LL Flooring (LLFLQ) 10-Q 1 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 26, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Entity Registrant Name	Lumber Liquidators Holdings, Inc.
Entity Central Index Key	1,396,033
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		28,542,202

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and Cash Equivalents	$ 12,606	$ 19,938
Merchandise Inventories	273,411	262,280
Prepaid Expenses	10,028	9,108
Other Current Assets	9,459	6,670
Total Current Assets	305,504	297,996
Property and Equipment, net	98,894	100,491
Goodwill	9,693	9,693
Other Assets	2,566	2,615
Total Assets	416,657	410,795
Current Liabilities:
Accounts Payable	60,701	67,676
Customer Deposits and Store Credits	43,493	38,546
Accrued Compensation	7,710	12,101
Sales and Income Tax Liabilities	5,499	4,273
Accrual for Multidistrict Litigation ("MDL") and Related Other Matters	37,193	36,960
Other Current Liabilities	20,061	18,605
Total Current Liabilities	174,657	178,161
Other Long-Term Liabilities	19,674	19,787
Revolving Credit Facility	26,000	15,000
Total Liabilities	220,331	212,948
Stockholders' Equity:
Common Stock ($0.001 par value; 35,000 shares authorized; 31,470 and 31,397 shares issued and 28,540 and 28,490 shares outstanding, respectively)	31	31
Treasury Stock, at cost (2,930 and 2,907 shares, respectively)	(141,439)	(140,875)
Additional Paid-in-Capital	209,676	208,629
Retained Earnings	129,242	131,214
Accumulated Other Comprehensive Loss	(1,184)	(1,152)
Total Stockholders' Equity	196,326	197,847
Total Liabilities and Stockholders' Equity	$ 416,657	$ 410,795

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Common Stock, par value	$ 0.001	$ 0.001
Common Stock, shares authorized	35,000,000	35,000,000
Common Stock, shares issued	31,470,000	31,397,000
Common Stock, shares outstanding	28,540,000	28,490,000
Treasury Stock, shares	2,930,000	2,907,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net Sales	$ 261,772	$ 248,389
Cost of Sales	166,800	161,590
Gross Profit	94,972	86,799
Selling, General and Administrative Expenses	96,418	112,214
Operating Loss	(1,446)	(25,415)
Other Expense	321	512
Loss Before Income Taxes	(1,767)	(25,927)
Income Tax Expense	205	445
Net Loss	$ (1,972)	$ (26,372)
Net Loss per Common Share-Basic	$ (0.07)	$ (0.93)
Net Loss per Common Share-Diluted	$ (0.07)	$ (0.93)
Weighted Average Common Shares Outstanding:
Basic	28,508	28,292
Diluted	28,508	28,292

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Loss	$ (1,972)	$ (26,372)
Foreign Currency Translation Adjustments	(32)	32
Total Other Comprehensive Income (Loss)	(32)	32
Comprehensive Loss	$ (2,004)	$ (26,340)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities:
Net Income (Loss)	$ (1,972)	$ (26,372)
Adjustments to Reconcile Net Loss:
Depreciation and Amortization	4,723	4,335
Stock-Based Compensation Expense	858	1,259
Loss on Disposal of Fixed Assets	7
Changes in Operating Assets and Liabilities:
Merchandise Inventories	(14,483)	(298)
Accounts Payable	(7,079)	(32,032)
Customer Deposits and Store Credits	5,062	9,587
Prepaid Expenses and Other Current Assets	(1,090)	733
Accrual for MDL and Related Other Matters	250	18,000
Other Assets and Liabilities	(1,157)	(4,971)
Net Cash Used in Operating Activities	(14,881)	(29,759)
Cash Flows from Investing Activities:
Purchases of Property and Equipment	(3,048)	(2,502)
Other Investing Activities	6
Net Cash Used in Investing Activities	(3,042)	(2,502)
Cash Flows from Financing Activities:
Borrowings on Revolving Credit Facility	15,000	35,000
Payments on Revolving Credit Facility	(4,000)	(3,000)
Payments on Capital Lease Obligations		(114)
Payments on Financed Insurance Obligations	(367)
Other Financing Activities	(524)	444
Net Cash Provided by Financing Activities	10,109	32,330
Effect of Exchange Rates on Cash and Cash Equivalents	482	631
Net (Decrease) Increase in Cash and Cash Equivalents	(7,332)	700
Cash and Cash Equivalents, Beginning of Period	19,938	10,271
Cash and Cash Equivalents, End of Period	$ 12,606	$ 10,971

