverage ratio as of the most recently completed fiscal quarter. In addition, the Company paid a commitment fee per annum (depending on the Company’s consolidated net leverage ratio as of the most recently completed fiscal quarter) on the unused portion of the Facility. Debt issuance costs associated with term loans are reflected as a reduction of long-term debt in accordance with applicable accounting standards. As these fees are expensed over the life of the outstanding borrowing, the debt balance will increase by the same amount as the fees that are expensed. As of July 5, 2020 and December 29, 2019 , the unamortized debt costs recorded as a reduction of long-term debt were $5.4 million and $6.3 million , respectively. Other deferred borrowing costs, which include underwriting, legal and other direct costs related to the issuance of revolving debt, net of accumulated amortization, were $1.1 million and $1.3 million as of July 5, 2020 and December 29, 2019 , respectively. These amounts are included in other assets in the Company’s consolidated condensed balance sheets. The Company amortizes these costs over the life of the related debt. As of July 5, 2020 , the Company had outstanding $566.8 million of term loan borrowing and $58.8 million of revolving loan borrowings under the Facility, and had $1.6 million in letters of credit outstanding under the Facility. As of December 29, 2019 , the Company had outstanding $581.6 million of term loan borrowing and $20.9 million of revolving loan borrowings under the Facility, and had $2.2 million in letters of credit outstanding under the Facility. As of July 5, 2020 and December 29, 2019 , the weighted average interest rate on borrowings outstanding under the Facility was 2.75% and 3.27% , respectively. As of July 5, 2020 and December 29, 2019 , the carrying value of the Company’s borrowings under the Facility approximates its fair value as the Facility bears interest rates that are similar to existing market rates. Under the Facility, the Company is required to make quarterly amortization payments of the term loan borrowings, which are due on the last day of the calendar quarter. The Company is currently in compliance with all covenants under the Facility. On July 15, 2020, the Company amended its Syndicated Credit Facility. See Note 16 entitled “ Subsequent Events ” for additional information. Other Lines of Credit Subsidiaries of the Company have an aggregate of the equivalent of $9.5 million of other lines of credit available at interest rates ranging from 2.0% to 6.0% as of both July 5, 2020 and December 29, 2019 . As of July 5, 2020 and December 29, 2019 , there were no borrowings outstanding under these lines of credit.

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jul. 05, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	DERIVATIVE INSTRUMENTS Interest Rate Risk Management In the third quarter of 2017 and the first quarter of 2019, the Company entered into interest rate swap transactions in notional amounts of $100 million and $150 million , respectively, to fix the variable interest rate on a portion of its term loan borrowing in order to manage a portion of its exposure to interest rate fluctuations. The Company’s objective and strategy with respect to these interest rate swaps is to protect the Company against adverse fluctuations in interest rates by reducing its exposure to variability to cash flows relating to interest payments on a portion of its outstanding debt. The Company is meeting its objective by hedging the risk of changes in its cash flows (interest payments) attributable to changes in LIBOR, the designated benchmark interest rate being hedged (the “hedged risk”), on an amount of the Company’s debt principal equal to the outstanding swap notional amounts. Cash Flow Interest Rate Swaps Both of the interest rate swaps described above are designated and qualify as cash flow hedges of forecasted interest payments. The Company reports the changes in fair value of the swaps as a component of other comprehensive income (or other comprehensive loss). The aggregate notional amount of the interest rate swaps as of July 5, 2020 was $250 million . Forward Contracts Our European operations, from time to time, are party to currency forward contracts designed to hedge the cash flow risk of intercompany sales from the manufacturing facility in Europe to the Americas. The Company’s objective and strategy with respect to these currency forward contracts is to protect the Company against adverse fluctuations in currency rates by reducing its exposure to variability in cash flows related to receipt of payment on intercompany sales. As of July 5, 2020 , there were no active forward currency contracts. Derivative Transactions Not Designated as Hedging Instruments Our Asia-Pacific operations, from time to time, purchase foreign currency options to economically hedge inventory purchases denominated in foreign currencies other than their functional currency. The Company’s objective with respect to these foreign currency options is to protect the Company against adverse fluctuations in currency rates by reducing its exposure to variability in cash flows related to payment on inventory purchases. These options are classified as non-designated derivative instruments. Gains and losses on the changes in fair value of these foreign currency options are recognized in earnings each period. As of July 5, 2020 , the Company had outstanding foreign currency options with an aggregate notional amount of $17.0 million . The table below sets forth the fair value of derivative instruments as of July 5, 2020 : Asset Derivatives as of Liability Derivatives as of Balance Sheet Location Fair Value Balance Sheet Location Fair Value (In thousands) Derivative instruments designated as hedging instruments: Interest rate swap contracts Other current assets $ — Accrued expenses $ 14,893 Derivative instruments not designated as hedging instruments: Foreign currency options Other current assets 320 Accrued expenses — $ 320 $ 14,893 The table below sets forth the fair value of derivative instruments as of December 29, 2019 : Asset Derivatives as of Liability Derivatives as of Balance Sheet Location Fair Value Balance Sheet Location Fair Value (In thousands) Derivative instruments designated as hedging instruments: Interest rate swap contracts Other current assets $ — Accrued expenses $ 5,801 Derivative instruments not designated as hedging instruments: Foreign currency options Other current assets 251 Accrued expenses — $ 251 $ 5,801 There was no significant impact to net income (loss) from the changes in fair value of derivatives designated as cash flow hedges during the three and six months ended July 5, 2020 . We expect that approximately $5.2 million related to cash flow hedges will be reclassified from accumulated other comprehensive loss as an increase to interest expense in the next 12 months. The following table summarizes the impact that changes in the fair value of derivatives designated as cash flow hedges had on accumulated other comprehensive loss, net of tax, during the three and six months ended July 5, 2020 and June 30, 2019 : Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Foreign currency contracts gain (loss) $ — $ 204 $ — $ (159 ) Interest rate swap contracts loss (351 ) (4,871 ) (6,491 ) (7,814 ) Loss recognized in accumulated other comprehensive loss $ (351 ) $ (4,667 ) $ (6,491 ) $ (7,973 ) Gains and losses from derivatives designated as cash flow hedges reclassified from accumulated other comprehensive income (loss) into net income (loss) are discussed in Note 14 entitled “ Items Reclassified From Accumulated Other Comprehensive Loss .” The following tables summarize gains and losses on derivatives not designated as hedging instruments within the consolidated condensed statements of operations for the three and six months ended July 5, 2020 and June 30, 2019 : Three Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Foreign currency options loss Other expense $ (1,629 ) $ (144 ) Six Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Foreign currency options gain (loss) Other expense $ 79 $ (549 )

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Jul. 05, 2020
Stockholders' Equity Note [Abstract]
Shareholders' Equity	SHAREHOLDERS’ EQUITY The following tables depict the activity in the accounts which make up shareholders’ equity for the three and six months ended July 5, 2020 and June 30, 2019 : SHARES COMMON STOCK ADDITIONAL PAID-IN CAPITAL RETAINED EARNINGS PENSION LIABILITY FOREIGN CURRENCY TRANSLATION ADJUSTMENT CASH FLOW HEDGE (In thousands) Balance, at December 29, 2019 58,416 $ 5,842 $ 250,306 $ 286,056 $ (56,700 ) $ (113,139 ) $ (4,163 ) Net loss — — — (102,167 ) — — — Stock issuances under employee plans 220 22 197 — — — — Other issuances of common stock 107 10 1,720 — — — — Unamortized stock compensation expense related to restricted stock awards — — (1,731 ) — — — — Cash dividends declared, $0.065 per common share — — — (3,807 ) — — — Forfeitures and compensation expense related to stock awards (255 ) (25 ) (4,114 ) — — — — Pension liability adjustment — — — — 1,733 — — Foreign currency translation adjustment — — — — — (15,245 ) — Cash flow hedge unrealized loss — — — — — — (6,140 ) Balance, at April 5, 2020 58,488 $ 5,849 $ 246,378 $ 180,082 $ (54,967 ) $ (128,384 ) $ (10,303 ) Net income — — — 4,709 — — — Stock issuances under employee plans 12 1 (1 ) — — — — Other issuances of common stock 70 7 2,294 — — — — Unamortized stock compensation expense related to restricted stock awards — — (2,300 ) — — — — Cash dividends declared, $0.01 per common share — — — (585 ) — — — Forfeitures and compensation expense related to stock awards (26 ) (3 ) (48 ) — — — — Pension liability adjustment — — — — (342 ) — — Foreign currency translation adjustment — — — — — 16,160 — Cash flow hedge unrealized loss — — — — — — (351 ) Balance, at July 5, 2020 58,544 $ 5,854 $ 246,323 $ 184,206 $ (55,309 ) $ (112,224 ) $ (10,654 ) SHARES COMMON STOCK ADDITIONAL PAID-IN CAPITAL RETAINED EARNINGS PENSION LIABILITY FOREIGN CURRENCY TRANSLATION ADJUSTMENT CASH FLOW HEDGE (In thousands) Balance, at December 30, 2018 59,508 $ 5,951 $ 270,269 $ 222,214 $ (43,610 ) $ (101,487 ) $ 1,326 Net income — — — 7,059 — — — Stock issuances under employee plans 509 51 379 — — — — Other issuances of common stock 224 22 3,900 — — — — Unamortized stock compensation expense related to restricted stock awards — — (3,922 ) — — — — Cash dividends declared, $0.065 per common share — — — (3,900 ) — — — Forfeitures and compensation expense related to stock awards (225 ) (22 ) 29 — — — — Pension liability adjustment — — — — (91 ) — — Foreign currency translation adjustment — — — — — (5,203 ) — Cash flow hedge unrealized loss — — — — — — (3,306 ) Balance, at March 31, 2019 60,016 $ 6,002 $ 270,655 $ 225,373 $ (43,701 ) $ (106,690 ) $ (1,980 ) Net income — — — 29,499 — — — Stock issuances under employee plans 2 — 6 — — — — Other issuances of common stock (1 ) — — — — — — Unamortized stock compensation expense related to restricted stock awards — — 52 — — — — Cash dividends declared, $0.065 per common share — — — (3,863 ) — — — Forfeitures and compensation expense related to stock awards (28 ) (3 ) 1,506 — — — — Share repurchases (1,556 ) (156 ) (24,998 ) — — — — Pension liability adjustment — — — — 829 — — Foreign currency translation adjustment — — — — — 4,249 — Cash flow hedge unrealized loss — — — — — — (4,667 ) Balance, at June 30, 2019 58,433 $ 5,843 $ 247,221 $ 251,009 $ (42,872 ) $ (102,441 ) $ (6,647 ) Stock Option Awards In accordance with accounting standards, the Company measures the cost of employee services received in exchange for an award of equity instruments based on the grant date fair value of the award. That cost will be recognized over the period in which the employee is required to provide the services – the requisite service period (usually the vesting period) – in exchange for the award. All outstanding stock options vested prior to the end of 2013, and therefore there was no stock option compensation expense in the first six months of 2020 or 2019 . As of July 5, 2020 , there were 20,000 stock options outstanding and exercisable, at an average exercise price of $12.43 per share. There were no stock options granted in the first six months of 2020 or 2019 . There were 7,500 stock options exercised and no stock options forfeited in the first six months of 2020 . There were 10,000 stock options exercised in the first six months of 2019 and 5,000 stock option forfeitures during those six months. The outstanding and exercisable stock options had no intrinsic value as of July 5, 2020 . Restricted Stock Awards During the six months ended July 5, 2020 and June 30, 2019 , the Company granted restricted stock awards for 308,100 and 224,000 shares of common stock, respectively. Awards of restricted stock (or a portion thereof) vest with respect to each recipient over a one to three -year period from the date of grant, provided the individual remains in the employment or service of the Company as of the vesting date. Additionally, certain awards (or a portion thereof) could vest earlier in the event of a change in control of the Company, or upon involuntary termination without cause. Compensation expense (benefit) related to restricted stock grants was $(0.2) million and $1.5 million for the six months ended July 5, 2020 , and June 30, 2019 , respectively. The Company has reduced its expense for restricted stock forfeited during the period. The following table summarizes restricted stock outstanding as of July 5, 2020 , as well as activity during the six months then ended: Restricted Shares Weighted Average Grant Date Fair Value Outstanding at December 29, 2019 468,200 $ 28.63 Granted 308,100 13.08 Vested (162,100 ) 19.22 Forfeited or canceled (153,700 ) 19.67 Outstanding at July 5, 2020 460,500 $ 24.53 As of July 5, 2020 , the unrecognized total compensation cost related to unvested restricted stock was $4.7 million . That cost is expected to be recognized by the end of 2023. Performance Share Awards During the six months ended July 5, 2020 and June 30, 2019 , the Company issued awards of performance shares to certain employees. These awards vest based on the achievement of certain performance-based goals over a performance period of one to three years , subject to the employee’s continued employment, and will be settled in shares of our common stock or in cash at the Company’s election. The number of shares that may be issued in settlement of the performance shares to the award recipients may be greater (up to 200% ) or lesser than the nominal award amount depending on actual performance achieved as compared to the performance targets set forth in the awards. The following table summarizes the performance shares outstanding as of July 5, 2020 , as well as the activity during the six months then ended: Performance Shares Weighted Average Grant Date Fair Value Outstanding at December 29, 2019 512,000 $ 19.71 Granted 263,700 15.36 Vested (164,300 ) 19.74 Forfeited or canceled (192,000 ) 19.67 Outstanding at July 5, 2020 419,400 $ 16.99 Compensation expense (benefit) related to the performance shares was $(2.0) million and $3.3 million for the six months ended July 5, 2020 and June 30, 2019 , respectively. The Company has reduced its expense for performance shares forfeited during the period. Unrecognized compensation expense related to these performance shares was approximately $7.0 million as of July 5, 2020 . Depending on the performance of the Company, any compensation expense related to these outstanding performance shares will be recognized by the end of 2023. Tax expense recognized with regard to restricted stock and performance shares was approximately $0.5 million for the six months ended July 5, 2020 .

