Clearwater Paper (CLW) 10-K 15 Feb 22 2021 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Feb. 14, 2022	Jun. 30, 2021
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Registrant Name	CLEARWATER PAPER CORPORATION
Entity Central Index Key	0001441236
Current Fiscal Year End Date	--12-31
Entity File Number	001-34146
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		16,692,540
Document Annual Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-3594554
Entity Address, Postal Zip Code	99201
Entity Address, Address Line Two	Suite 1100
Entity Address, Address Line One	601 West Riverside,
Entity Address, State or Province	WA
Entity Address, City or Town	Spokane,
City Area Code	509
Local Phone Number	344-5900
Title of 12(b) Security	Common Stock ($0.0001 par value per share)
Trading Symbol	CLW
Security Exchange Name	NYSE
Entity Interactive Data Current	Yes
Entity Public Float			$ 481.2
ICFR Auditor Attestation Flag	true
Document Period End Date	Dec. 31, 2021
Entity Shell Company	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Document and Entity Information [Abstract]
Auditor Name	KPMG LLP
Auditor Firm ID	185
Auditor Location	Seattle, Washington

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 25.2	$ 35.9
Receivables, net of allowance for current expected credit losses of $1.4 and $1.6 at December 31, 2021 and 2020	167.4	160.6
Inventories	277.7	263.3
Other current assets	16.9	15.2
Total current assets	487.2	474.9
Property, plant and equipment, net	1,081.8	1,191.5
Other assets, net	121.1	134
Total assets	1,690.1	1,800.4
Current liabilities:
Current portion of long-term debt	1.6	1.7
Accounts Payable and Accrued Liabilities, Current, Total	252.5	243.1
Total current liabilities	254.1	244.8
Long-term debt	637.6	716.4
Liability for pension and other postretirement employee benefits	73.6	80.5
Deferred tax liabilities and other long-term obligations	213.1	237.6
Total liabilities	1,178.3	1,279.3
Stockholders' equity:
Preferred stock, par value $0.0001 per share, 5,000,000 shares authorized, no shares issued	0	0
Common stock, par value $0.0001 per share, 100,000,000 shares authorized, 16,692,102 and 16,573,246 shares issued	0	0
Additional paid-in capital	23.6	16.6
Retained earnings	530.7	558.8
Accumulated other comprehensive loss, net of tax	(42.6)	(54.3)
Total liabilities and stockholders' equity	1,690.1	1,800.4
Stockholders' Equity Attributable to Parent, Total	$ 511.7	$ 521.1

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ (1.4)	$ (1.6)
Preferred Stock, Par or Stated Value Per Share	$ 0.0001
Preferred Stock, Shares Authorized	5,000,000
Preferred Stock, Shares Issued	0
Common Stock, Par or Stated Value Per Share	$ 0.0001
Common stock, authorized (in shares)	100,000,000
Common stock, shares issued (in shares)	16,692,102	16,573,246

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,772.6	$ 1,868.6	$ 1,761.5
Costs and expenses:
Cost of sales	(1,590)	(1,574.4)	(1,597)
Selling, general and administrative expenses	(112.9)	(122)	(112.8)
Other Cost and Expense, Operating	57.7	14	6.3
Total operating costs and expenses	1,760.6	1,710.4	1,716.1
Income from operations	12	158.1	45.4
Interest expense, net	(36.4)	(46.5)	(44.9)
Debt retirement costs	(1)	(5.9)	(2.7)
Other non-operating expense	(10.4)	(7.6)	(5.7)
Income (loss) before income taxes	(35.7)	98.2	(7.9)
Income tax provision (benefit)	7.7	(21.1)	2.3
Net income (loss)	$ (28.1)	$ 77.1	$ (5.6)
Net earnings per common share:
Earnings per share, basic	$ (1.67)	$ 4.65	$ (0.34)
Earnings per share, diluted	$ (1.67)	$ 4.61	$ (0.34)
Weighted average number of shares outstanding, basic	16,767	16,569	16,533
Weighted average number of shares outstanding, diluted	16,767	16,724	16,533