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2018
Basis of Presentation [Abstract]
Basis of Presentation	Note 1. Basis of Presentation Lumber Liquidators Holdings, Inc. and its direct and indirect subsidiaries (collectively and, where applicable, individually, the “Company”) engage in business as a multi-channel specialty retailer of hardwood flooring, and hardwood flooring enhancements and accessories, operating as a single operating segment. The Company offers an extensive assortment of exotic and domestic hardwood species, engineered hardwood, laminate, resilient vinyl and wood-look ceramic tile flooring direct to the consumer. The Company also features the renewable flooring products, bamboo and cork, and provides a wide selection of flooring enhancements and accessories, including moldings, noise-reducing underlayment, adhesives and flooring tools. The Company also provides in-home delivery and installation services to certain of its customers. The Company sells primarily to homeowners or to contractors on behalf of homeowners through a network of store locations in primary or secondary metropolitan areas. As of March 31, 2018, the Company’s 398 stores spanned 46 states in the United States (“U.S.”) and included eight stores in Canada. In addition to the store locations, the Company’s products may be ordered, and customer questions/concerns addressed, through its call center in Toano, Virginia, its website, www.lumberliquidators.com , and catalogs published from time-to-time. The Company finishes the majority of the Bellawood products on its finishing lines in Toano, Virginia, which along with the call center, corporate offices, and a distribution center, represent the “Corporate Headquarters.” The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q for interim financial reporting pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) . In the opinion of management, all adjustments (consisting of normal and recurring adjustments except those otherwise described herein) considered necessary for a fair presentation have been included in the accompanying condensed consolidated financial statements. However, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements. Therefore, the interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in the Company’s annual report filed on Form 10-K for the year ended December 31, 201 7 . The condensed consolidated financial statements of the Company include the accounts of its wholly owned subsidiaries. All intercompany transactions have been eliminated in consolidation. Results of operations for the three months ended March 31, 2018 are not necessarily indicative of future results to be expected for the full year due to a number of factors, including seasonality.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2. Summary of Significant Accounting Policies Fair Value of Financial Instruments The carrying amounts of financial instruments such as cash and cash equivalents, accounts payable and other liabilities approximates fair value because of the short-term nature of these items. The carrying amount of obligations under the revolving credit facility approximates fair value due to the variable rate of interest. Merchandise Inventories The Company values merchandise inventories at the lower of merchandise cost or net realizable value. The Company periodically reviews the carrying value of items in inventory and records a lower of cost or net realizable value adjustment when there is evidence that the utility of inventory will be less than its cost. In determining market value, the Company makes judgments and estimates as to the market value of its products, based on factors such as historical results and current sales trends. Although the Company believes its products are appropriately valued as of the balance sheet date, there can be no assurance that future events or changes in key assumptions would not significantly impact their value. Recognition of Net Sales In May 2014, the FASB issued Accounting Standards Update No. 2014-09 (“Topic 606”), Revenue from Contracts with Customers , which supersedes the revenue recognition requirements in Topic 605, Revenue Recognition , including most industry-specific revenue recognition guidance. The core principle of Topic 606 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and when control of those goods and services has passed to the customer. The Company adopted Topic 606 as of January 1, 2018 using the modified retrospective transition method. However, because adoption of the standard did not change the timing or amount of the Company’s recognition of revenue and because the Company does not recognize revenues for partial contracts, there was no adjustment to retained earnings needed as part of the adoption of the new standard. The Company generates revenues primarily by retailing merchandise in the form of hardwood and wood-look flooring and accessories. Additionally, the Company expands its revenues by offering services to deliver and/or install this merchandise for its customers; it considers these services to be separate performance obligations. The separate performance obligations are detailed on the customer’s invoice(s) and the customer often purchases flooring merchandise without purchasing installation or delivery services. Sales occur through a network of 398 stores spanning 46 states including eight stores in Canada. In addition, both the merchandise and services can be ordered through a call center and from the Company’s website, www.lumberliquidators.com . The Company’s agreements with its customers are of short duration (less than a year) and as such the Company has elected not to disclose revenue for partially satisfied contracts that will be completed in the days following the end of a period as permitted by GAAP. The Company reports its revenues exclusive of sales taxes collected from customers and remitted to governmental taxing authorities, consistent with past practice. Revenue is based on consideration specified in a contract with a customer, and excludes any sales incentives from vendors and amounts collected on behalf of third parties. The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product to a customer or performing service for a customer. Revenues from installation and freight services are recognized when the delivery is made or the installation is complete, which approximates the recognition of revenue over time due to the short duration of service provided. The price of the Company’s merchandise and services are specified in the contract and detailed on the invoice agreed to with the customer including any discounts. The Company generally requires customers to pay a deposit, equal to approximately half of the retail sales value, when ordering merchandise not regularly carried in a given location or not currently in stock. In addition, the Company generally does not extend credit to its customers with payment due in full at the time the customer takes possession of merchandise or when the service is provided. Customer payments and deposits received in advance of the customer taking possession of the merchandise or receiving the services are recorded as deferred revenues in the accompanying condensed consolidated balance sheet caption Customer Deposits and Store Credits. The following table shows the activity in this account during the period:    Three Months Ended March 31, 2018 Three Months Ended March 31, 2017  Customer Deposits and Store Credits, Beginning Balance $ (38,546) $ (32,639)  New Deposits (285,522) (277,279)  Recognition of Revenue 261,772 248,389  Sales Tax included in Customer Deposits 16,605 16,199  Other 2,198 3,203  Customer Deposits and Store Credits, Ending Balance $ (43,493) $ (42,127)  Subject to limitations under the Company’s policy, return of unopened merchandise is accepted for 30 days. The amount of revenue recognized for flooring merchandise is adjusted for expected returns, which are estimated based on the Company’s historical data, current sales levels, and forecasted economic trends. The Company uses the expected value method to estimate returns because it has a large number of contracts with similar characteristics. The Company previously recognized revenue in full, recorded an allowance for expected returns (contra-revenue), and recorded a separate refund liability for