Leases

Leases	6 Months Ended
	Jul. 05, 2020
Leases [Abstract]
Leases	LEASES General We have operating and finance leases for manufacturing equipment, corporate offices, showrooms, distribution facilities, design centers, as well as computer and office equipment. Our leases have terms ranging from 1 to 20 years , some of which may include options to extend the lease term for up to 5 years , and certain leases may include an option to terminate the lease. Our lease accounting may include these options to extend or terminate a lease when it is reasonably certain that we will exercise that option. We record a right-of-use asset and lease liability for leases extending beyond one year for operating and finance leases once a contract that contains a lease is executed and we have the right to control the use of the leased asset. The right-of-use asset is measured as the present value of the lease obligation. The discount rate used to calculate the present value of the lease liability was the Company’s incremental borrowing rate for the applicable geographical region. As of July 5, 2020 , there were no significant right-of-use assets and lease obligations from leases that had not commenced as of the end of the second quarter. The table below represents a summary of the balances recorded in the consolidated condensed balance sheets related to our leases as of July 5, 2020 and December 29, 2019 : July 5, 2020 December 29, 2019 Balance Sheet Location Operating Leases Finance Leases Operating Leases Finance Leases (In thousands) Operating lease right-of-use assets $ 100,091 $ 107,044 Current portion of operating lease liabilities $ 14,124 $ 15,914 Operating lease liabilities 86,716 91,829 Total operating lease liabilities $ 100,840 $ 107,743 Property and equipment $ 4,954 $ 5,007 Accrued expenses $ 1,455 $ 1,489 Other long-term liabilities 1,485 1,673 Total finance lease liabilities $ 2,940 $ 3,162 Lease Costs Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 Lease cost (In thousands) Finance lease cost: Amortization of right-of-use assets $ 335 $ 278 $ 635 $ 424 Interest on lease liabilities 16 11 34 19 Operating lease cost 6,759 5,930 12,981 11,601 Short-term lease cost 166 408 341 1,146 Variable lease cost 924 613 1,570 758 Total lease cost $ 8,200 $ 7,240 $ 15,561 $ 13,948 Other supplemental information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 16 $ 11 $ 34 $ 19 Operating cash flows from operating leases 5,569 5,395 11,450 10,505 Financing cash flows from finance leases 411 271 810 517 Right-of-use assets obtained in exchange for new finance lease liabilities 340 551 553 551 Right-of-use assets obtained in exchange for new operating lease liabilities 3,088 4,069 4,065 6,536 Lease Term and Discount Rate The table below presents the weighted average remaining lease terms and discount rates for finance and operating leases as of July 5, 2020 and December 29, 2019 : July 5, 2020 December 29, 2019 Weighted-average remaining lease term – finance leases (in years) 2.70 2.76 Weighted-average remaining lease term – operating leases (in years) 10.62 10.60 Weighted-average discount rate – finance leases 2.37 % 2.06 % Weighted-average discount rate – operating leases 5.93 % 5.86 % Maturity Analysis A maturity analysis of lease payments under non-cancellable leases is presented as follows: Fiscal Year Operating Leases Finance Leases (In thousands) 2020 (excluding the six months ended July 5, 2020) $ 10,334 $ 816 2021 17,476 1,063 2022 14,369 619 2023 11,850 400 2024 10,120 141 Thereafter 75,880 — Total future minimum lease payments (undiscounted) 140,029 3,039 Less: Present value discount (39,189 ) (99 ) Total lease liability $ 100,840 $ 2,940 Policy Elections We made an accounting policy election not to separate lease and non-lease components for all asset classes, except for data center assets, and will account for the lease payments as a single component. We also made an accounting policy election to exclude leases with an initial term of 12 months or less from the calculation of the right-of-use asset and lease liability recorded on the consolidated condensed balance sheets. These leases primarily represent month-to-month operating leases for vehicles and office equipment where we were reasonably certain that we would not elect an option to extend the lease.
Leases	LEASES General We have operating and finance leases for manufacturing equipment, corporate offices, showrooms, distribution facilities, design centers, as well as computer and office equipment. Our leases have terms ranging from 1 to 20 years , some of which may include options to extend the lease term for up to 5 years , and certain leases may include an option to terminate the lease. Our lease accounting may include these options to extend or terminate a lease when it is reasonably certain that we will exercise that option. We record a right-of-use asset and lease liability for leases extending beyond one year for operating and finance leases once a contract that contains a lease is executed and we have the right to control the use of the leased asset. The right-of-use asset is measured as the present value of the lease obligation. The discount rate used to calculate the present value of the lease liability was the Company’s incremental borrowing rate for the applicable geographical region. As of July 5, 2020 , there were no significant right-of-use assets and lease obligations from leases that had not commenced as of the end of the second quarter. The table below represents a summary of the balances recorded in the consolidated condensed balance sheets related to our leases as of July 5, 2020 and December 29, 2019 : July 5, 2020 December 29, 2019 Balance Sheet Location Operating Leases Finance Leases Operating Leases Finance Leases (In thousands) Operating lease right-of-use assets $ 100,091 $ 107,044 Current portion of operating lease liabilities $ 14,124 $ 15,914 Operating lease liabilities 86,716 91,829 Total operating lease liabilities $ 100,840 $ 107,743 Property and equipment $ 4,954 $ 5,007 Accrued expenses $ 1,455 $ 1,489 Other long-term liabilities 1,485 1,673 Total finance lease liabilities $ 2,940 $ 3,162 Lease Costs Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 Lease cost (In thousands) Finance lease cost: Amortization of right-of-use assets $ 335 $ 278 $ 635 $ 424 Interest on lease liabilities 16 11 34 19 Operating lease cost 6,759 5,930 12,981 11,601 Short-term lease cost 166 408 341 1,146 Variable lease cost 924 613 1,570 758 Total lease cost $ 8,200 $ 7,240 $ 15,561 $ 13,948 Other supplemental information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 16 $ 11 $ 34 $ 19 Operating cash flows from operating leases 5,569 5,395 11,450 10,505 Financing cash flows from finance leases 411 271 810 517 Right-of-use assets obtained in exchange for new finance lease liabilities 340 551 553 551 Right-of-use assets obtained in exchange for new operating lease liabilities 3,088 4,069 4,065 6,536 Lease Term and Discount Rate The table below presents the weighted average remaining lease terms and discount rates for finance and operating leases as of July 5, 2020 and December 29, 2019 : July 5, 2020 December 29, 2019 Weighted-average remaining lease term – finance leases (in years) 2.70 2.76 Weighted-average remaining lease term – operating leases (in years) 10.62 10.60 Weighted-average discount rate – finance leases 2.37 % 2.06 % Weighted-average discount rate – operating leases 5.93 % 5.86 % Maturity Analysis A maturity analysis of lease payments under non-cancellable leases is presented as follows: Fiscal Year Operating Leases Finance Leases (In thousands) 2020 (excluding the six months ended July 5, 2020) $ 10,334 $ 816 2021 17,476 1,063 2022 14,369 619 2023 11,850 400 2024 10,120 141 Thereafter 75,880 — Total future minimum lease payments (undiscounted) 140,029 3,039 Less: Present value discount (39,189 ) (99 ) Total lease liability $ 100,840 $ 2,940 Policy Elections We made an accounting policy election not to separate lease and non-lease components for all asset classes, except for data center assets, and will account for the lease payments as a single component. We also made an accounting policy election to exclude leases with an initial term of 12 months or less from the calculation of the right-of-use asset and lease liability recorded on the consolidated condensed balance sheets. These leases primarily represent month-to-month operating leases for vehicles and office equipment where we were reasonably certain that we would not elect an option to extend the lease.

