Armstrong Flooring (AFIIQ) 10-K 10 Mar 20 2019 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Feb. 28, 2020	Jun. 30, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-37589
Entity Registrant Name	ARMSTRONG FLOORING, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-4303305
Entity Address, Address Line One	2500 Columbia Avenue,
Entity Address, City or Town	Lancaster,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	17603
City Area Code	(717)
Local Phone Number	672-9611
Title of 12(b) Security	Common Stock, $0.0001 par value
Trading Symbol	AFI
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Public Float			$ 129.9
Entity Common Stock, Shares Outstanding		21,520,225
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Central Index Key	0001655075
Current Fiscal Year End Date	--12-31

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net sales	$ 626.3	$ 728.2	$ 704.1
Cost of goods sold	541	585	553
Gross profit	85.3	143.2	151.1
Selling, general and administrative expenses	146.4	160.6	163.8
Operating (loss)	(61.1)	(17.4)	(12.7)
Interest expense	4.4	4.8	2.7
Other expense, net	1.8	2.9	3.7
(Loss) from continuing operations before income taxes	(67.3)	(25.1)	(19.1)
Income tax expense (benefit)	1.6	(6)	(2)
(Loss) from continuing operations	(68.9)	(19.1)	(17.1)
Earnings (loss) from discontinued operations, net of tax	0	9.9	(24.7)
Gain (loss) on disposal of discontinued operations, net of tax	10.4	(153.8)	0
Net earnings (loss) from discontinued operations	10.4	(143.9)	(24.7)
Net (loss)	$ (58.5)	$ (163)	$ (41.8)
Basic (loss) per share of common stock:
Basic (loss) per share of common stock from continuing operations (in dollars per share)	$ (2.85)	$ (0.73)	$ (0.63)
Basic (loss) earnings per share of common stock from discontinued operations (in dollars per share)	0.43	(5.54)	(0.91)
Basic (loss) earnings per share of common stock (in dollars per share)	(2.42)	(6.27)	(1.54)
Diluted (loss) per share of common stock:
Diluted (loss) per share of common stock from continuing operations (in dollars per share)	(2.85)	(0.73)	(0.63)
Diluted (loss) earnings per share of common stock from discontinued operations (in dollars per share)	0.43	(5.54)	(0.91)
Diluted (loss) earnings per share of common stock (in dollars per share)	$ (2.42)	$ (6.27)	$ (1.54)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash	$ 27.1	$ 173.8
Accounts and notes receivable, net	36.1	39
Inventories, net	111.6	139.5
Income tax receivable	0.7	0.6
Prepaid expenses and other current assets	10	18
Total current assets	185.5	370.9
Property, plant and equipment, less accumulated depreciation and amortization of $318.4 and $318.8, respectively	277.2	296.1
Operating lease assets	6
Intangible assets, less accumulated amortization of $19.0 and $12.0, respectively	25.4	32
Deferred income taxes	5.3	5.6
Other noncurrent assets	2.8	3.6
Total assets	502.2	708.2
Current liabilities:
Short-term debt	0	25
Current installments of long-term debt	0.2	3.7
Accounts payable and accrued expenses	104.4	141.4
Income tax payable	0	0.5
Total current liabilities	104.6	170.6
Long-term debt	42.5	70.6
Noncurrent operating lease liabilities	2.7	0
Postretirement benefit liabilities	59.7	55.7
Pension benefit liabilities	16	11.3
Other long-term liabilities	5.8	6.7
Noncurrent income taxes payable	0.2	0.2
Deferred income taxes	2.4	2.1
Total liabilities	233.9	317.2
Stockholders' equity:
Common stock with par value $.0001 per share: 100,000,000 shares authorized; 28,357,658 issued and 21,519,761 outstanding shares as of December 31, 2019 and 28,284,358 issued and 25,832,193 outstanding shares as of December 31, 2018	0	0
Preferred stock with par value $.0001 per share: 15,000,000 shares authorized; none issued	0	0
Treasury stock, at cost, 6,837,897 shares as of December 31, 2019 and 2,452,165 shares as of December 31, 2018	(88.9)	(39.7)
Additional paid-in capital	676.7	678.6
Accumulated deficit	(244.8)	(186.3)
Accumulated other comprehensive (loss)	(74.7)	(61.6)
Total stockholders' equity	268.3	391
Total liabilities and stockholders' equity	$ 502.2	$ 708.2

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Property Plant and equipment, accumulated depreciation and amortization	$ 318.4	$ 318.8
Intangible assets, accumulated amortization	$ 19	$ 12
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	28,357,658	28,284,358
Common stock, shares outstanding (in shares)	21,519,761	25,832,193
Preferred stock, par value (in dollars per share)	$ 0.0001
Preferred stock, shares authorized (in shares)	15,000,000
Treasury stock (in shares)	6,837,897	2,452,165

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Treasury Stock	Net AWI Investment	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Accumulated Deficit)
Beginning balance at Dec. 31, 2016	$ 623.5	$ 0	$ 0	$ 0	$ 673.3	$ (59.8)	$ 10
Beginning balance (in shares) at Dec. 31, 2016		27,895,671	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(41.8)			0			(41.8)
Net transfers (to) AWI	(0.8)			(0.8)		0
Repurchase of common stock				0
Reclassification of net parent investment to additional paid-in capital	0			0.8	(0.8)
Repurchase of common stock	(40)		$ (40)
Repurchase of common stock (in shares)		(2,455,604)	2,455,604
Stock-based employee compensation, net	1.8		$ 0.1		1.7
Stock-based employee compensation, net (in shares)		294,155	(6,608)
Other comprehensive (loss)	7.3					7.3
Ending balance at Dec. 31, 2017	550	$ 0	$ (39.9)	0	674.2	(52.5)	(31.8)
Ending balance (in shares) at Dec. 31, 2017		25,734,222	2,448,996
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adoption on ASU 2018-02 related to tax reform as of January 1 | ASU 2018-02						(12.6)	12.6
Beginning balance at Dec. 31, 2017	550	$ 0	$ (39.9)	0	674.2	(52.5)	(31.8)
Beginning balance (in shares) at Dec. 31, 2017		25,734,222	2,448,996
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(163)						(163)
Repurchase of common stock	(1)		$ (1)
Repurchase of common stock (in shares)		(69,353)	69,353
Stock-based employee compensation, net	5.6		$ 1.2		4.4
Stock-based employee compensation, net (in shares)		167,324	(66,184)
Other comprehensive (loss)	3.5					3.5
Ending balance at Dec. 31, 2018	391	$ 0	$ (39.7)	0	678.6	(61.6)	(186.3)
Ending balance (in shares) at Dec. 31, 2018		25,832,193	2,452,165
Increase (Decrease) in Stockholders' Equity [Roll Forward]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	(4.1)						(4.1)
Net (loss)	(58.5)						(58.5)
Repurchase of common stock	(51.4)		$ (51.4)
Repurchase of common stock (in shares)		(4,504,504)	4,504,504
Stock-based employee compensation, net	0.3		$ 2.2		(1.9)
Stock-based employee compensation, net (in shares)		192,072	(118,772)
Other comprehensive (loss)	(13.1)					(13.1)
Ending balance at Dec. 31, 2019	$ 268.3	$ 0	$ (88.9)	$ 0	$ 676.7	$ (74.7)	$ (244.8)
Ending balance (in shares) at Dec. 31, 2019		21,519,761	6,837,897

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net (loss)	$ (58.5)	$ (163)	$ (41.8)
Adjustments to reconcile net (loss) to net cash provided by operating activities:
Depreciation and amortization	50.7	55.1	78.7
(Gain) loss on disposal of discontinued operations	(10.4)	153.8	0
Intangible asset impairment	0	0	12.5
Inventory Write-down	13.6	0	0
Deferred income taxes	1.1	2.4	(3)
Stock-based compensation	1.2	5.4	2.2
U.S. pension expense	5.6	6.8	8.9
Write off of debt financing costs	0.8	0.6	0
Other non-cash adjustments, net	0.2	(0.8)	(0.6)
Changes in operating assets and liabilities:
Receivables	2.9	16.3	(2.5)
Inventories	14.1	(39.4)	30.4
Accounts payable and accrued expenses	(26)	16.8	(10.5)
Income taxes payable and receivable	(0.5)	2.8	(3)
Other assets and liabilities	(0.8)	5.7	(8.4)
Net cash (used for) provided by operating activities	(6)	62.5	62.9
Cash flows from investing activities:
Purchases of property, plant and equipment	(28.9)	(35.3)	(44.8)
Post Closing Expense on Divestiture of Business	(1.9)
Net (payments) proceeds related to sale of discontinued operations		90.2	0
Proceeds from the sale of assets	1.4	5.7	0.4
Cash paid for acquisition	0	0	(36.1)
Net cash (used for) provided by investing activities	(29.4)	60.6	(80.5)
Cash flows from financing activities:
Proceeds from revolving credit facility	47.2	82	90
Payments on revolving credit facility	(30)	(142)	(25)
Issuance of long-term debt	0	75	0
Payments of long-term debt	(75.3)	0	0
Financing costs	(0.8)	(0.7)	0
Payments on capital lease	0	(0.2)	(0.2)
Purchases of treasury stock	(51.4)	(1)	(40)
Proceeds from exercised stock options	0.1	0.8	1.4
Value of shares withheld related to employee tax withholding	(0.9)	(0.6)	(1.8)
Net cash provided by financing activities	(111.1)	13.3	24.4
Effect of exchange rate changes on cash and cash equivalents	(0.2)	(1.6)	1.6
Net increase in cash and cash equivalents	(146.7)	134.8	8.4
Cash and cash equivalents at beginning of year	173.8	39	30.6
Cash and cash equivalents at end of year	27.1	173.8	39
Cash and cash equivalents at end of year from discontinued operations	0	0	(1.1)
Cash and cash equivalents at end of year of continuing operations	27.1	173.8	40.1
Supplemental Cash Flow Disclosure:
Amounts in accounts payable for capital expenditures	5.6	8.5	7.8
Interest Paid, Excluding Capitalized Interest, Operating Activities	3.1	3.4	2.8
Income taxes (refunded) paid, net	$ 1	$ (1.4)	$ (2.8)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) Statement - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net (loss)	$ (58.5)	$ (163)	$ (41.8)
Changes in other comprehensive (loss), net of tax:
Foreign currency translation adjustments	(2.2)	(6)	7.2
Derivatives (loss) gain	(1.4)	1.7	(1.5)
Pension and postretirement adjustments	(9.5)	7.8	1.6
Other comprehensive income (loss)	(13.1)	3.5	7.3
Total comprehensive (loss)	$ (71.6)	$ (159.5)	$ (34.5)

Business And Basis of Presentat

Business And Basis of Presentation	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Basis of Presentation	BUSINESS AND BASIS OF PRESENTATION Business Armstrong Flooring, Inc. ("AFI") is a leading global producer of resilient flooring products for use primarily in the construction and renovation of residential, commercial and institutional buildings. AFI designs, manufactures, sources and sells resilient flooring products in North America and the Pacific Rim. When we refer to "AFI," "the Company," "we," "our," and "us" in this report, we are referring to Armstrong Flooring, Inc., a Delaware corporation, and its consolidated subsidiaries. Former Parent Separation On April 1, 2016, we became an independent company as a result of the separation by Armstrong World Industries, Inc. ("AWI"), a Pennsylvania corporation, of its Resilient Flooring and Wood Flooring segments from its Building Products segment (the "Separation"). The Separation was effected by allocating the assets and liabilities related primarily to the Resilient Flooring and Wood Flooring segments to AFI and then distributing the common stock of AFI to AWI’s shareholders (the "Distribution"). The Separation and Distribution (together, the "Spin-off") resulted in AFI and AWI becoming two independent, publicly traded companies, with AFI owning and operating the Resilient Flooring and Wood Flooring segments and AWI continuing to own and operate a ceilings business. Discontinued Operations

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Consolidation Policy The Consolidated Financial Statements and accompanying data in this report include the accounts of AFI and its subsidiaries. All significant intercompany transactions have been eliminated from the Consolidated Financial Statements. Use of Estimates We prepare our financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"), which requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets, liabilities, revenues and expenses. When preparing an estimate, management determines the amount based upon the consideration of relevant internal and external information. Actual results may differ from these estimates. Revenue Recognition We recognize revenue when control of the promised goods is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. Our primary performance obligation to our customers is the delivery of flooring products pursuant to purchase orders. Control of the products we sell transfers to our customers at the point in time when the goods are shipped. Our standard sales terms are primarily Free On Board (“FOB”) shipping point. Our typical payment terms are 30 days and our sales arrangements do not contain any significant financing component for our customers. Our customer arrangements do not generate contract assets or liabilities that are material to the Consolidated Financial Statements. Each purchase order sets forth the transaction price for the products purchased under that arrangement. Some customer arrangements include variable consideration, such as volume rebates, some of which depend upon our customers meeting specified performance criteria, such as a purchasing level over a period of time. We use judgment to estimate the most likely amount of variable consideration at each reporting date. We generally do not incur any incremental costs to obtain or fulfill our customer contracts that require capitalization and expense such costs as incurred when the amortization period is less than one year. We disaggregate revenue based on customer geography as this category represents the most appropriate depiction of how the nature, timing and uncertainty of revenues and cash flows are impacted by economic factors. See Note 3 to the Consolidated Financial Statements for our revenues disaggregated by geography. Warranties We provide our customers with a product warranty that provides assurance that the products we sell meet standard specifications and are free of defects. We maintain a reserve for claims incurred under our standard product warranty programs. We allocate a portion of the transaction price for each sale to our performance obligation to provide service type warranties to our customers. Sales Incentives Sales incentives to customers are reflected as a reduction of net sales. Shipping and Handling Costs We treat shipping and handling that occurs after our customer obtains control of the products as a fulfillment activity and not as a promised service. Shipping and handling costs are reflected as a component of cost of goods sold. Advertising Costs We recognize advertising expenses as they are incurred. Pension and Postretirement Benefits We have benefit plans that provide for pension, medical and life insurance benefits to certain eligible employees when they retire from active service. The cost of plan amendments that provide for benefits already earned by plan participants is amortized over the expected future working lifetime or the life expectancy of plan participants. A market-related value of plan assets methodology is utilized in the calculation of expected return on assets. The methodology recognizes gains and losses on long duration bonds immediately, while gains and losses on other assets are recognized in the calculation over a five-year period. We use a December 31 measurement date for our pension and postretirement benefit plans. Taxes The provision for income taxes has been determined using the asset and liability approach of accounting for income taxes to reflect the expected future tax consequences of events recognized in the financial statements. Deferred income tax assets and liabilities are recognized by applying enacted tax rates to temporary differences that exist as of the balance sheet date which result from differences in the timing of reported taxable income between tax and financial reporting. We reduce the carrying amounts of deferred tax assets by a valuation allowance if, based on the available evidence, it is more likely than not that such assets will not be realized. The need to establish valuation allowances for deferred tax assets is assessed quarterly. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more likely than not standard for all periods, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. This assessment considers, among other matters, the nature, frequency and severity of current and cumulative losses, forecasts of future profitability and foreign source income, the duration of statutory carryforward periods, and our experience with operating loss and tax credit carryforward expirations. A history of cumulative losses is a significant piece of negative evidence used in our assessment. If a history of cumulative losses is incurred for a tax jurisdiction, forecasts of future profitability are not used as positive evidence related to the realization of the deferred tax assets in the assessment. We recognize the tax benefits of an uncertain tax position only if those benefits are more likely than not to be sustained based on existing tax law. Additionally, we establish a reserve for tax positions that are more likely than not to be sustained based on existing tax law, but uncertain in the ultimate benefit to be sustained upon examination by the relevant taxing authorities. Unrecognized tax benefits are subsequently recognized at the time the more likely than not recognition threshold is met, the tax matter is effectively settled or the statute of limitations for the relevant taxing authority to examine and challenge the tax position has expired, whichever is earlier. We account for all interest and penalties on uncertain income tax positions as income tax expense. Taxes collected from customers and remitted to governmental authorities are reported on a net basis. Earnings per Share Basic earnings per share is computed by dividing the earnings attributable to common shares by the sum of the weighted average number of shares of common stock outstanding during the period and the weighted average number of stock-based awards that have vested but not yet been issued during the period. Diluted earnings per share reflects the potential dilution of securities that could share in the earnings. Cash and Cash Equivalents Cash and cash equivalents include cash on hand and short-term investments that have maturities of three months or less when purchased. Receivables We sell the vast majority of our products to select, pre-approved customers using customary trade terms that allow for payment in the future. Customer trade receivables and miscellaneous receivables, net of allowances for doubtful accounts, customer credits and warranties are reported in accounts and notes receivable on a net basis. Cash flows from the collection of receivables are classified as operating cash flows on the Consolidated Statements of Cash Flows. We establish credit-worthiness prior to extending credit. We estimate the recoverability of receivables each period. This estimate is based upon new information in the period, which can include the review of available financial statements and forecasts, as well as discussions with legal counsel and the management of the debtor company. We provide allowances as events occur which impact the collectability of the receivable. Account balances are charged off against the allowance when the potential for recovery is considered remote. We do not have any off-balance-sheet credit exposure related to our customers. Inventories U.S. inventories are valued at the lower of cost or market, and cost is determined using the last-in, first-out ("LIFO") method of accounting. Non-U.S. inventories are valued at the lower of cost or net realizable value, and cost is determined using the first-in, first-out ("FIFO") method of accounting. Property Plant and Equipment Property, plant and equipment is recorded at cost reduced by accumulated depreciation. Depreciation expense is recognized on a straight-line basis over assets’ estimated useful lives. Machinery and equipment includes manufacturing equipment (depreciated over 3 to 15 years ), computer equipment (depreciated over 3 to 5 years ) and office furniture and equipment (depreciated over 5 to 7 years ). Within manufacturing equipment, assets that are subject to accelerated obsolescence or wear, such as tooling and engraving equipment, are depreciated over shorter periods ( 3 to 7 years ). Heavy production equipment, such as conveyors, kilns and mixers, are depreciated over longer periods ( 10 to 15 years ). Buildings are depreciated over 15 to 30 years , depending on factors such as type of construction and use. Computer software is amortized over 3 to 7 years . Property, plant and equipment is tested for impairment when indicators of impairment exist, such as operating losses and/or negative cash flows. If an evaluation of the undiscounted future cash flows generated by an asset group indicates impairment, the asset group is written down to its estimated fair value, which is based on its discounted future cash flows. The principal assumption used in these impairment tests is future cash flows, which are derived from those used in our operating plan and strategic planning processes. Intangible Assets Our indefinite-lived intangible assets are primarily trademarks which are integral to our corporate identity and expected to contribute indefinitely to our corporate cash flows. We conduct our annual impairment test for indefinite-lived intangible assets during the fourth quarter and we conduct interim impairment tests if indicators of potential impairment exist. An impairment is recognized if the carrying amount of the asset exceeds its fair value. We first perform a qualitative assessment to determine if it is necessary to perform a quantitative impairment test. If a quantitative impairment test is deemed necessary, the method used to determine the fair value of our indefinite-lived intangible assets is the relief-from-royalty method. The principal assumptions used in our application of this method are revenue growth rate, discount rate and royalty rate. Revenue growth rates are derived from those used in our operating plan and strategic planning processes. The discount rate assumption is calculated based upon an estimated weighted average cost of capital, which we believe reflects the overall level of inherent risk and the rate of return a market participant would expect to achieve. The royalty rate assumption represents the estimated contribution of the intangible asset to overall profits. The method used for valuing our indefinite-lived intangible assets did not change from prior periods. Our long-lived intangible assets are primarily contractual arrangements (amortized over 5 years), wh ich includes non-compete agreements, and intellectual property (amortized over 2 to 15 years), which includes developed technology and patents. We review long-lived intangible assets for impairment if indicators of potential impairment exist, such as operating losses and/or negative cash flows. If an evaluation of the undiscounted future cash flows generated by the asset indicates impairment, the asset group is written down to its estimated fair value, which is based on its discounted future cash flows. The principal assumption used in these impairment tests is future cash flows, which are derived from those used in our operating plan and strategic planning processes. Foreign Currency Transactions For our subsidiaries with non-U.S. dollar functional currency, assets and liabilities are translated at period-end exchange rates. Revenues and expenses are translated at exchange rates effective during each month. Foreign currency translation gains or losses are included as a component of accumulated other comprehensive income ("AOCI") within equity. Gains or losses on foreign currency transactions are recognized through net income (loss). Stock-Based Employee Compensation We issue stock-based compensation to certain employees and non-employee directors in different forms, including performance stock awards ("PSAs"), performance stock units ("PSUs"), and restricted stock units ("RSUs"). We record stock-based compensation expense based on an estimated grant-date fair value. The expense is reflected as a component of selling, general and administrative (“SG&A”) expenses on our Consolidated Statements of Operations. Stock-based compensation expense includes an estimate for forfeitures and anticipated achievement levels and is generally recognized on a straight-line basis over the vesting period for the entire award. Net AWI Investment The Consolidated Statements of Stockholders' Equity include net cash transfers and other property transfers between AWI and AFI. The initial net AWI investment balance included assets and liabilities incurred by AWI on behalf of AFI such as accrued liabilities related to corporate allocations including administrative expenses for legal, accounting, treasury, information technology, human resources and other services. Other assets and liabilities recorded by AWI, whose related income and expense had been allocated to AFI, were also included in net AWI investment. The impact of the Spin-off on equity is reflected in net transfers from AWI on the Consolidated Statements of Stockholders' Equity. During 2017, we recorded adjustments primarily related to the tax attributes assumed upon the Spin-off in the amount of $0.7 million . Recently Adopted Accounting Standards On January 1, 2018, we adopted Accounting Standards Codification ("ASC") 606, " Revenue from Contracts with Customers," and all the related amendments. The impact of the standard is limited to our accounting for warranties and returns. We adopted the standard using the modified retrospective transition method and we recorded a cumulative catch up adjustment to increase accumulated deficit in the amount of $4.1 million , increase prepaid expenses and other current assets by $0.4 million and decrease accounts receivable, net by $4.5 million . The adoption of the standard did not have a material impact on our results of operations or cash flows, but did result in new disclosures. On January 1, 2019, we adopted ASU 2016-02, " Leases ." The guidance, and subsequent amendments issued, requires a lessee to recognize the assets and liabilities that arise from a lease agreement. Specifically, this new guidance requires lessees to recognize a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term, with limited exceptions. Adoption of the new standard resulted in the recording of lease assets and lease liabilities of $9.2 million as of January 1, 2019. December 31, 2018 Impact of Adoption January 1, 2019 Assets Operating lease assets $ — $ 8.6 $ 8.6 Finance lease assets — 0.6 0.6 Total lease assets $ — $ 9.2 $ 9.2 Liabilities Current Operating $ — $ 3.5 $ 3.5 Noncurrent Operating — 5.1 5.1 Finance — 0.6 0.6 Total lease liabilities $ — $ 9.2 $ 9.2 See Note 6 to the Consolidated Financial Statements. Recently Issued Accounting Standards In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments." The guidance requires immediate recognition of estimated credit losses that are expected to occur over the remaining life of many financial assets. This new guidance is effective for annual and interim periods in fiscal years beginning after December 15, 2019, but early adoption is permitted for annual and interim periods in fiscal years beginning after December 15, 2018. Adoption of the standard will not materially impact our financial condition, results of operations or cash flows. In August 2018, the FASB issued ASU 2018-13, "Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement." The guidance eliminates, adds and modifies certain disclosure requirements. This new guidance is effective for fiscal years beginning after December 15, 2019 for public companies. Early adoption is permitted for either the entire standard or provisions that eliminate or modify requirements. Adoption of the standard will not impact our financial condition, results of operations or cash flows. In August 2018, the FASB issued ASU 2018-14, "Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans." The guidance changes the disclosure requirements by eliminating certain disclosures that are no longer considered cost beneficial and added new ones that are considered pertinent. The guidance is effective for fiscal years ending after December 15, 2020 for public companies. Early adoption is permitted. Adoption of the standard will not impact our financial condition, results of operations or cash flows. In August 2018, the FASB issued ASU 2018-15, "Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract." The guidance aligns the requirements for capitalizing implementation costs in a cloud computing arrangement service contract with the requirements for capitalizing implementation costs incurred for an internal use software license. Capitalized implementation costs should be amortized over the term of the service agreement on a straight-line basis and should be assessed for impairment in a manner similar to long-lived assets. This new guidance is effective for fiscal years beginning after December 15, 2019 for public companies. Early adoption is permitted. Adoption of the standard will not materially impact our financial condition, results of operations or cash flows. In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740)." The guidance simplifies accounting for income taxes by removing certain exceptions. This new guidance is effective for fiscal years beginning after December 15, 2020 for public companies. Early adoption is permitted. We are continuing to evaluate the impact the adoption of this standard will have on our financial condition, results of operations or cash flows. Subsequent Events We have evaluated subsequent events for potential recognition and disclosure through the date the Consolidated Financial Statements included in the Form 10-K were issued.