expected returns. The Company reduces revenue by the amount of expected returns and records it within accrued expenses and other on the condensed consolidated balance sheet. The Company continues to estimate the amount of returns based on the historical data. In addition, the Company recognizes a related asset for the right to recover returned merchandise and records it in the Other Current Assets caption of the accompanying condensed consolidated balance sheet. This amount was $1.2 million at March 31, 2018. The Company recognizes sales commissions as incurred since the amortization period is less than one year. The Company offers a range of limited warranties for the durability of the finish on its prefinished products. These limited warranties range from one to 100 years, with lifetime warranties for certain of the Company’s products. Warranty reserves are based primarily on claims experience, sales history and other considerations. Warranty costs are recorded in cost of sales. These costs are included in Selling, General, and Administrative Expenses on the condensed consolidated statements of operations. In total, we offer hundreds of different flooring products; however, no single flooring product represented a significant portion of our sales mix. By major product category, our sales mix was as follows:     Three Months Ended March 31, 2018 Three Months Ended March 31, 2017   Solid and Engineered Hardwood, Bamboo and Cork $ 96,684 37% $ 109,054 44%  Manufactured Products 1 90,929 35% 72,901 29%  Moldings and Accessories and Other 48,896 19% 49,043 20%  Installation and Delivery Services 25,263 9% 17,391 7%  Total $ 261,772 100% $ 248,389 100%   1 Includes laminate, vinyl, engineered vinyl plank and wood-look ceramic tile.  Cost of Sales  Cost of sales includes the cost of the product sold, cost of installation services, transportation costs from vendor to the Company’s distribution centers or store locations, any applicable finishing costs related to production of the Company’s proprietary brands, transportation costs from distribution centers to store locations, transportation costs for the delivery of products from store locations to customers, certain costs of quality control procedures, warranty and customer satisfaction costs, inventory adjustments including shrinkage, and costs to produce samples, reduced by vendor allowances. Recent Accounting Pronouncements Not Yet Adopted  In February 2016, the FASB issued Accounting Standards Update No. 2016-02 (“ASU 2016-02”), which creates ASC Topic 842, Leases , and supersedes the lease accounting requirements in Topic 840, Leases . In summary, Topic 842 requires organizations that lease assets — referred to as “lessees” — to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. The amendments in ASU 2016-02 are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Therefore, the new standard will become effective for the Company at the beginning of its 2019 fiscal year. The Company is currently assessing the impact of implementing the new guidance on its consolidated financial statements including educating employees of the breadth of the new standard, evaluating software solutions to track leases, identifying all leases including reviewing contracts for potential embedded leases. The Company is monitoring the FASB’s recent deliberations surrounding a simplified transition approach and is evaluating the practical expedients provided by that approach as well as those already included the standard. When implemented, the standard is expected to have a material impact as operating leases will be recognized on the Company’s consolidated balance sheet.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2018
Stockholders' Equity [Abstract]
Stockholders' Equity	Note 3 . Stockholders’ Equity Net Loss per Common Share The following table sets forth the computation of basic and diluted net loss per common share:     Three Months Ended  March 31,  2018 2017  Net Loss $ (1,972) $ (26,372)  Weighted Average Common Shares Outstanding—Basic 28,508 28,292  Effect of Dilutive Securities:  Common Stock Equivalents — —  Weighted Average Common Shares Outstanding—Diluted 28,508 28,292  Net Loss per Common Share—Basic $ (0.07) $ (0.93)  Net Loss per Common Share—Diluted $ (0.07) $ (0.93)  The following shares have been excluded from the computation of Weighted Average Common Shares Outstanding—Diluted because the effect would be anti-dilutive:     Three Months Ended March 31,  2018 2017  Stock Options 688 769  Restricted Shares 347 469 Stock Repurchase Program The Company’s board of directors has authorized the repurchase of up to $150 million of the Company’s common stock. At March 31, 2018 , the Company had approximately $14.7 million remaining u nder this authorization. The Company has not repurchased any shares of its common stock under this program in more than three years.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2018
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 4 . Stock-Based Compensation  The following table summarizes share activity related to stock options and restricted stock awards (“RSAs”):    Stock Options Restricted Stock Awards  Options Outstanding/Nonvested RSAs, December 31, 2017 690 480  Granted 77 174  Options Exercised/RSAs Released (3) (70)  Forfeited (25) (21)  Options Outstanding/Nonvested RSAs, March 31, 2018 739 563       During the three months ended March 31, 2018, the Company granted 30,887 shares of performance-based restricted stock awards , vesting over three -year period, with a grant date fair value of approximately $0.7 million to certain members of senior management in connection with the achievement of specific key financial metrics. The number of awards that will ultimately vest is contingent upon the achievement of these key financial metrics by the end of year two. Once these amounts have been determined, half of the shares will vest at the end of year two and the remaining half will vest at the end of year three . These awards are included above in Restricted Stock Awards Granted.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Taxes [Abstract]
Income Taxes	Note 5 . Income Taxes  The Company has a full valuation allowance recorded against its net deferred tax assets which effectively offsets its federal taxes at the statutory rate of 21% . However , it does record tax expense each period for income taxes incurred in certain state and foreign jurisdictions. For the three months ended March 31, 2018 and 2017, the resulting effective tax rate was (11.6)% and (1.7)% , respectively.  The Tax Cuts and Jobs Act (H.R. 1) (the “Tax Act”) was enacted on December 22, 2017, which reduced the U.S. federal corporate tax rate from 35% to 21% and eliminated the 20 -year limit on the carryforward of losses, and resulted in the Company remeasuring its existing deferred tax balances in 2017. In addition, generally beginning in 2018, the Tax Act alters the deductibility of certain items (e.g., certain compensation, interest, entertainment expenses), and allows qualifying capital expenditures to be deducted fully in the year of purchase. As of March 31, 2018, the Company has completed an initial analysis of the tax effects of the Tax Act but continues to monitor developments by federal and state rulemaking authorities regarding implementation of the Act. The Company has made reasonable estimates of the effects of the Tax Act on its deferred tax balances based on current information, but may need to adjust as new guidance becomes available.  The Company intends to maintain a valuation allowance on its deferred tax assets until there is sufficient evidence to support the reversal of all or some portion of these allowances. A reduction in the valuation allowance could result in a significant decrease in income tax expense in the period that the release is recorded. However, the exact timing and amount of any reduction in the Company’s valuation allowance are unknown at this time and will be subject to the earnings level it achieves in future periods.  The Company files income tax returns with the U.S. federal government and various state and foreign jurisdictions. In the normal course of business, the Company is subject to examination by taxing authorities. During 2017, t he Internal Revenue Service completed audits of the Company’s income tax returns through 2016. 