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jul. 05, 2020
Retirement Benefits [Abstract]
Employee Benefit Plans	EMPLOYEE BENEFIT PLANS On December 31, 2019, a plan amendment was executed to eliminate future service accruals in the Dutch defined benefit plan, resulting in a curtailment of the plan. This plan remains in existence and will continue to pay vested benefits. Active participants will no longer accrue benefits after December 31, 2019, and instead will participate in an industry-wide multi-employer plan beginning in fiscal year 2020. During the three and six months ended July 5, 2020 , the Company recorded multi-employer pension expense related to multi-employer contributions of $0.6 million and $1.3 million , respectively. The following tables provide the components of net periodic benefit cost for the three and six months ended July 5, 2020 and June 30, 2019 : Three Months Ended Six Months Ended Defined Benefit Retirement Plans (Europe) July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Service cost $ — $ 184 $ — $ 369 Interest cost 870 1,266 1,761 2,547 Expected return on assets (1,038 ) (1,428 ) (2,102 ) (2,873 ) Amortization of prior service cost 26 16 52 32 Amortization of net actuarial losses 320 249 646 502 Net periodic benefit cost $ 178 $ 287 $ 357 $ 577 Three Months Ended Six Months Ended Salary Continuation Plan July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Interest cost $ 235 $ 289 $ 469 $ 577 Amortization of net actuarial losses 139 93 279 187 Net periodic benefit cost $ 374 $ 382 $ 748 $ 764 Three Months Ended Six Months Ended nora Defined Benefit Plan July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Service cost $ 259 $ 216 $ 517 $ 433 Interest cost 110 171 221 345 Amortization of net actuarial losses 110 — 110 — Net periodic benefit cost $ 479 $ 387 $ 848 $ 778 In accordance with applicable accounting standards, the service cost component of net periodic benefit costs is presented within Operating Income in the consolidated condensed statements of operations, while all other components of net periodic benefit costs are presented within other expense in the consolidated condensed statements of operations.

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Notes)	6 Months Ended
	Jul. 05, 2020
Goodwill [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	GOODWILL AND INTANGIBLE ASSETS During the first quarter of 2020, we performed a qualitative assessment of goodwill impairment indicators, considering macroeconomic conditions related to the COVID-19 pandemic and its potential impact to sales and operating income. We expect that the duration of the COVID-19 pandemic and its adverse impacts on the global economy, global travel restrictions, COVID-19 related government shutdowns, disruptions to our supply chain, distribution disruption, and disruption to our customers’ plans to spend capital on projects that use our products and services will result in lower revenue and operating income. As a result, we determined that there were indicators of impairment, and the Company proceeded with a quantitative assessment of goodwill for all reporting units at the end of the first quarter. In performing the first quarter quantitative goodwill impairment testing, the Company prepared valuations of reporting units on both a market comparable methodology and an income methodology, and those valuations were compared with the respective carrying values of the reporting units to determine whether any goodwill impairment existed. Our reporting units are one level below our reporting segment level. In preparing the valuations, past, present and future expectations of performance were considered, including the impact of the COVID-19 pandemic. This methodology was consistent with the approach used to perform the annual quantitative goodwill assessment in prior years. The weighted average cost of capital used in the goodwill impairment testing ranged between 10.0% and 10.5% , which primarily fluctuated based on a country risk premium assigned to the geographical region of the reporting unit. There is inherent uncertainty associated with key assumptions used in our impairment testing including the duration of the economic downturn associated with the COVID-19 pandemic and the recovery period. As a result of the first quarter assessment, we determined that the fair value for two reporting units was less than the carrying value and recognized a goodwill impairment loss of $116.5 million in the first quarter of 2020. The expected decline in revenue due to the impact of COVID-19 contributed to the lower fair value of our Europe and Asia-Pacific reporting units. As such, the goodwill impairment loss was allocated to our Europe and Asia-Pacific reporting units in the amounts of $99.2 million and $17.3 million , respectively. We determined that the goodwill in our Americas reporting unit was not impaired as the fair value exceeded the carrying value by more than 90% at April 5, 2020. There were no indicators of additional goodwill impairment as of July 5, 2020 . The changes in the carrying amounts of goodwill for the six months ended July 5, 2020 are as follows: BALANCE, AT DECEMBER 30, 2019 ACQUISITIONS PURCHASE PRICE ACCOUNTING ADJUSTMENTS IMPAIRMENT FOREIGN CURRENCY TRANSLATION BALANCE, AT (In thousands) $ 257,439 $ — $ — $ (116,495 ) $ 3,121 $ 144,065 Additionally, we determined that the trademarks and trade names intangible assets related to the acquired nora business were also impaired and recognized an impairment loss of $4.8 million in the first quarter of 2020. The carrying value of intangible assets after the impairment was $82.7 million at July 5, 2020 . There were no indicators of additional intangible asset impairment as of the end of the second quarter of 2020.

Segment Information

Segment Information	6 Months Ended
	Jul. 05, 2020
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	SEGMENT INFORMATION Based on applicable accounting standards, the Company has determined that it has three operating segments – namely, the Americas, Europe and Asia-Pacific geographic regions. Pursuant to accounting standards, the Company has aggregated the three operating segments into one reportable segment because they have similar economic characteristics, and the operating segments are similar in all of the following areas: (a) the nature of the products and services; (b) the nature of the production processes; (c) the type or class of customer for their products and services; (d) the methods used to distribute their products or provide their services; and (e) the nature of the regulatory environment. While the Company operates as one reportable segment for the reasons discussed, included below is selected information on our operating segments. Summary information by operating segment follows: AMERICAS EUROPE ASIA- PACIFIC TOTAL (In thousands) Three Months Ended July 5, 2020: Net Sales $ 151,222 $ 71,874 $ 36,408 $ 259,504 Depreciation and amortization 3,009 4,417 1,919 9,345 Total assets 685,080 536,782 172,737 1,394,599 Three Months Ended June 30, 2019: Net Sales $ 207,250 $ 95,665 $ 54,592 $ 357,507 Depreciation and amortization 3,300 4,651 2,108 10,059 Six Months Ended July 5, 2020: Net Sales $ 309,313 $ 166,564 $ 71,796 $ 547,673 Depreciation and amortization 6,069 8,858 3,937 18,864 Six Months Ended June 30, 2019: Net Sales $ 367,876 $ 188,715 $ 98,604 $ 655,195 Depreciation and amortization 6,551 9,331 4,240 20,122 A reconciliation of the Company’s total operating segment depreciation and amortization and assets to the corresponding consolidated amounts follows: Three Months Ended Six Months Ended Depreciation and Amortization July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Total segment depreciation and amortization $ 9,345 $ 10,059 $ 18,864 $ 20,122 Corporate depreciation and amortization 1,463 1,295 2,884 2,576 Reported depreciation and amortization $ 10,808 $ 11,354 $ 21,748 $ 22,698 Assets July 5, 2020 (In thousands) Total segment assets $ 1,394,599 Corporate assets 134,082 Eliminations (227,713 ) Reported total assets $ 1,300,968

Supplemental Cash Flow Informat

Supplemental Cash Flow Information Supplemental Cash Flow Information	6 Months Ended
	Jul. 05, 2020
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	SUPPLEMENTAL CASH FLOW INFORMATION Cash payments for interest amounted to $11.1 million and $12.0 million for the six months ended July 5, 2020 and June 30, 2019 , respectively. Income tax payments, net of refunds, amounted to $6.9 million and $16.4 million for the six months ended July 5, 2020 and June 30, 2019 , respectively. See Note 8 entitled “ Leases ” for supplemental disclosures related to finance and operating leases.

Income Taxes Income Taxes

Income Taxes Income Taxes	6 Months Ended
	Jul. 05, 2020
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company determines its provision for income taxes for interim periods using an estimate of its annual effective tax rate and records any changes affecting the estimated annual effective tax rate in the interim period in which the change occurs, including discrete tax items. During the six months ended July 5, 2020 , the Company recorded a total income tax provision of $4.1 million on a pre-tax loss of $93.3 million resulting in an effective tax rate of (4.4)% . The effective tax rate for this period was primarily impacted by a non-deductible goodwill impairment. Excluding the impact of the goodwill impairment, the effective tax rate was 17.8% for the period compared to 17.6% during the six months ended June 30, 2019 . The increase in the effective tax rate, excluding the goodwill impairment, was due to unfavorable changes related to company-owned life insurance and unrecognized tax benefits, which were offset by the favorable impacts of amending prior year tax returns. In the first six months of 2020 , the Company decreased its liability for unrecognized tax benefits by $0.4 million . As of July 5, 2020 , the Company had accrued approximately $25.1 million for unrecognized tax benefits. In accordance with applicable accounting standards, the Company’s deferred tax asset as of July 5, 2020 reflects a reduction for $2.8 million of these unrecognized tax benefits. Unrecognized tax benefits are reviewed on an ongoing basis and are adjusted for changing facts and circumstances, including the progress of tax audits and the closing of statutes of limitations. Based on information currently available, it is reasonably possible that approximately $14.7 million of unrecognized tax benefits may be recognized within the next 12 months due to a lapse of statute of limitations. On March 27, 2020, the Coronavirus Aid, Relief and Economic Security Act (“CARES Act”) was signed into law in response to the COVID-19 pandemic and provides certain tax relief to businesses. Tax provisions of the CARES Act include, among other things, the deferral of certain payroll taxes, relief for retaining employees, and certain income tax provisions for corporations. During the six months ended July 5, 2020 , the Company deferred approximately $1.4 million in payroll taxes under the CARES Act. Other than the deferral of payroll taxes, the CARES Act did not have an impact on the Company’s tax accounts, including its effective tax rate, during the six months ended July 5, 2020 . The Company expects it will defer approximately $4.0 million