Nature of Operations

Nature of Operations	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Nature of Operations	NATURE OF OPERATIONS Geographic Areas The sales in the table below are allocated to geographic areas based upon the location of the customer. Year Ended December 31, 2019 2018 2017 Net trade sales United States $ 474.4 $ 563.4 $ 549.9 China 68.4 68.7 59.3 Canada 37.9 49.2 48.6 Other 45.6 46.9 46.3 Total $ 626.3 $ 728.2 $ 704.1 The long-lived assets in the table below include property, plant and equipment, net. Long-lived assets by geographic area are reported by location of the operations to which the asset is attributed. December 31, 2019 December 31, 2018 United States $ 192.3 $ 205.9 China 72.7 78.0 Other 12.2 12.2 Total $ 277.2 $ 296.1 Information about Major Customers In 2019 , net sales to one customer exceeded 10% of our total net sales. Total net sales to this customer were $124.4 million in 2019 . We monitor the creditworthiness of our customers and generally do not require collateral.

Severance Expense

Severance Expense	12 Months Ended
	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Other Severance Expense	SEVERANCE EXPENSE In the second quarter of 2019, we recorded $ 2.9 million in SG&A expenses for severance and related expenses to reflect the separation costs for our former President and Chief Executive Officer. In connection with the divestiture of our North American wood flooring business we announced a cost optimization plan in 2018 to improve our existing cost structure by eliminating essentially all shared costs that will not be covered by transition service agreements with AIP. The new structure was expected to better reflect the simplification of our operations as a purely resilient flooring company. We eliminated approximately 45 positions, and the impacted employees received severance benefits. We recognized charges of $2.4 million in SG&A expenses in the fourth quarter of 2018. In the first quarter of 2018, we announced that we were changing our residential go-to-market strategy and empowering our distributors with the responsibilities of marketing, merchandising and direct sales representation. The new structure was designed to provide enhanced support and responsiveness to retailers. As a result of the reorganization, approximately 70 positions were eliminated, and the impacted employees received severance benefits. We recognized charges of $3.1 million primarily in SG&A expenses. In the first quarter of 2017, we announced the combination of our commercial and residential go-to-market structures and related organization. The new structure was designed to provide enhanced support and responsiveness to retailers and contractors and to foster greater alignment with distributors, which cover both commercial and residential markets. As a result of this reorganization, approximately 40 positions were eliminated, and the impacted employees received severance benefits. We recognized charges of $4.6 million in SG&A expense as a result of this reorganization.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION Prior to the Spin-off, AWI issued stock-based compensation awards to employees and directors that became employees or directors of AFI. These awards included employee stock options, employee and director RSUs, and employee PSUs. In April 2016, AFI adopted the Armstrong Flooring, Inc. 2016 Long-Term Incentive Plan (the "2016 LTIP") and the Armstrong Flooring, Inc. 2016 Directors' Stock Unit Plan (the "2016 Directors' Plan"), which collectively comprised a new compensation program that allows for the grant to certain employees and non-employee directors of AFI different forms of benefits, including PSAs, PSUs, and RSUs. On June 2, 2017, our stockholders approved an amendment and restatement of the 2016 LTIP. Under the 2016 LTIP, our board of directors initially authorized up to 5,500,000 shares of common stock for issuance and the amendment authorized an additional 2,100,000 shares of common stock for issuance. Our board of directors authorized up to 600,000 shares of common stock that may be issued pursuant to the 2016 Directors' Plan. As of December 31, 2019 , 1,863,537 shares and 188,351 shares were available for future grants under the 2016 LTIP and the 2016 Directors' Plan, respectively. New Awards The Management Development and Compensation Committee of the Board of Directors granted the following awards under the 2016 LTIP Plan and the 2016 Directors' Plan: PSAs, PSUs and Performance-Based Restricted Stock Units ("PBRSUs") — PSAs, PSUs and PBRSUs were granted to key executive employees and certain management employees of AFI. The PSAs, PSUs and PBRSUs are units of restricted Company common stock that vest based on the achievement of certain performance conditions. PSA and PSUs — The performance condition for 75.0% of the awards is based on earnings before interest, taxes, depreciation and amortization ("EBITDA"). The performance condition for the remaining 25.0% of the awards is based on cumulative free cash flow, defined as cash flow from operations, less cash used in investing activities. Performance awards issued to key executive employees in 2017 are also indexed to the achievement of specified levels of absolute total shareholder return, and the fair value was measured using a Monte-Carlo simulation on the date of grant. For performance awards that are not indexed to the achievement of specified levels of absolute total shareholder return, the fair value was measured using our stock price on the date of grant. If the performance conditions are met, the awards vest at the conclusion of the performance period, which is generally at the end of the third fiscal year following the date of grant. The following table summarizes the assumptions used to measure the fair value of the annual grant of performance awards that are also indexed to the achievement of specified levels of absolute total shareholder return. 2017 Weighted-average grant-date fair value $ 15.41 Assumptions Risk-free rate of return 1.6 % Expected volatility 31.4 % Expected term (in years) 3.0 Expected dividend yield — We did not issue any such awards in 2019 or 2018. The risk free rate of return was determined based on the implied yield available on zero-coupon U.S. Treasury bills at the time of grant with a remaining term equal to the expected term of the award. The expected volatility was based on peer volatility since, as of the valuation date, we did not have a sufficient number of trading days to rely on our own trading history. The expected term represented the performance period on the underlying award. The expected dividend yield was assumed to be zero because, at the time of each grant, we had no plans to declare a dividend. PBRSUs — PBRSUs were issued to the CEO on September 11, 2019. The number of shares earned is based upon the achievement of five stock price hurdles over the period from September 11, 2019 through September 11, 2024. The five per share stock price hurdles are $10.50 , $12.25 , $14.00 , $15.75 and $17.50 . A Monte-Carlo valuation was performed to simulate possible future stock prices for AFI over the time remaining period of the award. The following table summarized the Monte-Carlo inputs and grant-date fair value price used for the PBRSUs. 2019 Grant-date stock price (AFI closing stock price on September 11, 2019) $ 7.43 Assumptions Risk-free rate of return 1.59 % Expected volatility 41.45 % Expected dividend yield — The Monte-Carlo valuation provided a fair value for each of the five per share stock price hurdles discussed above, respectively: $5.93 , $5.28 , $4.70 , $4.20 , and $3.75 , and provided derived service periods of three years for the first two hurdles and four years for the remaining three hurdles. We did not issue any such awards in 2018 or 2017. The risk free rate of return was determined based on the implied yield available on zero-coupon U.S. Treasury bills at the time of grant with a remaining term equal the expected term of the award. The expected volatility was based on a weighted average of the volatility of AFI and the average volatility of our compensation peer group's volatilities. The expected dividend yield was assumed to be zero because, at the time of the grant, we had no plans to declare a dividend. RSUs — RSUs were granted to key executive employees and certain management employees of AFI. The RSUs are units representing shares of Company common stock which are converted to shares of Company common stock at the end of the service period. There are no performance conditions associated with these awards. Generally, vesting occurs with one third of the awards vesting at the end of one, two and three years from the date of grant. The fair value of RSUs was measured using our stock price on the date of grant. Director Awards — RSUs were granted to our non-employee directors under the 2016 Directors' Plan. These awards generally have a vesting period of one year , and any dividends paid prior to vesting are forfeitable if the award does not vest. The awards are generally payable six months following the director’s separation from service on the board. The fair value of non-employee director RSUs was measured using our stock price on the date of grant. The following table summarizes activity related to the non-employee director RSUs. 2019 2018 Vested and not yet delivered as of December 31 203,261 174,442 Granted 57,012 67,288 Outstanding as of December 31 260,273 241,730 Modified Awards In connection with the Spin-off, in accordance with the Employee Matters Agreement between AFI and AWI, certain executives, employees and non-employee directors were entitled to receive equity compensation awards of AFI in replacement of previously outstanding awards granted prior to the Spin-off under various AWI stock incentive plans. These awards included stock options, RSUs, and PSUs. In connection with the Spin-off, these awards were converted into new AFI equity awards using a formula designed to preserve the intrinsic value of the awards immediately prior to the Spin-off on April 1, 2016. The modification did not result in a change to the value of the awards. Therefore, no additional compensation expense related to the award modification was recorded. The terms and conditions of the AWI awards were replicated and, as necessary, adjusted to ensure that the vesting schedule and economic value of the awards was unchanged by the conversion. The following table summarizes information about AFI's modified stock options: Number of Shares (in thousands) Weighted-Average Exercise Price (per share) Weighted-Average Remaining Contractual Term (years) Aggregate Intrinsic Value (in millions) Outstanding as of December 31, 2018 453.5 $ 12.89 3.6 $ 0.2 Exercised (5.7 ) 13.98 Cancelled (5.7 ) 14.55 Outstanding as of December 31, 2019 442.1 12.85 2.7 — Options exercisable 442.1 12.85 2.7 — The options expire between 2020 and 2024. When options are exercised, we may issue new shares, use treasury shares (if available), acquire shares held by investors, or a combination of these alternatives in order to satisfy the option exercises. The following table presents information related to stock option exercises: Year Ended December 31, 2019 2018 Total intrinsic value of stock options exercised $ — $ 0.3 Cash proceeds received from stock options exercised 0.1 0.8 Total Awards The table below summarizes activity related to the PSAs, PSUs, PBRSUs, and RSUs. The non-employee director activity is not reflected in the RSU activity below. PSAs, PSUs and PBRSUs RSUs Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value (per share) Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value (per share) Non-vested as of December 31, 2018 1,102.5 $ 13.88 324.6 $ 16.13 Granted 572.3 7.75 622.8 7.39 Vested (108.8 ) 19.90 (116.9 ) 15.82 Cancelled (437.5 ) 12.73 — — Forfeited (260.2 ) 13.76 (159.7 ) 15.18 Non-vested as of December 31, 2019 868.3 10.53 670.8 8.28 The table above contains 4,174 and 6,895 PSUs as of December 31, 2019 and 2018 , respectively, which are accounted for as liability awards as they may be settled in cash. The table above contains 14,118 and 6,825 RSUs as of December 31, 2019 and 2018 , respectively, which are accounted for as liability awards as they may be settled in cash. In 2019 , the weighted-average per share grant-date fair value of performance-based awards and RSUs granted was $7.75 and $7.39 , respectively. The fair value of performance-based awards and RSUs that vested in 2019 was $ 2.2 million and $1.8 million , respectively. In 2018 , the weighted-average per share grant-date fair value of performance-based awards and RSUs granted was $13.94 and $16.12 , respectively. No PSAs and PSUs vested in 2018 . The fair value of RSU's that vested in 2018 was $2.1 million . Stock-based compensation expense is generally recognized on a straight-line basis over the vesting period and is recorded as a component of SG&A. Total stock-based compensation expense included in the Consolidated Statements of Operations and the related tax effects are presented in the table below: Year Ended December 31, 2019 2018 2017 Stock-based compensation expense $ 1.2 $ 4.7 $ 1.5 Income tax benefit — 1.1 0.8 To the extent the vesting-date fair value is greater than the grant-date fair value, the excess tax benefit is recorded as an income tax benefit in the Consolidated Statements of Operations. For the years ended December 31, 2019 , 2018 and 2017 the income tax expense was $0.1 million , $0.1 million , and the income tax benefit $0.5 million , respectively related to grant-date fair value from the exercise of stock options and vesting of stock-based awards. As of December 31, 2019 , $5.2 million of total unrecognized compensation expense related to non-vested stock-based compensation arrangements is expected to be recognized over a weighted-average period of 3.2 years

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Operating Leases	LEASES We lease certain real estate (warehouse and office space), vehicles and equipment. For leases with an initial term of less than thirteen months we recognize lease expense for these leases on a straight-line basis over the lease term. Leases with an initial term of thirteen months or more are recorded on the balance sheet. We consider all payments fixed unless there is a material impact to the balance sheet at any given time during the lease period. Our leases have remaining lease terms of one month to nine years . Many leases include one or more options to renew, with renewal terms that can extend the lease term from one month to ten years or more. The exercise of lease renewal options is at our sole discretion. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The FASB allows companies transition and practical expedient elections to simplify the transition of the new standard. We have elected the following: • We have elected to not restate comparative prior periods but instead recognize a cumulative effect adjustment to the opening balance of retained earnings in the period of adoption, if a difference existed between the initial lease liability and related right of use asset. • We have elected to use the hindsight practical expedient with respect to determining the lease term allowing us to consider the actual outcome of the lease renewals, termination options and purchase options, and in assessing impairment of the right-of-use asset for existing leases. • We have elected to combine lease and non-lease components as a single component and account for it as a lease for all asset classes with the exception of land and non-operating buildings. Lease and non-lease components of land and non-operating buildings are generally accounted for separately. • We have elected to use a portfolio approach to determine the discount rate and defined portfolio based on the geographic location of the asset by country and duration of the lease. The following table summarizes components of lease expense: Year Ended December 31, 2019 Finance lease cost Amortization of right-of-use asset $ 0.3 Operating lease cost 4.1 Short-term lease cost 1.4 Sublease income (1.4 ) Total lease cost $ 4.4 During 2019, we recognized $ 0.9 million and $ 1.6 million of sublease income and income from non-lease components, respectively, in SG&A expenses related to termination fees received from TZI due to the cancellation of a sublease before the end of the lease term. The following table summarizes supplemental balance sheet information related to leases: Balance Sheet Classification December 31, 2019 Assets Operating lease assets Operating lease assets $ 6.0 Finance lease assets Property, plant and equipment, less accumulated depreciation 0.6 Total lease assets $ 6.6 Liabilities Current Operating Accounts payable and accrued expenses $ 3.3 Finance Current installments of long-term debt 0.2 Noncurrent Operating Noncurrent operating lease liabilities 2.7 Finance Long-term debt 0.3 Total lease liabilities $ 6.5 The following table summarizes supplemental cash flow information related to leases: Year Ended December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 4.1 Financing cash flows from finance leases $ 0.3 The following table summarized weighted average remaining lease term and weighted average discount rate: December 31, 2019 Weighted Average Remaining Lease Term (Years) Discount Rate Operating leases 3.5 6.0 % Finance leases 3.2 5.4 % The following table provides future minimum payments at December 31, 2019 , by year and in the aggregate, for leases having non-cancelable lease terms in excess of one year: Operating Leases Finance Leases 2020 $ 3.6 $ 0.3 2021 1.3 0.2 2022 0.3 0.1 2023 0.2 — 2024 0.2 — Thereafter 1.1 — Total $ 6.7 $ 0.6 The following table provides future minimum payments having non-cancelable lease terms in effect at December 31, 2018 under the previous lease standard, ASC 840: Total Minimum Lease Payments Scheduled minimum lease payments 2019 $ 10.0 2020 7.1 2021 2.0 2022 0.3 2023 0.2 Thereafter 0.8 Total $ 20.4 In our 2018 Form 10-K we disclosed expected future minimum lease payments at December 31, 2018 of $20.4 million . The adoption of ASC 842 reduced the expected future minimum lease payments by removing costs related to non-lease components of existing contracts and agreements no longer defined as operating leases by $8.2 million and $2.3 million , respectively. The following table provides reconciliation of future minimum lease payments and lease liability: December 31, 2019 Operating Leases Finance Leases Future minimum lease payments $ 6.7 $ 0.6 Less: Unamortized interest 0.7 0.1 Total lease liability $ 6.0 $ 0.5
Finance Leases	LEASES We lease certain real estate (warehouse and office space), vehicles and equipment. For leases with an initial term of less than thirteen months we recognize lease expense for these leases on a straight-line basis over the lease term. Leases with an initial term of thirteen months or more are recorded on the balance sheet. We consider all payments fixed unless there is a material impact to the balance sheet at any given time during the lease period. Our leases have remaining lease terms of one month to nine years . Many leases include one or more options to renew, with renewal terms that can extend the lease term from one month to ten years or more. The exercise of lease renewal options is at our sole discretion. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The FASB allows companies transition and practical expedient elections to simplify the transition of the new standard. We have elected the following: • We have elected to not restate comparative prior periods but instead recognize a cumulative effect adjustment to the opening balance of retained earnings in the period of adoption, if a difference existed between the initial lease liability and related right of use asset. • We have elected to use the hindsight practical expedient with respect to determining the lease term allowing us to consider the actual outcome of the lease renewals, termination options and purchase options, and in assessing impairment of the right-of-use asset for existing leases. • We have elected to combine lease and non-lease components as a single component and account for it as a lease for all asset classes with the exception of land and non-operating buildings. Lease and non-lease components of land and non-operating buildings are generally accounted for separately. • We have elected to use a portfolio approach to determine the discount rate and defined portfolio based on the geographic location of the asset by country and duration of the lease. The following table summarizes components of lease expense: Year Ended December 31, 2019 Finance lease cost Amortization of right-of-use asset $ 0.3 Operating lease cost 4.1 Short-term lease cost 1.4 Sublease income (1.4 ) Total lease cost $ 4.4 During 2019, we recognized $ 0.9 million and $ 1.6 million of sublease income and income from non-lease components, respectively, in SG&A expenses related to termination fees received from TZI due to the cancellation of a sublease before the end of the lease term. The following table summarizes supplemental balance sheet information related to leases: Balance Sheet Classification December 31, 2019 Assets Operating lease assets Operating lease assets $ 6.0 Finance lease assets Property, plant and equipment, less accumulated depreciation 0.6 Total lease assets $ 6.6 Liabilities Current Operating Accounts payable and accrued expenses $ 3.3 Finance Current installments of long-term debt 0.2 Noncurrent Operating Noncurrent operating lease liabilities 2.7 Finance Long-term debt 0.3 Total lease liabilities $ 6.5 The following table summarizes supplemental cash flow information related to leases: Year Ended December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 4.1 Financing cash flows from finance leases $ 0.3 The following table summarized weighted average remaining lease term and weighted average discount rate: December 31, 2019 Weighted Average Remaining Lease Term (Years) Discount Rate Operating leases 3.5 6.0 % Finance leases 3.2 5.4 % The following table provides future minimum payments at December 31, 2019 , by year and in the aggregate, for leases having non-cancelable lease terms in excess of one year: Operating Leases Finance Leases 2020 $ 3.6 $ 0.3 2021 1.3 0.2 2022 0.3 0.1 2023 0.2 — 2024 0.2 — Thereafter 1.1 — Total $ 6.7 $ 0.6 The following table provides future minimum payments having non-cancelable lease terms in effect at December 31, 2018 under the previous lease standard, ASC 840: Total Minimum Lease Payments Scheduled minimum lease payments 2019 $ 10.0 2020 7.1 2021 2.0 2022 0.3 2023 0.2 Thereafter 0.8 Total $ 20.4 In our 2018 Form 10-K we disclosed expected future minimum lease payments at December 31, 2018 of $20.4 million . The adoption of ASC 842 reduced the expected future minimum lease payments by removing costs related to non-lease components of existing contracts and agreements no longer defined as operating leases by $8.2 million and $2.3 million , respectively. The following table provides reconciliation of future minimum lease payments and lease liability: December 31, 2019 Operating Leases Finance Leases Future minimum lease payments $ 6.7 $ 0.6 Less: Unamortized interest 0.7 0.1 Total lease liability $ 6.0 $ 0.5

Relationship with AWI

Relationship with AWI	12 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Relationship with AWI	RELATIONSHIP WITH AWI On April 1, 2016, in connection with the completion of the Spin-off, we entered into several agreements with AWI that provided for the separation and allocation between AFI and AWI of the assets, employees, liabilities and obligations of AWI and its subsidiaries attributable to periods prior to, at and after the Spin-off. These agreements also govern the relationship between AFI and AWI subsequent to the completion of the Spin-off. The Tax Matters Agreement generally governs AFI’s and AWI’s respective rights, responsibilities and obligations after the Spin-off with respect to tax liabilities and benefits, tax attributes, the preparation and filing of tax returns, the control of audits and other tax proceedings, and other matters regarding taxes for any tax period ending on or before the distribution date, as well as tax periods beginning after the distribution date. In addition, the Tax Matters Agreement provides that AFI is liable for taxes incurred by AWI that may arise if AFI takes, or fails to take, certain actions that may result in the separation, the distribution or certain related transactions failing to qualify as tax-free for U.S. federal income tax purposes. AWI received an opinion from its tax counsel that the Spin-off qualified as a tax-free transaction for AWI and its shareholders. Pursuant to the Trademark License Agreement, AWI provided AFI with a perpetual, royalty-free license to use the “Armstrong” trade name and logo. Pursuant to the Transition Trademark License agreement, AFI provided AWI with a five-year, royalty-free license to use the “Inspiring Great Spaces” tagline, logo and related color scheme. Under the Campus Lease Agreement, AFI leased certain portions of AWI's campus for use as AFI's corporate headquarters. The Campus Lease Agreement provides for an initial term of five years from April 1, 2016.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES U.S. Tax Reform On December 22, 2017, the U.S government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Reform Act”). The Tax Reform Act made broad and complex changes to the U.S. tax code that has impacted our fiscal year ending December 31, 2018, including, but not limited, reducing the U.S. federal corporate tax rate from 35% to 21% effective January 1, 2018, limiting the carryover of net operating losses to 80% of taxable income, and modifying the deductibility of certain expenses. We recognized the income tax effects of the Tax Reform Act in our 2017 Consolidated Financial Statements in accordance with SAB No. 118, which provides SEC staff guidance for the application of ASC Topic 740, "Income Taxes," in the reporting period in which the Tax Reform Act was signed into law. We completed our analysis of the Tax Reform Act during 2018 and recorded an additional income tax expense of $0.1 million in 2018, due to the impact of filing our 2017 U.S. Federal Tax Return. The following table presents loss from continuing operations before income taxes for U.S. and international operations based on the location of the entity to which such earnings are attributable: Year Ended December 31, 2019 2018 2017 Domestic $ (65.6 ) $ (28.1 ) $ (18.0 ) Foreign (1.7 ) 3.0 (1.1 ) Total $ (67.3 ) $ (25.1 ) $ (19.1 ) The following table presents the components of the income tax benefit: Year Ended December 31, 2019 2018 2017 Current Federal $ 0.3 $ 0.3 $ (4.7 ) Foreign 0.4 0.6 (0.4 ) State and local 0.1 0.2 — Subtotal 0.8 1.1 (5.1 ) Deferred Federal 0.1 (4.6 ) (0.3 ) Foreign 0.6 (2.5 ) 0.1 State and local 0.1 — 3.3 Subtotal 0.8 (7.1 ) 3.1 Total $ 1.6 $ (6.0 ) $ (2.0 ) As of December 31, 2019, we reviewed our position with regard to foreign unremitted earnings and determined that unremitted earnings would continue to be permanently reinvested. Accordingly, we have not recorded foreign withholding taxes on approximately $12.7 million of undistributed earnings of foreign subsidiaries that could be subject to taxation if remitted to the U.S. because we currently plan to keep these amounts permanently invested overseas. It is not practicable to calculate the residual income tax that would result if these basis differences reversed due to the complexities of the tax law and the hypothetical nature of the calculations. The following table presents the differences between our income tax benefit at the U.S. federal statutory income tax rate and our effective income tax rate: Year Ended December 31, 2019 2018 2017 Continuing operations tax at statutory rate $ (14.1 ) $ (5.3 ) $ (6.7 ) Increase in valuation allowances on deferred federal income tax assets 14.3 0.2 — Increase in valuation allowances on deferred state income tax assets 2.1 0.7 5.2 State income tax benefit, net of federal benefit (1.8 ) (0.6 ) (0.8 ) Tax on foreign and foreign-source income 1.2 1.1 (1.4 ) Permanent book/tax differences 1.1 1.7 0.6 Research and development credits (0.9 ) (0.6 ) (0.7 ) Increase/(decrease) in valuation allowances on deferred foreign income tax assets 0.1 (3.4 ) 2.0 State law changes, net of federal benefit — — (1.1 ) Impact of Tax Reform Act — 0.1 0.8 Other (0.4 ) 0.1 0.1 Total $ 1.6 $ (6.0 ) $ (2.0 ) The tax effects of principal temporary differences between the carrying amounts of assets and liabilities and their tax bases are summarized in the following table. Management believes it is more likely than not that the results of future operations will generate sufficient taxable income in the appropriate jurisdiction and foreign source income to realize deferred tax assets, net of valuation allowances. In arriving at this conclusion, we considered the profit or loss before tax generated for the years 2017 through 2019 , as well as future reversals of existing taxable temporary differences and projections of future profit before tax and foreign source income. December 31, 2019 December 31, 2018 Deferred income tax assets (liabilities) Postretirement and postemployment benefits $ 17.5 $ 16.7 Net operating losses 25.1 19.3 Accrued expenses 4.2 9.1 Deferred compensation 2.6 5.5 Customer claims reserves 4.2 2.9 Goodwill 2.2 2.2 Pension benefit liabilities 3.5 2.3 Tax credit carryforwards 3.4 2.6 Intangibles 2.8 1.7 Other 2.6 0.8 Total deferred income tax assets 68.1 63.1 Valuation allowances (35.8 ) (29.7 ) Net deferred income tax assets 32.3 33.4 Accumulated depreciation (20.6 ) (20.2 ) Inventories (6.7 ) (8.7 ) Other (2.1 ) (1.0 ) Total deferred income tax liabilities (29.4 ) (29.9 ) Net deferred income tax assets $ 2.9 $ 3.5 Deferred income taxes have been classified in the Consolidated Balance Sheet as: Deferred income tax assets—noncurrent $ 5.3 $ 5.6 Deferred income tax liabilities—noncurrent (2.4 ) (2.1 ) Net deferred income tax assets $ 2.9 $ 3.5 We reduce the carrying amounts of deferred tax assets by a valuation allowance if, based on the available evidence, it is more likely than not that such assets will not be realized. The need to establish valuation allowances for deferred tax assets is assessed quarterly. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more likely than not standard for all periods, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. This assessment considers, among other matters, the nature, frequency and severity of current and cumulative losses, forecasts of future profitability and foreign source income, the duration of statutory carryforward periods, and our experience with operating loss and tax credit carryforward expirations. A history of cumulative losses is a significant piece of negative evidence used in our assessment. If a history of cumulative losses is incurred for a tax jurisdiction, forecasts of future profitability are not used as positive evidence related to the realization of the deferred tax assets in the assessment. The following table presents the components of our valuation allowance against deferred income tax assets: Year Ended December 31, 2019 2018 Federal $ 20.3 $ 9.4 State 5.4 2.8 Foreign 10.1 17.5 Total $ 35.8 $ 29.7 The valuation allowances offset federal, state and foreign deferred tax assets, credits, and operating loss carryforwards. The following is a summary of our net operating loss (“NOL”) carryforwards: Year Ended December 31, 2019 2018 State $ 56.7 $ 17.6 Foreign 42.0 65.3 Federal 54.7 14.0 As of December 31, 2019 , $41.2 million of state NOL carryforwards expire between 2020 and 2038 , and $41.6 million of foreign NOL carryforwards expire between 2020 and 2024 . The remainder are available for carryforward indefinitely. We estimate we will need to generate future taxable income of approximately $142.7 million for state income tax purposes during the respective realization periods (ranging from 2020 to 2039 ) in order to fully realize the net deferred income tax assets discussed above. We have $0.7 million of unrecognized tax benefits ("UTBs") as of December 31, 2019 . Of this amount, $0.1 million , net of federal benefit, if recognized in future periods, would impact the reported effective tax rate. It is reasonably possible that certain UTBs may increase or decrease within the next twelve months due to tax examination changes, settlement activities, expirations of statute of limitations, or the impact on recognition and measurement considerations related to the results of published tax cases or other similar activities. Over the next twelve months, we estimate UTB's may decrease by $0.1 million related to state statutes expiring. The following table presents a reconciliation of the total amounts of UTBs, excluding interest and penalties: 2019 2018 2017 Unrecognized tax benefits as of January 1 $ 1.6 $ 4.8 $ 5.0 Gross change for current year positions — 0.2 0.4 (Decreases) for prior period positions (0.9 ) (3.4 ) (0.6 ) Unrecognized tax benefits balance as of December 31 $ 0.7 $ 1.6 $ 4.8 The 2018 decrease related to prior period positions includes $3.1 million related to discontinued operations. We conduct business globally, and as a result, we file income tax returns in the U.S., various states and international jurisdictions. In the normal course of business, we are subject to examination by taxing authorities throughout the world in such major jurisdictions as Australia, Canada, China and the U.S. Generally, we have open tax years subject to tax audit on average of between three years and six years. With few exceptions, the statute of limitations is no longer open for state or non-U.S. income tax examinations for the years before 2013. We have not significantly extended any open statutes of limitation for any major jurisdiction and have reviewed and accrued for, where necessary, tax liabilities for open periods. The tax years 2013 through 2019 are subject to future potential tax adjustments. The following table details amounts related to certain other taxes: Year Ended December 31, 2019 2018 2017 Payroll taxes $ 10.0 $ 11.7 $ 10.9 Property and franchise taxes 3.2 2.5 2.5