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies [Abstract]
Commitments and Contingencies	N ote 6 . Commitments and Contingencies  Governmental Investigations  In 2015 and early 2016, the Company received subpoenas issued in connection with a criminal investigation being conducted by the U.S. Department of Justice (the “DOJ”) and the SEC. Based on the subpoenas and the Company’s discussions to date, the Company believes the focus of both investigations primarily relates to compliance with disclosure, financial reporting and trading requirements under the federal securities laws since 2011. The Company is fully cooperating with the investigations and continues to produce documents and other information responsive to the subpoenas and other requests received from the parties. Given that the investigations are still ongoing and that no civil or criminal claims have been brought to date, the Company cannot predict the outcome of the investigations, the timing of the ultimate resolution of these matters, or reasonably estimate the possible range of loss, if any, that may result from these matters. Accordingly, no accruals have been made with respect to these matters. Any action by the DOJ or SEC with respect to these matters could include civil or criminal proceedings and could involve fines, damage awards, regulatory consequences or other sanctions which could have a material adverse effect, individually or collectively, on the Company’s liquidity, financial condition or results of operations.   Litigation Relating to Chinese Laminates  On March 15, 2018 , the Company entered into a settlement agreement with the lead plaintiffs in the MDL (as defined in Part II – Item 1) and Abrasion MDL(as defined in Part II – Item 1), cases more fully described in the Company’s 2017 Annual Report on Form 10-K. Under the terms of the settlement agreement, which are consistent with the terms set forth in a previously disclosed memorandum of understanding, the Company has agreed to contribute $22 million in cash and provide $14 million in store-credit vouchers for an aggregate settlement of $36 million to settle all claims brought on behalf of purchasers of Chinese-made laminate flooring sold by the Company between January 1, 2009 and May 31, 2015. The Company may fund the $22 million through a combination of cash and/or common stock. The settlement agreement is subject to certain contingencies, including court approvals. There can be no assurance that the settlement agreement will be approved or as to the ultimate outcome of the litigation. If a final, court-approved settlement is not reached, the Company will defend the matter vigorously and believes there are meritorious defenses and legal standards that must be met for, among other things, class certification and success on the merits. The Company does not believe it has insurance coverage with respect to the MDL or the Abrasion MDL. The $36 million aggregate settlement amount was accrued in 2017.  In addition to those purchasers who elect to opt out of the above settlement (the “Opt Outs”) and the Steele class action lawsuit, more fully described in the Company’s 2017 Annual Report on Form 10-K, which is a similar case to the MDL in Canada, there are a number of individual claims and lawsuits alleging (i) damages due to excessive formaldehyde emissions, including personal injury claims, and (ii) damages similar to those in the Abrasion MDL (collectively, the “Other Matters”). Certain of these Other Matters were settled in the first quarter of 2018, while some are in advanced stages of settlement negotiations. The Company recognized a $1 million charge during the fourth quarter of 2017 and a $250 thousand charge in the first quarter of 2018 for these matters. For the remaining Other Matters, while the Company believes that a further loss associated with the Opt Outs, Other Matters and the Steele class action lawsuit is reasonably possible, the Company is unable to reasonably estimate the amount or range of possible loss. Any such losses could potentially have a material adverse effect, individually or collectively, on the Company’s results of operations, financial condition, and liquidity.  The Company has determined that probable losses have been incurred and has recognized charges to earnings within selling general and administrative expense during 2017 and the first quarter of 2018 . If the court does not approve the settlement agreement or if the Company incurs losses with the respect to the Opt Outs, Steele and Other Matters, the ultimate resolution of these actions could still have a material adverse effect on the Company’s results of operations, financial condition, and liquidity .  Gold Matter  Beginning in 2014, Dana Gold (“Gold”) filed a purported class action lawsuit alleging that certain bamboo flooring that the Company sells (the “Strand Bamboo Product”) is defective (the “Gold matter”). On February 13, 2015, Gold filed an amended complaint that added three additional plaintiffs (collectively with Gold, “Gold Plaintiffs”). Gold Plaintiffs did not quantify any alleged damages in their complaint but, in addition to attorneys’ fees and costs, Gold Plaintiffs seek a declaration that the Company’s actions violate the law and that it is financially responsible for notifying all purported class members, injunctive relief requiring the Company to replace and/or repair all of the Strand Bamboo Product installed in structures owned by the purported class members, and a declaration that the Company must disgorge, for the benefit of the purported classes, all or part of the profits received from the sale of the allegedly defective Strand Bamboo Product and/or to make full restitution to Gold Plaintiffs and the purported class members. The trial is currently scheduled to begin in February 2019.  In addition, there are a number of other claims and lawsuits alleging damages similar to those in the Gold matter. The Company disputes these and Gold Plaintiffs’ claims and intends to defend such matters vigorously. Given the uncertainty of litigation, the preliminary stage of the case, and the legal standards that must be met for success on the merits, the Company is unable to estimate the amount of loss, or range of possible loss, at this time that may result from this action. Any such losses could, potentially, have a material adverse effect, individually or collectively, on the Company’s results of operations, financial condition, and liquidity.  