Items Reclassified From Other C

Items Reclassified From Other Comprehensive Income	3 Months Ended
	Apr. 05, 2020
Equity [Abstract]
Items Reclassified From Other Comprehensive Income	ITEMS RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE LOSS Amounts reclassified out of accumulated other comprehensive income (loss) (“AOCI”) to the consolidated condensed statements of operations during the three and six months ended July 5, 2020 and June 30, 2019 are reflected in the tables below: Three Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Interest rate swap contracts gain (loss) Interest expense $ (1,124 ) $ 156 Amortization of benefit plan prior service cost and net actuarial losses Other expense (595 ) (358 ) Total loss reclassified from AOCI, net $ (1,719 ) $ (202 ) Six Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Interest rate swap contracts gain (loss) Interest expense $ (1,616 ) $ 295 Amortization of benefit plan prior service cost and net actuarial losses Other expense (1,087 ) (721 ) Total loss reclassified from AOCI, net $ (2,703 ) $ (426 )

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jul. 05, 2020
Restructuring and Related Activities [Abstract]
Restructuring and Asset Impairment Charges	RESTRUCTURING CHARGES For the six months ended July 5, 2020 , the Company recorded a reduction of $1.3 million of previously recognized restructuring charges due to changes in expected cash payments. At July 5, 2020 , the total restructuring reserve was $6.8 million for both the 2019 and 2018 restructuring plans. Below is a discussion of the restructuring plan activities by year. 2019 Restructuring Plan On December 23, 2019, the Company committed to a new restructuring plan that continues to focus on efforts to improve efficiencies and decrease costs across its worldwide operations, and more closely align its operating structure with its business strategy. The plan involved a reduction of approximately 105 employees and early termination of two office leases. As a result of this plan, the Company recorded a pre-tax restructuring charge in the fourth quarter of 2019 of approximately $9.0 million . The charge was comprised of severance expenses ( $8.8 million ) and lease exit costs ( $0.2 million ). The restructuring plan is expected to result in cash expenditures of approximately $9.0 million for payment of the employee severance and lease exit costs, as described above. The Company expects to complete the restructuring plan in fiscal year 2020 and expects the plan to yield annualized savings of approximately $6.0 million . A portion of the annualized savings is expected to be realized on the income statement in fiscal year 2020, with the remaining portion of the annualized savings expected to be realized in fiscal year 2021. A reconciliation of the 2019 plan restructuring reserve is presented below: BALANCE, AT DECEMBER 30, 2019 DEDUCTIONS 2020 CHARGED TO EXPENSES 2020 BALANCE, AT (In thousands) Workforce Reduction $ 8,634 $ (1,996 ) $ (353 ) $ 6,285 Other Exit Costs 139 — — 139 Total $ 8,773 $ (1,996 ) $ (353 ) $ 6,424 2018 Restructuring Plan On December 29, 2018, the Company committed to a restructuring plan in its continuing efforts to improve efficiencies and decrease costs across its worldwide operations, and more closely align its operating structure with its business strategy. The plan involved (i) a restructuring of its sales and administrative operations in the United Kingdom, (ii) a reduction of approximately 200 employees, primarily in the Europe and Asia-Pacific geographic regions, and (iii) the write-down of certain underutilized and impaired assets that included information technology assets and obsolete manufacturing equipment. The restructuring plan was substantially completed at the end of the second quarter of 2020. The Company redeployed essentially all of the anticipated savings toward the funding of sales and strategic growth initiatives, yielding negligible net savings on the Company’s income statement. A reconciliation of the 2018 plan restructuring reserve is presented below: BALANCE, AT DECEMBER 30, 2019 DEDUCTIONS 2020 CHARGED TO EXPENSES 2020 BALANCE, AT (In thousands) Workforce Reduction $ 1,898 $ (1,385 ) $ (223 ) $ 290 Other Exit Costs 774 — (699 ) 75 Total $ 2,672 $ (1,385 ) $ (922 ) $ 365

Subsequent Events

Subsequent Events	6 Months Ended
	Jul. 05, 2020
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Cost Reducing Initiatives and Related Charges As we continue to monitor the impact of COVID-19 and mitigate its effects to our operations, the Company expects to continue to pursue a variety of cost reducing initiatives including but not limited to voluntary incentive separation programs, temporary employee furloughs and other time-and-pay reduction programs, applications to participate in various government sponsored “wage support” programs, involuntary separations where necessary to streamline roles and responsibilities, potential facility closures to streamline operations, and various other cost reducing and cost avoidance activities. Syndicated Credit Facility On July 15, 2020, the Company entered into a second amendment to its Syndicated Credit Facility (the “Facility”). This amendment, among other changes, provides for the following: (1) amends the consolidated net leverage ratio covenant making it less restrictive for a period of seven consecutive fiscal quarters beginning with the third quarter of fiscal year 2020 through the first quarter of fiscal year 2022 (the “Relief Period”); (2) amends the pricing grid used to determine interest rate margins on outstanding loans as well as the commitment fee on the unused portion of the Facility to include additional consolidated net leverage ratio levels with increased pricing at higher levels of leverage; (3) amends interest rate provisions to provide for interest rate floors, as applicable, on certain tranches of term loans outstanding; and (4) provides temporary restrictions during the Relief Period on the Company’s ability to make acquisitions, pay dividends, repurchase shares, or enter into new credit facilities without lender consent. The Company incurred approximately $1.5 million in debt issuance costs to execute this amendment.

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jul. 05, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation As contemplated by the Securities and Exchange Commission (the “Commission”) instructions to Form 10-Q, the following footnotes have been condensed and, therefore, do not contain all disclosures required in connection with annual financial statements. Reference should be made to the Company’s year-end financial statements and notes thereto contained in its Annual Report on Form 10-K for the fiscal year ended December 29, 2019 , as filed with the Commission. The financial information included in this report has been prepared by the Company, without audit. In the opinion of management, the financial information included in this report contains all adjustments necessary for a fair presentation of the results for the interim periods. Nevertheless, the results shown for interim periods are not necessarily indicative of results to be expected for the full year. The December 29, 2019 , consolidated condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States. The six month period ended July 5, 2020 includes 27 weeks, and the six month period ended June 30, 2019 includes 26 weeks. The three month periods ended July 5, 2020 and June 30, 2019 both include 13 weeks.
Concentration Risk Disclosure	Risks and Uncertainties The World Health Organization declared the COVID-19 outbreak a pandemic, and many companies have experienced disruptions in their operations. The Company considered the impact of COVID-19 on the assumptions and estimates used and determined that, except for the goodwill and intangible asset impairment discussed in Note 10 “ Goodwill and Intangible Assets ,” the decline in 2020 revenue, and its consequent impacts on production volume, operating income, net income, cash flows, and order rates, there were no other material adverse impacts on the Company’s results of operations and financial position at July 5, 2020 . The Company’s primary credit facility has various financial and other covenants including, but not limited to, a covenant to not exceed a maximum net debt to EBITDA ratio, as defined by the credit facility agreement. On July 15, 2020, the Company amended its Syndicated Credit Facility. See Note 16 entitled “Subsequent Events” for additional information. The full extent of the future impact of COVID-19 on the Company’s operations is uncertain. A prolonged COVID-19 pandemic may continue to have a material adverse impact on our operations, financial condition, and supply chains. It may negatively impact our ability to collect outstanding receivables, manage inventory, and service customers. The impact of COVID-19 could result in additional impairment losses related to goodwill, intangible assets, and property, plant and equipment. As the virus spreads through communities, it could impact the physical health, mental health, and productivity of our workforce as many of them are required to shelter in place and work from home for prolonged periods of time, and it could also impact our ability to reach our customers and collaborate with them as they are required to shelter in place and work from home for prolonged periods of time. The COVID-19 pandemic is having broad and negative implications on the global economy, which affects the size and timing of our customers’ capital budgets, and could result in delays or terminations of new and existing renovation projects, remodeling projects, new construction projects, and other projects where our products are used.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements On December 30, 2019, the Company adopted Accounting Standards Codification (“ASC”) Topic 326, Credit Losses. This standard requires a financial asset (including trade receivables) to be presented at the net amount expected to be collected through the use of valuation allowances for credit losses. The income statement will reflect the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The Company adopted the new standard using a modified retrospective approach with no cumulative-effect adjustment to retained earnings to recognize expected credit losses on trade accounts receivable. The adoption of this standard did not have a material impact to the Company’s consolidated financial statements. On December 30, 2019, the Company adopted Accounting Standards Update (“ASU”) 2017-04, “Intangibles - Goodwill and Other,” that provides for the elimination of Step 2 from the goodwill impairment test. Under the new guidance, impairment charges are recognized to the extent the carrying amount of a reporting unit exceeds its fair value with certain limitations. See Note 10 entitled “Goodwill and Intangible Assets” for additional information. On December 30, 2019, the Company adopted ASU 2018-13, “Changes to the Disclosure Requirements for Fair Value Measurement.” This standard eliminates the current requirement to disclose the amount or reason for transfers between level 1 and level 2 of the fair value hierarchy and the requirement to disclose the valuation methodology for level 3 fair value measurements. The standard includes additional disclosure requirements for level 3 fair value measurements, including the requirement to disclose the changes in unrealized gains and losses in other comprehensive income during the period and permits the disclosure of other relevant quantitative information for certain unobservable inputs. The adoption of this standard did not have a material impact to the Company’s consolidated financial statements. On December 30, 2019, the Company adopted ASU 2018-15, “Internal-Use Software - Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement.” This ASU aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement service contract with the guidance to capitalize implementation costs of internal use software. The ASU also requires that the costs for implementation activities during the application development phase be capitalized in a hosting arrangement service contract, and costs during the preliminary and post implementation phase are expensed. The Company adopted this standard, which will be applied on a prospective basis, with no material impact to the Company’s consolidated financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted In December 2019, the Financial Accounting Standards Board (“FASB”) issued ASU 2019-12, “Simplifying the Accounting for Income Taxes.” The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in ASC Topic 740 related to intraperiod tax allocation, the calculation of income taxes in interim periods, and the accounting for outside basis differences of foreign subsidiaries and equity method investments. The amendments also improve consistent application of and simplify GAAP for other areas of ASC Topic 740, including franchise or similar taxes partially based on income, the accounting for a step-up in tax basis goodwill, and interim recognition of an enacted change in tax laws or rates, by clarifying and amending existing guidance. This new guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The Company is currently evaluating the impact of adoption of this standard but does not anticipate that the adoption will have a material effect on its consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting.” This standard addresses the risks from the discontinuation of the London Interbank Offered Rate (LIBOR) and provides optional expedients and exceptions to contracts, hedging relationships and other transactions that reference LIBOR if certain criteria are met. This new guidance is effective and may be applied beginning March 12, 2020 through December 31, 2022. The Company is currently evaluating the impact of adoption of this standard.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies Reclassifications (Tables)	6 Months Ended
	Jun. 30, 2019
Accounting Changes and Error Corrections [Abstract]
Reclassifications	Reclassifications In fiscal year 2020, the Company made certain classification and presentation changes related to customer service and other costs. Previously, these costs were presented as a component of cost of sales. Beginning in fiscal year 2020, these costs are presented as a component of selling, general and administrative (“SG&A”) expense. The Company determined that this change better reflects how management views and operates the business. Reclassifications of the comparative prior year 2019 amounts have been made to conform to the current presentation as follows: Three Months Ended June 30, 2019 Statement of Operations Line Item As Reported Reclassification As Reclassified (In thousands) Cost of Sales $ 218,917 $ (2,140 ) $ 216,777 Selling, General and Administrative Expenses 95,698 2,140 97,838 Total $ 314,615 $ — $ 314,615 Six Months Ended June 30, 2019 Statement of Operations Line Item As Reported Reclassification As Reclassified (In thousands) Cost of Sales $ 401,207 $ (3,264 ) $ 397,943 Selling, General and Administrative Expenses 194,709 3,264 197,973 Total $ 595,916 $ — $ 595,916