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net earnings	$ (28.1)	$ 77.1	$ (5.6)
Defined benefit pension and other postretirement employee benefits:
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	4	(2.1)	2.7
Amortization of actuarial loss included in net periodic cost, net of tax of $2.7, $2.5 and $1.9	7.8	7.3	5.1
Other comprehensive (loss) income, net of tax	11.7	5.2	7.8
Comprehensive income	$ (16.3)	$ 82.3	$ 2.2

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net (loss) gain arising during the period, tax benefit (provision)	$ (1.4)	$ 0.7	$ (0.9)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax	(2.7)	(2.5)	(1.9)
Net earnings	$ (28.1)	$ 77.1	$ (5.6)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ (28.1)	$ 77.1	$ (5.6)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	105	111	115.6
Equity-based compensation expense	9.1	10.5	4.1
Deferred Income Taxes and Tax Credits	(9.7)	33.5	(0.3)
Defined benefit pension and other postretirement employee benefits	7.2	3.8	1.4
Amortization of deferred debt costs and debt retirement	2.8	8	4.7
(Gain) loss on sale or impairment associated with divested assets	35.7	(1.4)	0
(Increase) decrease in accounts receivable	(5.3)	6.1	(18)
(Increase) decrease in inventory	(20.2)	18.1	(21.2)
Increase in other current assets	(1.7)	(11.2)	(0.8)
Increase (Decrease) in Accounts Payable and Accrued Liabilities	1.9	(12)	(28.5)
Other, net	(0.2)	3.4	4.1
Net cash flows provided by operating activities	96.4	247	55.6
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment	(38.4)	(39.6)	(140.1)
Net proceeds from divested assets	13.3	0	0
Net cash flows used in investing activities	(25.1)	(39.6)	(140.1)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings of short-term debt	0	108.5	549.3
Repayments of short-term debt	0	(122)	(657.7)
Borrowings of long-term debt	0	275	296.1
Repayment of long-term debt	(81)	(449.4)	(103)
Payments for debt issuance costs	0	(4.4)	(2.3)
Other, net	(1.1)	(0.7)	(0.4)
Net cash flows (used in) provided by financing activities	(82)	(192.9)	82
Increase (decrease) in cash, cash equivalents and restricted cash	(10.7)	14.4	(2.5)
Cash, cash equivalents and restricted cash at beginning of period	26.2	36.9	22.4
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest, net of amounts capitalized	36	45	38.4
Cash (received) paid for income taxes	$ (7.7)	$ (7.9)	$ 3.1

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent, Total	$ 426.4		$ 6.4	$ 487.3	$ (67.3)
Shares, Outstanding, Beginning Balance at Dec. 31, 2018		16,482
Stockholders' Equity Attributable to Parent, Beginning Balance at Dec. 31, 2018	426.4		6.4	487.3	(67.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	(5.6)			(5.6)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			3.8
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	3.8
Performance share and restricted stock unit awards (in shares)		33
Performance share and restricted stock unit awards	0.4		0.4
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	7.8				(7.8)
Shares, Outstanding, Ending Balance at Dec. 31, 2019		16,515
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent, Total	432		9.8	481.7	(59.5)
Stockholders' Equity Attributable to Parent, Beginning Balance at Dec. 31, 2019	432		9.8	481.7	(59.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	77.1			77.1
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			7.6
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	7.6
Performance share and restricted stock unit awards (in shares)		57
Performance share and restricted stock unit awards	0.7		0.7
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	5.2				(5.2)
Shares, Outstanding, Ending Balance at Dec. 31, 2020		16,572
Common Stock, Value, Issued, Ending Balance at Dec. 31, 2020	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent, Total	521.1		16.6	558.8	(54.3)
Stockholders' Equity Attributable to Parent, Beginning Balance at Dec. 31, 2020	521.1		16.6	558.8	(54.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	(28.1)			(28.1)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			8
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	8
Performance share and restricted stock unit awards (in shares)		119
Performance share and restricted stock unit awards	1.1		1.1
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	11.7				(11.7)
Shares, Outstanding, Ending Balance at Dec. 31, 2021		16,692
Common Stock, Value, Issued, Ending Balance at Dec. 31, 2021	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity Attributable to Parent, Total	$ 511.7		$ 23.6	$ 530.7	$ (42.6)