Employee Classification Matters  In the second half of 2017, certain former and current store managers, store managers in training, and similarly situated current and former employees holding comparable positions but different titles (collectively, the “SM Plaintiffs”) filed purported class action lawsuits in New York and California on behalf of all current and former store managers, store managers in training and similarly situated current and former employees holding comparable positions but different titles (collectively, the “SM Employees”), in both cases alleging that the Company violated the Fair Labor Standards Act and certain state laws by classifying the SM Employees as exempt. In both cases the SM Plaintiffs did not quantify any alleged damages but, in addition to attorneys’ fees and costs, the SM Plaintiffs seek class certification, unspecified amount for unpaid wages and overtime wages, liquidated and/or punitive damages, declaratory relief, restitution, statutory penalties, injunctive relief and other damages. The Company disputes the SM Plaintiffs’ claims and intends to defend both matters vigorously. Given the uncertainty of litigation, the preliminary stage of the case and the legal standards that must be met for, among other things, class certification and success on the merits, the Company is unable to estimate the amount of loss, or range of possible loss, at this time that may result from these actions and therefore no accrual has been made related to either of them. Any such losses could, potentially, have a material adverse effect, individually or collectively, on the Company’s results of operations, financial condition, and liquidity.  Antidumping and Countervailing D u ties Investigation  In O ctober 2010, a conglomerat i on of domestic manufactur e rs of multilayered wood flooring filed a p e tition se e k ing the imposition of a n tidumping ( “ AD”) and c o untervailing duti e s (“C V D ”) with the U n ited States D ep a rtment of Comm e rce (“DOC ” ) and the United St a tes Intern a tional Tr a d e Commis s i o n (“I T C”) a g a inst imports of multilayered wood flooring from China. T h is ruling applies to companies importing multilayered wood flooring from Chinese suppliers subject to the AD and CVD orders . The Company’s multilayered wood flooring imports from China ac c ounted for app r oximately 8% and 7% o f its fl o o ri n g purchases in 2017 and 2016 , respectively. The Company’s consistent view through the course of this matter has been, and remains, that its imports are neither dumped nor subsidized. As such, it has appealed the original imposition of AD and CVD fees.  As part of its p r o c esses in these procee d ing s , the DOC con d u c ts a n nual r eviews of the CVD and AD r ates. In such cases, the DOC will issue pr e liminary rat e s th a t are not binding and are subject to comment by inter e s t ed p a rties. Aft e r c o nsideration of the comm e n ts rece i ved, the D O C will issue f inal r a tes for the applicable pe r iod, which may lag by a year or more. At the time of import, the Company makes deposits at the then prevailing rate, even while the annual review is in process. When rates are declared final by the DOC, the Company accrues a receivable or payable depending on where that final rate compares to the deposits it has made. The Company and or the domestic manufacturers can appeal the final rate for any period and can place a hold on final settlement by U.S. Customs and Border Protection while the appeals are pending.  In addition to its overall appeal of the imposition of AD and CVD, which is still pending, the Company as well as other involved parties have appealed many of the final rate determinations. Those appeals are pending and, at times, have resulted in delays in settling the shortfalls and refunds in the table that follows. Because of the length of time for finalization of rates as well as appeals, any subsequent adjustment of CVD and AD rates typically flows through a period different from those in which the inventory was originally purchased and/or sold.  The first 5 -year Sunset Review of the antidumping and countervailing duty orders on multilayered wood flooring (the “Sunset Review”) began in November 2016 at the ITC to determine whether to terminate the orders. The Company participated fully in this Sunset Review. In December 2017, the ITC determined that the AD and CVD orders will remain in place. Results by period for the Company are shown below. The column labeled ‘March 31, 2018 Receivable/Liability Balance’ represents the amount the Company would receive or pay as the result of subsequent adjustment to rates whether due to finalization by DOC or because of action of a court based on appeals by various parties. It does not include any amounts paid for AD or CVD in the current period at the in-effect rate at that time.   Review Period Period Covered Rates at which Company Deposited Final Rate March 31, 2018 Receivable/Liability Balance Antidumping  1 May 2011 through November 2012 6.78% and 3.3% 5.92% $0.8 million liability 1  2 December 2012 through November 2013 3.30% 13.74% $4.1 million liability  3 December 2013 through November 2014 3.3% and 5.92% 17.37% $5.5 million liability  4 December 2014 through November 2015 5.92% and 13.74% 0.0% $2.1 million receivable  5 December 2015 through November 2016 5.92% , 13.74% , and 17.37% Pending but preliminary determination was 0.0% NA  6 December 2016 through November 2017 17.37% and 0.0% Pending NA  7 December 2017 through November 2018 0.0% Pending NA  Countervailing  1&2 April 2011 through December 2012 1.50% 0.83% / 0.99% $0.2 million receivable  3 January 2013 through December 2013 1.50% 1.38% $.05 million receivable  4 January 2014 through December 2014 1.50% and 0.83% 1.06% $.02 million receivable  5 January 2015 through December 2015 0.83% and 0.99% Pending but preliminary determination was 0.89% NA  6 January 2016 through December 2016 0.99% and 1.38% Pending NA  7 January 2017 through December 2017 1.38% and 1.06% Pending NA  8 January 2018 through December 2018 1.06% Pending NA  1 DOC has recommended reducing the rate for the first annual review period to 0.73% (from 5.92% ) through remand. The court had not yet accepted this recommendation as of March 31, 2018. Should this rate hold through the appeal process, Lumber Liquidators would reverse the $0.8 million liability and record a receivable.  Oth e r Matters  The Company is also, from time to time, subject to claims and disputes arising in the normal course of business. In the opinion of management, while the outcome of any such claims and disputes cannot be predicted with certainty, its ultimate liability in connection with these matters is not expected to have a material adverse effect on the Company’s results of operations, financial position or liquidity.