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS In November 2018, we entered into a definitive agreement to sell our wood business to TZI, an affiliate of AIP. The sale was completed in December 2018. The proceeds from the sale were $90.2 million , net of closing costs, transaction fees and taxes. The transaction was subject to a customary post-closing working capital adjustment process which resulted in us making a $1.9 million payment to TZI in the third quarter of 2019. On December 31, 2018, in connection with the sale of our wood business, TZI and AFI entered into agreements related to transition services, intellectual property, and subleases. Pursuant to the transition service agreement AFI provided transitional services in areas including human resources, customer service, operations, finance and IT. In consideration for the services, TZI paid AFI $11.9 million of net fees that varied based on the scope of services provided, plus a $3.0 million administrative fee, which are reflected as a reduction of SG&A expense. TZI reimbursed AFI for AFI’s out-of-pocket costs and expenses in connection with providing the services. Pursuant to the intellectual property agreement, AFI provided TZI a non-exclusive, royalty-free, non-sublicensable, non-assignable license in and to certain trademarks. Under the subleases agreement TZI leased certain premises located at the AFI campus through March 30, 2021 with the option to terminate the sublease any time after six months from the effective date of the sublease with 30-days' prior notice. TZI terminated the lease in 2019 and paid a termination fee of $2.5 million . Sublease income received prior to the termination totaled $1.5 million . As a part of the transition service agreement, we facilitated sales into Canada for TZI in 2019 through our Canadian subsidiary as an agent. The financial results of the wood business have been classified as discontinued operations for all periods presented. The Consolidated Statements of Cash Flows does not separately report the cash flows of the discontinued operation. The following is a summary of the operating results of the wood business, which are included in discontinued operations. These results exclude overhead allocations. 2018 2017 Net Sales $ 387.0 $ 429.6 Cost of goods sold 330.7 407.5 Gross profit 56.3 22.1 Selling, general and administrative expenses 36.6 39.4 Intangible asset impairment — 12.5 Operating earnings (loss) 19.7 (29.8 ) Interest expense — 0.1 Other expense, net — 1.0 Earnings (loss) before income tax 19.7 (30.9 ) Income tax expense (benefit) 9.8 (6.2 ) Net earnings (loss) from discontinued operations $ 9.9 $ (24.7 ) 2018 2017 Depreciation and Amortization $ 10.3 $ 40.0 Capital Expenditures (8.0 ) (12.3 ) The following is a summary of the results related to the net gain (loss) on disposal of wood business which is included in discontinued operations: 2019 2018 Gain (loss) on disposal of discontinued operations before income tax $ 10.4 $ (153.8 ) Income tax expense — — Net gain (loss) on disposal of discontinued operations $ 10.4 $ (153.8 ) During the second quarter of 2019, we reached a resolution in our antidumping case resulting in a reversal of a previously recognized liability of $11.4 million , which was reflected in gain on disposal of discontinued operations. See Note 22 for further information.

Earnings Per Share of Common St

Earnings Per Share of Common Stock	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share Of Common Stock	EARNINGS PER SHARE OF COMMON STOCK The table below shows a reconciliation of the numerator and denominator for basic and diluted earnings per share calculations for the periods indicated. Year Ended December 31, 2019 2018 2017 Numerator (Loss) from continuing operations $ (68.9 ) $ (19.1 ) $ (17.1 ) Earnings (loss) from discontinued operations, net of tax 10.4 (143.9 ) (24.7 ) Net (loss) $ (58.5 ) $ (163.0 ) $ (41.8 ) Denominator Weighted average number of common shares outstanding 23,597,877 25,780,214 26,977,475 Weighted average number of vested shares not yet issued 518,460 188,195 136,504 Weighted average number of common shares outstanding - Basic 24,116,337 25,968,409 27,113,979 Dilutive stock-based compensation awards outstanding — — — Weighted average number of common shares outstanding - Diluted 24,116,337 25,968,409 27,113,979 The diluted loss per share was calculated using basic common shares outstanding, as inclusion of potentially dilutive common shares would be anti-dilutive for those calculations. Performance-based employee compensation awards are considered potentially dilutive in the initial period in which the performance conditions are met. The following awards were excluded from the computation of diluted (loss) earnings per share: Year Ended December 31, 2019 2018 2017 Potentially dilutive common shares excluded from diluted computation as inclusion would be anti-dilutive 611,399 474,910 743,678 Performance awards excluded from diluted computation, as performance conditions not met 343,505 862,256 849,483

Accounts And Notes Receivable

Accounts And Notes Receivable	12 Months Ended
	Dec. 31, 2019
Receivables and Warranty Accruals [Abstract]
Accounts And Notes Receivable	ACCOUNTS AND NOTES RECEIVABLE The following table presents accounts and notes receivables, net of allowances: December 31, 2019 December 31, 2018 Customer receivables $ 47.1 $ 45.4 Miscellaneous receivables 7.2 6.2 Less: allowance for product warranties, discounts and losses (18.2 ) (12.6 ) Total $ 36.1 $ 39.0 Generally, we sell our products to select, pre-approved customers whose businesses are affected by changes in economic and market conditions. We consider these factors and the financial condition of each customer when establishing our allowance for losses from doubtful accounts. Allowance for product claims represents expected reimbursements for cost associated with warranty repairs and customer accommodation claims, the majority of which is provided to our independent distributors through a credit against accounts receivable from the distributor to AFI. The following table summarizes the activity for the allowance for product claims: Year Ended December 31, 2019 2018 Balance as of January 1 $ (6.4 ) $ (5.6 ) Cumulative effect of adoption of new revenue recognition standard as of January 1 — (1.7 ) Reductions for payments 6.8 7.5 Current year claim accruals (9.4 ) (6.6 ) Balance as of December 31 $ (9.0 ) $ (6.4 )

Inventories

Inventories	12 Months Ended
	Dec. 31, 2019
Inventory Disclosure [Abstract]
Inventories	INVENTORIES The following table presents details related to our inventories, net: December 31, 2019 December 31, 2018 Finished goods $ 87.1 $ 110.5 Goods in process 4.5 5.7 Raw materials and supplies 20.0 23.3 Total $ 111.6 $ 139.5 Inventories valued on a LIFO basis $ 84.6 $ 113.3 Inventories valued on FIFO or other basis $ 27.0 $ 26.2 The distinction between the use of different methods of inventory valuation is primarily based on geographic location. We value our inventories on a LIFO basis only in the United States. Inventory values were lower than would have been reported on a total FIFO basis by $4.7 million and $3.0 million as of December 31, 2019 and 2018 , respectively. On September 11, 2019, Michel S. Vermette was appointed Chief Executive Officer of the Company and initiated the implementation of a new multi-year product strategy and inventory optimization plan, which includes focusing on critical products and standardizing procedures to enable better decision making. As a result, we recorded a non-cash inventory write down of $ 13.6 million during the third quarter of 2019 , primarily related to the write down of inventory in certain product categories to estimated liquidation value.

Prepaid Expenses and Other Curr

Prepaid Expenses and Other Current Assets	12 Months Ended
	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses And Other Current Assets	PREPAID EXPENSES AND OTHER CURRENT ASSETS The following table presents details related to our prepaid expenses and other current assets: December 31, 2019 December 31, 2018 Prepaid expenses $ 5.7 $ 6.8 Merchandising materials 3.1 9.4 Other 1.2 1.8 Total $ 10.0 $ 18.0 Merchandising materials of $5.9 million were written off as obsolete in the third quarter of 2019 in connection with a decreased demand for residential displays following our go to market change in 2018 .

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	PROPERTY, PLANT AND EQUIPMENT The following table presents details related to our property, plant and equipment, net: December 31, 2019 December 31, 2018 Land $ 28.2 $ 29.6 Buildings 88.3 91.8 Machinery and equipment 444.6 452.8 Computer software 15.3 19.2 Construction in progress 19.2 21.5 Less accumulated depreciation and amortization (318.4 ) (318.8 ) Total $ 277.2 $ 296.1 Property, plant and equipment depreciation expense for the years ended December 31, 2019 and 2018 was $43.7 million and $37.5 million , respectively.

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	INTANGIBLE ASSETS The following table details amounts related to our intangible assets: December 31, 2019 December 31, 2018 Estimated Useful Life Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Long-lived intangible assets Contractual arrangements 5 years $ 36.4 $ 17.3 $ 36.4 $ 10.7 Intellectual property 2-15 years 5.3 1.7 5.0 1.3 Subtotal 41.7 $ 19.0 41.4 $ 12.0 Indefinite-lived intangible assets Trademarks and brand names Indefinite 2.7 2.6 Total $ 44.4 $ 44.0 Year Ended December 31, 2019 2018 2017 Amortization expense $ 7.0 $ 7.2 $ 4.2 During the second quarter of 2017, we acquired vinyl composition tile ("VCT") assets for $36.1 million , consisting of equipment and trademarks of Mannington Mills, Inc. ("Mannington Mills") under an agreement that included non-compete provisions. We allocated $33.6 million of the purchase price to intangible assets and the remainder to inventories and equipment. The assigned intangible asset classes were contractual arrangements, $33.3 million , with an estimated useful life of five years , and intellectual property, $0.3 million , with an estimated useful life of two years . In addition, Mannington Mills was eligible for contingent consideration of up to $9.0 million based on sales of our VCT flooring products for the twelve month periods ending June 30, 2019 and June 30, 2020 (“measurement periods”) compared to a base period of combined AFI and Mannington Mills sales for the 12 month period ended June 30, 2017. The contingent consideration was tiered for each of the separate twelve month measurement periods ranging from consideration of zero to a maximum of $4.5 million in each measurement period. No contingent consideration was due for the twelve month period ending June 30, 2019. No contingent liability has been recognized for the twelve month period ending June 30, 2020 as we concluded that such liability is not probable. Any contingent liability recognized will be recorded as an adjustment to the value of the acquired assets. 2020 2021 2022 2023 2024 Expected annual amortization expense $ 7.0 $ 7.0 $ 3.7 $ 0.4 $ 0.4

Accounts Payable And Accrued Ex

Accounts Payable And Accrued Expenses	12 Months Ended
	Dec. 31, 2019
Payables and Accruals [Abstract]
Accounts Payable And Accrued Expenses	ACCOUNTS PAYABLE AND ACCRUED EXPENSES The following table details amounts related to our accounts payable and accrued expenses: December 31, 2019 December 31, 2018 Payables, trade and other $ 70.5 $ 99.5 Employment costs 13.8 25.0 Other accrued expenses 16.8 16.9 Current operating lease liabilities 3.3 — Total $ 104.4 $ 141.4

Debt

Debt	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt	DEBT The following table presents details related to our debt: December 31, 2019 December 31, 2018 Revolver $ 42.2 $ 25.0 Current portion of Term Loan A — 3.7 Noncurrent portion of Term Loan A — 70.6 Noncurrent portion of finance lease liabilities 0.3 — Total $ 42.5 $ 99.3 In connection with the sale of the wood business, on December 31, 2018, we entered into a credit agreement (the "Credit Agreement"). The Credit Agreement provided us with a $150.0 million secured Credit Facility (the "Credit Facility"), consisting of a $75.0 million revolving facility and a $75.0 million term loan facility. The revolving facility included a $25.0 million sublimit for the issuance of letters of credit and a $15.0 million sublimit for swing line loans. The Credit Facility is scheduled to mature on December 31, 2023. The Credit Agreement provided for an uncommitted accordion feature that allowed us to request an increase in the revolving facility or the term loan facility in an aggregate amount not to exceed $25.0 million . On November 1, 2019, we entered into a First Amendment to the Credit Agreement (the "Amendment"). The Amendment amended the Credit Agreement to, among other things, decrease the size of the Credit Facility to $100.0 million , consisting of a $75.0 million revolving facility and a $25.0 million term loan facility (the "Amended Credit Facility") and converted term loans outstanding in excess of $25.0 million to revolver borrowings. On December 18, 2019, we entered into a Second Amendment to the Credit Agreement which converts the entire Credit Facility of $100.0 million to an asset-based revolving credit facility ("ABL Facility"). Obligations under the ABL Facility are secured by qualifying accounts receivable, inventories and select machinery and equipment of our wholly owned domestic subsidiaries. The Second Amendment also decreased the Letter of Credit sublimit from $25.0 million to $20.0 million . As of December 31, 2019 , total borrowings outstanding under our ABL Facility were $42.2 million , while outstanding letters of credit were $3.9 million . Borrowings under the ABL Facility bear interest at a rate equal to an adjusted base rate or the London Interbank Offered Rate ("LIBOR") plus an applicable margin, which varies according to the net leverage ratio and was 2.25% as of December 31, 2019 . As of December 31, 2019 , the interest rate of 3.94% was determined using LIBOR plus applicable margin. We are required to pay a commitment fee, payable quarterly in arrears, on the average daily unused amount of the revolving ABL Facility, which varies according to the net leverage ratio and was 0.20% as of December 31, 2019 . Outstanding letters of credit issued under the ABL Facility are subject to fees which will be due quarterly in arrears based on the applicable margin described above plus a fronting fee. The total rate for letters of credit was 2.375% as of December 31, 2019 . All obligations under the ABL Facility are guaranteed by each of our wholly owned domestic subsidiaries that individually, or together with its subsidiaries, has assets of more than $1.0 million . All obligations under the ABL Facility, and guarantees of those obligations, are secured by all of the present and future assets of the Company and the guarantors, subject to certain exceptions and exclusions as set forth in the ABL Facility and other security and collateral documents. Due to its stated five-year maturity, this obligation is presented as a long-term obligation in our Consolidated Balance Sheet. However, we may repay this obligation at any time, without penalty. Debt Covenants The Second Amendment modifies a number of covenants that, among other things, requires us to provide the Bank of America (the "Agent") with certain information with respect to the Company and the borrowing base and to maintain or otherwise preserve the collateral in favor of the Agent and further restricts our ability to make acquisitions and modifies restrictions on its ability to repurchase equity. The Second Amendment also modifies covenants as to capital expenditures. In addition, the Second Amendment also amends certain financial covenants applicable to us and our subsidiaries. The ABL Facility requires, among other things, that we maintain a Consolidated Fixed Charge Coverage Ratio (as defined in the Second Amendment) during a Financial Covenant Trigger Period (as defined in the Second Amendment) of at least 1.00 to 1.00 as well as meet a minimum Consolidated EBITDA (as defined in the Second Amendment). As of December 31, 2019 the Fixed Charge Coverage Ratio covenant was not applicable. As of December 31, 2019, we were in compliance with the minimum Consolidated EBITDA covenant.