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension and OPEB, Tax	$ 4.2	$ 1.8	$ 2.8

Debt

Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Maturities of Long-term Debt [Table Text Block]	Scheduled principal payments for debt and minimum finance lease obligations at the balance sheet date are as follows: (In millions) December 31, 2021 2022 $ 1.6 2023 1.5 2024 1.5 2025 301.7 2026 51.9 Thereafter 285.9 $ 644.1
Schedule of Long-term Debt Instruments [Table Text Block]	Long-term debt at the balance sheet dates consisted of: December 31, 2021 December 31, 2020 (In millions) Interest Rate at Principal Unamortized Debt Costs Total Principal Unamortized Debt Costs Total Term loan maturing 2026, variable interest rate 3.1% $ 50.0 $ (0.6) $ 49.4 $ 129.3 $ (1.9) $ 127.4 2014 Notes, maturing 2025, fixed interest rate 5.4% 300.0 (0.9) 299.1 300.0 (1.2) 298.8 2020 Notes, maturing 2028, fixed interest rate 4.8% 275.0 (3.4) 271.6 275.0 (3.9) 271.1 ABL Credit Agreement, variable interest rates 3.5% — — — — — — Finance leases 19.1 — 19.1 20.8 — 20.8 Total debt 644.1 (4.8) 639.2 725.0 (6.9) 718.1 Less: current portion (1.6) — (1.6) (1.7) — (1.7) Net long-term portion $ 642.5 $ (4.8) $ 637.6 $ 723.3 $ (6.9) $ 716.4