Summary of Significant Accoun13

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Summary of Significant Accounting Policies [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The carrying amounts of financial instruments such as cash and cash equivalents, accounts payable and other liabilities approximates fair value because of the short-term nature of these items. The carrying amount of obligations under the revolving credit facility approximates fair value due to the variable rate of interest.
Merchandise Inventories	Merchandise Inventories The Company values merchandise inventories at the lower of merchandise cost or net realizable value. The Company periodically reviews the carrying value of items in inventory and records a lower of cost or net realizable value adjustment when there is evidence that the utility of inventory will be less than its cost. In determining market value, the Company makes judgments and estimates as to the market value of its products, based on factors such as historical results and current sales trends. Although the Company believes its products are appropriately valued as of the balance sheet date, there can be no assurance that future events or changes in key assumptions would not significantly impact their value.
Recognition of Net Sales	Recognition of Net Sales In May 2014, the FASB issued Accounting Standards Update No. 2014-09 (“Topic 606”), Revenue from Contracts with Customers , which supersedes the revenue recognition requirements in Topic 605, Revenue Recognition , including most industry-specific revenue recognition guidance. The core principle of Topic 606 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and when control of those goods and services has passed to the customer. The Company adopted Topic 606 as of January 1, 2018 using the modified retrospective transition method. However, because adoption of the standard did not change the timing or amount of the Company’s recognition of revenue and because the Company does not recognize revenues for partial contracts, there was no adjustment to retained earnings needed as part of the adoption of the new standard. The Company generates revenues primarily by retailing merchandise in the form of hardwood and wood-look flooring and accessories. Additionally, the Company expands its revenues by offering services to deliver and/or install this merchandise for its customers; it considers these services to be separate performance obligations. The separate performance obligations are detailed on the customer’s invoice(s) and the customer often purchases flooring merchandise without purchasing installation or delivery services. Sales occur through a network of 398 stores spanning 46 states including eight stores in Canada. In addition, both the merchandise and services can be ordered through a call center and from the Company’s website, www.lumberliquidators.com . The Company’s agreements with its customers are of short duration (less than a year) and as such the Company has elected not to disclose revenue for partially satisfied contracts that will be completed in the days following the end of a period as permitted by GAAP. The Company reports its revenues exclusive of sales taxes collected from customers and remitted to governmental taxing authorities, consistent with past practice. Revenue is based on consideration specified in a contract with a customer, and excludes any sales incentives from vendors and amounts collected on behalf of third parties. The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product to a customer or performing service for a customer. Revenues from installation and freight services are recognized when the delivery is made or the installation is complete, which approximates the recognition of revenue over time due to the short duration of service provided. The price of the Company’s merchandise and services are specified in the contract and detailed on the invoice agreed to with the customer including any discounts. The Company generally requires customers to pay a deposit, equal to approximately half of the retail sales value, when ordering merchandise not regularly carried in a given location or not currently in stock. In addition, the Company generally does not extend credit to its customers with payment due in full at the time the customer takes possession of merchandise or when the service is provided. Customer payments and deposits received in advance of the customer taking possession of the merchandise or receiving the services are recorded as deferred revenues in the accompanying condensed consolidated balance sheet caption Customer Deposits and Store Credits. The following table shows the activity in this account during the period:    Three Months Ended March 31, 2018 Three Months Ended March 31, 2017  Customer Deposits and Store Credits, Beginning Balance $ (38,546) $ (32,639)  New Deposits (285,522) (277,279)  Recognition of Revenue 261,772 248,389  Sales Tax included in Customer Deposits 16,605 16,199  Other 2,198 3,203  Customer Deposits and Store Credits, Ending Balance $ (43,493) $ (42,127)  Subject to limitations under the Company’s policy, return of unopened merchandise is accepted for 30 days. The amount of revenue recognized for flooring merchandise is adjusted for expected returns, which are estimated based on the Company’s historical data, current sales levels, and forecasted economic trends. The Company uses the expected value method to estimate returns because it has a large number of contracts with similar characteristics. The Company previously recognized revenue in full, recorded an allowance for expected returns (contra-revenue), and recorded a separate refund liability for expected returns. The Company reduces revenue by the amount of expected returns and records it within accrued expenses and other on the condensed consolidated balance sheet. The Company continues to estimate the amount of returns based on the historical data. In addition, the Company recognizes a related asset for the right to recover returned merchandise and records it in the Other Current Assets caption of the accompanying condensed consolidated balance sheet. This amount was $1.2 million at March 31, 2018. The Company recognizes sales commissions as incurred since the amortization period is less than one year. The Company offers a range of limited warranties for the durability of the finish on its prefinished products. These limited warranties range from one to 100 years, with lifetime warranties for certain of the Company’s products. Warranty reserves are based primarily on claims experience, sales history and other considerations. Warranty costs are recorded in cost of sales. These costs are included in Selling, General, and Administrative Expenses on the condensed consolidated statements of operations. In total, we offer hundreds of different flooring products; however, no single flooring product represented a significant portion of our sales mix. By major product category, our sales mix was as follows:     Three Months Ended March 31, 2018 Three Months Ended March 31, 2017   Solid and Engineered Hardwood, Bamboo and Cork $ 96,684 37% $ 109,054 44%  Manufactured Products 1 90,929 35% 72,901 29%  Moldings and Accessories and Other 48,896 19% 49,043 20%  Installation and Delivery Services 25,263 9% 17,391 7%  Total $ 261,772 100% $ 248,389 100%   1 Includes laminate, vinyl, engineered vinyl plank and wood-look ceramic tile.  
Cost of Sales	Cost of Sales  Cost of sales includes the cost of the product sold, cost of installation services, transportation costs from vendor to the Company’s distribution centers or store locations, any applicable finishing costs related to production of the Company’s proprietary brands, transportation costs from distribution centers to store locations, transportation costs for the delivery of products from store locations to customers, certain costs of quality control procedures, warranty and customer satisfaction costs, inventory adjustments including shrinkage, and costs to produce samples, reduced by vendor allowances.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Not Yet Adopted  In February 2016, the FASB issued Accounting Standards Update No. 2016-02 (“ASU 2016-02”), which creates ASC Topic 842, Leases , and supersedes the lease accounting requirements in Topic 840, Leases . In summary, Topic 842 requires organizations that lease assets — referred to as “lessees” — to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. The amendments in ASU 2016-02 are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Therefore, the new standard will become effective for the Company at the beginning of its 2019 fiscal year. The Company is currently assessing the impact of implementing the new guidance on its consolidated financial statements including educating employees of the breadth of the new standard, evaluating software solutions to track leases, identifying all leases including reviewing contracts for potential embedded leases. The Company is monitoring the FASB’s recent deliberations surrounding a simplified transition approach and is evaluating the practical expedients provided by that approach as well as those already included the standard. When implemented, the standard is expected to have a material impact as operating leases will be recognized on the Company’s consolidated balance sheet.

Summary of Significant Accoun14

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2018
Summary of Significant Accounting Policies [Abstract]
Schedule of Deferred Revenues	The following table shows the activity in this account during the period:    Three Months Ended March 31, 2018 Three Months Ended March 31, 2017  Customer Deposits and Store Credits, Beginning Balance $ (38,546) $ (32,639)  New Deposits (285,522) (277,279)  Recognition of Revenue 261,772 248,389  Sales Tax included in Customer Deposits 16,605 16,199  Other 2,198 3,203  Customer Deposits and Store Credits, Ending Balance $ (43,493) $ (42,127)  
Sales Mix by Major Product	In total, we offer hundreds of different flooring products; however, no single flooring product represented a significant portion of our sales mix. By major product category, our sales mix was as follows:     Three Months Ended March 31, 2018 Three Months Ended March 31, 2017   Solid and Engineered Hardwood, Bamboo and Cork $ 96,684 37% $ 109,054 44%  Manufactured Products 1 90,929 35% 72,901 29%  Moldings and Accessories and Other 48,896 19% 49,043 20%  Installation and Delivery Services 25,263 9% 17,391 7%  Total $ 261,772 100% $ 248,389 100%   1 Includes laminate, vinyl, engineered vinyl plank and wood-look ceramic tile.  