Pension And Other Postretiremen

Pension And Other Postretirement Benefit Programs	12 Months Ended
	Dec. 31, 2019
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefit Programs	PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS We have defined-benefit pension and other postretirement benefit plans covering eligible employees in North America. Benefits from defined-benefit pension plans are based primarily on an employee’s compensation and years of service. We fund our pension plans when appropriate. We fund postretirement benefits on a pay-as-you-go basis, with the retiree paying a portion of the cost for health care benefits by means of deductibles and contributions. We also have defined-contribution pension plans for eligible employees. Our U.S. defined-benefit pension plans were amended to freeze accruals for remaining salaried non-production employees, effective December 31, 2017. On November 14, 2018, AFI entered into a Stock Purchase Agreement with TZI, an affiliate of American Industrial Partners ("AIP"), to sell our North American wood flooring business. On December 31, 2018, AIP completed the purchase of all of the issued and outstanding shares of Armstrong Wood Products, Inc. As a result of the sale, all plan participants in the Hartco Retiree Welfare Plan, one of AFI's three postretirement plans, were transferred to AHF, LLC, an affiliate of AIP. The transfer of all liabilities for the Hartco Retiree Welfare Plan were effective as of December 31, 2018. Also, as a result of the North American wood flooring business sale, AFI transferred a portion of the Retirement Income Plan ("RIP"), as of December 31, 2018 to AHF, LLC. The U.S. pension plan disclosures show the spun off liability and asset amounts and include the allocated actuarial loss for the affected participants. Defined-Benefit Pension Plans The following tables summarize the balance sheet impact of the pension benefit plans, as well as the related benefit obligations, assets, funded status and rate assumptions. The pension benefits disclosures include both the qualified, funded RIP and the Retirement Benefit Equity Plan, which is a nonqualified, unfunded plan designed to provide pension benefits in excess of the limits defined under Sections 415 and 401(a)(17) of the Internal Revenue Code. The disclosures also include our two Canadian pension plans. U.S. Pension Plans Canadian Pension Plans 2019 2018 2019 2018 Change in benefit obligation: Projected benefit obligations as of January 1 $ 346.4 $ 395.8 $ 15.6 $ 17.8 Liabilities transferred to AHF, LLC — (11.5 ) — — Service cost 2.7 3.8 — — Interest cost 15.0 14.6 0.6 0.6 Foreign currency translation adjustment — — 0.6 (1.2 ) Actuarial loss/(gain) 49.2 (33.4 ) 1.3 0.5 Benefits paid (18.7 ) (22.9 ) (1.8 ) (2.1 ) Projected benefit obligations as of December 31 394.6 346.4 16.3 15.6 Change in plan assets: Fair value of plan assets as of January 1 337.1 390.8 13.6 17.1 Assets to be transferred to AHF, LLC — (8.1 ) — — Actual return on plan assets 62.2 (22.8 ) 1.7 (0.4 ) Employer contribution 0.1 0.1 0.1 0.1 Foreign currency translation adjustment — — 0.6 (1.1 ) Benefits paid (18.7 ) (22.9 ) (1.8 ) (2.1 ) Fair value of plan assets as of December 31 380.7 337.1 14.2 13.6 Funded status of the plans $ (13.9 ) $ (9.3 ) $ (2.1 ) $ (2.0 ) Accumulated benefit obligation as of December 31 $ 393.2 $ 345.1 $ 16.3 $ 15.6 The table below presents the weighted-average assumptions used in computing the benefit obligations and net periodic benefit cost for the defined-benefit pension plans: U.S. Pension Plans Canadian Pension Plans 2019 2018 2019 2018 Weighted average assumptions used to determine benefit obligations as of December 31 Discount rate 3.25 % 4.40 % 3.00 % 3.80 % Rate of compensation increase 3.25 % 3.25 % n/a n/a Weighted average assumptions used to determine net periodic benefit cost for the period: Discount rate 4.40 % 3.75 % 3.80 % 3.30 % Expected return on plan assets 6.30 % 5.85 % 4.90 % 4.90 % Rate of compensation increase 3.25 % 3.25 % n/a n/a Basis of Rate-of-Return Assumption Long-term asset class return assumptions are determined based on the expected performance of the asset classes over 20 years. For the U.S. plans, these forecasted gross returns were reduced by estimated management fees and expenses, yielding a long-term return forecast of 6.30% and 5.85% for the years ended December 31, 2019 and 2018 , respectively. For our Canadian plans, these forecasted gross returns were reduced by estimated management fees and expenses, yielding a long-term return forecast of 4.90% for each of the years ended December 31, 2019 and 2018 . Defined-benefit pension plans with benefit obligations in excess of plan assets were as follows: U.S. Pension Plans Canadian Pension Plans 2019 2018 2019 2018 Projected benefit obligation, December 31 $ 394.6 $ 346.4 $ 15.8 $ 15.2 Accumulated benefit obligation, December 31 393.2 345.1 15.8 15.2 Fair value of plan assets, December 31 380.7 337.1 13.7 13.1 The components of net periodic pension cost for the U.S. defined-benefit pension plans were as follows: Year Ended December 31, 2019 2018 2017 Service cost of benefits earned during the period $ 2.7 $ 3.8 $ 5.4 Interest cost on projected benefit obligation 15.0 14.6 15.4 Expected return on plan assets (21.7 ) (22.2 ) (22.7 ) Amortization of prior service cost — — 0.4 Recognized net actuarial loss 9.7 10.7 10.5 Net periodic pension cost $ 5.7 $ 6.9 $ 9.0 The components of net periodic pension cost (credit) for the Canadian defined-benefit pension plans were as follows: Year Ended December 31, 2019 2018 2017 Interest cost on projected benefit obligation $ 0.6 $ 0.6 $ 0.6 Expected return on plan assets (0.7 ) (0.8 ) (0.9 ) Amortization of net actuarial loss 0.4 0.2 0.2 Net periodic pension cost (credit) $ 0.3 $ — $ (0.1 ) Investment Policies Our primary investment objective is to maintain the funded status of the plans such that the likelihood that we will be required to make significant contributions to the plan is limited. This objective is expected to be achieved by: • Investing a substantial portion of the plan assets in high quality corporate and treasury bonds whose duration is at least equal to that of the plan’s liabilities such that there is a relatively high correlation between the movements of the plan’s liability and asset values. • Investing in publicly traded equities in order to increase the ratio of plan assets to liabilities over time. • Limiting investment return volatility by diversifying among additional asset classes with differing expected rates of return and return correlations. Each asset class used has a defined asset allocation target and allowable range. The tables below show the asset allocation targets and the December 31, 2019 and 2018 positions for each asset class: Target Weight at Position at December 31, December 31, 2019 2019 2018 U.S. Asset Class Fixed income securities 56 % 55 % 59 % Equities 44 % 45 % 41 % Target Weight at Position at December 31, December 31, 2019 2019 2018 Canadian Asset Class Fixed income securities 50 % 50 % 50 % Equities 48 % 48 % 48 % Other 2 % 2 % 2 % Pension plan assets are required to be reported and disclosed at fair value in the financial statements. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Three levels of inputs may be used to measure fair value: Level 1 - Quoted prices in active markets for identical assets or liabilities. Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. The asset’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. The following tables set forth by level within the fair value hierarchy a summary of the U.S. and Canadian defined-benefit pension plan assets, net of payables for administrative expenses, measured at fair value on a recurring basis: Value at December 31, 2019 Level 1 Level 2 Level 3 Total U.S. Plans Fixed income securities $ — $ 207.9 $ — $ 207.9 Equities — 173.2 — 173.2 Other (0.4 ) — — (0.4 ) Net assets measured at fair value $ (0.4 ) $ 381.1 $ — $ 380.7 Value at December 31, 2018 Level 1 Level 2 Level 3 Total U.S. Plans Fixed income securities $ — $ 202.4 $ — $ 202.4 Equities — 143.2 — 143.2 Other (0.4 ) — — (0.4 ) Net assets measured at fair value $ (0.4 ) $ 345.6 $ — 345.2 Assets to be transferred to AHF, LLC (8.1 ) Net assets $ 337.1 Value at December 31, 2019 Level 1 Level 2 Level 3 Total Canadian Plans Fixed income securities $ — $ 7.0 $ — $ 7.0 Equities — 6.9 — 6.9 Other 0.3 — — 0.3 Net assets measured at fair value $ 0.3 $ 13.9 $ — $ 14.2 Value at December 31, 2018 Level 1 Level 2 Level 3 Total Canadian Plans Fixed income securities $ — $ 6.9 $ — $ 6.9 Equities — 6.5 — 6.5 Other 0.2 — — 0.2 Net assets measured at fair value $ 0.2 $ 13.4 $ — $ 13.6 Following is a description of the valuation methodologies used for assets. Fixed income securities — Consists of registered investment funds, common and collective trust funds, and segregated funds investing in fixed income securities tailored to institutional investors. The fair values of the investments in this class are based on the underlying securities in each fund’s portfolio, which is the amount the fund would receive for the security upon a current sale. Equities — Consists of investments in funds investing in equities tailored to institutional investors. The fair value of each fund is based on the underlying securities in each fund’s portfolio, which is the amount the fund would receive for the security upon a current sale. Other — Consists of cash and cash equivalents and other payables and receivables (net). The carrying amounts of cash and cash equivalents approximate fair value due to the short-term maturity of these instruments. The carrying amounts of payables and receivables approximate fair value due to the short-term nature of these instruments. Defined-Benefit Postretirement Benefit Plans The following tables summarize the balance sheet impact of the postretirement benefit plans, as well as the related benefit obligations, assets, funded status and rate assumptions. 2019 2018 Change in benefit obligation: Projected benefit obligations as January 1 $ 62.2 $ 76.4 Service cost 0.2 0.4 Interest cost 2.5 2.6 Plan participants' contributions 2.2 1.6 Plan amendments (2.6 ) — Effect of curtailment — (0.2 ) Actuarial loss/(gain) 10.0 (9.0 ) Benefits paid (9.2 ) (9.6 ) Projected benefit obligation as of December 31 65.3 62.2 Change in plan assets: Fair value of plan assets as January 1 — — Employer contribution 7.0 8.0 Plan participants' contribution 2.2 1.6 Benefits paid (9.2 ) (9.6 ) Fair value of plan assets as of December 31 — — Funded status of the plans $ (65.3 ) $ (62.2 ) The table below presents the weighted-average assumptions used in computing the benefit obligations and net periodic benefit cost for the U.S. defined-benefit postretirement benefit plans: 2019 2018 Weighted average discount rate used to determine benefit obligations as of December 31 3.20 % 4.30 % Weighted average discount rate used to determine net periodic benefit cost 4.30 % 3.60 % The components of net periodic postretirement (benefit) cost were as follows: Year Ended December 31, 2019 2018 2017 Service cost of benefits earned during the period $ 0.2 $ 0.4 $ 0.4 Interest cost on accumulated postretirement benefit obligations 2.5 2.6 3.2 Amortization of net actuarial (gain) (3.1 ) (2.5 ) (2.4 ) Net periodic postretirement (benefit) cost $ (0.4 ) $ 0.5 $ 1.2 For measurement purposes, an average rate of annual increase in the per capita cost of covered health care benefits of 7.1% for pre-65 retirees and 6.5% to 8.2% for post-65 retirees (depending on plan type) was assumed for 2020 , decreasing ratably to an ultimate rate of 4.5% by 2028. Assumed health care cost trend rates can have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in assumed health care cost trend rates would have the following effects on the defined-benefit postretirement benefit plans for 2020 : One percentage point Increase Decrease (Decrease) increase on total service and interest cost components $ — $ — (Decrease) increase on postretirement benefit obligation (0.9 ) 1.2 Financial Statement Impacts Amounts recognized in assets and (liabilities) on the Consolidated Balance Sheets at year end consist of: U.S. Pension Benefits Canadian Pension Benefits 2019 2018 2019 2018 Pension benefit liabilities $ (13.9 ) $ (9.3 ) $ (2.1 ) $ (2.0 ) Net amount recognized $ (13.9 ) $ (9.3 ) $ (2.1 ) $ (2.0 ) Postretirement Benefits 2019 2018 Accounts payable and accrued expenses $ (5.6 ) $ (6.5 ) Postretirement benefit liabilities (59.7 ) (55.7 ) Net amount recognized $ (65.3 ) $ (62.2 ) Pre-tax amounts recognized in AOCI at year end for our pension and postretirement benefit plans consist of: U.S. Pension Benefits Canadian Pension Benefits 2019 2018 2019 2018 Net actuarial (loss) $ (123.1 ) $ (124.2 ) $ (4.8 ) $ (4.7 ) Postretirement Benefits 2019 2018 Net actuarial gain $ 30.5 $ 41.0 We expect to amortize $10.1 million and $0.4 million of previously unrecognized net actuarial losses into U.S. and Canadian plan pension cost, respectively, in 2020 . We expect to amortize $2.4 million of previously unrecognized net actuarial gains into postretirement benefit cost in 2020 . We expect to contribute $0.1 million each to our U.S. and Canadian defined-benefit pension plans and $5.6 million to our U.S. postretirement benefit plans in 2020 . The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid over the next ten years for our U.S. and Canadian plans: U.S. Pension Benefits Canadian Pension Benefits Postretirement Benefits 2020 $ 19.1 $ 1.4 $ 5.6 2021 19.1 1.3 5.3 2022 20.1 1.2 5.0 2023 21.0 1.2 4.6 2024 21.6 1.1 4.3 2025-2029 114.4 5.3 17.5 These estimated benefit payments are based on assumptions about future events. Actual benefit payments may vary significantly from these estimates. Costs for defined-contribution pension plans were $5.5 million and $6.2 million in 2019 and 2018 , respectively.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	DERIVATIVE FINANCIAL INSTRUMENTS We are exposed to market risk from changes in foreign exchange rates that could impact our financial condition, results of operations and cash flows. We enter into derivative contracts, including contracts to hedge our foreign currency exchange rate exposures. Exposure to individual counterparties is controlled and derivative financial instruments are entered into with a diversified group of major financial institutions. Forward swap contracts are entered into for periods consistent with underlying exposure and do not constitute positions independent of those exposures. At inception, hedges designated as hedging instruments are formally documented as either (1) a hedge of a forecasted transaction or “cash flow” hedge, or (2) a hedge of the fair value of a recognized liability or asset or “fair value” hedge. Derivatives are formally assessed both at inception and at least quarterly thereafter, to ensure that derivatives used in hedging transactions are highly effective in offsetting changes in either the fair value or cash flows of the hedged item. If it is determined that a derivative ceases to be a highly effective hedge, or if the anticipated transaction is no longer probable of occurring, hedge accounting is discontinued, and any future mark-to-market adjustments are recognized in earnings. We use derivative financial instruments as risk management tools and not for speculative trading purposes. Counterparty Risk We only enter into derivative transactions with established counterparties having a credit rating of BBB or better. Counterparty credit default swap levels and credit ratings are monitored on a regular basis in an effort to reduce the risk of counterparty default. All of our derivative transactions with counterparties are governed by master International Swap and Derivatives Association agreements (“ISDAs”) with netting arrangements. These agreements can limit exposure in situations where gain and loss positions are outstanding with a single counterparty. We neither post nor receive cash collateral with any counterparty for our derivative transactions. These ISDAs do not have credit contingent features; however, a default under our Credit Facility would trigger a default under these agreements. Currency Rate Risk – Sales and Purchases We manufacture and sell our products in a number of countries and, as a result, we are exposed to movements in foreign currency exchange rates. To a large extent, our global manufacturing and sales provide a natural hedge of foreign currency exchange rate movement, as foreign currency expenses generally offset foreign currency revenues. We manage our cash flow exposures on a net basis and use derivatives to hedge the majority of our unmatched foreign currency cash inflows and outflows. Before considering the impacts of any hedging, our major foreign currency exposures as of December 31, 2019 , based on operating profits by currency, are from the Canadian Dollar, the Chinese Renminbi, and the Australian Dollar. We use foreign currency forward exchange contracts to reduce our exposure to the risk that the eventual net cash inflows and outflows resulting from the sale of products to foreign customers and purchases from foreign suppliers will be adversely affected by changes in exchange rates. These derivative instruments are used for forecasted transactions and are classified as cash flow hedges. These cash flow hedges are executed quarterly, generally up to 18 months forward. The notional amount of these hedges was $23.1 million and $24.9 million as of December 31, 2019 and 2018 , respectively. Gains and losses on these instruments are recorded in other comprehensive income (loss), to the extent effective, until the underlying transaction is recognized in earnings. The mark-to-market gains or losses on ineffective portions of hedges are recognized in SG&A expense. Currency Rate Risk – Intercompany Loans and Dividends We may use foreign currency forward exchange contracts to hedge exposures created by cross-currency intercompany loans and dividends. The translation adjustments related to these loans are recorded in other expense, net . The offsetting gains and losses on the related derivative contracts are also recorded in other expense, net . These contracts are decreased or increased as repayments are made or additional intercompany loans are extended or adjusted for intercompany dividend activity as necessary. The notional amount of these hedges was $16.6 million and $17.7 million as of December 31, 2019 and 2018 , respectively. Financial Statement Impacts The following table presents the classification of derivative assets and liabilities within the Consolidated Balance Sheets. The foreign exchange contracts outstanding are presented gross as we have not netted derivative assets with derivative liabilities: December 31, 2019 December 31, 2018 Assets (1) Liabilities (2) Assets (1) Liabilities (2) Derivatives designated as cash flow hedging instruments Foreign exchange contracts $ — $ 0.4 $ 1.1 $ — Derivatives not designated as hedging instruments Foreign exchange contracts — 0.3 — — Total $ — $ 0.7 $ 1.1 $ — _____________ (1) Derivative assets are classified within prepaid expenses and other current assets as well as other non-current assets. (2) Derivative liabilities are classified within accounts payable and accrued expenses as well as other long-term liabilities. The following tables summarize the impact of the effective portion of derivative instruments on the Consolidated Statements of Operations and Comprehensive Income (Loss): (Losses) gains recognized in other comprehensive income ("OCI") (3) Gains (losses) reclassified from AOCI (3) Year Ended December 31, Year Ended December 31, 2019 2018 2017 2019 2018 2017 Cash flow hedges Foreign exchange contracts $ (0.8 ) $ 2.0 $ (1.9 ) $ 0.7 $ (0.3 ) $ (0.4 ) Gains (losses) recognized in income (3) Year Ended December 31, 2019 2018 2017 Non-designated hedges Foreign exchange contracts $ 0.1 $ 1.5 $ (2.0 ) _____________ (3) Gains (losses) were included in net sales and cost of goods sold. As of December 31, 2019 , the amount of existing gains in AOCI expected to be recognized in earnings over the next twelve months is $0.3 million .

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS Financial instruments are required to be disclosed at fair value in the financial statements. The fair value of cash, accounts and notes receivable and accounts payable and accrued expenses approximate their carrying amounts due to the short-term maturities of these assets and liabilities. Fair Value at December 31, 2019 Carrying amount Level 1 Level 2 Level 3 Total Financial assets Foreign exchange contracts $ — $ — $ — $ — $ — Total financial assets $ — $ — $ — $ — $ — Financial liabilities Foreign exchange contracts $ (0.7 ) $ (0.7 ) $ — $ — $ (0.7 ) Total revolver (42.2 ) — (42.2 ) — (42.2 ) Total financial liabilities $ (42.9 ) $ (0.7 ) $ (42.2 ) $ — $ (42.9 ) Fair Value at December 31, 2018 Carrying amount Level 1 Level 2 Level 3 Total Financial assets Foreign exchange contracts $ 1.1 $ 1.1 $ — $ — $ 1.1 Total financial assets $ 1.1 $ 1.1 $ — $ — $ 1.1 Financial liabilities Total revolver $ (99.3 ) $ — $ (99.3 ) $ — $ (99.3 ) Total financial liabilities $ (99.3 ) $ — $ (99.3 ) $ — $ (99.3 ) The fair values of our net foreign currency contracts were estimated from market quotes, which are considered to be Level 1 inputs. Total revolver as of December 31, 2019 and 2018, consisted of the outstanding borrowings under the Credit Facility dated December 31, 2018 and amended November 1, 2019, and December 18, 2019. Borrowings under the Credit Facility are quoted in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the liability (Level 2 inputs) and accordingly, the carrying amount approximates fair value. We do not have any assets or liabilities that are valued using Level 3 unobservable inputs.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Shareholders' Equity	STOCKHOLDERS' EQUITY Common Stock Repurchase Plan On March 6, 2017, we announced that our board of directors had approved a share repurchase program pursuant to which we were authorized to repurchase up to $50.0 million of our outstanding shares of common stock. From inception of the share repurchase program through May 3, 2019, we repurchased approximately 2.5 million shares for a total cost of $41.0 million , with an average price of $16.23 per share. On May 3, 2019, we announced that our board of directors had authorized an increased share repurchase program for an additional $50.0 million beyond the $41.0 million already repurchased under the prior share repurchase program, effective immediately. Repurchases under the new program could be made through open market, block, and privately negotiated transactions, including Rule 10b5-1 plans, at times and in such amounts as management deemed appropriate, subject to market and business conditions, regulatory requirements and other factors. On May 17, 2019, we announced the commencement of a modified "Dutch auction" self-tender offer to repurchase up to $50.0 million in cash of shares of our common stock. As a result of the auction, on June 21, 2019 we purchased 4,504,504 shares of common stock at a purchase price of $11.42 per share, for a total cost of $51.4 million , including fees and expenses. After the completion of the tender offer, we have no remaining authorization to purchase further shares. Accumulated Other Comprehensive (Loss) Income The amounts and related tax effects allocated to each component of AOCI in 2019 , 2018 and 2017 are presented in the table below. Pre-tax Amount Tax Impact After-tax Amount 2019 Foreign currency translation adjustments $ (2.2 ) $ — $ (2.2 ) Derivative adjustments (1.5 ) 0.1 (1.4 ) Pension and postretirement adjustments (9.5 ) — (9.5 ) Total other comprehensive (loss) $ (13.2 ) $ 0.1 $ (13.1 ) 2018 Foreign currency translation adjustments $ (6.0 ) $ — $ (6.0 ) Derivative adjustments 2.3 (0.6 ) 1.7 Pension and postretirement adjustments 8.5 (0.7 ) 7.8 Total other comprehensive income $ 4.8 $ (1.3 ) $ 3.5 2017 Foreign currency translation adjustments $ 7.2 $ — $ 7.2 Derivative adjustments (2.0 ) 0.5 (1.5 ) Pension and postretirement adjustments 2.2 (0.6 ) 1.6 Total other comprehensive income $ 7.4 $ (0.1 ) $ 7.3 The following table summarizes the activity, by component, related to the change in AOCI for December 31, 2019 and 2018 : Foreign Currency Translation Adjustments Derivative Adjustments Pension and Postretirement Adjustments Total Accumulated Other Comprehensive Income (Loss) Balance, December 31, 2017 $ 7.7 $ (1.0 ) $ (59.2 ) $ (52.5 ) Cumulative effect of adoption of ASU 2018-02 as of January 1 — 0.1 (12.7 ) (12.6 ) Other comprehensive (loss) income before reclassifications, net of tax impact of $ — , ($0.5), $1.0 and $0.5 (6.0 ) 1.4 1.2 (3.4 ) Amounts reclassified from accumulated other comprehensive income — 0.3 6.6 6.9 Net current period other comprehensive (loss) income (6.0 ) 1.7 7.8 3.5 Balance, December 31, 2018 $ 1.7 $ 0.8 $ (64.1 ) $ (61.6 ) Other comprehensive (loss) before reclassifications, net of tax impact of $ —, $0.1, $ — and $0.1 (2.2 ) (0.7 ) (16.5 ) (19.4 ) Amounts reclassified from accumulated other comprehensive (loss) income — (0.7 ) 7.0 6.3 Net current period other comprehensive (loss) (2.2 ) (1.4 ) (9.5 ) (13.1 ) Balance, December 31, 2019 $ (0.5 ) $ (0.6 ) $ (73.6 ) $ (74.7 ) The amounts reclassified from AOCI and the affected line item of the Consolidated Statements of Operations are presented in the table below. Year Ended December 31, 2019 2018 2017 Affected Line Item Derivative adjustments Foreign exchange contracts - purchases $ (0.4 ) $ (0.1 ) $ 0.1 Cost of goods sold Foreign exchange contracts - purchases — — (0.1 ) Earnings (loss) from discontinued operations Foreign exchange contracts - sales (0.3 ) 0.4 0.3 Net sales Foreign exchange contracts - sales — 0.1 0.3 Earnings (loss) from discontinued operations Total (income)/expense before tax (0.7 ) 0.4 0.6 Tax impact — (0.1 ) (0.2 ) Income tax expense (benefit) Tax impact — — — Earnings (loss) from discontinued operations Total (income)/expense, net of tax (0.7 ) 0.3 0.4 Pension and postretirement adjustments Prior service cost amortization — — 0.4 Other expense, net Amortization of net actuarial loss 7.0 8.4 8.4 Other expense, net Amortization of net actuarial loss — (0.1 ) — Earnings (loss) from discontinued operations Total expense before tax 7.0 8.3 8.8 Tax impact — (1.8 ) (1.8 ) Income tax expense (benefit) Tax impact — 0.1 — Earnings (loss) from discontinued operations Total expense, net of tax 7.0 6.6 7.0 Total reclassifications for the period $ 6.3 $ 6.9 $ 7.4

Litigation And Related Matters

Litigation And Related Matters	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Litigation And Related Matters	LITIGATION AND RELATED MATTERS Environmental Matters Environmental Compliance Our manufacturing and research facilities are affected by various federal, state and local requirements relating to the discharge of materials and the protection of the environment. We make expenditures necessary for compliance with applicable environmental requirements at each of our operating facilities. These regulatory requirements continually change, therefore we cannot predict with certainty future expenditures associated with compliance with environmental requirements. Environmental Sites In connection with our current or legacy manufacturing operations, or those of former owners, we may from time to time become involved in the investigation, closure and/or remediation of existing or potential environmental contamination under the Comprehensive Environmental Response, Compensation and Liability Act, and state or international Superfund and similar type environmental laws. For those matters, we may have rights of contribution or reimbursement from other parties or coverage under applicable insurance policies, however, we cannot predict with certainty the future identification of or expenditure for any investigation, closure or remediation of any environmental site. Summary of Financial Position There were no material liabilities recorded as of December 31, 2019 and December 31, 2018 for potential environmental liabilities that we consider probable and for which a reasonable estimate of the probable liability could be made. Antidumping and Countervailing Duty Cases In October 2010, a coalition of U.S. producers of multilayered wood flooring (not including AWI and its subsidiaries) (“Petitioners”) filed petitions seeking antidumping duties (“AD”) and countervailing duties (“CVD”) with the United States Department of Commerce (“DOC”) and the United States International Trade Commission against imports of multilayered wood flooring from China. The AD and CVD petitions ultimately resulted in DOC issuing AD and CVD orders (the “Orders”) against multilayered wood flooring imported into the U.S. from China. These Orders and the associated additional duties they have imposed have been the subject of extensive litigation, both at DOC and in the U.S. courts. Our consistent view through the course of this matter has been, and remains, that our imports were neither dumped nor subsidized. Until October 2014, AWI operated a plant in Kunshan, China (“Armstrong Kunshan”) that manufactured multilayered wood flooring for export to the U.S. As a result, we have been directly involved in the multilayered wood flooring-related litigation at DOC and in the U.S. courts. Prior to the sale of our North American wood flooring business on December 31, 2018 (“Wood Sale”), we produced multilayered wood flooring domestically and imported multilayered wood flooring from third party suppliers in China. In connection with the Wood Sale, we retained the right to elect to defend and control the defense of the above matters, as well as the right to any related refunds or payments, and agreed to indemnify and hold the buyer from and against any and all duties, penalties, fines or other charges. Armstrong Kunshan was not sold as part of the Wood Sale but was sold to a separate buyer in December 2018. We previously accrued for potential liability for imports of Armstrong Kunshan products made in the (i) second administrative review period (which covered imports of multilayered wood flooring made between December 1, 2012 and November 30, 2013 (AD) and between January 1, 2012 and December 31, 2012 (CVD), and (ii) third administrative review period (which covered all multilayered wood flooring imports made between December 1, 2013 and November 30, 2014 (AD) and between January 1, 2013 and December 31, 2013 (CVD)). During the second quarter of 2019, we resolved our potential AD liability for the second and third administrative review periods outside of litigation pursuant to a settlement agreement with the Petitioners. As a result, the Petitioners did not appeal the Court of International Trade’s July 3, 2018 ruling ordering DOC to revoke the AD order with respect to Armstrong Kunshan. Accordingly, the revocation of the AD order with respect to Armstrong Kunshan has become final and DOC has instructed U.S. Customs and Border Protection (“CBP”) to liquidate, without imposition of AD duties, entries of subject merchandise produced and exported by Armstrong Kunshan. CBP began liquidating the Armstrong Kunshan entries without imposition of AD duties in May 2019, and we believe this process has been substantially completed. There have been and there are expected to be subsequent administrative reviews for which we were not and are not expected to be subject; however, we are liable for other manufacturers’ applicable rates to the extent we were importer of record of products covered by the AD/CVD orders during such periods. While we accrue for potential AD/CVD liability for these periods, such amounts are and are expected to remain immaterial. Other Claims We are involved in various lawsuits, claims, investigations and other legal matters from time to time that arise in the ordinary course of conducting business, including matters involving our products, intellectual property, relationships with suppliers, distributors and competitors, employees and other matters. For example, we are currently a party to various litigation matters that involve product liability, tort liability and other claims under a wide range of allegations, including illness due to exposure to certain chemicals used in the workplace, or medical conditions arising from exposure to product ingredients or the presence of trace contaminants. In some cases, these allegations involve multiple defendants and relate to legacy products that we and other defendants purportedly manufactured or sold. We believe these claims and allegations to be without merit and intend to defend them vigorously. For these matters, we also may have rights of contribution or reimbursement from other parties or coverage under applicable insurance policies. On November 15, 2019, a shareholder filed a putative class action complaint in the United States District Court for the Central District of California alleging violations of Section 10(b) of the Securities Exchange Act of 1934 and Rule 10b-5, promulgated thereunder, based on alleged false and/or misleading statements or omissions made between May 6, 2018 and November 4, 2019. We cannot predict the duration or outcome of this suit at this time. As a result, we are unable to estimate the reasonably possible loss arising from this lawsuit. The Company intends to vigorously defend itself in this matter. While complete assurance cannot be given to the outcome of these proceedings, we do not believe that any of these matters, individually or in the aggregate, will have a material adverse effect on our financial condition, results of operations or cash flows.