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	Summary of Significant Accounting Policies NATURE OF OPERATIONS AND BASIS OF PRESENTATION We are a premier supplier of bleached paperboard and consumer and parent roll tissue. We supply bleached paperboard to quality-conscious printers and packaging converters, and offer services that include custom sheeting, slitting and cutting. We supply private label tissue to major retailers and wholesale distributors, including grocery, club, mass merchants and discount stores. Unless the context otherwise requires or unless otherwise indicated, references in this report to “Clearwater Paper Corporation,” “we,” “our,” “the Company” and “us” refer to Clearwater Paper Corporation and its subsidiaries. USE OF ESTIMATES The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of net sales and expenses during the reporting period. Actual results could differ from those estimates. PRINCIPLES OF CONSOLIDATION These consolidated financial statements include the financial condition and results of operations of Clearwater Paper Corporation and its wholly-owned subsidiaries. All intercompany transactions and balances between operations within the Company have been eliminated. CASH, CASH EQUIVALENTS AND RESTRICTED CASH We consider all highly liquid instruments with maturities of three months or less to be cash equivalents. Cash that is held by a third party and has restrictions on its availability to us is classified as restricted cash. The following table provides a reconciliation of cash and cash equivalents and restricted cash reported on the Consolidated Balance Sheets to the sum of those same amounts shown in our Consolidated Statements of Cash Flows. December 31, (In millions) 2021 2020 2019 Cash and cash equivalents $ 25.2 $ 35.9 $ 20.0 Restricted cash — — 1.4 Restricted cash included in Other assets, net 1.1 1.1 1.0 Total cash, cash equivalents and restricted cash $ 26.2 $ 36.9 $ 22.4 ACCOUNTS RECEIVABLE Receivables consist of: December 31, (In millions) 2021 2020 Trade accounts receivable $ 154.1 $ 139.0 Allowance for current expected credit losses (1.4) (1.6) Unbilled receivables 7.2 5.1 Taxes receivable 6.1 16.0 Other 1.4 2.1 $ 167.4 $ 160.6 INVENTORIES Our inventories are stated at the lower of net realizable value or current cost using the average cost method. December 31, (In millions) 2021 2020 Logs, chips and sawdust $ 13.7 $ 17.2 Pulp 15.9 11.5 Paperboard and tissue products 148.0 137.0 Materials and supplies 100.1 97.7 $ 277.7 $ 263.3 PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment are stated at cost, including assets acquired under finance lease obligations, and any interest costs capitalized, less accumulated depreciation. Depreciation of buildings, equipment and other depreciable assets is determined using the straight-line method. Estimated useful lives generally range from 10 to 40 years for land improvements, 10 to 40 years for buildings and improvements and 2 to 25 years for machinery and equipment (includes office and other equipment). December 31, (In millions) 2021 2020 Land and land improvements $ 109.1 $ 111.5 Buildings and improvements 452.5 480.1 Machinery and equipment 2,377.5 2,459.2 Construction in progress 22.4 21.8 2,961.5 3,072.6 Less accumulated depreciation and amortization (1,879.7) (1,881.1) Property, plant and equipment, net $ 1,081.8 $ 1,191.5 At December 31, 2021 and 2020, included within property, plant and equipment, net were finance leases of $27.7 million and $26.7 million and associated accumulated depreciation amounts of $15.2 million and $12.7 million. Depreciation expense totaled $102.0 million, $107.8 million and $108.4 million for the years ended December 31, 2021, 2020 and 2019. Capitalized interest is charged to and amortized over the lives of the related assets. For the years ended December 31, 2021, 2020 and 2019 capitalized interest expense was $0.3 million, zero, and $5.9 million. PLANNED MAINTENANCE We recognize the cost of repair and maintenance activities in the period in which the activity is performed or goods are received under the direct expense method. We perform planned maintenance activities at our facilities periodically and associated expenses are included in cost of sales. LEASES Operating lease right-of-use (ROU) assets and liabilities are recognized at the commencement date of a lease based on the present value of lease payments over the lease term. Our leases may include options to extend or terminate the lease. These options to extend are included in the lease term when it is reasonably certain that we will exercise that option. Some leases have variable payments, however, because they are not based on an index or rate, they are not included in the ROU assets and liabilities. Variable payments for real estate leases primarily relate to common area maintenance, insurance, taxes and utilities. Variable payments for equipment, vehicles, and leases within supply agreements primarily relate to usage, repairs and maintenance. As the implicit rate is not readily determinable for most of our leases, we apply a portfolio approach using an estimated incremental borrowing rate to determine the initial present value of lease payments over the lease terms on a collateralized basis over a similar term, which is based on market and company specific information. We use our unsecured borrowing rate and risk-adjust that rate to approximate a collateralized rate. Leases having a lease term of twelve months or less are not recorded on the balance sheet and the related lease expense is recognized on a straight-line basis over the term of the lease. In addition, the Company has applied the practical expedient to account for the lease and non-lease components as a single lease component for all of the Company's leases. See Note 4, "Leases" for further information. RETIREMENT PLANS AND POSTRETIREMENT BENEFITS We are required to use actuarial methods and assumptions in the valuation of defined benefit obligations and other postretirement obligations and the determination of expense. Differences between actual and expected results or changes in the values of the obligations and plan assets are not recognized in earnings as they occur but, rather, systematically and gradually over subsequent periods. See Note 11, "Retirement Plans and Postretirement Benefits" for further information. INCOME TAXES Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The determination of