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jul. 05, 2020
Revenues [Abstract]
Disaggregation of Revenue	For the six months ended July 5, 2020 , revenue from the Company’s customers is broken down by geography as follows: Geography Percentage of Net Sales Americas 56.5% Europe 30.4% Asia-Pacific 13.1%

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jul. 05, 2020
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventories are summarized as follows: July 5, 2020 December 29, 2019 (In thousands) Finished Goods $ 178,506 $ 184,336 Work in Process 16,720 13,152 Raw Materials 68,495 56,096 Inventories, net $ 263,721 $ 253,584

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jul. 05, 2020
Earnings Per Share [Abstract]
Distributed And Undistributed Earnings	The following tables show distributed and undistributed earnings: Three Months Ended Six Months Ended Earnings (Loss) Per Share July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 Basic Earnings (Loss) Per Share: Distributed Earnings $ 0.01 $ 0.07 $ 0.08 $ 0.13 Undistributed Earnings (Loss) 0.07 0.43 (1.75 ) 0.48 Total $ 0.08 $ 0.50 $ (1.67 ) $ 0.61 Diluted Earnings (Loss) Per Share: Distributed Earnings $ 0.01 $ 0.07 $ 0.08 $ 0.13 Undistributed Earnings (Loss) 0.07 0.43 (1.75 ) 0.48 Total $ 0.08 $ 0.50 $ (1.67 ) $ 0.61 Basic Earnings (Loss) Per Share $ 0.08 $ 0.50 $ (1.67 ) $ 0.61 Diluted Earnings (Loss) Per Share $ 0.08 $ 0.50 $ (1.67 ) $ 0.61
Schedule of Earnings Per Share, Basic and Diluted	The following table presents net income that was attributable to participating securities: Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In millions) Net Income Attributable to Participating Securities $ — $ 0.3 $ — $ 0.3 The weighted average shares for basic and diluted EPS were as follows: Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Weighted Average Shares Outstanding 58,024 58,760 58,006 58,934 Participating Securities 460 525 460 525 Shares for Basic EPS 58,484 59,285 58,466 59,459 Dilutive Effect of Stock Options — 6 — 6 Shares for Diluted EPS 58,484 59,291 58,466 59,465

Derivative Instruments (Tables

Derivative Instruments (Tables)	6 Months Ended
	Jul. 05, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below sets forth the fair value of derivative instruments as of July 5, 2020 : Asset Derivatives as of Liability Derivatives as of Balance Sheet Location Fair Value Balance Sheet Location Fair Value (In thousands) Derivative instruments designated as hedging instruments: Interest rate swap contracts Other current assets $ — Accrued expenses $ 14,893 Derivative instruments not designated as hedging instruments: Foreign currency options Other current assets 320 Accrued expenses — $ 320 $ 14,893 The table below sets forth the fair value of derivative instruments as of December 29, 2019 : Asset Derivatives as of Liability Derivatives as of Balance Sheet Location Fair Value Balance Sheet Location Fair Value (In thousands) Derivative instruments designated as hedging instruments: Interest rate swap contracts Other current assets $ — Accrued expenses $ 5,801 Derivative instruments not designated as hedging instruments: Foreign currency options Other current assets 251 Accrued expenses — $ 251 $ 5,801
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The following table summarizes the impact that changes in the fair value of derivatives designated as cash flow hedges had on accumulated other comprehensive loss, net of tax, during the three and six months ended July 5, 2020 and June 30, 2019 : Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Foreign currency contracts gain (loss) $ — $ 204 $ — $ (159 ) Interest rate swap contracts loss (351 ) (4,871 ) (6,491 ) (7,814 ) Loss recognized in accumulated other comprehensive loss $ (351 ) $ (4,667 ) $ (6,491 ) $ (7,973 )
Derivatives Not Designated as Hedging Instruments [Table Text Block]	The following tables summarize gains and losses on derivatives not designated as hedging instruments within the consolidated condensed statements of operations for the three and six months ended July 5, 2020 and June 30, 2019 : Three Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Foreign currency options loss Other expense $ (1,629 ) $ (144 ) Six Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Foreign currency options gain (loss) Other expense $ 79 $ (549 )

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	6 Months Ended
	Jul. 05, 2020
Stockholders' Equity Note [Abstract]
Schedule of Stockholders Equity	The following tables depict the activity in the accounts which make up shareholders’ equity for the three and six months ended July 5, 2020 and June 30, 2019 : SHARES COMMON STOCK ADDITIONAL PAID-IN CAPITAL RETAINED EARNINGS PENSION LIABILITY FOREIGN CURRENCY TRANSLATION ADJUSTMENT CASH FLOW HEDGE (In thousands) Balance, at December 29, 2019 58,416 $ 5,842 $ 250,306 $ 286,056 $ (56,700 ) $ (113,139 ) $ (4,163 ) Net loss — — — (102,167 ) — — — Stock issuances under employee plans 220 22 197 — — — — Other issuances of common stock 107 10 1,720 — — — — Unamortized stock compensation expense related to restricted stock awards — — (1,731 ) — — — — Cash dividends declared, $0.065 per common share — — — (3,807 ) — — — Forfeitures and compensation expense related to stock awards (255 ) (25 ) (4,114 ) — — — — Pension liability adjustment — — — — 1,733 — — Foreign currency translation adjustment — — — — — (15,245 ) — Cash flow hedge unrealized loss — — — — — — (6,140 ) Balance, at April 5, 2020 58,488 $ 5,849 $ 246,378 $ 180,082 $ (54,967 ) $ (128,384 ) $ (10,303 ) Net income — — — 4,709 — — — Stock issuances under employee plans 12 1 (1 ) — — — — Other issuances of common stock 70 7 2,294 — — — — Unamortized stock compensation expense related to restricted stock awards — — (2,300 ) — — — — Cash dividends declared, $0.01 per common share — — — (585 ) — — — Forfeitures and compensation expense related to stock awards (26 ) (3 ) (48 ) — — — — Pension liability adjustment — — — — (342 ) — — Foreign currency translation adjustment — — — — — 16,160 — Cash flow hedge unrealized loss — — — — — — (351 ) Balance, at July 5, 2020 58,544 $ 5,854 $ 246,323 $ 184,206 $ (55,309 ) $ (112,224 ) $ (10,654 ) SHARES COMMON STOCK ADDITIONAL PAID-IN CAPITAL RETAINED EARNINGS PENSION LIABILITY FOREIGN CURRENCY TRANSLATION ADJUSTMENT CASH FLOW HEDGE (In thousands) Balance, at December 30, 2018 59,508 $ 5,951 $ 270,269 $ 222,214 $ (43,610 ) $ (101,487 ) $ 1,326 Net income — — — 7,059 — — — Stock issuances under employee plans 509 51 379 — — — — Other issuances of common stock 224 22 3,900 — — — — Unamortized stock compensation expense related to restricted stock awards — — (3,922 ) — — — — Cash dividends declared, $0.065 per common share — — — (3,900 ) — — — Forfeitures and compensation expense related to stock awards (225 ) (22 ) 29 — — — — Pension liability adjustment — — — — (91 ) — — Foreign currency translation adjustment — — — — — (5,203 ) — Cash flow hedge unrealized loss — — — — — — (3,306 ) Balance, at March 31, 2019 60,016 $ 6,002 $ 270,655 $ 225,373 $ (43,701 ) $ (106,690 ) $ (1,980 ) Net income — — — 29,499 — — — Stock issuances under employee plans 2 — 6 — — — — Other issuances of common stock (1 ) — — — — — — Unamortized stock compensation expense related to restricted stock awards — — 52 — — — — Cash dividends declared, $0.065 per common share — — — (3,863 ) — — — Forfeitures and compensation expense related to stock awards (28 ) (3 ) 1,506 — — — — Share repurchases (1,556 ) (156 ) (24,998 ) — — — — Pension liability adjustment — — — — 829 — — Foreign currency translation adjustment — — — — — 4,249 — Cash flow hedge unrealized loss — — — — — — (4,667 ) Balance, at June 30, 2019 58,433 $ 5,843 $ 247,221 $ 251,009 $ (42,872 ) $ (102,441 ) $ (6,647 )
Share-based Payment Arrangement, Restricted Stock Unit, Activity	The following table summarizes restricted stock outstanding as of July 5, 2020 , as well as activity during the six months then ended: Restricted Shares Weighted Average Grant Date Fair Value Outstanding at December 29, 2019 468,200 $ 28.63 Granted 308,100 13.08 Vested (162,100 ) 19.22 Forfeited or canceled (153,700 ) 19.67 Outstanding at July 5, 2020 460,500 $ 24.53
Schedule of Nonvested Performance-based Units Activity	The following table summarizes the performance shares outstanding as of July 5, 2020 , as well as the activity during the six months then ended: Performance Shares Weighted Average Grant Date Fair Value Outstanding at December 29, 2019 512,000 $ 19.71 Granted 263,700 15.36 Vested (164,300 ) 19.74 Forfeited or canceled (192,000 ) 19.67 Outstanding at July 5, 2020 419,400 $ 16.99