Quarterly Financial Information

Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (Unaudited)	QUARTERLY FINANCIAL INFORMATION (UNAUDITED) 2019 Quarter Ended March 31 June 30 September 30 December 31 Net sales $ 141.7 $ 177.7 $ 165.6 $ 141.3 Gross profit 22.1 36.2 11.8 15.2 (Loss) earnings from continuing operations (16.6 ) 5.3 (29.7 ) (27.9 ) Per share of common stock: Basic $ (0.63 ) $ 0.20 $ (1.36 ) $ (1.27 ) Diluted (0.63 ) 0.20 (1.36 ) (1.27 ) 2018 Quarter Ended March 31 June 30 September 30 December 31 Net sales $ 164.3 $ 201.2 $ 208.9 $ 153.8 Gross profit 29.3 43.7 45.2 25.0 (Loss) earnings from continuing operations (10.4 ) 2.9 3.3 (14.9 ) Per share of common stock: Basic $ (0.40 ) $ 0.11 $ 0.13 $ (0.57 ) Diluted (0.40 ) 0.11 0.13 (0.57 ) The amounts above are reported on a continuing operations basis. The sum of the quarterly earnings per share data may not equal the total year amounts due to changes in the average shares outstanding and, for diluted data, the exclusion of the anti-dilutive effect in certain quarters.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Reserves	12 Months Ended
	Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Reserves	SCHEDULE II Armstrong Flooring, Inc. Valuation and Qualifying Reserves ( Dollars in millions ) Balance at beginning of year Additions charged to earnings Deductions ASC 606 Cumulative Catchup Adjustment Balance at end of year 2017 Provision for bad losses $ 0.3 $ 0.1 $ — $ — $ 0.4 Provision for discounts 4.8 55.3 (54.1 ) — 6.0 Provision for warranties 5.1 9.4 (8.9 ) — 5.6 Reserve for inventories 0.7 0.4 (0.2 ) — 0.9 2018 Provision for bad losses $ 0.4 $ 0.2 $ — $ — $ 0.6 Provision for discounts 6.0 61.0 (59.7 ) (1.7 ) 5.6 Provision for warranties 5.6 6.6 (7.5 ) 1.7 6.4 Reserve for inventories 0.9 0.3 (0.6 ) — 0.6 2019 Provision for bad losses $ 0.6 $ 0.3 $ (0.1 ) $ — $ 0.8 Provision for discounts 5.6 72.1 (69.3 ) — 8.4 Provision for warranties 6.4 9.4 (6.8 ) — 9.0 Reserve for inventories 0.6 3.9 (3.1 ) — 1.4

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Business Armstrong Flooring, Inc. ("AFI") is a leading global producer of resilient flooring products for use primarily in the construction and renovation of residential, commercial and institutional buildings. AFI designs, manufactures, sources and sells resilient flooring products in North America and the Pacific Rim. When we refer to "AFI," "the Company," "we," "our," and "us" in this report, we are referring to Armstrong Flooring, Inc., a Delaware corporation, and its consolidated subsidiaries. Former Parent Separation On April 1, 2016, we became an independent company as a result of the separation by Armstrong World Industries, Inc. ("AWI"), a Pennsylvania corporation, of its Resilient Flooring and Wood Flooring segments from its Building Products segment (the "Separation"). The Separation was effected by allocating the assets and liabilities related primarily to the Resilient Flooring and Wood Flooring segments to AFI and then distributing the common stock of AFI to AWI’s shareholders (the "Distribution"). The Separation and Distribution (together, the "Spin-off") resulted in AFI and AWI becoming two independent, publicly traded companies, with AFI owning and operating the Resilient Flooring and Wood Flooring segments and AWI continuing to own and operate a ceilings business.
Consolidation Policy	Consolidation Policy The Consolidated Financial Statements and accompanying data in this report include the accounts of AFI and its subsidiaries. All significant intercompany transactions have been eliminated from the Consolidated Financial Statements.
Use of Estimates	Use of Estimates We prepare our financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"), which requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets, liabilities, revenues and expenses. When preparing an estimate, management determines the amount based upon the consideration of relevant internal and external information. Actual results may differ from these estimates.
Revenue Recognition	Revenue Recognition We recognize revenue when control of the promised goods is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. Our primary performance obligation to our customers is the delivery of flooring products pursuant to purchase orders. Control of the products we sell transfers to our customers at the point in time when the goods are shipped. Our standard sales terms are primarily Free On Board (“FOB”) shipping point. Our typical payment terms are 30 days and our sales arrangements do not contain any significant financing component for our customers. Our customer arrangements do not generate contract assets or liabilities that are material to the Consolidated Financial Statements. Each purchase order sets forth the transaction price for the products purchased under that arrangement. Some customer arrangements include variable consideration, such as volume rebates, some of which depend upon our customers meeting specified performance criteria, such as a purchasing level over a period of time. We use judgment to estimate the most likely amount of variable consideration at each reporting date. We generally do not incur any incremental costs to obtain or fulfill our customer contracts that require capitalization and expense such costs as incurred when the amortization period is less than one year. We disaggregate revenue based on customer geography as this category represents the most appropriate depiction of how the nature, timing and uncertainty of revenues and cash flows are impacted by economic factors. See Note 3 to the Consolidated Financial Statements for our revenues disaggregated by geography.
Warranties	Warranties We provide our customers with a product warranty that provides assurance that the products we sell meet standard specifications and are free of defects. We maintain a reserve for claims incurred under our standard product warranty programs. We allocate a portion of the transaction price for each sale to our performance obligation to provide service type warranties to our customers.
Sales Incentives	Sales Incentives Sales incentives to customers are reflected as a reduction of net sales.
Shipping and Handling Costs	Shipping and Handling Costs We treat shipping and handling that occurs after our customer obtains control of the products as a fulfillment activity and not as a promised service. Shipping and handling costs are reflected as a component of cost of goods sold.
Advertising Costs	Advertising Costs We recognize advertising expenses as they are incurred.
Pension and Postretirement Benefits	Pension and Postretirement Benefits We have benefit plans that provide for pension, medical and life insurance benefits to certain eligible employees when they retire from active service. The cost of plan amendments that provide for benefits already earned by plan participants is amortized over the expected future working lifetime or the life expectancy of plan participants. A market-related value of plan assets methodology is utilized in the calculation of expected return on assets. The methodology recognizes gains and losses on long duration bonds immediately, while gains and losses on other assets are recognized in the calculation over a five-year period. We use a December 31 measurement date for our pension and postretirement benefit plans.
Taxes	Taxes The provision for income taxes has been determined using the asset and liability approach of accounting for income taxes to reflect the expected future tax consequences of events recognized in the financial statements. Deferred income tax assets and liabilities are recognized by applying enacted tax rates to temporary differences that exist as of the balance sheet date which result from differences in the timing of reported taxable income between tax and financial reporting. We reduce the carrying amounts of deferred tax assets by a valuation allowance if, based on the available evidence, it is more likely than not that such assets will not be realized. The need to establish valuation allowances for deferred tax assets is assessed quarterly. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more likely than not standard for all periods, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. This assessment considers, among other matters, the nature, frequency and severity of current and cumulative losses, forecasts of future profitability and foreign source income, the duration of statutory carryforward periods, and our experience with operating loss and tax credit carryforward expirations. A history of cumulative losses is a significant piece of negative evidence used in our assessment. If a history of cumulative losses is incurred for a tax jurisdiction, forecasts of future profitability are not used as positive evidence related to the realization of the deferred tax assets in the assessment. We recognize the tax benefits of an uncertain tax position only if those benefits are more likely than not to be sustained based on existing tax law. Additionally, we establish a reserve for tax positions that are more likely than not to be sustained based on existing tax law, but uncertain in the ultimate benefit to be sustained upon examination by the relevant taxing authorities. Unrecognized tax benefits are subsequently recognized at the time the more likely than not recognition threshold is met, the tax matter is effectively settled or the statute of limitations for the relevant taxing authority to examine and challenge the tax position has expired, whichever is earlier. We account for all interest and penalties on uncertain income tax positions as income tax expense. Taxes collected from customers and remitted to governmental authorities are reported on a net basis.
Earnings per Share	Earnings per Share Basic earnings per share is computed by dividing the earnings attributable to common shares by the sum of the weighted average number of shares of common stock outstanding during the period and the weighted average number of stock-based awards that have vested but not yet been issued during the period. Diluted earnings per share reflects the potential dilution of securities that could share in the earnings.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include cash on hand and short-term investments that have maturities of three months or less when purchased.
Receivables	Receivables We sell the vast majority of our products to select, pre-approved customers using customary trade terms that allow for payment in the future. Customer trade receivables and miscellaneous receivables, net of allowances for doubtful accounts, customer credits and warranties are reported in accounts and notes receivable on a net basis. Cash flows from the collection of receivables are classified as operating cash flows on the Consolidated Statements of Cash Flows. We establish credit-worthiness prior to extending credit. We estimate the recoverability of receivables each period. This estimate is based upon new information in the period, which can include the review of available financial statements and forecasts, as well as discussions with legal counsel and the management of the debtor company. We provide allowances as events occur which impact the collectability of the receivable. Account balances are charged off against the allowance when the potential for recovery is considered remote. We do not have any off-balance-sheet credit exposure related to our customers.
Inventories	Inventories U.S. inventories are valued at the lower of cost or market, and cost is determined using the last-in, first-out ("LIFO") method of accounting. Non-U.S. inventories are valued at the lower of cost or net realizable value, and cost is determined using the first-in, first-out ("FIFO") method of accounting.
Property Plant and Equipment	Property Plant and Equipment Property, plant and equipment is recorded at cost reduced by accumulated depreciation. Depreciation expense is recognized on a straight-line basis over assets’ estimated useful lives. Machinery and equipment includes manufacturing equipment (depreciated over 3 to 15 years ), computer equipment (depreciated over 3 to 5 years ) and office furniture and equipment (depreciated over 5 to 7 years ). Within manufacturing equipment, assets that are subject to accelerated obsolescence or wear, such as tooling and engraving equipment, are depreciated over shorter periods ( 3 to 7 years ). Heavy production equipment, such as conveyors, kilns and mixers, are depreciated over longer periods ( 10 to 15 years ). Buildings are depreciated over 15 to 30 years , depending on factors such as type of construction and use. Computer software is amortized over 3 to 7 years . Property, plant and equipment is tested for impairment when indicators of impairment exist, such as operating losses and/or negative cash flows. If an evaluation of the undiscounted future cash flows generated by an asset group indicates impairment, the asset group is written down to its estimated fair value, which is based on its discounted future cash flows. The principal assumption used in these impairment tests is future cash flows, which are derived from those used in our operating plan and strategic planning processes.
Intangible Assets	Intangible Assets Our indefinite-lived intangible assets are primarily trademarks which are integral to our corporate identity and expected to contribute indefinitely to our corporate cash flows. We conduct our annual impairment test for indefinite-lived intangible assets during the fourth quarter and we conduct interim impairment tests if indicators of potential impairment exist. An impairment is recognized if the carrying amount of the asset exceeds its fair value. We first perform a qualitative assessment to determine if it is necessary to perform a quantitative impairment test. If a quantitative impairment test is deemed necessary, the method used to determine the fair value of our indefinite-lived intangible assets is the relief-from-royalty method. The principal assumptions used in our application of this method are revenue growth rate, discount rate and royalty rate. Revenue growth rates are derived from those used in our operating plan and strategic planning processes. The discount rate assumption is calculated based upon an estimated weighted average cost of capital, which we believe reflects the overall level of inherent risk and the rate of return a market participant would expect to achieve. The royalty rate assumption represents the estimated contribution of the intangible asset to overall profits. The method used for valuing our indefinite-lived intangible assets did not change from prior periods. Our long-lived intangible assets are primarily contractual arrangements (amortized over 5 years), wh ich includes non-compete agreements, and intellectual property (amortized over 2 to 15 years), which includes developed technology and patents. We review long-lived intangible assets for impairment if indicators of potential impairment exist, such as operating losses and/or negative cash flows. If an evaluation of the undiscounted future cash flows generated by the asset indicates impairment, the asset group is written down to its estimated fair value, which is based on its discounted future cash flows. The principal assumption used in these impairment tests is future cash flows, which are derived from those used in our operating plan and strategic planning processes.
Foreign Currency Transactions	Foreign Currency Transactions For our subsidiaries with non-U.S. dollar functional currency, assets and liabilities are translated at period-end exchange rates. Revenues and expenses are translated at exchange rates effective during each month. Foreign currency translation gains or losses are included as a component of accumulated other comprehensive income ("AOCI") within equity. Gains or losses on foreign currency transactions are recognized through net income (loss).
Stock-Based Employee Compensation	Stock-Based Employee Compensation We issue stock-based compensation to certain employees and non-employee directors in different forms, including performance stock awards ("PSAs"), performance stock units ("PSUs"), and restricted stock units ("RSUs"). We record stock-based compensation expense based on an estimated grant-date fair value. The expense is reflected as a component of selling, general and administrative (“SG&A”) expenses on our Consolidated Statements of Operations. Stock-based compensation expense includes an estimate for forfeitures and anticipated achievement levels and is generally recognized on a straight-line basis over the vesting period for the entire award.
Net AWI Investment	Net AWI Investment The Consolidated Statements of Stockholders' Equity include net cash transfers and other property transfers between AWI and AFI. The initial net AWI investment balance included assets and liabilities incurred by AWI on behalf of AFI such as accrued liabilities related to corporate allocations including administrative expenses for legal, accounting, treasury, information technology, human resources and other services. Other assets and liabilities recorded by AWI, whose related income and expense had been allocated to AFI, were also included in net AWI investment. The impact of the Spin-off on equity is reflected in net transfers from AWI on the Consolidated Statements of Stockholders' Equity.
Recently Adopted Accounting Standards and Recently Issued Accounting Standards	Recently Adopted Accounting Standards On January 1, 2018, we adopted Accounting Standards Codification ("ASC") 606, " Revenue from Contracts with Customers," and all the related amendments. The impact of the standard is limited to our accounting for warranties and returns. We adopted the standard using the modified retrospective transition method and we recorded a cumulative catch up adjustment to increase accumulated deficit in the amount of $4.1 million , increase prepaid expenses and other current assets by $0.4 million and decrease accounts receivable, net by $4.5 million . The adoption of the standard did not have a material impact on our results of operations or cash flows, but did result in new disclosures. On January 1, 2019, we adopted ASU 2016-02, " Leases ." The guidance, and subsequent amendments issued, requires a lessee to recognize the assets and liabilities that arise from a lease agreement. Specifically, this new guidance requires lessees to recognize a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term, with limited exceptions. Adoption of the new standard resulted in the recording of lease assets and lease liabilities of $9.2 million as of January 1, 2019. December 31, 2018 Impact of Adoption January 1, 2019 Assets Operating lease assets $ — $ 8.6 $ 8.6 Finance lease assets — 0.6 0.6 Total lease assets $ — $ 9.2 $ 9.2 Liabilities Current Operating $ — $ 3.5 $ 3.5 Noncurrent Operating — 5.1 5.1 Finance — 0.6 0.6 Total lease liabilities $ — $ 9.2 $ 9.2 See Note 6 to the Consolidated Financial Statements. Recently Issued Accounting Standards In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments." The guidance requires immediate recognition of estimated credit losses that are expected to occur over the remaining life of many financial assets. This new guidance is effective for annual and interim periods in fiscal years beginning after December 15, 2019, but early adoption is permitted for annual and interim periods in fiscal years beginning after December 15, 2018. Adoption of the standard will not materially impact our financial condition, results of operations or cash flows. In August 2018, the FASB issued ASU 2018-13, "Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement." The guidance eliminates, adds and modifies certain disclosure requirements. This new guidance is effective for fiscal years beginning after December 15, 2019 for public companies. Early adoption is permitted for either the entire standard or provisions that eliminate or modify requirements. Adoption of the standard will not impact our financial condition, results of operations or cash flows. In August 2018, the FASB issued ASU 2018-14, "Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans." The guidance changes the disclosure requirements by eliminating certain disclosures that are no longer considered cost beneficial and added new ones that are considered pertinent. The guidance is effective for fiscal years ending after December 15, 2020 for public companies. Early adoption is permitted. Adoption of the standard will not impact our financial condition, results of operations or cash flows. In August 2018, the FASB issued ASU 2018-15, "Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract." The guidance aligns the requirements for capitalizing implementation costs in a cloud computing arrangement service contract with the requirements for capitalizing implementation costs incurred for an internal use software license. Capitalized implementation costs should be amortized over the term of the service agreement on a straight-line basis and should be assessed for impairment in a manner similar to long-lived assets. This new guidance is effective for fiscal years beginning after December 15, 2019 for public companies. Early adoption is permitted. Adoption of the standard will not materially impact our financial condition, results of operations or cash flows. In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740)." The guidance simplifies accounting for income taxes by removing certain exceptions. This new guidance is effective for fiscal years beginning after December 15, 2020 for public companies. Early adoption is permitted. We are continuing to evaluate the impact the adoption of this standard will have on our financial condition, results of operations or cash flows.
Subsequent Events	Subsequent Events We have evaluated subsequent events for potential recognition and disclosure through the date the Consolidated Financial Statements included in the Form 10-K were issued.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Impact of Adoption on Results of Operations	On January 1, 2018, we adopted Accounting Standards Codification ("ASC") 606, " Revenue from Contracts with Customers," and all the related amendments. The impact of the standard is limited to our accounting for warranties and returns. We adopted the standard using the modified retrospective transition method and we recorded a cumulative catch up adjustment to increase accumulated deficit in the amount of $4.1 million , increase prepaid expenses and other current assets by $0.4 million and decrease accounts receivable, net by $4.5 million . The adoption of the standard did not have a material impact on our results of operations or cash flows, but did result in new disclosures. On January 1, 2019, we adopted ASU 2016-02, " Leases ." The guidance, and subsequent amendments issued, requires a lessee to recognize the assets and liabilities that arise from a lease agreement. Specifically, this new guidance requires lessees to recognize a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term, with limited exceptions. Adoption of the new standard resulted in the recording of lease assets and lease liabilities of $9.2 million as of January 1, 2019. December 31, 2018 Impact of Adoption January 1, 2019 Assets Operating lease assets $ — $ 8.6 $ 8.6 Finance lease assets — 0.6 0.6 Total lease assets $ — $ 9.2 $ 9.2 Liabilities Current Operating $ — $ 3.5 $ 3.5 Noncurrent Operating — 5.1 5.1 Finance — 0.6 0.6 Total lease liabilities $ — $ 9.2 $ 9.2

Nature of Operations (Tables)

Nature of Operations (Tables)	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Schedule of Revenues by Geographic Areas	The sales in the table below are allocated to geographic areas based upon the location of the customer. Year Ended December 31, 2019 2018 2017 Net trade sales United States $ 474.4 $ 563.4 $ 549.9 China 68.4 68.7 59.3 Canada 37.9 49.2 48.6 Other 45.6 46.9 46.3 Total $ 626.3 $ 728.2 $ 704.1
Schedule of Property, Plant and Equipment by Geographic Area	The long-lived assets in the table below include property, plant and equipment, net. Long-lived assets by geographic area are reported by location of the operations to which the asset is attributed. December 31, 2019 December 31, 2018 United States $ 192.3 $ 205.9 China 72.7 78.0 Other 12.2 12.2 Total $ 277.2 $ 296.1

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Summary of Valuation Assumptions	The following table summarizes the assumptions used to measure the fair value of the annual grant of performance awards that are also indexed to the achievement of specified levels of absolute total shareholder return. 2017 Weighted-average grant-date fair value $ 15.41 Assumptions Risk-free rate of return 1.6 % Expected volatility 31.4 % Expected term (in years) 3.0 Expected dividend yield —
summary of Valuation Assumptions for PBRSUs	The following table summarized the Monte-Carlo inputs and grant-date fair value price used for the PBRSUs. 2019 Grant-date stock price (AFI closing stock price on September 11, 2019) $ 7.43 Assumptions Risk-free rate of return 1.59 % Expected volatility 41.45 % Expected dividend yield —
Summary of Non-Employee RSU Activity	The fair value of non-employee director RSUs was measured using our stock price on the date of grant. The following table summarizes activity related to the non-employee director RSUs. 2019 2018 Vested and not yet delivered as of December 31 203,261 174,442 Granted 57,012 67,288 Outstanding as of December 31 260,273 241,730
Summary of Stock Option Exercises	The following table summarizes information about AFI's modified stock options: Number of Shares (in thousands) Weighted-Average Exercise Price (per share) Weighted-Average Remaining Contractual Term (years) Aggregate Intrinsic Value (in millions) Outstanding as of December 31, 2018 453.5 $ 12.89 3.6 $ 0.2 Exercised (5.7 ) 13.98 Cancelled (5.7 ) 14.55 Outstanding as of December 31, 2019 442.1 12.85 2.7 — Options exercisable 442.1 12.85 2.7 — The following table presents information related to stock option exercises: Year Ended December 31, 2019 2018 Total intrinsic value of stock options exercised $ — $ 0.3 Cash proceeds received from stock options exercised 0.1 0.8
Summary of Performance Share Activity	The table below summarizes activity related to the PSAs, PSUs, PBRSUs, and RSUs. The non-employee director activity is not reflected in the RSU activity below. PSAs, PSUs and PBRSUs RSUs Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value (per share) Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value (per share) Non-vested as of December 31, 2018 1,102.5 $ 13.88 324.6 $ 16.13 Granted 572.3 7.75 622.8 7.39 Vested (108.8 ) 19.90 (116.9 ) 15.82 Cancelled (437.5 ) 12.73 — — Forfeited (260.2 ) 13.76 (159.7 ) 15.18 Non-vested as of December 31, 2019 868.3 10.53 670.8 8.28
Schedule of Restricted Stock Unit Award Activity	The table below summarizes activity related to the PSAs, PSUs, PBRSUs, and RSUs. The non-employee director activity is not reflected in the RSU activity below. PSAs, PSUs and PBRSUs RSUs Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value (per share) Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value (per share) Non-vested as of December 31, 2018 1,102.5 $ 13.88 324.6 $ 16.13 Granted 572.3 7.75 622.8 7.39 Vested (108.8 ) 19.90 (116.9 ) 15.82 Cancelled (437.5 ) 12.73 — — Forfeited (260.2 ) 13.76 (159.7 ) 15.18 Non-vested as of December 31, 2019 868.3 10.53 670.8 8.28
Summary of Stock-based Compensation and Related Tax Effects	Total stock-based compensation expense included in the Consolidated Statements of Operations and the related tax effects are presented in the table below: Year Ended December 31, 2019 2018 2017 Stock-based compensation expense $ 1.2 $ 4.7 $ 1.5 Income tax benefit — 1.1 0.8

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Components of Lease Expense	The following table summarizes components of lease expense: Year Ended December 31, 2019 Finance lease cost Amortization of right-of-use asset $ 0.3 Operating lease cost 4.1 Short-term lease cost 1.4 Sublease income (1.4 ) Total lease cost $ 4.4
Supplemental Balance Sheet Information Related to Leases	The following table summarizes supplemental balance sheet information related to leases: Balance Sheet Classification December 31, 2019 Assets Operating lease assets Operating lease assets $ 6.0 Finance lease assets Property, plant and equipment, less accumulated depreciation 0.6 Total lease assets $ 6.6 Liabilities Current Operating Accounts payable and accrued expenses $ 3.3 Finance Current installments of long-term debt 0.2 Noncurrent Operating Noncurrent operating lease liabilities 2.7 Finance Long-term debt 0.3 Total lease liabilities $ 6.5
Supplemental Cash Flow Information Related to Leases	The following table summarizes supplemental cash flow information related to leases: Year Ended December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 4.1 Financing cash flows from finance leases $ 0.3
Summarized Weighted Average Remaining Lease Term and Weighted Average Discount Rate	The following table summarized weighted average remaining lease term and weighted average discount rate: December 31, 2019 Weighted Average Remaining Lease Term (Years) Discount Rate Operating leases 3.5 6.0 % Finance leases 3.2 5.4 %
Schedule of Future Minimum Rental Payments for Operating Leases	The following table provides future minimum payments at December 31, 2019 , by year and in the aggregate, for leases having non-cancelable lease terms in excess of one year: Operating Leases Finance Leases 2020 $ 3.6 $ 0.3 2021 1.3 0.2 2022 0.3 0.1 2023 0.2 — 2024 0.2 — Thereafter 1.1 — Total $ 6.7 $ 0.6	The following table provides reconciliation of future minimum lease payments and lease liability: December 31, 2019 Operating Leases Finance Leases Future minimum lease payments $ 6.7 $ 0.6 Less: Unamortized interest 0.7 0.1 Total lease liability $ 6.0 $ 0.5
Schedule of Future Minimum Rental Payments for Finance Leases	The following table provides future minimum payments at December 31, 2019 , by year and in the aggregate, for leases having non-cancelable lease terms in excess of one year: Operating Leases Finance Leases 2020 $ 3.6 $ 0.3 2021 1.3 0.2 2022 0.3 0.1 2023 0.2 — 2024 0.2 — Thereafter 1.1 — Total $ 6.7 $ 0.6	The following table provides reconciliation of future minimum lease payments and lease liability: December 31, 2019 Operating Leases Finance Leases Future minimum lease payments $ 6.7 $ 0.6 Less: Unamortized interest 0.7 0.1 Total lease liability $ 6.0 $ 0.5
Schedule of Future Minimum Rental Payments for Operating Leases	The following table provides future minimum payments having non-cancelable lease terms in effect at December 31, 2018 under the previous lease standard, ASC 840: Total Minimum Lease Payments Scheduled minimum lease payments 2019 $ 10.0 2020 7.1 2021 2.0 2022 0.3 2023 0.2 Thereafter 0.8 Total $ 20.4

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	The following table presents loss from continuing operations before income taxes for U.S. and international operations based on the location of the entity to which such earnings are attributable: Year Ended December 31, 2019 2018 2017 Domestic $ (65.6 ) $ (28.1 ) $ (18.0 ) Foreign (1.7 ) 3.0 (1.1 ) Total $ (67.3 ) $ (25.1 ) $ (19.1 )
Schedule of Components of Income Tax Expense (Benefit)	The following table presents the components of the income tax benefit: Year Ended December 31, 2019 2018 2017 Current Federal $ 0.3 $ 0.3 $ (4.7 ) Foreign 0.4 0.6 (0.4 ) State and local 0.1 0.2 — Subtotal 0.8 1.1 (5.1 ) Deferred Federal 0.1 (4.6 ) (0.3 ) Foreign 0.6 (2.5 ) 0.1 State and local 0.1 — 3.3 Subtotal 0.8 (7.1 ) 3.1 Total $ 1.6 $ (6.0 ) $ (2.0 )
Schedule of Effective Income Tax Rate Reconciliation	The following table presents the differences between our income tax benefit at the U.S. federal statutory income tax rate and our effective income tax rate: Year Ended December 31, 2019 2018 2017 Continuing operations tax at statutory rate $ (14.1 ) $ (5.3 ) $ (6.7 ) Increase in valuation allowances on deferred federal income tax assets 14.3 0.2 — Increase in valuation allowances on deferred state income tax assets 2.1 0.7 5.2 State income tax benefit, net of federal benefit (1.8 ) (0.6 ) (0.8 ) Tax on foreign and foreign-source income 1.2 1.1 (1.4 ) Permanent book/tax differences 1.1 1.7 0.6 Research and development credits (0.9 ) (0.6 ) (0.7 ) Increase/(decrease) in valuation allowances on deferred foreign income tax assets 0.1 (3.4 ) 2.0 State law changes, net of federal benefit — — (1.1 ) Impact of Tax Reform Act — 0.1 0.8 Other (0.4 ) 0.1 0.1 Total $ 1.6 $ (6.0 ) $ (2.0 )
Schedule of Deferred Tax Assets and Liabilities	December 31, 2019 December 31, 2018 Deferred income tax assets (liabilities) Postretirement and postemployment benefits $ 17.5 $ 16.7 Net operating losses 25.1 19.3 Accrued expenses 4.2 9.1 Deferred compensation 2.6 5.5 Customer claims reserves 4.2 2.9 Goodwill 2.2 2.2 Pension benefit liabilities 3.5 2.3 Tax credit carryforwards 3.4 2.6 Intangibles 2.8 1.7 Other 2.6 0.8 Total deferred income tax assets 68.1 63.1 Valuation allowances (35.8 ) (29.7 ) Net deferred income tax assets 32.3 33.4 Accumulated depreciation (20.6 ) (20.2 ) Inventories (6.7 ) (8.7 ) Other (2.1 ) (1.0 ) Total deferred income tax liabilities (29.4 ) (29.9 ) Net deferred income tax assets $ 2.9 $ 3.5 Deferred income taxes have been classified in the Consolidated Balance Sheet as: Deferred income tax assets—noncurrent $ 5.3 $ 5.6 Deferred income tax liabilities—noncurrent (2.4 ) (2.1 ) Net deferred income tax assets $ 2.9 $ 3.5
Summary of Valuation Allowance	The following table presents the components of our valuation allowance against deferred income tax assets: Year Ended December 31, 2019 2018 Federal $ 20.3 $ 9.4 State 5.4 2.8 Foreign 10.1 17.5 Total $ 35.8 $ 29.7
Summary of Operating Loss Carryforwards	The following is a summary of our net operating loss (“NOL”) carryforwards: Year Ended December 31, 2019 2018 State $ 56.7 $ 17.6 Foreign 42.0 65.3 Federal 54.7 14.0
Schedule of Unrecognized Tax Benefits	The following table presents a reconciliation of the total amounts of UTBs, excluding interest and penalties: 2019 2018 2017 Unrecognized tax benefits as of January 1 $ 1.6 $ 4.8 $ 5.0 Gross change for current year positions — 0.2 0.4 (Decreases) for prior period positions (0.9 ) (3.4 ) (0.6 ) Unrecognized tax benefits balance as of December 31 $ 0.7 $ 1.6 $ 4.8
Schedule of Other Income Tax Amounts	The following table details amounts related to certain other taxes: Year Ended December 31, 2019 2018 2017 Payroll taxes $ 10.0 $ 11.7 $ 10.9 Property and franchise taxes 3.2 2.5 2.5