our provision for income taxes requires significant judgment, the use of estimates, and the interpretation and application of complex tax laws. Significant judgment is required in assessing the timing and amounts of deductible and taxable items and the probability of sustaining uncertain tax positions. The benefits of uncertain tax positions are recorded in our consolidated financial statements only after determining a more-likely-than-not probability that the uncertain tax positions will withstand challenge, if any, from tax authorities. When facts and circumstances change, we reassess these probabilities and record any changes in the consolidated financial statements as appropriate. See Note 6, "Income Taxes" for further information. REVENUE RECOGNITION We enter into contracts that can include various combinations of tissue and paperboard products, which are generally distinct and accounted for as separate performance obligations. Generally, revenue is recognized at a point in time upon transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. Transfer of control typically occurs when the title and risk of loss passes to the customer. Shipping terms generally indicate when title and the risk of loss have passed, usually this is upon receipt at our customer's destination. We have elected to treat shipping and handling costs as a fulfillment cost. We typically expense incremental direct costs of obtaining a contract (sales commissions) when incurred because the amortization period is generally 12 months or less. We maintain consignment inventory at a limited number of customer locations. For consigned inventory, we recognize revenue upon transfer of control, which is often in advance of invoicing the customer. These amounts are classified as unbilled receivables in the above detail of accounts receivable. We provide for trade promotions, customer cash discounts and other deductions, which are considered variable consideration and recorded as a reduction of net sales. Returns and credits are estimated at contract inception and updated at the end of each reporting period as additional information becomes available. Revenue, net of returns and credits, is only recognized to the extent that it is probable that a significant reversal of any incremental revenue will not occur. Judgment associated with forecasted volumes is required to determine the most probable amount of variable consideration to apply as a reduction to net sales. As of December 31, 2021 and 2020, we had $9.2 million and $10.5 million accrued as customer rebates. Revenue is recognized net of any taxes collected from customers. See Note 16, "Segment Information" for further information, including the disaggregation of revenue by segment, primary geographical market, and major product type. OTHER OPERATING CHARGES, NET We classify significant amounts unrelated to ongoing core operating activities as “Other operating charges, net” in the Consolidated Statements of Operations. Such items include, but are not limited to, amounts related to facility closures and related gain (loss) on sale and impairment, restructuring charges (including severance charges), charges to establish and maintain litigation or environmental reserves, gains or losses from settlements with governmental or other organizations and cash settled equity-based compensation to our directors. Due to the nature of these items, amounts in the statement of operations can fluctuate from year to year. The determination of which items are considered significant and unrelated to core operations is based upon management’s judgment. See Note 9, "Other Operating Charges, net" for a discussion of specific amounts in 2021, 2020 and 2019. ACCOUNTS RECEIVABLE ARRANGEMENT During 2019, we entered into an uncommitted supply-chain financing program with a global financial institution under which a specific customer's trade accounts receivable may be acquired, without recourse, by the institution at a discounted rate. Available capacity under this program is dependent on the level of our trade accounts receivable with this customer and the financial institution’s willingness to purchase such receivables. We have no servicing responsibilities under this agreement. This agreement allows us to obtain payment more quickly than under the contractual terms of sale to this customer. Receivables sold are de-recognized from our Consolidated Balance Sheet. For the years ended December 31, 2021 and 2020, we sold $202.2 million and $256.2 million, of receivables. The proceeds from these sales of receivables are included within operating activities in our Consolidated Statements of Cash Flows. For the years ended December 31, 2021, 2020, and 2019 factoring expense on the sale of receivables was $0.9 million, $1.2 million, and $1.0 million. ENVIRONMENTAL AND ASSET RETIREMENT OBLIGATIONS We estimate our environmental and asset retirement obligations based on various assumptions and judgments, the specific nature of which varies in light of the particular facts and circumstances surrounding each liability. These estimates typically reflect assumptions and judgments as to the probable nature, magnitude and timing of required investigation, remediation and monitoring activities and the probable cost of these activities. We have accrued only for specific costs related to environmental matters that we have determined are probable and for which an amount can be reasonably estimated. For asset retirement obligations, the liability is accreted to its settlement value and, where appropriate, the capitalized cost is depreciated over the useful life of the related asset. Upon settlement of the liability, we recognize a gain or loss for any difference between the settlement amount and the liability recorded. Our asset retirement obligation is included in "Other long-term obligations" in the Consolidated Balance Sheets. Our asset retirement obligation reflects the estimated present value of our obligations for capping, closure and post closure cost with respect to landfills, asbestos remediation and other ongoing environmental monitoring. The following table represents the activity associated with our asset retirement obligations. For The Years Ended December 31, (In millions) 2021 2020 Beginning balance $ 3.8 $ 1.1 Accretion expense 0.1 0.1 Adjusted to expense during the year — 0.1 Adjusted to other operating charges, net (1.8) 2.5 Payments made (0.1) — Ending balance $ 2.0 $ 3.8