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2018
Stockholders' Equity [Abstract]
Computation of Basic and Diluted Net Income (Loss) Per Common Share	The following table sets forth the computation of basic and diluted net loss per common share:     Three Months Ended  March 31,  2018 2017  Net Loss $ (1,972) $ (26,372)  Weighted Average Common Shares Outstanding—Basic 28,508 28,292  Effect of Dilutive Securities:  Common Stock Equivalents — —  Weighted Average Common Shares Outstanding—Diluted 28,508 28,292  Net Loss per Common Share—Basic $ (0.07) $ (0.93)  Net Loss per Common Share—Diluted $ (0.07) $ (0.93) 
Anti-Dilutive Securities Excluded from Computation of Weighted Average Common Shares Outstanding-Diluted	The following shares have been excluded from the computation of Weighted Average Common Shares Outstanding—Diluted because the effect would be anti-dilutive:     Three Months Ended March 31,  2018 2017  Stock Options 688 769  Restricted Shares 347 469 

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2018
Stock-Based Compensation [Abstract]
Summary of Activity Related to Stock Options and Restricted Stock Awards	The following table summarizes share activity related to stock options and restricted stock awards (“RSAs”):    Stock Options Restricted Stock Awards  Options Outstanding/Nonvested RSAs, December 31, 2017 690 480  Granted 77 174  Options Exercised/RSAs Released (3) (70)  Forfeited (25) (21)  Options Outstanding/Nonvested RSAs, March 31, 2018 739 563  

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies [Abstract]
Schedule of Other Commitments	Results by period for the Company are shown below. The column labeled ‘March 31, 2018 Receivable/Liability Balance’ represents the amount the Company would receive or pay as the result of subsequent adjustment to rates whether due to finalization by DOC or because of action of a court based on appeals by various parties. It does not include any amounts paid for AD or CVD in the current period at the in-effect rate at that time.   Review Period Period Covered Rates at which Company Deposited Final Rate March 31, 2018 Receivable/Liability Balance Antidumping  1 May 2011 through November 2012 6.78% and 3.3% 5.92% $0.8 million liability 1  2 December 2012 through November 2013 3.30% 13.74% $4.1 million liability  3 December 2013 through November 2014 3.3% and 5.92% 17.37% $5.5 million liability  4 December 2014 through November 2015 5.92% and 13.74% 0.0% $2.1 million receivable  5 December 2015 through November 2016 5.92% , 13.74% , and 17.37% Pending but preliminary determination was 0.0% NA  6 December 2016 through November 2017 17.37% and 0.0% Pending NA  7 December 2017 through November 2018 0.0% Pending NA  Countervailing  1&2 April 2011 through December 2012 1.50% 0.83% / 0.99% $0.2 million receivable  3 January 2013 through December 2013 1.50% 1.38% $.05 million receivable  4 January 2014 through December 2014 1.50% and 0.83% 1.06% $.02 million receivable  5 January 2015 through December 2015 0.83% and 0.99% Pending but preliminary determination was 0.89% NA  6 January 2016 through December 2016 0.99% and 1.38% Pending NA  7 January 2017 through December 2017 1.38% and 1.06% Pending NA  8 January 2018 through December 2018 1.06% Pending NA  1 DOC has recommended reducing the rate for the first annual review period to 0.73% (from 5.92% ) through remand. The court had not yet accepted this recommendation as of March 31, 2018. Should this rate hold through the appeal process, Lumber Liquidators would reverse the $0.8 million liability and record a receivable. 

Basis of Presentation (Narrativ

Basis of Presentation (Narrative) (Detail)	Mar. 31, 2018storestateterritory
Basis of Presentation [Abstract]
Number of States in which Stores Operates | state	46
Number of Stores | store	398
Number of Canadian Stores | territory	8

Summary of Significant Accoun19

Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)storestateterritory
Summary of Significant Accounting Policies [Abstract]
Number of Stores | store	398
Number of States in which Entity Operates | state	46
Number of Canadian Stores | territory	8
Minimum years of product warranty	1 year
Maximum years of product warranty	100 years
Product warranty reserve | $	$ 1.2
Maximum amortization period for sales commissions	1 year

Summary of Significant Accoun20

Summary of Significant Accounting Policies (Schedule of Deferred Revenues) (Details) - Customer Deposits and Store Credits [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Deferred Revenue Arrangement [Line Items]
Customer Deposits and Store Credits, Beginning Balance	$ (38,546)	$ (32,639)
New Deposits	(285,522)	(277,279)
Recognition of Revenue	261,772	248,389
Sales Tax included in Customer Deposits	16,605	16,199
Other	2,198	3,203
Customer Deposits and Store Credits, Ending Balance	$ (43,493)	$ (42,127)

Summary of Significant Accoun21

Summary of Significant Accounting Policies (Sales Mix by Major Product) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Product Information [Line Items]
Net sales	$ 261,772	$ 248,389
Percent of sales	100.00%	100.00%
Solid and Engineered Hardwood, Bamboo and Cork[Member]
Product Information [Line Items]
Net sales	$ 96,684	$ 109,054
Percent of sales	37.00%	44.00%
Manufactured Products [Member]
Product Information [Line Items]
Net sales	$ 90,929	$ 72,901
Percent of sales	35.00%	29.00%
Moldings and Accessories and Other [Member]
Product Information [Line Items]
Net sales	$ 48,896	$ 49,043
Percent of sales	19.00%	20.00%
Installation and Delivery Services [Member]
Product Information [Line Items]
Net sales	$ 25,263	$ 17,391
Percent of sales	9.00%	7.00%

Stockholders' Equity (Narrative

Stockholders' Equity (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stockholders' Equity [Abstract]
Stock Repurchase Program, Authorized Amount	$ 150
Common Stock Repurchased, Remaining Authorized Amount	$ 14.7
Treasury Stock, Shares, Acquired	0	0	0

Stockholders' Equity (Computati

Stockholders' Equity (Computation of Basic and Diluted Net Income Per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity [Abstract]
Net Income (Loss)	$ (1,972)	$ (26,372)
Weighted Average Common Shares Outstanding-Basic	28,508	28,292
Effect of Dilutive Securities:
Common Stock Equivalents
Weighted Average Common Shares Outstanding-Diluted	28,508	28,292
Net Loss per Common Share-Basic	$ (0.07)	$ (0.93)
Net Loss per Common Share-Diluted	$ (0.07)	$ (0.93)

Stockholders' Equity (Anti-Dilu

Stockholders' Equity (Anti-Dilutive Securities Excluded from Computation of Weighted Average Common Shares Outstanding-Diluted) (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earning per share	688	769
Restricted Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earning per share	347	469