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Summary of Discontinued Operations	The following is a summary of the results related to the net gain (loss) on disposal of wood business which is included in discontinued operations: 2019 2018 Gain (loss) on disposal of discontinued operations before income tax $ 10.4 $ (153.8 ) Income tax expense — — Net gain (loss) on disposal of discontinued operations $ 10.4 $ (153.8 ) The following is a summary of the operating results of the wood business, which are included in discontinued operations. These results exclude overhead allocations. 2018 2017 Net Sales $ 387.0 $ 429.6 Cost of goods sold 330.7 407.5 Gross profit 56.3 22.1 Selling, general and administrative expenses 36.6 39.4 Intangible asset impairment — 12.5 Operating earnings (loss) 19.7 (29.8 ) Interest expense — 0.1 Other expense, net — 1.0 Earnings (loss) before income tax 19.7 (30.9 ) Income tax expense (benefit) 9.8 (6.2 ) Net earnings (loss) from discontinued operations $ 9.9 $ (24.7 ) 2018 2017 Depreciation and Amortization $ 10.3 $ 40.0 Capital Expenditures (8.0 ) (12.3 )

Earnings Per Share Of Common _2

Earnings Per Share Of Common Stock (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The table below shows a reconciliation of the numerator and denominator for basic and diluted earnings per share calculations for the periods indicated. Year Ended December 31, 2019 2018 2017 Numerator (Loss) from continuing operations $ (68.9 ) $ (19.1 ) $ (17.1 ) Earnings (loss) from discontinued operations, net of tax 10.4 (143.9 ) (24.7 ) Net (loss) $ (58.5 ) $ (163.0 ) $ (41.8 ) Denominator Weighted average number of common shares outstanding 23,597,877 25,780,214 26,977,475 Weighted average number of vested shares not yet issued 518,460 188,195 136,504 Weighted average number of common shares outstanding - Basic 24,116,337 25,968,409 27,113,979 Dilutive stock-based compensation awards outstanding — — — Weighted average number of common shares outstanding - Diluted 24,116,337 25,968,409 27,113,979
Schedule of Awards Excluded from Computation of Diluted (Loss) Earnings Per Share	The following awards were excluded from the computation of diluted (loss) earnings per share: Year Ended December 31, 2019 2018 2017 Potentially dilutive common shares excluded from diluted computation as inclusion would be anti-dilutive 611,399 474,910 743,678 Performance awards excluded from diluted computation, as performance conditions not met 343,505 862,256 849,483

Accounts And Notes Receivable (

Accounts And Notes Receivable (Tables)	12 Months Ended
	Dec. 31, 2019
Receivables and Warranty Accruals [Abstract]
Schedule of Accounts and Notes Receivable, Net	The following table presents accounts and notes receivables, net of allowances: December 31, 2019 December 31, 2018 Customer receivables $ 47.1 $ 45.4 Miscellaneous receivables 7.2 6.2 Less: allowance for product warranties, discounts and losses (18.2 ) (12.6 ) Total $ 36.1 $ 39.0
Summary of Activity For the allowance for Product Claims	The following table summarizes the activity for the allowance for product claims: Year Ended December 31, 2019 2018 Balance as of January 1 $ (6.4 ) $ (5.6 ) Cumulative effect of adoption of new revenue recognition standard as of January 1 — (1.7 ) Reductions for payments 6.8 7.5 Current year claim accruals (9.4 ) (6.6 ) Balance as of December 31 $ (9.0 ) $ (6.4 )

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2019
Inventory Disclosure [Abstract]
Schedule of Inventory	The following table presents details related to our inventories, net: December 31, 2019 December 31, 2018 Finished goods $ 87.1 $ 110.5 Goods in process 4.5 5.7 Raw materials and supplies 20.0 23.3 Total $ 111.6 $ 139.5 Inventories valued on a LIFO basis $ 84.6 $ 113.3 Inventories valued on FIFO or other basis $ 27.0 $ 26.2

Prepaid Expenses and Other Cu_2

Prepaid Expenses and Other Current Assets (Tables)	12 Months Ended
	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Prepaid Expenses and Other Current Assets	The following table presents details related to our prepaid expenses and other current assets: December 31, 2019 December 31, 2018 Prepaid expenses $ 5.7 $ 6.8 Merchandising materials 3.1 9.4 Other 1.2 1.8 Total $ 10.0 $ 18.0

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	The following table presents details related to our property, plant and equipment, net: December 31, 2019 December 31, 2018 Land $ 28.2 $ 29.6 Buildings 88.3 91.8 Machinery and equipment 444.6 452.8 Computer software 15.3 19.2 Construction in progress 19.2 21.5 Less accumulated depreciation and amortization (318.4 ) (318.8 ) Total $ 277.2 $ 296.1

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Indefinite-Lived Intangible Assets	The following table details amounts related to our intangible assets: December 31, 2019 December 31, 2018 Estimated Useful Life Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Long-lived intangible assets Contractual arrangements 5 years $ 36.4 $ 17.3 $ 36.4 $ 10.7 Intellectual property 2-15 years 5.3 1.7 5.0 1.3 Subtotal 41.7 $ 19.0 41.4 $ 12.0 Indefinite-lived intangible assets Trademarks and brand names Indefinite 2.7 2.6 Total $ 44.4 $ 44.0
Schedule of Finite-Lived Intangible Assets	The following table details amounts related to our intangible assets: December 31, 2019 December 31, 2018 Estimated Useful Life Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Long-lived intangible assets Contractual arrangements 5 years $ 36.4 $ 17.3 $ 36.4 $ 10.7 Intellectual property 2-15 years 5.3 1.7 5.0 1.3 Subtotal 41.7 $ 19.0 41.4 $ 12.0 Indefinite-lived intangible assets Trademarks and brand names Indefinite 2.7 2.6 Total $ 44.4 $ 44.0
Summary of Intangible Asset Amortization Expense	Year Ended December 31, 2019 2018 2017 Amortization expense $ 7.0 $ 7.2 $ 4.2
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	2020 2021 2022 2023 2024 Expected annual amortization expense $ 7.0 $ 7.0 $ 3.7 $ 0.4 $ 0.4

Accounts Payable And Accrued _2

Accounts Payable And Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Payables and Accruals [Abstract]
Schedule of Accounts Payable and Accrued Expenses	The following table details amounts related to our accounts payable and accrued expenses: December 31, 2019 December 31, 2018 Payables, trade and other $ 70.5 $ 99.5 Employment costs 13.8 25.0 Other accrued expenses 16.8 16.9 Current operating lease liabilities 3.3 — Total $ 104.4 $ 141.4

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of Debt	December 31, 2019 December 31, 2018 Revolver $ 42.2 $ 25.0 Current portion of Term Loan A — 3.7 Noncurrent portion of Term Loan A — 70.6 Noncurrent portion of finance lease liabilities 0.3 — Total $ 42.5 $ 99.3

Pension And Other Postretirem_2

Pension And Other Postretirement Benefit Programs (Tables)	12 Months Ended
	Dec. 31, 2019
Retirement Benefits [Abstract]
Changes in Projected Benefit Obligations	The following tables summarize the balance sheet impact of the postretirement benefit plans, as well as the related benefit obligations, assets, funded status and rate assumptions. 2019 2018 Change in benefit obligation: Projected benefit obligations as January 1 $ 62.2 $ 76.4 Service cost 0.2 0.4 Interest cost 2.5 2.6 Plan participants' contributions 2.2 1.6 Plan amendments (2.6 ) — Effect of curtailment — (0.2 ) Actuarial loss/(gain) 10.0 (9.0 ) Benefits paid (9.2 ) (9.6 ) Projected benefit obligation as of December 31 65.3 62.2 Change in plan assets: Fair value of plan assets as January 1 — — Employer contribution 7.0 8.0 Plan participants' contribution 2.2 1.6 Benefits paid (9.2 ) (9.6 ) Fair value of plan assets as of December 31 — — Funded status of the plans $ (65.3 ) $ (62.2 ) The following tables summarize the balance sheet impact of the pension benefit plans, as well as the related benefit obligations, assets, funded status and rate assumptions. The pension benefits disclosures include both the qualified, funded RIP and the Retirement Benefit Equity Plan, which is a nonqualified, unfunded plan designed to provide pension benefits in excess of the limits defined under Sections 415 and 401(a)(17) of the Internal Revenue Code. The disclosures also include our two Canadian pension plans. U.S. Pension Plans Canadian Pension Plans 2019 2018 2019 2018 Change in benefit obligation: Projected benefit obligations as of January 1 $ 346.4 $ 395.8 $ 15.6 $ 17.8 Liabilities transferred to AHF, LLC — (11.5 ) — — Service cost 2.7 3.8 — — Interest cost 15.0 14.6 0.6 0.6 Foreign currency translation adjustment — — 0.6 (1.2 ) Actuarial loss/(gain) 49.2 (33.4 ) 1.3 0.5 Benefits paid (18.7 ) (22.9 ) (1.8 ) (2.1 ) Projected benefit obligations as of December 31 394.6 346.4 16.3 15.6 Change in plan assets: Fair value of plan assets as of January 1 337.1 390.8 13.6 17.1 Assets to be transferred to AHF, LLC — (8.1 ) — — Actual return on plan assets 62.2 (22.8 ) 1.7 (0.4 ) Employer contribution 0.1 0.1 0.1 0.1 Foreign currency translation adjustment — — 0.6 (1.1 ) Benefits paid (18.7 ) (22.9 ) (1.8 ) (2.1 ) Fair value of plan assets as of December 31 380.7 337.1 14.2 13.6 Funded status of the plans $ (13.9 ) $ (9.3 ) $ (2.1 ) $ (2.0 ) Accumulated benefit obligation as of December 31 $ 393.2 $ 345.1 $ 16.3 $ 15.6
Schedule of Assumptions Used	The table below presents the weighted-average assumptions used in computing the benefit obligations and net periodic benefit cost for the U.S. defined-benefit postretirement benefit plans: 2019 2018 Weighted average discount rate used to determine benefit obligations as of December 31 3.20 % 4.30 % Weighted average discount rate used to determine net periodic benefit cost 4.30 % 3.60 % The table below presents the weighted-average assumptions used in computing the benefit obligations and net periodic benefit cost for the defined-benefit pension plans: U.S. Pension Plans Canadian Pension Plans 2019 2018 2019 2018 Weighted average assumptions used to determine benefit obligations as of December 31 Discount rate 3.25 % 4.40 % 3.00 % 3.80 % Rate of compensation increase 3.25 % 3.25 % n/a n/a Weighted average assumptions used to determine net periodic benefit cost for the period: Discount rate 4.40 % 3.75 % 3.80 % 3.30 % Expected return on plan assets 6.30 % 5.85 % 4.90 % 4.90 % Rate of compensation increase 3.25 % 3.25 % n/a n/a
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets	Defined-benefit pension plans with benefit obligations in excess of plan assets were as follows: U.S. Pension Plans Canadian Pension Plans 2019 2018 2019 2018 Projected benefit obligation, December 31 $ 394.6 $ 346.4 $ 15.8 $ 15.2 Accumulated benefit obligation, December 31 393.2 345.1 15.8 15.2 Fair value of plan assets, December 31 380.7 337.1 13.7 13.1
Schedule of Net Periodic Pension Cost	The components of net periodic pension cost for the U.S. defined-benefit pension plans were as follows: Year Ended December 31, 2019 2018 2017 Service cost of benefits earned during the period $ 2.7 $ 3.8 $ 5.4 Interest cost on projected benefit obligation 15.0 14.6 15.4 Expected return on plan assets (21.7 ) (22.2 ) (22.7 ) Amortization of prior service cost — — 0.4 Recognized net actuarial loss 9.7 10.7 10.5 Net periodic pension cost $ 5.7 $ 6.9 $ 9.0 The components of net periodic pension cost (credit) for the Canadian defined-benefit pension plans were as follows: Year Ended December 31, 2019 2018 2017 Interest cost on projected benefit obligation $ 0.6 $ 0.6 $ 0.6 Expected return on plan assets (0.7 ) (0.8 ) (0.9 ) Amortization of net actuarial loss 0.4 0.2 0.2 Net periodic pension cost (credit) $ 0.3 $ — $ (0.1 ) The components of net periodic postretirement (benefit) cost were as follows: Year Ended December 31, 2019 2018 2017 Service cost of benefits earned during the period $ 0.2 $ 0.4 $ 0.4 Interest cost on accumulated postretirement benefit obligations 2.5 2.6 3.2 Amortization of net actuarial (gain) (3.1 ) (2.5 ) (2.4 ) Net periodic postretirement (benefit) cost $ (0.4 ) $ 0.5 $ 1.2
Schedule of Allocation of Plan Assets	The following tables set forth by level within the fair value hierarchy a summary of the U.S. and Canadian defined-benefit pension plan assets, net of payables for administrative expenses, measured at fair value on a recurring basis: Value at December 31, 2019 Level 1 Level 2 Level 3 Total U.S. Plans Fixed income securities $ — $ 207.9 $ — $ 207.9 Equities — 173.2 — 173.2 Other (0.4 ) — — (0.4 ) Net assets measured at fair value $ (0.4 ) $ 381.1 $ — $ 380.7 Value at December 31, 2018 Level 1 Level 2 Level 3 Total U.S. Plans Fixed income securities $ — $ 202.4 $ — $ 202.4 Equities — 143.2 — 143.2 Other (0.4 ) — — (0.4 ) Net assets measured at fair value $ (0.4 ) $ 345.6 $ — 345.2 Assets to be transferred to AHF, LLC (8.1 ) Net assets $ 337.1 Value at December 31, 2019 Level 1 Level 2 Level 3 Total Canadian Plans Fixed income securities $ — $ 7.0 $ — $ 7.0 Equities — 6.9 — 6.9 Other 0.3 — — 0.3 Net assets measured at fair value $ 0.3 $ 13.9 $ — $ 14.2 Value at December 31, 2018 Level 1 Level 2 Level 3 Total Canadian Plans Fixed income securities $ — $ 6.9 $ — $ 6.9 Equities — 6.5 — 6.5 Other 0.2 — — 0.2 Net assets measured at fair value $ 0.2 $ 13.4 $ — $ 13.6 Each asset class used has a defined asset allocation target and allowable range. The tables below show the asset allocation targets and the December 31, 2019 and 2018 positions for each asset class: Target Weight at Position at December 31, December 31, 2019 2019 2018 U.S. Asset Class Fixed income securities 56 % 55 % 59 % Equities 44 % 45 % 41 % Target Weight at Position at December 31, December 31, 2019 2019 2018 Canadian Asset Class Fixed income securities 50 % 50 % 50 % Equities 48 % 48 % 48 % Other 2 % 2 % 2 %
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates	A one-percentage-point change in assumed health care cost trend rates would have the following effects on the defined-benefit postretirement benefit plans for 2020 : One percentage point Increase Decrease (Decrease) increase on total service and interest cost components $ — $ — (Decrease) increase on postretirement benefit obligation (0.9 ) 1.2
Schedule of Assets and (Liabilities) Recognized in Balance Sheet	Amounts recognized in assets and (liabilities) on the Consolidated Balance Sheets at year end consist of: U.S. Pension Benefits Canadian Pension Benefits 2019 2018 2019 2018 Pension benefit liabilities $ (13.9 ) $ (9.3 ) $ (2.1 ) $ (2.0 ) Net amount recognized $ (13.9 ) $ (9.3 ) $ (2.1 ) $ (2.0 ) Postretirement Benefits 2019 2018 Accounts payable and accrued expenses $ (5.6 ) $ (6.5 ) Postretirement benefit liabilities (59.7 ) (55.7 ) Net amount recognized $ (65.3 ) $ (62.2 )
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)	Pre-tax amounts recognized in AOCI at year end for our pension and postretirement benefit plans consist of: U.S. Pension Benefits Canadian Pension Benefits 2019 2018 2019 2018 Net actuarial (loss) $ (123.1 ) $ (124.2 ) $ (4.8 ) $ (4.7 ) Postretirement Benefits 2019 2018 Net actuarial gain $ 30.5 $ 41.0
Schedule of Expected Future Benefit Payments	The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid over the next ten years for our U.S. and Canadian plans: U.S. Pension Benefits Canadian Pension Benefits Postretirement Benefits 2020 $ 19.1 $ 1.4 $ 5.6 2021 19.1 1.3 5.3 2022 20.1 1.2 5.0 2023 21.0 1.2 4.6 2024 21.6 1.1 4.3 2025-2029 114.4 5.3 17.5

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of the Fair Value of Derivative Assets and Liabilities	The following table presents the classification of derivative assets and liabilities within the Consolidated Balance Sheets. The foreign exchange contracts outstanding are presented gross as we have not netted derivative assets with derivative liabilities: December 31, 2019 December 31, 2018 Assets (1) Liabilities (2) Assets (1) Liabilities (2) Derivatives designated as cash flow hedging instruments Foreign exchange contracts $ — $ 0.4 $ 1.1 $ — Derivatives not designated as hedging instruments Foreign exchange contracts — 0.3 — — Total $ — $ 0.7 $ 1.1 $ — _____________ (1) Derivative assets are classified within prepaid expenses and other current assets as well as other non-current assets. (2) Derivative liabilities are classified within accounts payable and accrued expenses as well as other long-term liabilities.
Summary of Derivative Gain (Loss)	The following tables summarize the impact of the effective portion of derivative instruments on the Consolidated Statements of Operations and Comprehensive Income (Loss): (Losses) gains recognized in other comprehensive income ("OCI") (3) Gains (losses) reclassified from AOCI (3) Year Ended December 31, Year Ended December 31, 2019 2018 2017 2019 2018 2017 Cash flow hedges Foreign exchange contracts $ (0.8 ) $ 2.0 $ (1.9 ) $ 0.7 $ (0.3 ) $ (0.4 ) Gains (losses) recognized in income (3) Year Ended December 31, 2019 2018 2017 Non-designated hedges Foreign exchange contracts $ 0.1 $ 1.5 $ (2.0 ) _____________ (3) Gains (losses) were included in net sales and cost of goods sold.

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Summary of Estimated Fair Values of Financial Instruments	The fair value of cash, accounts and notes receivable and accounts payable and accrued expenses approximate their carrying amounts due to the short-term maturities of these assets and liabilities. Fair Value at December 31, 2019 Carrying amount Level 1 Level 2 Level 3 Total Financial assets Foreign exchange contracts $ — $ — $ — $ — $ — Total financial assets $ — $ — $ — $ — $ — Financial liabilities Foreign exchange contracts $ (0.7 ) $ (0.7 ) $ — $ — $ (0.7 ) Total revolver (42.2 ) — (42.2 ) — (42.2 ) Total financial liabilities $ (42.9 ) $ (0.7 ) $ (42.2 ) $ — $ (42.9 ) Fair Value at December 31, 2018 Carrying amount Level 1 Level 2 Level 3 Total Financial assets Foreign exchange contracts $ 1.1 $ 1.1 $ — $ — $ 1.1 Total financial assets $ 1.1 $ 1.1 $ — $ — $ 1.1 Financial liabilities Total revolver $ (99.3 ) $ — $ (99.3 ) $ — $ (99.3 ) Total financial liabilities $ (99.3 ) $ — $ (99.3 ) $ — $ (99.3 )

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the activity, by component, related to the change in AOCI for December 31, 2019 and 2018 : Foreign Currency Translation Adjustments Derivative Adjustments Pension and Postretirement Adjustments Total Accumulated Other Comprehensive Income (Loss) Balance, December 31, 2017 $ 7.7 $ (1.0 ) $ (59.2 ) $ (52.5 ) Cumulative effect of adoption of ASU 2018-02 as of January 1 — 0.1 (12.7 ) (12.6 ) Other comprehensive (loss) income before reclassifications, net of tax impact of $ — , ($0.5), $1.0 and $0.5 (6.0 ) 1.4 1.2 (3.4 ) Amounts reclassified from accumulated other comprehensive income — 0.3 6.6 6.9 Net current period other comprehensive (loss) income (6.0 ) 1.7 7.8 3.5 Balance, December 31, 2018 $ 1.7 $ 0.8 $ (64.1 ) $ (61.6 ) Other comprehensive (loss) before reclassifications, net of tax impact of $ —, $0.1, $ — and $0.1 (2.2 ) (0.7 ) (16.5 ) (19.4 ) Amounts reclassified from accumulated other comprehensive (loss) income — (0.7 ) 7.0 6.3 Net current period other comprehensive (loss) (2.2 ) (1.4 ) (9.5 ) (13.1 ) Balance, December 31, 2019 $ (0.5 ) $ (0.6 ) $ (73.6 ) $ (74.7 ) The amounts and related tax effects allocated to each component of AOCI in 2019 , 2018 and 2017 are presented in the table below. Pre-tax Amount Tax Impact After-tax Amount 2019 Foreign currency translation adjustments $ (2.2 ) $ — $ (2.2 ) Derivative adjustments (1.5 ) 0.1 (1.4 ) Pension and postretirement adjustments (9.5 ) — (9.5 ) Total other comprehensive (loss) $ (13.2 ) $ 0.1 $ (13.1 ) 2018 Foreign currency translation adjustments $ (6.0 ) $ — $ (6.0 ) Derivative adjustments 2.3 (0.6 ) 1.7 Pension and postretirement adjustments 8.5 (0.7 ) 7.8 Total other comprehensive income $ 4.8 $ (1.3 ) $ 3.5 2017 Foreign currency translation adjustments $ 7.2 $ — $ 7.2 Derivative adjustments (2.0 ) 0.5 (1.5 ) Pension and postretirement adjustments 2.2 (0.6 ) 1.6 Total other comprehensive income $ 7.4 $ (0.1 ) $ 7.3
Reclassification out of Accumulated Other Comprehensive Income	The amounts reclassified from AOCI and the affected line item of the Consolidated Statements of Operations are presented in the table below. Year Ended December 31, 2019 2018 2017 Affected Line Item Derivative adjustments Foreign exchange contracts - purchases $ (0.4 ) $ (0.1 ) $ 0.1 Cost of goods sold Foreign exchange contracts - purchases — — (0.1 ) Earnings (loss) from discontinued operations Foreign exchange contracts - sales (0.3 ) 0.4 0.3 Net sales Foreign exchange contracts - sales — 0.1 0.3 Earnings (loss) from discontinued operations Total (income)/expense before tax (0.7 ) 0.4 0.6 Tax impact — (0.1 ) (0.2 ) Income tax expense (benefit) Tax impact — — — Earnings (loss) from discontinued operations Total (income)/expense, net of tax (0.7 ) 0.3 0.4 Pension and postretirement adjustments Prior service cost amortization — — 0.4 Other expense, net Amortization of net actuarial loss 7.0 8.4 8.4 Other expense, net Amortization of net actuarial loss — (0.1 ) — Earnings (loss) from discontinued operations Total expense before tax 7.0 8.3 8.8 Tax impact — (1.8 ) (1.8 ) Income tax expense (benefit) Tax impact — 0.1 — Earnings (loss) from discontinued operations Total expense, net of tax 7.0 6.6 7.0 Total reclassifications for the period $ 6.3 $ 6.9 $ 7.4