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jul. 05, 2020
Leases [Abstract]
Balance Sheet Information, Lessee [Table Text Block]	The table below represents a summary of the balances recorded in the consolidated condensed balance sheets related to our leases as of July 5, 2020 and December 29, 2019 : July 5, 2020 December 29, 2019 Balance Sheet Location Operating Leases Finance Leases Operating Leases Finance Leases (In thousands) Operating lease right-of-use assets $ 100,091 $ 107,044 Current portion of operating lease liabilities $ 14,124 $ 15,914 Operating lease liabilities 86,716 91,829 Total operating lease liabilities $ 100,840 $ 107,743 Property and equipment $ 4,954 $ 5,007 Accrued expenses $ 1,455 $ 1,489 Other long-term liabilities 1,485 1,673 Total finance lease liabilities $ 2,940 $ 3,162
Schedule of Lease Cost	Lease Costs Three Months Ended Six Months Ended July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 Lease cost (In thousands) Finance lease cost: Amortization of right-of-use assets $ 335 $ 278 $ 635 $ 424 Interest on lease liabilities 16 11 34 19 Operating lease cost 6,759 5,930 12,981 11,601 Short-term lease cost 166 408 341 1,146 Variable lease cost 924 613 1,570 758 Total lease cost $ 8,200 $ 7,240 $ 15,561 $ 13,948 Other supplemental information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 16 $ 11 $ 34 $ 19 Operating cash flows from operating leases 5,569 5,395 11,450 10,505 Financing cash flows from finance leases 411 271 810 517 Right-of-use assets obtained in exchange for new finance lease liabilities 340 551 553 551 Right-of-use assets obtained in exchange for new operating lease liabilities 3,088 4,069 4,065 6,536
Weighted Average Lease Term And Discount Rate, Lessee [Table Text Block]	The table below presents the weighted average remaining lease terms and discount rates for finance and operating leases as of July 5, 2020 and December 29, 2019 : July 5, 2020 December 29, 2019 Weighted-average remaining lease term – finance leases (in years) 2.70 2.76 Weighted-average remaining lease term – operating leases (in years) 10.62 10.60 Weighted-average discount rate – finance leases 2.37 % 2.06 % Weighted-average discount rate – operating leases 5.93 % 5.86 %
Lease Liability Maturity Schedule	A maturity analysis of lease payments under non-cancellable leases is presented as follows: Fiscal Year Operating Leases Finance Leases (In thousands) 2020 (excluding the six months ended July 5, 2020) $ 10,334 $ 816 2021 17,476 1,063 2022 14,369 619 2023 11,850 400 2024 10,120 141 Thereafter 75,880 — Total future minimum lease payments (undiscounted) 140,029 3,039 Less: Present value discount (39,189 ) (99 ) Total lease liability $ 100,840 $ 2,940
Lease Liability Maturity Schedule	A maturity analysis of lease payments under non-cancellable leases is presented as follows: Fiscal Year Operating Leases Finance Leases (In thousands) 2020 (excluding the six months ended July 5, 2020) $ 10,334 $ 816 2021 17,476 1,063 2022 14,369 619 2023 11,850 400 2024 10,120 141 Thereafter 75,880 — Total future minimum lease payments (undiscounted) 140,029 3,039 Less: Present value discount (39,189 ) (99 ) Total lease liability $ 100,840 $ 2,940

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jul. 05, 2020
Retirement Benefits [Abstract]
Schedule of Net Benefit Costs	The following tables provide the components of net periodic benefit cost for the three and six months ended July 5, 2020 and June 30, 2019 : Three Months Ended Six Months Ended Defined Benefit Retirement Plans (Europe) July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Service cost $ — $ 184 $ — $ 369 Interest cost 870 1,266 1,761 2,547 Expected return on assets (1,038 ) (1,428 ) (2,102 ) (2,873 ) Amortization of prior service cost 26 16 52 32 Amortization of net actuarial losses 320 249 646 502 Net periodic benefit cost $ 178 $ 287 $ 357 $ 577 Three Months Ended Six Months Ended Salary Continuation Plan July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Interest cost $ 235 $ 289 $ 469 $ 577 Amortization of net actuarial losses 139 93 279 187 Net periodic benefit cost $ 374 $ 382 $ 748 $ 764 Three Months Ended Six Months Ended nora Defined Benefit Plan July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Service cost $ 259 $ 216 $ 517 $ 433 Interest cost 110 171 221 345 Amortization of net actuarial losses 110 — 110 — Net periodic benefit cost $ 479 $ 387 $ 848 $ 778

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jul. 05, 2020
Goodwill [Abstract]
Schedule of Goodwill [Table Text Block]	The changes in the carrying amounts of goodwill for the six months ended July 5, 2020 are as follows: BALANCE, AT DECEMBER 30, 2019 ACQUISITIONS PURCHASE PRICE ACCOUNTING ADJUSTMENTS IMPAIRMENT FOREIGN CURRENCY TRANSLATION BALANCE, AT (In thousands) $ 257,439 $ — $ — $ (116,495 ) $ 3,121 $ 144,065

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jul. 05, 2020
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Summary information by operating segment follows: AMERICAS EUROPE ASIA- PACIFIC TOTAL (In thousands) Three Months Ended July 5, 2020: Net Sales $ 151,222 $ 71,874 $ 36,408 $ 259,504 Depreciation and amortization 3,009 4,417 1,919 9,345 Total assets 685,080 536,782 172,737 1,394,599 Three Months Ended June 30, 2019: Net Sales $ 207,250 $ 95,665 $ 54,592 $ 357,507 Depreciation and amortization 3,300 4,651 2,108 10,059 Six Months Ended July 5, 2020: Net Sales $ 309,313 $ 166,564 $ 71,796 $ 547,673 Depreciation and amortization 6,069 8,858 3,937 18,864 Six Months Ended June 30, 2019: Net Sales $ 367,876 $ 188,715 $ 98,604 $ 655,195 Depreciation and amortization 6,551 9,331 4,240 20,122
Reconciliation of Depreciation, Amortization, and Assets from Segments to Consolidated	A reconciliation of the Company’s total operating segment depreciation and amortization and assets to the corresponding consolidated amounts follows: Three Months Ended Six Months Ended Depreciation and Amortization July 5, 2020 June 30, 2019 July 5, 2020 June 30, 2019 (In thousands) Total segment depreciation and amortization $ 9,345 $ 10,059 $ 18,864 $ 20,122 Corporate depreciation and amortization 1,463 1,295 2,884 2,576 Reported depreciation and amortization $ 10,808 $ 11,354 $ 21,748 $ 22,698 Assets July 5, 2020 (In thousands) Total segment assets $ 1,394,599 Corporate assets 134,082 Eliminations (227,713 ) Reported total assets $ 1,300,968
Reconciliation of Assets from Segment to Consolidated	Assets July 5, 2020 (In thousands) Total segment assets $ 1,394,599 Corporate assets 134,082 Eliminations (227,713 ) Reported total assets $ 1,300,968

Items Reclassified From Accumul

Items Reclassified From Accumulated Other Comprehensive Loss Comprehensive income (Tables)	3 Months Ended
	Apr. 05, 2020
Statement of Other Comprehensive Income [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Amounts reclassified out of accumulated other comprehensive income (loss) (“AOCI”) to the consolidated condensed statements of operations during the three and six months ended July 5, 2020 and June 30, 2019 are reflected in the tables below: Three Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Interest rate swap contracts gain (loss) Interest expense $ (1,124 ) $ 156 Amortization of benefit plan prior service cost and net actuarial losses Other expense (595 ) (358 ) Total loss reclassified from AOCI, net $ (1,719 ) $ (202 ) Six Months Ended Statement of Operations Location July 5, 2020 June 30, 2019 (In thousands) Interest rate swap contracts gain (loss) Interest expense $ (1,616 ) $ 295 Amortization of benefit plan prior service cost and net actuarial losses Other expense (1,087 ) (721 ) Total loss reclassified from AOCI, net $ (2,703 ) $ (426 )

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Jul. 05, 2020
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	A reconciliation of the 2019 plan restructuring reserve is presented below: BALANCE, AT DECEMBER 30, 2019 DEDUCTIONS 2020 CHARGED TO EXPENSES 2020 BALANCE, AT (In thousands) Workforce Reduction $ 8,634 $ (1,996 ) $ (353 ) $ 6,285 Other Exit Costs 139 — — 139 Total $ 8,773 $ (1,996 ) $ (353 ) $ 6,424 A reconciliation of the 2018 plan restructuring reserve is presented below: BALANCE, AT DECEMBER 30, 2019 DEDUCTIONS 2020 CHARGED TO EXPENSES 2020 BALANCE, AT (In thousands) Workforce Reduction $ 1,898 $ (1,385 ) $ (223 ) $ 290 Other Exit Costs 774 — (699 ) 75 Total $ 2,672 $ (1,385 ) $ (922 ) $ 365

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Cost of Sales	$ 162,210,000	$ 216,777,000	$ 336,068,000	$ 397,943,000
Prior Period Reclassification Adjustment		0		0
Selling, General and Administrative Expenses	$ 80,058,000	97,838,000	$ 167,741,000	197,973,000
Costs and Expenses		314,615,000		595,916,000
Cost of sales before reclassification [Member]
Cost of Sales		218,917,000		401,207,000
SG&A As Reported [Member]
Selling, General and Administrative Expenses		95,698,000		194,709,000
Selling, General and Administrative Expenses [Member]
Prior Period Reclassification Adjustment		2,140,000		3,264,000
Cost of Sales [Member]
Prior Period Reclassification Adjustment		$ (2,140,000)		$ (3,264,000)

Revenue Recognition - Narrative

Revenue Recognition - Narrative (Details)	6 Months Ended
	Jul. 05, 2020
Carpet, Modular Resilient Flooring, and Related Products
Percent of revenue due to contracts with customers (percentage)	98.00%
Installation of Carpet and Other Flooring Related Material
Percent of revenue due to contracts with customers (percentage)	2.00%

Revenue Recognition - Disaggre

Revenue Recognition - Disaggregation of Revenue (Details)	6 Months Ended
	Jul. 05, 2020
Americas
Percentage of net sales (percentage)	56.50%
Europe
Percentage of net sales (percentage)	30.40%
Asia-Pacific
Percentage of net sales (percentage)	13.10%

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jul. 05, 2020	Dec. 29, 2019
Inventory Disclosure [Abstract]
Finished Goods	$ 178,506	$ 184,336
Work in Process	16,720	13,152
Raw Materials	68,495	56,096
Inventories, net	$ 263,721	$ 253,584