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - Management [Member] - Performance-Base Restricted Stock Awards [Member] $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Awards granted | shares	30,887
Share-based compensation terms	The number of awards that will ultimately vest is contingent upon the achievement of these key financial metrics by the end of year two. Once these amounts have been determined, half of the shares will vest at the end of year two and the remaining half will vest at the end of year three
Grant date fair value of awards | $	$ 0.7
Vesting period of grants	3 years
Share-based Compensation Award, Tranche One [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Percentage of awards vested	50.00%
Vesting period of grants	2 years
Share-based Compensation Award, Tranche Two [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Percentage of awards vested	50.00%
Vesting period of grants	3 years

Stock-Based Compensation (Summa

Stock-Based Compensation (Summarizes Share Activity Related to Stock Options and Restricted Stock Awards) (Details)	3 Months Ended
	Mar. 31, 2018shares
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance	690
Granted	77
Options Exercised/RSAs Released	(3)
Forfeited	(25)
Ending Balance	739
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance	480
Granted	174
Options Exercised/RSAs Released	(70)
Forfeited	(21)
Ending Balance	563

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details)	Dec. 31, 2017	Dec. 21, 2017	Mar. 31, 2018	Mar. 31, 2017
Income Taxes [Abstract]
Effective tax rate			(11.60%)	(1.70%)
Statutory rate	21.00%	35.00%	21.00%

Commitments and Contingencies28

Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Loss Contingencies [Line Items]
Environmental Compliance Plan, Outside Audit Period		5 years
Antidumping Duties [Member]
Loss Contingencies [Line Items]
Loss Contingency Multilayered Hardwood Products Purchase Percentage				8.00%	7.00%
Litigation Relating to Formaldehyde Abrasion MDL's [Member]
Loss Contingencies [Line Items]
Settlement Agreement Date		March 15, 2018
Litigation Settlement, Amount	$ 36,000			$ 36,000
Litigation Settlement, Expense		$ 250	$ 1,000
Cash and or Common Stock [Member] | Litigation Relating to Formaldehyde Abrasion MDL's [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount	22,000
In Store Credit [Member] | Litigation Relating to Formaldehyde Abrasion MDL's [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount	$ 14,000

Commitments and Contingencies29

Commitments and Contingencies (Schedule of Other Commitments) (Details) - USD ($) $ in Thousands

3 Months Ended

4 Months Ended

12 Months Ended

19 Months Ended

21 Months Ended

Mar. 31, 2018

Mar. 31, 2018

Dec. 31, 2017

Nov. 30, 2017

Dec. 31, 2016

Nov. 30, 2016

Dec. 31, 2015

Nov. 30, 2015

Dec. 31, 2014

Nov. 30, 2014

Dec. 31, 2013

Nov. 30, 2013

Nov. 30, 2012

Dec. 31, 2012

Antidumping Duties [Member] | First Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Antidumping Duty Rate, Maximum

5.92%

Contingent Liability

$ 800

$ 800

Antidumping Duties [Member] | First Annual Review [Member] | Scenario, Plan [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Antidumping Duty Rate, Maximum

0.73%

Contingent Liability, Period Increase (Decrease)

$ (800)

Antidumping Duties [Member] | Second Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

3.30%

Loss Contingency Modified Purchase Price Of Antidumping Duty Rate, Maximum

13.74%

Contingent Liability

4,100

4,100

Antidumping Duties [Member] | Third Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Antidumping Duty Rate, Maximum

17.37%

Contingent Liability

5,500

5,500

Antidumping Duties [Member] | Fourth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Antidumping Duty Rate, Maximum

0.00%

Contingent Receibable

2,100

$ 2,100

Antidumping Duties [Member] | Fith Annual Review [Member] | Scenario, Plan [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Antidumping Duty Rate, Maximum

0.00%

Antidumping Duties [Member] | Seventh Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

0.00%

Countervailing Duties [Member] | First and Second Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

1.50%

Contingent Receibable

200

$ 200

Countervailing Duties [Member] | Third Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

1.50%

Loss Contingency Modified Purchase Price Of Countervailing Duties Rate, Maximum

1.38%

Contingent Receibable

50

50

Countervailing Duties [Member] | Fourth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Countervailing Duties Rate, Maximum

1.06%

Contingent Receibable

$ 20

$ 20

Countervailing Duties [Member] | Fith Annual Review [Member] | Scenario, Plan [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Countervailing Duties Rate, Maximum

0.89%

Countervailing Duties [Member] | Eighth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

1.06%

Deposit One [Member] | Antidumping Duties [Member] | First Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

6.78%

Deposit One [Member] | Antidumping Duties [Member] | Third Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

3.30%

Deposit One [Member] | Antidumping Duties [Member] | Fourth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

5.92%

Deposit One [Member] | Antidumping Duties [Member] | Fith Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

5.92%

Deposit One [Member] | Antidumping Duties [Member] | Sixth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

17.37%

Deposit One [Member] | Countervailing Duties [Member] | First and Second Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Countervailing Duties Rate, Maximum

0.83%

Deposit One [Member] | Countervailing Duties [Member] | Fourth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

1.50%

Deposit One [Member] | Countervailing Duties [Member] | Fith Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

0.83%

Deposit One [Member] | Countervailing Duties [Member] | Sixth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

0.99%

Deposit One [Member] | Countervailing Duties [Member] | Seventh Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

1.38%

Deposit Two [Member] | Antidumping Duties [Member] | First Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

3.30%

Deposit Two [Member] | Antidumping Duties [Member] | Third Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

5.92%

Deposit Two [Member] | Antidumping Duties [Member] | Fourth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

13.74%

Deposit Two [Member] | Antidumping Duties [Member] | Fith Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

13.74%

Deposit Two [Member] | Antidumping Duties [Member] | Sixth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

0.00%

Deposit Two [Member] | Countervailing Duties [Member] | First and Second Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Modified Purchase Price Of Countervailing Duties Rate, Maximum

0.99%

Deposit Two [Member] | Countervailing Duties [Member] | Fourth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

0.83%

Deposit Two [Member] | Countervailing Duties [Member] | Fith Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

0.99%

Deposit Two [Member] | Countervailing Duties [Member] | Sixth Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

1.38%

Deposit Two [Member] | Countervailing Duties [Member] | Seventh Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Countervailing Duties Rate

1.06%

Deposit Three [Member] | Antidumping Duties [Member] | Fith Annual Review [Member]

Loss Contingencies [Line Items]

Loss Contingency Purchase Price Of Antidumping Duty Rate

17.37%