Quarterly Financial Informati_2

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	2019 Quarter Ended March 31 June 30 September 30 December 31 Net sales $ 141.7 $ 177.7 $ 165.6 $ 141.3 Gross profit 22.1 36.2 11.8 15.2 (Loss) earnings from continuing operations (16.6 ) 5.3 (29.7 ) (27.9 ) Per share of common stock: Basic $ (0.63 ) $ 0.20 $ (1.36 ) $ (1.27 ) Diluted (0.63 ) 0.20 (1.36 ) (1.27 ) 2018 Quarter Ended March 31 June 30 September 30 December 31 Net sales $ 164.3 $ 201.2 $ 208.9 $ 153.8 Gross profit 29.3 43.7 45.2 25.0 (Loss) earnings from continuing operations (10.4 ) 2.9 3.3 (14.9 ) Per share of common stock: Basic $ (0.40 ) $ 0.11 $ 0.13 $ (0.57 ) Diluted (0.40 ) 0.11 0.13 (0.57 )

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2019
Contractual Rights
Property, Plant and Equipment [Line Items]
Estimated useful lives of finite-lived intangible assets	5 years
Contractual Rights | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of finite-lived intangible assets	5 years
Intellectual Property | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of finite-lived intangible assets	2 years
Intellectual Property | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of finite-lived intangible assets	15 years
Manufacturing equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	3 years
Manufacturing equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	15 years
Computer equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	3 years
Computer equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	5 years
Office furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	5 years
Office furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	7 years
Tooling and engraving equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	3 years
Tooling and engraving equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	7 years
Heavy production equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	10 years
Heavy production equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	15 years
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	15 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	30 years
Computer software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	3 years
Computer software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant, and equipment	7 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Net AWI Investments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Adjustments related to tax attributes assumed upon spin-off	$ 0.7

Summary of Significant Accoun_6

Summary of Significant Accounting Policies Recently Adopted Standards (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated deficit	$ 244.8		$ 186.3
Prepaid expenses and other current assets	10		18
Assets
Operating lease assets	6	$ 8.6
Finance lease assets	0.6	0.6
Total lease assets	6.6	9.2
Current
Operating	3.3	3.5	0
Noncurrent
Operating	2.7	5.1	0
Finance lease, liability	0.3	0.6	$ 0
Lease Liability	$ 6.5	9.2
ASU 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Impact of Adoption
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated deficit				$ 4.1
Prepaid expenses and other current assets				0.4
Accounts receivables, net				$ 4.5
ASU 2016-02
Assets
Operating lease assets		8.6
Finance lease assets		0.6
Total lease assets		9.2
Current
Operating		3.5
Noncurrent
Operating		5.1
Finance lease, liability		0.6
Lease Liability		$ 9.2

Nature of Operations - Sales by

Nature of Operations - Sales by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 141.3	$ 165.6	$ 177.7	$ 141.7	$ 153.8	$ 208.9	$ 201.2	$ 164.3	$ 626.3	$ 728.2	$ 704.1
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									474.4	563.4	549.9
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									68.4	68.7	59.3
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									37.9	49.2	48.6
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									$ 45.6	$ 46.9	$ 46.3

Nature of Operations - Property

Nature of Operations - Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment	$ 277.2	$ 296.1
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment	192.3	205.9
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment	72.7	78
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net property, plant and equipment	$ 12.2	$ 12.2

Nature of Operations - Narrativ

Nature of Operations - Narrative (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue from Major Customer [Line Items]
Net sales	$ 141.3	$ 165.6	$ 177.7	$ 141.7	$ 153.8	$ 208.9	$ 201.2	$ 164.3	$ 626.3	$ 728.2	$ 704.1
Customer A
Revenue from Major Customer [Line Items]
Net sales									$ 124.4

Severance Expense - Narrative (

Severance Expense - Narrative (Details) $ in Millions	Dec. 31, 2018USD ($)employee	Mar. 31, 2019USD ($)employee	Mar. 31, 2018USD ($)employee	Dec. 31, 2019USD ($)
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | employee	45	70	40
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Severance expenses | $	$ 2.4	$ 3.1	$ 4.6	$ 2.9

Severance Expense CEO Severance

Severance Expense CEO Severance (Details) - USD ($) $ in Millions	Dec. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2019
Selling, general and administrative expenses
Severance [Line Items]
Severance expenses	$ 2.4	$ 3.1	$ 4.6	$ 2.9

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 02, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Apr. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance condition stock price hurdle 1 (in usd per share)		$ 10.50
Performance condition stock price hurdle 2 (in usd per share)		12.25
Performance condition stock price hurdle 3 (in usd per share)		14
Performance condition stock price hurdle 4 (in usd per share)		15.75
Performance condition stock price hurdle 5 (in usd per share)		17.50
Valuation fair value, price per share, hurdle 1 (in usd per share)		5.93
Valuation fair value, price per share, hurdle 2 (in usd per share)		5.28
Valuation fair value, price per share, hurdle 3 (in usd per share)		4.70
Valuation fair value, price per share, hurdle 4 (in usd per share)		4.20
Valuation fair value, price per share, hurdle 5 (in usd per share)		$ 3.75
Excess tax benefit		$ 0.1	$ 0.1	$ 0.5
Year One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Year Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		4 years
Performance Share Awards (PSAs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance condition based on earnings before interest, taxes, depreciation and amortization		75.00%
Performance condition based on cumulative free cash flow		25.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares accounted for as liability awards (in shares)		670,800	324,600
Weighted-average grant date fair value of PSUs and RSUs (in dollars per share)		$ 7.39	$ 16.12
Grant date fair value of RSUs			$ 2.1
Restricted Stock Units (RSUs) | Year One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		1 year
Award vesting percentage		33.33%
Restricted Stock Units (RSUs) | Year Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Award vesting percentage		33.33%
Restricted Stock Units (RSUs) | Year Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Award vesting percentage		33.33%
Performance Share Units that may be settled in cash
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares accounted for as liability awards (in shares)		4,174	6,895
Restricted Stock Units that may be settled in cash
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares accounted for as liability awards (in shares)		14,118	6,825
Grant date fair value of RSUs			$ 1.8
PSAs, PSUs and PBRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares accounted for as liability awards (in shares)		868,300	1,102,500
Weighted-average grant date fair value of PSUs and RSUs (in dollars per share)		$ 7.75	$ 13.94
Grant date fair value of RSUs		$ 2.2
Performance Shares, Performance Share Units and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation expense		$ 5.2
Weighted average period		3 years 2 months 12 days
2016 LTIP Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)		1,863,537
2016 Directors' Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)		188,351
2016 Directors' Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		1 year
Number of shares accounted for as liability awards (in shares)		260,273	241,730
Common Stock | 2016 LTIP Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)					5,500,000
Number of additional shares authorized (in shares)	2,100,000
Common Stock | 2016 Directors' Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)					600,000

Stock-Based Compensation - PSA

Stock-Based Compensation - PSA Valuation Assumptions (Details) - 2016 LTIP Plan - Performance Share Awards (PSAs)	12 Months Ended
	Dec. 31, 2017$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date stock price (in dollars per share)	$ 15.41
Risk-free rate of return	1.60%
Expected volatility	31.40%
Expected term (in years)	3 years
Dividend yield	0.00%

Stock-Based Compensation Stock-

Stock-Based Compensation Stock-based compensation PBRSU valuation assumption (details) (Details) - PSAs, PSUs and PBRSUs - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017	Sep. 11, 2019
PBRSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date stock price (AFI closing stock price on September 11, 2019)			$ 7.43
share-based compensation PBRUs valuation assumption [Abstract]
Risk-free rate of return	1.59%
Expected volatility	41.45%
Dividend yield	0.00%
2016 LTIP Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date stock price (AFI closing stock price on September 11, 2019)		$ 15.41
share-based compensation PBRUs valuation assumption [Abstract]
Risk-free rate of return		1.60%
Expected volatility		31.40%
Dividend yield		0.00%

Stock-Based Compensation Stoc_2

Stock-Based Compensation Stock-Based Compensation - Summary of Non-Employee RSU Activity (Details) - Restricted Stock Units (RSUs) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested as of December 31 (in shares)	116,900
Outstanding as of December 31 (in shares)	670,800	324,600
2016 Directors' Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested as of December 31 (in shares)	203,261	174,442
Granted (in shares)	57,012	67,288
Outstanding as of December 31 (in shares)	260,273	241,730

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Modified Stock Options (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Number of Shares (in thousands)
Number of Shares, Outstanding, Beginning of Period (in shares)	453,500
Number of Shares, Exercised (in shares)	(5,700)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	(5,700)
Number of Shares, Outstanding, Ending of Period (in shares)	442,100	453,500
Number of Shares, Exercisable (in shares)	442,100
Weighted Average Exercise Price (per share)
Outstanding, beginning of period (in dollars per share)	$ 12.89
Exercised (in dollars per share)	13.98
Canceled (in dollars per share)	(14.55)
Outstanding, end of period (in dollars per share)	12.85	$ 12.89
Exercisable (in dollars per share)	$ 12.85
Additional Stock Option Activity Disclosures
Weighted Average Remaining Contractual Term (years), Outstanding	2 years 8 months 12 days	3 years 7 months 6 days
Weighted Average Remaining Contractual Term (years), Exercisable	2 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding	$ 0	$ 0.2
Aggregate Intrinsic Value, Exercisable	$ 0

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock Option Exercises (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement [Abstract]
Total intrinsic value of stock options exercised	$ 0	$ 0.3
Cash proceeds received from options exercised	$ 0.1	$ 0.8	$ 1.4

Stock-Based Compensation - Sc_2

Stock-Based Compensation - Schedule of Activity Related to PSAs, PSUs, and RSUs (Details)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Weighted-Average Grant-Date Fair Value (per share)
Cancelled (in dollars per share)	$ 14.55
PSAs, PSUs and PBRSUs
Number of Shares (in thousands)
Outstanding at beginning of period (in shares) | shares	1,102,500
Granted (in shares) | shares	572,300
Vested (in shares) | shares	(108,800)
Cancelled (in shares) | shares	(437,500)
Forfeited (in shares) | shares	(260,200)
Outstanding at end of period (in shares) | shares	868,300
Weighted-Average Grant-Date Fair Value (per share)
Outstanding at beginning of period (in dollars per share)	$ 13.88
Granted (in dollars per share)	7.75
Vested (in dollars per share)	19.90
Cancelled (in dollars per share)	12.73
Forfeited (in dollars per share)	13.76
Outstanding at end of period (in dollars per share)	$ 10.53
RSUs
Number of Shares (in thousands)
Outstanding at beginning of period (in shares) | shares	324,600
Granted (in shares) | shares	622,800
Vested (in shares) | shares	(116,900)
Cancelled (in shares) | shares	0
Forfeited (in shares) | shares	(159,700)
Outstanding at end of period (in shares) | shares	670,800
Weighted-Average Grant-Date Fair Value (per share)
Outstanding at beginning of period (in dollars per share)	$ 16.13
Granted (in dollars per share)	7.39
Vested (in dollars per share)	15.82
Cancelled (in dollars per share)	0
Forfeited (in dollars per share)	15.18
Outstanding at end of period (in dollars per share)	$ 8.28

Stock-Based Compensation - Expe

Stock-Based Compensation - Expense and Related Tax Effects (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement [Abstract]
Stock-based compensation expense	$ 1.2	$ 4.7	$ 1.5
Income tax benefit	$ 0	$ 1.1	$ 0.8

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	Jan. 01, 2019USD ($)	Dec. 31, 2019USD ($)options	Dec. 31, 2018USD ($)
Leases [Abstract]
Future minimum lease payments			$ 20.4
Leases, number of renewal options | options		1
Lessee, Lease, Description [Line Items]
Lease term		13 months
Remaining lease terms		3 years 6 months
Sublease Income		$ 2.5
Non-lease component gain on termination of lease		$ 1.6
Remaining Lease Terms		1 month
Lessee, Finance Lease, Renewal Term		1 year
ASU 2016-02
Lessee, Lease, Description [Line Items]
Operating lease. nonlease component	$ 8.2
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	$ 2.3
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms		9 years
Lease renewal term		10 years
Member Units
Lessee, Lease, Description [Line Items]
Sublease Income		$ 0.9

Leases - Lease Cost (Details)

Leases - Lease Cost (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Finance lease cost
Amortization of right-of-use asset	$ 0.3
Operating lease cost	4.1
Short-term lease cost	1.4
Sublease income	(1.4)
Total lease cost	$ 4.4

Leases - Balance Sheet Classifi

Leases - Balance Sheet Classification (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Lease Assets [Abstract]
Operating lease assets	$ 6	$ 8.6
Finance lease assets	0.6	0.6
Total lease assets	6.6	9.2
Current
Operating lease	3.3	3.5	$ 0
Finance lease	0.2
Lease Liability, Noncurrent [Abstract]
Operating lease	2.7	5.1	0
Finance lease	0.3	0.6	$ 0
Lease Liability	$ 6.5	$ 9.2

Leases - Cash flows from leases

Leases - Cash flows from leases (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 4.1
Financing cash flows from finance leases	$ 0.3

Leases - Leases Weighted Averag

Leases - Leases Weighted Average (Details)	Dec. 31, 2019
Remaining Lease Term (Years)
Operating leases	3 years 6 months
Finance leases	3 years 2 months 12 days
Discount Rate
Operating leases	6.00%
Finance leases	5.40%

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments (Details) $ in Millions	Dec. 31, 2019USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	$ 3.6
2021	1.3
2022	0.3
2023	0.2
2024	0.2
Thereafter	1.1
Total	6.7
Less: Unamortized interest	0.7
Total Operating lease liability	6
Finance Lease, Liability, Payment, Due [Abstract]
2020	0.3
2021	0.2
2022	0.1
2023	0
2024	0
Thereafter	0
Total	0.6
Less: Unamortized interest	0.1
Total Finance lease liability	$ 0.5

Leases - Schedule of Minimum Le

Leases - Schedule of Minimum Lease Payments Under ASC 840 (Details) $ in Millions	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 10
2020	7.1
2021	2
2022	0.3
2023	0.2
Thereafter	0.8
Total	$ 20.4

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019	Dec. 31, 2016
Operating Loss Carryforwards [Line Items]
Percentage of Net Operating Losses Limited upon Tax Reform Enactment	80.00%
Tax Cuts And Jobs Act Of 2017, provisional income tax expense	$ 0.1
Undistributed earnings of foreign subsidiaries	12.7
Future annual required taxable income for state tax purposes	142.7
Unrecognized tax benefits	0.7	$ 1.6	$ 4.8	$ 1.6	$ 5
Unrecognized tax benefit that would impact effective tax rate, net of federal tax benefits	0.1
Decrease resulting from prior period tax positions	0.9	3.4	$ 0.6
Decrease to prior period tax positions related to Tax Cuts and Jobs Act of 2017		$ 3.1
Decrease in Unrecognized Tax Benefits is Reasonably Possible	0.1
State
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	41.2
Foreign
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 41.6

Income Taxes - Schedule of Dome

Income Taxes - Schedule of Domestic and Foreign Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Domestic	$ (65.6)	$ (28.1)	$ (18)
Foreign	(1.7)	3	(1.1)
(Loss) from continuing operations before income taxes	$ (67.3)	$ (25.1)	$ (19.1)

Income Taxes - Schedule of Comp

Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ 0.3	$ 0.3	$ (4.7)
Foreign	0.4	0.6	(0.4)
State and local	0.1	0.2	0
Subtotal	0.8	1.1	(5.1)
Deferred
Federal	0.1	(4.6)	(0.3)
Foreign	0.6	(2.5)	0.1
State and local	0.1	0	3.3
Subtotal	0.8	(7.1)	3.1
Total income tax expense (benefit)	$ 1.6	$ (6)	$ (2)

Income Taxes - Schedule of Effe

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Valuation Allowance [Line Items]
Continuing operations tax at statutory rate		$ (14.1)	$ (5.3)	$ (6.7)
Permanent book/tax differences		1.1	1.7	0.6
Tax on foreign and foreign-source income		1.2	1.1	(1.4)
State income tax expense (benefit), net of federal benefit		(1.8)	(0.6)	(0.8)
Research and development credits		(0.9)	(0.6)	(0.7)
Other		(0.4)	0.1	0.1
Total income tax expense (benefit)		1.6	(6)	(2)
State
Valuation Allowance [Line Items]
(Decrease)/increase in valuation allowances on deferred foreign income tax assets		2.1	0.7	5.2
Law changes	$ 0		0	(1.1)
Federal
Valuation Allowance [Line Items]
(Decrease)/increase in valuation allowances on deferred foreign income tax assets		14.3	0.2	0
Law changes		0	0.1	0.8
Foreign
Valuation Allowance [Line Items]
(Decrease)/increase in valuation allowances on deferred foreign income tax assets		$ 0.1	$ (3.4)	$ 2

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Document Period End Date	Dec. 31, 2019
Deferred income tax assets (liabilities)
Postretirement and postemployment benefits	$ 17.5	$ 16.7
Net operating losses	25.1	19.3
Accrued expenses	4.2	9.1
Deferred compensation	2.6	5.5
Customer claims reserves	4.2	2.9
Goodwill	2.2	2.2
Pension benefit liabilities	3.5	2.3
Tax credit carryforwards	3.4	2.6
Intangibles	2.8	1.7
Other	2.6	0.8
Total deferred income tax assets	68.1	63.1
Valuation allowances	(35.8)	(29.7)
Net deferred income tax assets	32.3	33.4
Accumulated depreciation	(20.6)	(20.2)
Inventories	(6.7)	(8.7)
Other	(2.1)	(1)
Total deferred income tax liabilities	(29.4)	(29.9)
Net deferred income tax assets	2.9	3.5
Deferred income taxes have been classified in the Consolidated Balance Sheet as:
Deferred income tax assets—noncurrent	5.3	5.6
Deferred income tax liabilities—noncurrent	$ (2.4)	$ (2.1)

Income Taxes Income Taxes - Sch

Income Taxes Income Taxes - Schedule of Valuation Allowance (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Valuation Allowance for Impairment of Recognized Servicing Assets [Line Items]
Valuation allowance	$ 35.8	$ 29.7
Federal
Valuation Allowance for Impairment of Recognized Servicing Assets [Line Items]
Valuation allowance	20.3	9.4
State
Valuation Allowance for Impairment of Recognized Servicing Assets [Line Items]
Valuation allowance	5.4	2.8
Foreign
Valuation Allowance for Impairment of Recognized Servicing Assets [Line Items]
Valuation allowance	$ 10.1	$ 17.5

Income Taxes Income Taxes - S_2

Income Taxes Income Taxes - Schedule of Net Operating Loss Carryforwards (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 56.7	$ 17.6
Foreign
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	42	65.3
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 54.7	$ 14

Income Taxes - Schedule of Unre

Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 1.6	$ 4.8	$ 5
Gross change for current year positions	0	0.2	0.4
Decreases for prior period positions	(0.9)	(3.4)	(0.6)
Unrecognized tax benefits, ending balance	$ 0.7	$ 1.6	$ 4.8

Income Taxes - Schedule of Othe

Income Taxes - Schedule of Other Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Payroll taxes	$ 10	$ 11.7	$ 10.9
Property and franchise taxes	$ 3.2	$ 2.5	$ 2.5

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of discontinued operations			$ 90.2	$ 0
Capital Expenditure, Discontinued Operations		$ 1.9
Disposal Group, Including Discontinued Operation, Other Income		11.9
Other Income		3
Termination fee to cancel sublease before end of term		2.5
Gain (loss) on disposal of discontinued operations, net of tax		10.4	$ (153.8)	$ 0
Sublease Income		1.4
Discontinued operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal of discontinued operations, net of tax	$ 11.4
Member Units
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sublease Income		$ 1.5

Discontinued Operations - Sched

Discontinued Operations - Schedule of Results of Discontinued Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating earnings (loss)	$ (61.1)	$ (17.4)	$ (12.7)
Other expense, net	1.8	2.9	3.7
Net earnings (loss) from discontinued operations	0	9.9	(24.7)
Capital Expenditures	(1.9)
Gain (loss) on disposal of discontinued operations, net of tax	10.4	(153.8)	0
DLW Subsidiary | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales		387	429.6
Cost of goods sold		330.7	407.5
Gross profit		56.3	22.1
Selling, general and administrative expenses		36.6	39.4
Intangible asset impairment		0	12.5
Operating earnings (loss)		19.7	(29.8)
Interest expense		0	0.1
Other expense, net		0	1
Earnings (loss) before income tax		19.7	(30.9)
Income tax expense (benefit)		9.8	(6.2)
Net earnings (loss) from discontinued operations		9.9	(24.7)
Depreciation and Amortization		10.3	40
Capital Expenditures		(8)	$ (12.3)
Gain (loss) on disposal of discontinued operations before income tax	10.4	(153.8)
Income tax (benefit)	$ 0	$ 0

Discontinued Operations Discont

Discontinued Operations Discontinued Operations Schedule of Gain/Loss on Disposal (Details) - DLW Subsidiary - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal of discontinued operations before income tax	$ 10.4	$ (153.8)
Income tax (benefit)	0	0
Net gain (loss) on disposal of discontinued operations	$ 10.4	$ (153.8)

Earnings Per Share Of Common _3

Earnings Per Share Of Common Stock (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator
Income from continuing operations	$ (27.9)	$ (29.7)	$ 5.3	$ (16.6)	$ (14.9)	$ 3.3	$ 2.9	$ (10.4)	$ (68.9)	$ (19.1)	$ (17.1)
Earnings (loss) from discontinued operations, net of tax									10.4	(143.9)	(24.7)
Net (loss)									$ (58.5)	$ (163)	$ (41.8)
Denominator
Weighted average number of common shares outstanding (in shares)									23,597,877	25,780,214	26,977,475
Weighted average number of vested shares not yet issued (in shares)									518,460	188,195	136,504
Weighted average number of common shares outstanding - Basic (in shares)									24,116,337	25,968,409	27,113,979
Dilutive stock-based compensation awards outstanding (in shares)									0	0	0
Weighted average number of common shares outstanding - Diluted (in shares)									24,116,337	25,968,409	27,113,979
Stock Compensation Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from computation of earnings per share (in shares)									611,399	474,910	743,678
Performance Share Awards (PSAs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from computation of earnings per share (in shares)									343,505	862,256	849,483

Accounts And Notes Receivable -

Accounts And Notes Receivable - Receivables Net of Allowances (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Receivables and Warranty Accruals [Abstract]
Customer receivables	$ 47.1	$ 45.4
Miscellaneous receivables	7.2	6.2
Less: allowance for product warranties, discounts and losses	(18.2)	(12.6)
Total	$ 36.1	$ 39

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Finished goods	$ 87.1	$ 110.5
Goods in process	4.5	5.7
Raw materials and supplies	20	23.3
Total	111.6	139.5
Inventories valued on FIFO or other basis	84.6	113.3
Inventories valued on a LIFO basis	$ 27	$ 26.2

Accounts And Notes Receivable_2

Accounts And Notes Receivable - Product Warranties (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Beginning Balance	$ (6.4)	$ (5.6)
Cumulative effect of adoption of new revenue recognition standard as of January 1	0	(1.7)
Reductions for payments	6.8	7.5
Current year claim accruals	(9.4)	(6.6)
Ending Balance	$ (9)	$ (6.4)

Inventories - Narrative (Detail

Inventories - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Change in accounting principle effect on inventory	$ 4.7	$ 3

Inventories Inventory Write Dow

Inventories Inventory Write Down (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Inventory [Line Items]
Inventory Write-down	$ 13.6	$ 0	$ 0

Prepaid Expenses and Other Cu_3

Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 5.7	$ 6.8
Merchandising materials	3.1	9.4
Other	1.2	1.8
Total	10	$ 18
Write-off advertising materials	$ 5.9

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Less accumulated depreciation and amortization	$ (318.4)	$ (318.8)
Total	277.2	296.1
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	28.2	29.6
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	88.3	91.8
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	444.6	452.8
Computer software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	15.3	19.2
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 19.2	$ 21.5

Property, Plant and Equipment P

Property, Plant and Equipment Property, Plant Equipment Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Depreciation	$ 43.7	$ 37.5

Intangible Assets - Narrative (

Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Indefinite-lived Intangible Assets [Line Items]
Payments to acquire businesses		$ 0	$ 0	$ 36.1
Intangible assets assigned		41.7	41.4
Vinyl Composition Tile Assets Of Mannington Mills, Inc. [Member]
Indefinite-lived Intangible Assets [Line Items]
Payments to acquire businesses	$ 36.1
Purchase price allocated to indefinite-lived Intangible assets	33.6
Contingent consideration, liability		9
Contingent consideration, range of outcomes in each measurement period, low		0
Contingent consideration, range of outcomes In each measurement Period, high		4.5
Contractual Rights
Indefinite-lived Intangible Assets [Line Items]
Intangible assets assigned		$ 36.4	36.4
Estimated useful lives of finite-lived intangible assets		5 years
Contractual Rights | Vinyl Composition Tile Assets Of Mannington Mills, Inc. [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets assigned	$ 33.3
Estimated useful lives of finite-lived intangible assets	5 years
Intellectual Property
Indefinite-lived Intangible Assets [Line Items]
Intangible assets assigned		$ 5.3	$ 5
Intellectual Property | Vinyl Composition Tile Assets Of Mannington Mills, Inc. [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets assigned	$ 0.3
Estimated useful lives of finite-lived intangible assets	2 years

Intangible Assets - Schedule of

Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 41.7	$ 41.4
Accumulated Amortization	19	12
Indefinite-lived Intangible Assets [Line Items]
Total	$ 44.4	44
Contractual Rights
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Gross Carrying Amount	$ 36.4	36.4
Accumulated Amortization	17.3	10.7
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5.3	5
Accumulated Amortization	$ 1.7	1.3
Minimum | Contractual Rights
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Minimum | Intellectual property
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	2 years
Maximum | Intellectual property
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	15 years
Trademarks and brand names
Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2.7	$ 2.6