Earnings Per Share - Distribute

Earnings Per Share - Distributed and Undistributed Earnings (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Basic Earnings (Loss) Per Share:
Distributed Earnings (in dollars per share)	$ 0.01	$ 0.07	$ 0.08	$ 0.13
Undistributed Earnings (Loss) (in dollars per share)	0.07	0.43	(1.75)	0.48
Basic earnings (loss) per share, total (in dollars per share)	0.08	0.50	(1.67)	0.61
Diluted Earnings (Loss) Per Share:
Distributed Earnings (in dollars per share)	0.01	0.07	0.08	0.13
Undistributed Earnings (Loss) (in dollars per share)	0.07	0.43	(1.75)	0.48
Diluted earnings (loss) per share, total (in dollars per share)	0.08	0.50	(1.67)	0.61
Basic earnings (loss) per share (in dollars per share)	0.08	0.50	(1.67)	0.61
Diluted earnings (loss) per share (in dollars per share)	$ 0.08	$ 0.50	$ (1.67)	$ 0.61

Earnings Per Share - Calculatio

Earnings Per Share - Calculation of Income (Loss) Per Shares (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	$ 4,709	$ 29,499	$ (97,458)	$ 36,558
Weighted Average Shares Outstanding (in shares)	58,024	58,760	58,006	58,934
Participating Securities (in shares)	460	525	460	525
Shares for Basic Earnings Per Share (in shares)	58,484	59,285	58,466	59,459
Dilutive Effect of Stock Options (in shares)	0	6	0	6
Shares for Diluted Earnings Per Share (in shares)	58,484	59,291	58,466	59,465
Participating Securities
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	$ 0	$ 300	$ 0	$ 300

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - shares	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of EPS	20,000	0	20,000	0

Long-term Debt - Narrative (Det

Long-term Debt - Narrative (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jul. 05, 2020	Dec. 29, 2019
Other Line Of Credit
Debt Instrument [Line Items]
Revolving loan borrowings under the Facility	$ 0	$ 0
Line of credit facility, maximum borrowing capacity	$ 9,500,000	$ 9,500,000
Other Line Of Credit | Minimum
Debt Instrument [Line Items]
Line of credit facility, interest rate during period (percentage)	2.00%	2.00%
Other Line Of Credit | Maximum
Debt Instrument [Line Items]
Line of credit facility, interest rate during period (percentage)	6.00%	6.00%
Syndicated Facility Agreement
Debt Instrument [Line Items]
Debt Issuance Costs, Line of Credit Arrangements, Net	$ 1,100,000	$ 1,300,000
Term loan borrowings outstanding	566,800,000	581,600,000
Revolving loan borrowings under the Facility	58,800,000	20,900,000
Letters of credit outstanding	$ 1,600,000	$ 2,200,000
Long-term debt, weighted average interest rate, at point in time (percentage)	2.75%	3.27%
Syndicated Facility Agreement | Term Loan
Debt Instrument [Line Items]
Unamortized debt costs	$ 5,400,000	$ 6,300,000

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - USD ($) $ in Millions	Jul. 05, 2020	Mar. 31, 2019	Oct. 01, 2017
Interest Rate Swap 1
Derivative [Line Items]
Derivative, notional amount			$ 100
Interest Rate Swap 2
Derivative [Line Items]
Derivative, notional amount		$ 150
Interest rate swap contracts loss
Derivative [Line Items]
Derivative, notional amount	$ 250
Foreign Exchange Option [Member]
Derivative [Line Items]
Derivative, notional amount	$ 17

Derivative Instruments - Fair V

Derivative Instruments - Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Jul. 05, 2020	Dec. 29, 2019
Derivative [Line Items]
Liability Derivatives		$ 5,801
Other current assets
Derivative [Line Items]
Asset Derivatives	$ 320	251
Accounts Payable and Accrued Liabilities
Derivative [Line Items]
Liability Derivatives	14,893
Interest rate swap contracts loss | Derivative instruments designated as hedging instruments: | Other current assets | Cash Flow Hedging
Derivative [Line Items]
Asset Derivatives	0	0
Interest rate swap contracts loss | Derivative instruments designated as hedging instruments: | Accounts Payable and Accrued Liabilities | Cash Flow Hedging
Derivative [Line Items]
Liability Derivatives	14,893	5,801
Foreign Exchange Option [Member] | Not Designated as Hedging Instrument [Member] | Other current assets
Derivative [Line Items]
Asset Derivatives	320	251
Foreign Exchange Option [Member] | Not Designated as Hedging Instrument [Member] | Accounts Payable and Accrued Liabilities
Derivative [Line Items]
Liability Derivatives	$ 0	$ 0

Derivative Instruments - Cash F

Derivative Instruments - Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			$ (5,200)
Cash Flow Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	$ (351)	$ (4,667)	(6,491)	$ (7,973)
Foreign currency contracts gain (loss) | Cash Flow Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	0	204	0	(159)
Interest rate swap contracts loss | Cash Flow Hedging | Derivative instruments designated as hedging instruments
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	$ (351)	$ (4,871)	$ (6,491)	$ (7,814)

Derivative Instruments Derivati

Derivative Instruments Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Other Expense | Not Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member]
Derivative [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (1,629)	$ (144)	$ 79	$ (549)

Shareholders' Equity - Activity

Shareholders' Equity - Activity in Shareholders' Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 05, 2020	Apr. 05, 2020	Jun. 30, 2019	Mar. 31, 2019	Jul. 05, 2020	Jun. 30, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance		$ 368,202			$ 368,202
Net loss	$ 4,709		$ 29,499		(97,458)	$ 36,558
Pension liability adjustment	(342)		829		1,391	738
Foreign currency translation adjustment	16,160		4,249		915	(954)
Cash flow hedge unrealized gain (loss)	(351)		$ (4,667)		(6,491)	$ (7,973)
Balance	$ 258,196				$ 258,196
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance (in shares)	58,488	58,416	60,016	59,508	58,416	59,508
Balance	$ 5,849	$ 5,842	$ 6,002	$ 5,951	$ 5,842	$ 5,951
Stock issuances under employee plans (shares)	12	220	2	509
Stock issuances under employee plans	$ 1	$ 22	$ 0	$ 51
Other issuances of common stock (in shares)	70	107	(1)	224
Other issuances of common stock	$ 7	$ 10	$ 0	$ 22
Forfeitures and compensation expense related to stock awards	$ (3)	$ (25)	$ (3)	$ (22)
Stock Repurchased and Retired During Period, Shares			(1,556)
Stock Repurchased and Retired During Period, Value			$ (156)
tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsShares	(26)	(255)	(28)	(225)
Balance (in shares)	58,544	58,488	58,433	60,016	58,544	58,433
Balance	$ 5,854	$ 5,849	$ 5,843	$ 6,002	$ 5,854	$ 5,843
ADDITIONAL PAID-IN CAPITAL
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	246,378	250,306	270,655	270,269	250,306	270,269
Stock issuances under employee plans	(1)	197	6	379
Other issuances of common stock	2,294	1,720	0	3,900
Unamortized stock compensation expense related to restricted stock awards	(2,300)	(1,731)	52	(3,922)
Forfeitures and compensation expense related to stock awards	(48)	(4,114)	1,506	29
Stock Repurchased and Retired During Period, Value			(24,998)
Balance	246,323	246,378	247,221	270,655	246,323	247,221
RETAINED EARNINGS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	180,082	286,056	225,373	222,214	286,056	222,214
Net loss	4,709	(102,167)	29,499	7,059
Balance	184,206	180,082	251,009	225,373	184,206	251,009
Cash dividends declared, $0.065 per common share	(585)	(3,807)	(3,863)	(3,900)
PENSION LIABILITY
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	(54,967)	(56,700)	(43,701)	(43,610)	(56,700)	(43,610)
Pension liability adjustment	(342)	1,733	829	(91)
Balance	(55,309)	(54,967)	(42,872)	(43,701)	(55,309)	(42,872)
FOREIGN CURRENCY TRANSLATION ADJUSTMENT
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	(128,384)	(113,139)	(106,690)	(101,487)	(113,139)	(101,487)
Foreign currency translation adjustment	16,160	(15,245)	4,249	(5,203)
Balance	(112,224)	(128,384)	(102,441)	(106,690)	(112,224)	(102,441)
CASH FLOW HEDGE
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance	(10,303)	(4,163)	(1,980)	1,326	(4,163)	1,326
Cash flow hedge unrealized gain (loss)	(351)	(6,140)	(4,667)	(3,306)
Balance	$ (10,654)	$ (10,303)	$ (6,647)	$ (1,980)	$ (10,654)	$ (6,647)

Shareholders' Equity - Narrativ

Shareholders' Equity - Narrative (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jul. 05, 2020	Apr. 05, 2020	Jun. 30, 2019	Mar. 31, 2019	Jul. 05, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding (in shares)	20,000				20,000
Options, exercise price range (dollars per share)					$ 12.43
Stock options granted in period (in shares)					0	0
Stock options exercised in period (in shares)					7,500	10,000
Stock options forfeited in period (in shares)					0	5,000
Share-based Payment Arrangement, Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense					$ 0	$ 0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense					$ (200,000)	$ 1,500,000
Stock options granted (in shares)					308,100	224,000
Unrecognized compensation costs related to unvested restricted stock	$ 4,700,000				$ 4,700,000
Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, vesting period					1 year
Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, vesting period					3 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense					$ (2,000,000)	$ 3,300,000
Stock options granted (in shares)					263,700
Number of shares that may be issued in settlement of the performance shares to the award recipient, upper limit (percentage)					200.00%
Unrecognized compensation expense	7,000,000				$ 7,000,000
Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, vesting period					1 year
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, vesting period					3 years
Restricted Stock and Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense, tax benefit					$ 500,000
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsValue	$ 3,000	$ 25,000	$ 3,000	$ 22,000

Shareholders' Equity - Restrict

Shareholders' Equity - Restricted Stock Outstanding (Details) - Restricted Stock - $ / shares	6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding (in shares)	468,200
Granted (in shares)	308,100	224,000
Vested (in shares)	(162,100)
Forfeited or canceled (in shares)	(153,700)
Outstanding (in shares)	460,500
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, weighted average grant date fair value (in dollars per share)	$ 28.63
Granted, weighted average grant date fair value (in dollars per share)	13.08
Vested, weighted average grant date fair value (in dollars per share)	19.22
Forfeited or canceled (in dollars per share)	19.67
Outstanding, weighted average grant date fair value (in dollars per share)	$ 24.53