Intangible Assets - Schedule _2

Intangible Assets - Schedule of Amortization Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 7	$ 7.2	$ 4.2

Intangible Assets - Schedule _3

Intangible Assets - Schedule of Expected Future Annual Amortization Expense (Details) $ in Millions	Dec. 31, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2019	$ 7
2020	7
2021	3.7
2022	0.4
2023	$ 0.4

Accounts Payable And Accrued _3

Accounts Payable And Accrued Expenses (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Payables, trade and other	$ 70.5		$ 99.5
Employment costs	13.8		25
Other accrued expenses	16.8		16.9
Operating lease	3.3	$ 3.5	0
Total	$ 104.4		$ 141.4

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2019	Nov. 09, 2019	Jan. 01, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Current portion of Term Loan A	$ 0.2			$ 3.7
Noncurrent portion of Term Loan A	42.5			70.6
Noncurrent portion of finance lease liabilities	0.3		$ 0.6	0
Total	42.5			99.3
Term Loan
Debt Instrument [Line Items]
Current portion of Term Loan A	0			3.7
Noncurrent portion of Term Loan A	0			70.6
Credit Agreement | Revolver
Debt Instrument [Line Items]
Total	42.2			25
Credit Agreement | Revolver | Term Loan
Debt Instrument [Line Items]
Total	$ 42.2	$ 25		$ 75

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2019	Nov. 09, 2019
Debt Instrument [Line Items]
Long term debt	$ 99.3	$ 42.5
Assets of wholly owned domestic subsidiaries individually or together (more than)		1
Revolving Credit Facility
Debt Instrument [Line Items]
Letters of credit sublimit	$ 25	20
Swing line loans		15
Letters of credit outstanding		3.9
Unused capacity commitment fee (percent)	0.20%
Fees for outstanding letters of credit, percentage	2.375%
Line of Credit | Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 150	100	$ 100
Long term debt	25	42.2
Credit facility, increase that can be requested	25
Credit Agreement | Term Loan | Revolving Credit Facility
Debt Instrument [Line Items]
Long term debt	75	$ 42.2	25
Credit Agreement | Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Long term debt			$ 75
Credit Agreement | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Long term debt	$ 75
ABL Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate		3.94%

Pension And Other Postretirem_3

Pension And Other Postretirement Benefit Programs - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan costs	$ 5.5	$ 6.2
Minimum
Defined Benefit Plan Disclosure [Line Items]
Asset class performance period	20 years
Retiree Health and Life Insurance Plans
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next fiscal year, pre-65 retiree	7.10%
Health care cost rate assumed	4.50%
Expected amortization of unrecognized net actuarial losses in next fiscal year	$ 2.4
Retiree Health and Life Insurance Plans | Minimum
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next fiscal year, post-65 retiree	6.50%
Retiree Health and Life Insurance Plans | Maximum
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next fiscal year, post-65 retiree	8.20%
U.S. Pension Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets (in percentage)	6.30%	5.85%
Expected unrecognized prior service cost and net actuarial losses to be recognized in next fiscal year	$ 10.1
Expected employer contributions, next fiscal year	0.1
U.S. Pension Plan | Retiree Health and Life Insurance Plans
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions, next fiscal year	$ 5.6
Canadian Pension Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets (in percentage)	4.90%	4.90%
Expected unrecognized prior service cost and net actuarial losses to be recognized in next fiscal year	$ 0.4
Expected employer contributions, next fiscal year	$ 0.1

Pension And Other Postretirem_4

Pension And Other Postretirement Benefit Programs - Schedule of Change in Benefit Obligation and Change in Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Retiree Health and Life Insurance Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	$ (2.6)	$ 0
Change in benefit obligation:
Benefit obligations as of beginning of period	62.2	76.4
Service cost	0.2	0.4	$ 0.4
Interest cost	2.5	2.6	3.2
Actuarial (gain) loss	10	(9)
Benefits paid	(9.2)	(9.6)
Benefit obligation as of end of period	65.3	62.2	76.4
Change in plan assets:
Fair value of plan assets as of beginning of period	0	0
Employer contribution	7	8
Plan participants' contribution	2.2	1.6
Benefits paid	(9.2)	(9.6)
Fair value of plan assets as of end of period	0	0	0
Funded status of the plans	(65.3)	(62.2)
U.S. Pension Plan
Change in plan assets:
Employer contribution	0.1	0.1
U.S. Pension Plan | Pension Plan
Change in benefit obligation:
Benefit obligations as of beginning of period	346.4	395.8
Liabilities transferred to AHF, LLC	0	(11.5)
Service cost	2.7	3.8	5.4
Interest cost	15	14.6	15.4
Foreign currency translation adjustment	0	0
Actuarial (gain) loss	49.2	(33.4)
Benefits paid	(18.7)	(22.9)
Benefit obligation as of end of period	394.6	346.4	395.8
Change in plan assets:
Fair value of plan assets as of beginning of period	337.1	390.8
Assets received from separation	0	(8.1)
Actual return on plan assets	62.2	(22.8)
Foreign currency translation adjustment	0	0
Benefits paid	(18.7)	(22.9)
Fair value of plan assets as of end of period	380.7	337.1	390.8
Funded status of the plans	(13.9)	(9.3)
Accumulated benefit obligation	393.2	345.1
Canadian Pension Plan
Change in plan assets:
Employer contribution	0.1	0.1
Canadian Pension Plan | Pension Plan
Change in benefit obligation:
Benefit obligations as of beginning of period	15.6	17.8
Liabilities transferred to AHF, LLC	0	0
Service cost	0	0
Interest cost	0.6	0.6	0.6
Foreign currency translation adjustment	0.6	(1.2)
Actuarial (gain) loss	1.3	0.5
Benefits paid	(1.8)	(2.1)
Benefit obligation as of end of period	16.3	15.6	17.8
Change in plan assets:
Fair value of plan assets as of beginning of period	13.6	17.1
Assets received from separation	0	0
Actual return on plan assets	1.7	(0.4)
Foreign currency translation adjustment	0.6	(1.1)
Benefits paid	(1.8)	(2.1)
Fair value of plan assets as of end of period	14.2	13.6	$ 17.1
Funded status of the plans	(2.1)	(2)
Accumulated benefit obligation	$ 16.3	$ 15.6

Pension And Other Postretirem_5

Pension And Other Postretirement Benefit Programs - Weighted Average Assumptions (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Retiree Health and Life Insurance Plans
Weighted average assumptions used to determine benefit obligations as of December 31,
Discount rate (in percentage)	3.20%	4.30%
Weighted average assumptions used to determine net periodic benefit cost for the period:
Discount rate (in percentage)	4.30%	3.60%
U.S. Plans | Pension Plan
Weighted average assumptions used to determine benefit obligations as of December 31,
Discount rate (in percentage)	3.25%	4.40%
Rate of compensation increase	3.25%	3.25%
Weighted average assumptions used to determine net periodic benefit cost for the period:
Discount rate (in percentage)	4.40%	3.75%
Expected return on plan assets	6.30%	5.85%
Rate of compensation increase	3.25%	3.25%
Canadian Pension Plan | Pension Plan
Weighted average assumptions used to determine benefit obligations as of December 31,
Discount rate (in percentage)	3.00%	3.80%
Weighted average assumptions used to determine net periodic benefit cost for the period:
Discount rate (in percentage)	3.80%	3.30%
Expected return on plan assets	4.90%	4.90%

Pension And Other Postretirem_6

Pension And Other Postretirement Benefit Programs - Benefit Obligations in Excess of Assets (Details) - Pension Plan - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
U.S. Pension Plan
Defined-benefit pension plans with benefit obligations in excess of assets
Projected benefit obligation, December 31	$ 394.6	$ 346.4
Accumulated benefit obligation, December 31	393.2	345.1
Fair value of plan assets, December 31	380.7	337.1
Canadian Pension Plan
Defined-benefit pension plans with benefit obligations in excess of assets
Projected benefit obligation, December 31	15.8	15.2
Accumulated benefit obligation, December 31	15.8	15.2
Fair value of plan assets, December 31	$ 13.7	$ 13.1

Pension And Other Postretirem_7

Pension And Other Postretirement Benefit Programs - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Retiree Health and Life Insurance Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.2	$ 0.4	$ 0.4
Interest cost	2.5	2.6	3.2
Recognized net actuarial loss	3.1	2.5	2.4
Net periodic pension cost	(0.4)	0.5	1.2
U.S. Pension Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	2.7	3.8	5.4
Interest cost	15	14.6	15.4
Expected return on plan assets	(21.7)	(22.2)	(22.7)
Amortization of prior service cost (credit)	0	0	0.4
Recognized net actuarial loss	(9.7)	(10.7)	(10.5)
Net periodic pension cost	5.7	6.9	9
Canadian Pension Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	0.6	0.6	0.6
Expected return on plan assets	(0.7)	(0.8)	(0.9)
Recognized net actuarial loss	(0.4)	(0.2)	(0.2)
Net periodic pension cost	$ 0.3	$ 0	$ (0.1)

Pension And Other Postretirem_8

Pension And Other Postretirement Benefit Programs - Asset Allocation (Details) - Pension Plan	Dec. 31, 2019	Dec. 31, 2018
United States | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target Weight End of Period	56.00%
Position at End of Period	55.00%	59.00%
United States | Equities
Defined Benefit Plan Disclosure [Line Items]
Target Weight End of Period	44.00%
Position at End of Period	45.00%	41.00%
Canadian Pension Plan | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target Weight End of Period	50.00%
Position at End of Period	50.00%	50.00%
Canadian Pension Plan | Equities
Defined Benefit Plan Disclosure [Line Items]
Target Weight End of Period	48.00%
Position at End of Period	48.00%	48.00%
Canadian Pension Plan | Other
Defined Benefit Plan Disclosure [Line Items]
Target Weight End of Period	2.00%
Position at End of Period	2.00%	2.00%

Pension And Other Postretirem_9

Pension And Other Postretirement Benefit Programs - Fair Value Measurement (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
United States
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 380.7	$ 337.1	$ 390.8
Assets received from separation	0	(8.1)
United States | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	(0.4)
United States | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	381.1
United States | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0
United States | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	207.9	202.4
United States | Fixed income securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
United States | Fixed income securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	207.9	202.4
United States | Fixed income securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
United States | Equities
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	173.2	143.2
United States | Equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
United States | Equities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	173.2	143.2
United States | Equities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
United States | Other
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	(0.4)	(0.4)
United States | Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	(0.4)	(0.4)
United States | Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
United States | Other | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
United States | Plan Assets Before Transfer to AHF, LLC
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		345.2
United States | Plan Assets Before Transfer to AHF, LLC | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		(0.4)
United States | Plan Assets Before Transfer to AHF, LLC | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		345.6
United States | Plan Assets Before Transfer to AHF, LLC | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		0
Canadian Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	14.2	13.6	$ 17.1
Assets received from separation	0	0
Canadian Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0.3	0.2
Canadian Pension Plan | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	13.9	13.4
Canadian Pension Plan | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Canadian Pension Plan | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	7	6.9
Canadian Pension Plan | Fixed income securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Canadian Pension Plan | Fixed income securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	7	6.9
Canadian Pension Plan | Fixed income securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Canadian Pension Plan | Equities
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6.9	6.5
Canadian Pension Plan | Equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Canadian Pension Plan | Equities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	6.9	6.5
Canadian Pension Plan | Equities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Canadian Pension Plan | Other
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0.3	0.2
Canadian Pension Plan | Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0.3	0.2
Canadian Pension Plan | Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Canadian Pension Plan | Other | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 0	$ 0

Pension And Other Postretire_10

Pension And Other Postretirement Benefit Programs - Summary of Balance Sheet Impact of Postretirement Benefit Plans, Related Benefit Obligations, Assets, Funded Status Rate Assumptions (Details) - Postretirement Benefits Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Benefit obligations as of beginning of period	$ 62.2	$ 76.4
Service cost	0.2	0.4	$ 0.4
Interest cost	2.5	2.6	3.2
Plan participants' contributions	2.2	1.6
Effect of curtailment	0	(0.2)
Actuarial loss/(gain)	(10)	9
Benefits paid	9.2	9.6
Benefit obligation as of end of period	65.3	62.2	76.4
Fair value of plan assets as of beginning of period	0	0
Employer contribution	7	8
Plan participants' contribution	2.2	1.6
Benefits paid	9.2	9.6
Fair value of plan assets as of end of period	0	0	$ 0
Funded status of the plans	$ (65.3)	$ (62.2)

Pension And Other Postretire_11

Pension And Other Postretirement Benefit Programs - Healthcare Trend Rates (Details) - Retiree Health and Life Insurance Plans $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Effect on total service and interest cost components, one percentage point increase	$ 0
Effect on total service and interest cost components, one percentage point decrease	0
Effect on postretirement benefit obligation, one percentage point increase	(0.9)
Effect on postretirement benefit obligation, one percentage point decrease	$ 1.2

Pension And Other Postretire_12

Pension And Other Postretirement Benefit Programs - Amounts Recognized on the Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Pension benefit liabilities	$ (16)	$ (11.3)
Postretirement benefit liabilities	(59.7)	(55.7)
Retiree Health and Life Insurance Plans
Defined Benefit Plan Disclosure [Line Items]
Accounts payable and accrued expenses	(5.6)	(6.5)
Postretirement benefit liabilities	(59.7)	(55.7)
Net amount recognized	(65.3)	(62.2)
U.S. Pension Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension benefit liabilities	(13.9)	(9.3)
Net amount recognized	(13.9)	(9.3)
Canadian Pension Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension benefit liabilities	(2.1)	(2)
Net amount recognized	$ (2.1)	$ (2)

Pension And Other Postretire_13

Pension And Other Postretirement Benefit Programs - Amounts Recognized in AOCI (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Retiree Health and Life Insurance Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain	$ 30.5	$ 41
U.S. Plans | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain	(123.1)	(124.2)
Canadian Pension Plan | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain	$ (4.8)	$ (4.7)

Pension And Other Postretire_14

Pension And Other Postretirement Benefit Programs - Expected Future Benefit Payments (Details) $ in Millions	Dec. 31, 2019USD ($)
Retiree Health and Life Insurance Plans
U.S. Pension Benefits, Canadian Pension Benefits, and Retiree Health and Life Insurance Benefits, Gross
2020	$ 5.6
2021	5.3
2022	5
2023	4.6
2024	4.3
2025-2029	17.5
U.S. Pension Plan | Pension Plan
U.S. Pension Benefits, Canadian Pension Benefits, and Retiree Health and Life Insurance Benefits, Gross
2020	19.1
2021	19.1
2022	20.1
2023	21
2024	21.6
2025-2029	114.4
Canadian Pension Plan | Pension Plan
U.S. Pension Benefits, Canadian Pension Benefits, and Retiree Health and Life Insurance Benefits, Gross
2020	1.4
2021	1.3
2022	1.2
2023	1.2
2024	1.1
2025-2029	$ 5.3

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Gains expected to be reclassified to earnings within the next twelve months	$ 0.3
Cash flow hedging | Foreign currency forward
Derivative [Line Items]
Length of derivative hedge (up to)	18 months
Derivative, notional amount	$ 23.1	$ 24.9
Fair value hedging | Foreign currency forward
Derivative [Line Items]
Derivative, notional amount	$ 16.6	$ 17.7

Derivative Financial Instrume_4

Derivative Financial Instruments - Summary of Derivative Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Financial Liabilities	$ (42.9)	$ (99.3)
Derivative asset	0	1.1
Derivative liability	0.7	0
Foreign exchange contracts | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset	0	0
Derivative liability	0.3	0
Cash flow hedging | Foreign exchange contracts | Designated as hedging instruments
Derivatives, Fair Value [Line Items]
Derivative asset	0	1.1
Derivative liability	0.4	0
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Financial Liabilities	(0.7)
Long-term Debt
Derivatives, Fair Value [Line Items]
Financial Liabilities	$ (42.2)
Long-term Debt | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Financial Liabilities		$ (99.3)

Derivative Financial Instrume_5

Derivative Financial Instruments - Summary of Gain (Loss) on Derivative Instruments (Details) - Foreign exchange contracts - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flow hedges | Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in other comprehensive income (OCI)	$ (0.8)	$ 2	$ (1.9)
(Losses) gains reclassified from AOCI	0.7	(0.3)	(0.4)
Non-designated hedges
Derivative Instruments, Gain (Loss) [Line Items]
(Losses) gains recognized in income	$ 0.1	$ 1.5	$ (2)

Financial Instruments - Schedul

Financial Instruments - Schedule of Estimated Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	$ 0	$ 1.1
Financial Liabilities	(42.9)	(99.3)
Foreign exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	0	1.1
Financial Liabilities	(0.7)
Total Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	(42.2)
Total Debt | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities		(99.3)
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	0	1.1
Financial Liabilities	(0.7)	0
Level 1 | Foreign exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	0	1.1
Financial Liabilities	(0.7)
Level 1 | Total Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	0
Level 1 | Total Debt | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities		0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	0	0
Financial Liabilities	(42.2)	(99.3)
Level 2 | Foreign exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	0	0
Financial Liabilities	0
Level 2 | Total Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	(42.2)
Level 2 | Total Debt | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities		(99.3)
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	0	0
Financial Liabilities	0	0
Level 3 | Foreign exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	0	0
Financial Liabilities	0
Level 3 | Total Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	$ 0
Level 3 | Total Debt | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities		$ 0

Stockholders' Equity - Narrativ

Stockholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 21, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Mar. 31, 2019	May 03, 2019	Mar. 06, 2017
Class of Stock [Line Items]
Shares authorized to repurchase								$ 50
Repurchase of common stock (in shares)	4,504,504				2,500,000
Repurchase of common stock	$ 51.4	$ 51.4	$ 1	$ 40	$ 41
Repurchase of common stock (in dollars per share)	$ 11.42				$ 16.23
Share Repurchase Program, Additional authorized amount							$ 50
The Program | Common Stock
Class of Stock [Line Items]
Repurchase of common stock						$ 41

Stockholders' Equity - Componen

Stockholders' Equity - Components of AOCI and Related Tax Effect (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	$ (13.1)	$ 3.5	$ 7.3
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax Amount	(2.2)	(6)	7.2
Tax Impact	0	0	0
Other comprehensive income (loss)	(2.2)	(6)	7.2
Derivative gain (loss), net
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax Amount	(1.5)	2.3	(2)
Tax Impact	0.1	(0.6)	0.5
Other comprehensive income (loss)	(1.4)	1.7	(1.5)
Pension and postretirement adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax Amount	(9.5)	8.5	2.2
Tax Impact	0	(0.7)	(0.6)
Other comprehensive income (loss)	(9.5)	7.8	1.6
Accumulated other comprehensive (loss) income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-tax Amount	(13.2)	4.8	7.4
Tax Impact	0.1	(1.3)	(0.1)
Other comprehensive income (loss)	$ (13.1)	$ 3.5	$ 7.3

Stockholders' Equity - Summary

Stockholders' Equity - Summary of AOCI Activity (Details) - USD ($) $ in Millions	Jan. 01, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 550	$ 391	$ 550	$ 623.5
Other comprehensive income (loss)		(13.1)	3.5	7.3
Ending balance		268.3	391	550
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax Cuts And Jobs Act, reclassification from AOCI to Acumulated deficit	0
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	7.7	1.7	7.7
Other comprehensive (loss) before reclassifications, net of tax impact		(2.2)	(6)
Amounts reclassified from accumulated other comprehensive income		0	0
Other comprehensive income (loss)		(2.2)	(6)	7.2
Ending balance		(0.5)	1.7	7.7
AOCI tax (expense) benefit		0	0
Derivative Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax Cuts And Jobs Act, reclassification from AOCI to Acumulated deficit		0.1
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1)	0.8	(1)
Other comprehensive (loss) before reclassifications, net of tax impact		(0.7)	1.4
Amounts reclassified from accumulated other comprehensive income		0.7	0.3
Other comprehensive income (loss)		(1.4)	1.7	(1.5)
Ending balance		(0.6)	0.8	(1)
AOCI tax (expense) benefit		(0.5)	0.7
Pension and postretirement adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax Cuts And Jobs Act, reclassification from AOCI to Acumulated deficit		(12.7)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(59.2)	(64.1)	(59.2)
Other comprehensive (loss) before reclassifications, net of tax impact		(16.5)	1.2
Amounts reclassified from accumulated other comprehensive income		7	6.6
Other comprehensive income (loss)		(9.5)	7.8	1.6
Ending balance		(73.6)	(64.1)	(59.2)
AOCI tax (expense) benefit		1	1.2
Accumulated other comprehensive (loss) income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax Cuts And Jobs Act, reclassification from AOCI to Acumulated deficit		(12.6)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ (52.5)	(61.6)	(52.5)	(59.8)
Other comprehensive (loss) before reclassifications, net of tax impact		(19.4)	(3.4)
Amounts reclassified from accumulated other comprehensive income		6.3	6.9
Other comprehensive income (loss)		(13.1)	3.5	7.3
Ending balance		(74.7)	(61.6)	$ (52.5)
AOCI tax (expense) benefit		$ 0.5	$ 1.9

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of Amounts Reclassified from AOCI (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold									$ 541	$ 585	$ 553
Net earnings (loss) from discontinued operations									10.4	(143.9)	(24.7)
Net sales	$ 141.3	$ 165.6	$ 177.7	$ 141.7	$ 153.8	$ 208.9	$ 201.2	$ 164.3	626.3	728.2	704.1
(Loss) income from continuing operations before income taxes									67.3	25.1	19.1
Income tax expense (benefit)									1.6	(6)	(2)
Net (loss) income									58.5	163	41.8
Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period									6.3	6.9	7.4
Derivative Adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period									(0.7)	(0.3)
Derivative Adjustments | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Loss) income from continuing operations before income taxes									(0.7)	0.4	0.6
Income tax expense (benefit)									0	(0.1)	(0.2)
Net (loss) income									(0.7)	0.3	0.4
Derivative Adjustments | Reclassification out of accumulated other comprehensive income | Purchases | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold									(0.4)	(0.1)	0.1
Net earnings (loss) from discontinued operations									0	0	(0.1)
Derivative Adjustments | Reclassification out of accumulated other comprehensive income | Sales | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales									(0.3)	0.4	0.3
Prior service cost amortization | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expense, net									0	0	0.4
Amortization of net actuarial loss | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expense, net									7	8.4	8.4
Pension and Postretirement Adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period									(7)	(6.6)
Pension and Postretirement Adjustments | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total expense before tax									7	8.3	8.8
Tax impact									0	(1.8)	(1.8)
Total reclassifications for the period									7	6.6	7
Discontinued Operations, Disposed of by Sale | Derivative Adjustments | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax impact									0	0	0
Discontinued Operations, Disposed of by Sale | Derivative Adjustments | Reclassification out of accumulated other comprehensive income | Sales | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net earnings (loss) from discontinued operations									0	0.1	0.3
Discontinued Operations, Disposed of by Sale | Amortization of net actuarial loss | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net earnings (loss) from discontinued operations									0	(0.1)	0
Discontinued Operations, Disposed of by Sale | Pension and Postretirement Adjustments | Reclassification out of accumulated other comprehensive income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax impact									$ 0	$ (0.1)	$ 0

Litigation and Related Matters

Litigation and Related Matters (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Environmental liabilities	$ 0	$ 0

Quarterly Financial Informati_3

Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 141.3	$ 165.6	$ 177.7	$ 141.7	$ 153.8	$ 208.9	$ 201.2	$ 164.3	$ 626.3	$ 728.2	$ 704.1
Gross profit	15.2	11.8	36.2	22.1	25	45.2	43.7	29.3	85.3	143.2	151.1
Net earnings (loss) from continuing operations	$ (27.9)	$ (29.7)	$ 5.3	$ (16.6)	$ (14.9)	$ 3.3	$ 2.9	$ (10.4)	$ (68.9)	$ (19.1)	$ (17.1)
Per share of common stock:
Basic (in dollars per share)	$ (1.27)	$ (1.36)	$ 0.20	$ (0.63)	$ (0.57)	$ 0.13	$ 0.11	$ (0.40)	$ (2.42)	$ (6.27)	$ (1.54)
Diluted (in dollars per share)	$ (1.27)	$ (1.36)	$ 0.20	$ (0.63)	$ (0.57)	$ 0.13	$ 0.11	$ (0.40)	$ (2.42)	$ (6.27)	$ (1.54)

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Reserves (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets				$ (4.1)
Provision for bad losses
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$ 0.6	$ 0.4	$ 0.3
Additions charged to earnings	0.3	0.2	0.1
Deductions	(0.1)	0	0
Balance at end of year	0.8	0.6	0.4
Provision for discounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	5.6	6	4.8
Additions charged to earnings	72.1	61	55.3
Deductions	(69.3)	(59.7)	(54.1)
Balance at end of year	8.4	5.6	6
Provision for warranties
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	6.4	5.6	5.1
Additions charged to earnings	9.4	6.6	9.4
Deductions	(6.8)	(7.5)	(8.9)
Balance at end of year	9	6.4	5.6
Reserve for inventories
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	0.6	0.9	0.7
Additions charged to earnings	3.9	0.3	0.4
Deductions	(3.1)	(0.6)	(0.2)
Balance at end of year	$ 1.4	$ 0.6	$ 0.9