Shareholders' Equity - Performa

Shareholders' Equity - Performance Shares Outstanding (Details) - Performance Shares	6 Months Ended
	Jul. 05, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Outstanding (in shares) | shares	512,000
Granted (in shares) | shares	263,700
Vested (in shares) | shares	(164,300)
Forfeited or canceled (in shares) | shares	(192,000)
Outstanding (in shares) | shares	419,400
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 19.71
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	15.36
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	19.74
Forfeited or canceled (in dollars per share) | $ / shares	19.67
Outstanding, weighted average grant date fair value (in dollars per share) | $ / shares	$ 16.99

Leases - Narrative (Details)

Leases - Narrative (Details)	6 Months Ended
	Jul. 05, 2020
Lessee, Lease, Description [Line Items]
Lease renewal term	5 years
Minimum
Lessee, Lease, Description [Line Items]
Lease contract term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease contract term	20 years

Leases - Balance Sheet Informat

Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jul. 05, 2020	Dec. 29, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 100,091	$ 107,044
Current portion of operating lease liabilities	14,124	15,914
Operating lease liabilities	86,716	91,829
Total operating lease liabilities	100,840	107,743
Property and equipment	4,954	5,007
Accrued expenses	1,455	1,489
Other long-term liabilities	1,485	1,673
Total finance lease liabilities	$ 2,940	$ 3,162

Leases - Lease Costs (Details)

Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019	Dec. 29, 2019
Leases [Abstract]
Finance lease cost: Amortization of right-of-use assets	$ 335	$ 278	$ 635	$ 424
Finance lease cost: Interest on lease liabilities	16	11	34	19
Operating lease cost	6,759	5,930	12,981	11,601
Short-term lease cost	166	408	341	1,146
Variable lease cost	924	613	1,570	758
Total lease cost	8,200	7,240	15,561	13,948
Operating cash flows from finance leases	16	11	34	19
Operating cash flows from operating leases	5,569	5,395	11,450	10,505
Financing cash flows from finance leases	411	271	810	517
Right-of-use assets obtained in exchange for new finance lease liabilities	340	551	553	551
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 3,088	$ 4,069	$ 4,065	$ 6,536
Weighted-average remaining lease term – finance leases (in years)	2 years 8 months 12 days		2 years 8 months 12 days		2 years 9 months 3 days
Weighted-average remaining lease term – operating leases (in years)	10 years 7 months 13 days		10 years 7 months 13 days		10 years 7 months 6 days
Weighted-average discount rate – finance leases (percentage)	2.37%		2.37%		2.06%
Weighted-average discount rate – operating leases (percentage)	5.93%		5.93%		5.86%

Leases - Maturity of Lease Paym

Leases - Maturity of Lease Payments (Details) - USD ($) $ in Thousands	Jul. 05, 2020	Dec. 29, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020 (excluding the first quarter of 2020)	$ 10,334
2021	17,476
2022	14,369
2023	11,850
2024	10,120
Thereafter	75,880
Total future minimum lease payments (undiscounted)	140,029
Less: Present value discount	(39,189)
Total lease liability	100,840	$ 107,743
Finance Lease, Liability, Payment, Due [Abstract]
2020 (excluding the first quarter of 2020)	816
2021	1,063
2022	619
2023	400
2024	141
Thereafter	0
Total future minimum lease payments (undiscounted)	3,039
Less: Present value discount	(99)
Total lease liability	$ 2,940	$ 3,162

Employee Benefit Plans - Net Pe

Employee Benefit Plans - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
nora Defined Benefit Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 259	$ 216	$ 517	$ 433
Interest cost	110	171	221	345
Amortization of net actuarial losses	110	0	110	0
Net periodic benefit cost	479	387	848	778
Foreign Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer Plan, Contributions by Employer	600		1,300
Service cost	0	184	0	369
Interest cost	870	1,266	1,761	2,547
Expected return on assets	(1,038)	(1,428)	(2,102)	(2,873)
Amortization of prior service cost	26	16	52	32
Amortization of net actuarial losses	320	249	646	502
Net periodic benefit cost	178	287	357	577
United States | Salary Continuation Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	235	289	469	577
Amortization of net actuarial losses	139	93	279	187
Net periodic benefit cost	$ 374	$ 382	$ 748	$ 764

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 05, 2020	Apr. 05, 2020	Dec. 29, 2019
Goodwill [Line Items]
WACC Minimum		10.00%
WACC Maximum		10.50%
Goodwill	$ 144,065		$ 257,439
Goodwill, Acquired During Period	0
Goodwill, Purchase Accounting Adjustments	0
Goodwill, Impairment Loss	(116,495)
Goodwill, Foreign Currency Translation Gain (Loss)	3,121
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount		90.00%
Europe | Operating Segments
Goodwill [Line Items]
Goodwill, Impairment Loss	(99,200)
Asia-Pacific | Operating Segments
Goodwill [Line Items]
Goodwill, Impairment Loss	$ (17,300)

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets Intangible Assets (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 05, 2020	Apr. 05, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 4.8
Intangible Assets, Net (Excluding Goodwill)		$ 82.7

Segment Information - Narrative

Segment Information - Narrative (Details)	6 Months Ended
	Jul. 05, 2020
Segment Reporting [Abstract]
Number of operating segments	3
Number of reportable segments	1

Segment Information - Operating

Segment Information - Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019	Dec. 29, 2019
Segment Reporting Information [Line Items]
Net Sales	$ 259,504	$ 357,507	$ 547,673	$ 655,195
Depreciation and amortization	10,808	11,354	21,748	22,698
Total assets	1,300,968		1,300,968		$ 1,423,049
Operating Segments
Segment Reporting Information [Line Items]
Net Sales	259,504	357,507	547,673	655,195
Depreciation and amortization	9,345	10,059	18,864	20,122
Total assets	1,394,599		1,394,599
AMERICAS | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	151,222	207,250	309,313	367,876
Depreciation and amortization	3,009	3,300	6,069	6,551
Total assets	685,080		685,080
EUROPE | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	71,874	95,665	166,564	188,715
Depreciation and amortization	4,417	4,651	8,858	9,331
Total assets	536,782		536,782
ASIA- PACIFIC | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	36,408	54,592	71,796	98,604
Depreciation and amortization	1,919	$ 2,108	3,937	$ 4,240
Total assets	$ 172,737		$ 172,737

Segment Information - Operati_2

Segment Information - Operating Segments Depreciation, Amortization, and Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 10,808	$ 11,354	$ 21,748	$ 22,698
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	9,345	10,059	18,864	20,122
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 1,463	$ 1,295	$ 2,884	$ 2,576

Segment Information - Reconcili

Segment Information - Reconciliation of Segment Assets (Details) - USD ($) $ in Thousands	Jul. 05, 2020	Dec. 29, 2019
Total assets	$ 1,300,968	$ 1,423,049
Operating Segments
Total assets	1,394,599
Corporate, Non-Segment
Total assets	134,082
Eliminations
Total assets	$ (227,713)

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019
Supplemental Cash Flow Information [Abstract]
Cash payments for interest	$ 11.1	$ 12
Income tax payments, net of refunds	$ 6.9	$ 16.4

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Tax Expense	$ 2,580	$ 6,279	$ 4,114	$ 7,800
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	7,289	$ 35,778	(93,344)	$ 44,358
Decrease in Unrecognized Tax Benefits is Reasonably Possible	14,700		14,700
DeferredPayrollTaxesUnderCARESAct			$ 1,400
Effective income tax rate, percent			(4.40%)	17.60%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent			17.80%
Unrecognized tax benefits, period decrease			$ 400
Unrecognized tax benefits	$ 25,100		25,100
Decrease in deferred tax assets			2,800
IncreaseDecreaseInCARESActDefferedPayrollTaxes			$ 4,000

Items Reclassified From Accum_2

Items Reclassified From Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	$ (1,719)	$ (202)	$ (2,703)	$ (426)
Other Expense
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	(595)	(358)	(1,087)	(721)
Interest rate swap contracts loss | Derivative instruments designated as hedging instruments: | Cash Flow Hedging
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	$ (1,124)	$ 156	$ (1,616)	$ 295

Restructuring Charges - Narrati

Restructuring Charges - Narrative (Details) $ in Thousands	Dec. 23, 2019office	Dec. 29, 2018	Jul. 05, 2020USD ($)	Dec. 29, 2019USD ($)	Jun. 30, 2019USD ($)	Jul. 05, 2020USD ($)	Jun. 30, 2019USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			$ (157)		$ 0	$ (1,275)	$ 0
Number of employees		200
2018 and 2019 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			6,800			6,800
2019 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				$ 9,000		353
Restructuring Reserve			6,424	8,773		6,424
Number of employees	105
Severance costs				8,800
Estimated restructuring costs remaining			9,000			9,000
Expected savings from restructuring			6,000			6,000
2019 Restructuring Plan [Member] | Workforce Reduction
Restructuring Cost and Reserve [Line Items]
Restructuring Charges						353
Restructuring Reserve			$ 6,285	8,634		$ 6,285
Number Of office leases | office	2
2019 Restructuring Plan [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				$ 200

Restructuring Charges - Restruc

Restructuring Charges - Restructuring Activities (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 05, 2020	Dec. 29, 2019	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019
Restructuring Reserve [Roll Forward]
2020	$ 157		$ 0	$ 1,275	$ 0
2018 Restructuring Plan [Member]
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				2,672
2020				(1,385)
2020				(922)
Balance at September 29, 2019	365	$ 2,672		365
2018 Restructuring Plan [Member] | Workforce Reduction
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				1,898
2020				(1,385)
2020				(223)
Balance at September 29, 2019	290	1,898		290
2018 Restructuring Plan [Member] | Other Exit Costs
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				774
2020				0
2020				(699)
Balance at September 29, 2019	75	774		75
2019 Restructuring Plan [Member]
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				8,773
2020				(1,996)
2020		(9,000)		(353)
Balance at September 29, 2019	6,424	8,773		6,424
2019 Restructuring Plan [Member] | Workforce Reduction
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				8,634
2020				(1,996)
2020				(353)
Balance at September 29, 2019	6,285	8,634		6,285
2019 Restructuring Plan [Member] | Other Exit Costs
Restructuring Reserve [Roll Forward]
Balance at Beginning of Year				139
2020				0
2020				0
Balance at September 29, 2019	$ 139	$ 139		$ 139

Subsequent Events (Details)

Subsequent Events (Details) $ in Millions	3 Months Ended
	Oct. 04, 2020USD ($)
Subsequent Event
Subsequent Event [Line Items]
Payments of debt issuance costs	$ 1.5