Recently Adopted and New Accoun

Recently Adopted and New Accounting Standards	12 Months Ended
	Dec. 31, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements, Policy	Recently Adopted and New Accounting Standards RECENTLY ADOPTED In December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2019-12, Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes , which removes certain exceptions, such as the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year, and simplifies the accounting for income taxes in areas such as franchise tax (or similar tax) that is partially based on income. The new standard is effective for annual and interim periods beginning after December 15, 2020. This ASU was adopted as of January 1, 2021 and did not have a material impact on our consolidated financial statements. NEW ACCOUNTING STANDARDS In November 2021, the FASB issued ASU 2021-10, Disclosures by Business Entities About Government Assistance (Topic 832),

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements 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. The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. We are required to classify these financial assets and liabilities into two groups: recurring-measured on a periodic basis and non-recurring-measured on an as needed basis. There are three levels of inputs that may be used to measure fair value: Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical unrestricted assets or liabilities. Level 2: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in inactive markets; or valuations based on models where the significant inputs are observable or can be corroborated by observable market data. Level 3: Valuations based on models where significant inputs are not observable. Unobservable inputs are used when little or no market data is available and reflect the Company’s own assumptions about the assumptions market participants would use. Carrying amounts reported on the balance sheets for cash and cash equivalents, restricted cash, receivables and accounts payable approximate fair value due to the short-term maturity of these instruments. See discussion on fair market values for Long-term Debt included within Note 8, "Debt". We review the carrying values of goodwill and long-lived assets to be held and used for impairment wherever events or changes in circumstances indicate possible impairment. An impairment loss is recognized when a long-lived asset's carrying value is not recoverable and exceeds estimated fair value. See Note 5, "Goodwill and Intangible Assets" for discussion of fair market values for goodwill.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	4 LeasesWe have operating leases for manufacturing, office, warehouse, equipment and vehicles. Our leases have remaining lease terms from less than one COMPONENTS OF LEASE EXPENSE For The Years Ended December 31, (In millions) 2021 2020 2019 Operating lease costs $ 16.6 $ 15.9 $ 15.0 Finance lease costs: Amortization of ROU assets 1.8 1.8 1.7 Interest on lease liabilities 1.7 1.8 1.9 Total finance lease costs 3.5 3.5 3.6 Variable lease costs 1.7 1.6 1.2 Total lease costs $ 21.8 $ 21.0 $ 19.8 SUPPLEMENTAL BALANCE SHEET INFORMATION December 31, (In millions) Classification 2021 2020 Lease ROU assets Operating lease assets Other assets, net $ 53.6 $ 63.5 Finance lease assets, net Property, plant and equipment, net 12.5 14.0 Total lease ROU assets $ 66.1 $ 77.5 Lease Liabilities Current operating lease liabilities Accounts payable and accrued liabilities $ 16.1 $ 15.3 Current finance lease liabilities Current portion of long-term debt $ 1.6 $ 1.7 Non-current operating lease liabilities Deferred tax liabilities and other long-term obligations $ 42.7 $ 54.3 Non-current finance lease liabilities Long-term debt $ 17.5 $ 19.1 Total operating lease liabilities $ 58.8 $ 69.5 Total finance lease liabilities 19.1 20.8 Total lease liabilities $ 77.9 $ 90.3 LEASE TERM AND DISCOUNT RATE December 31, 2021 2020 Weighted average remaining lease term (years) Operating leases 5.3 5.8 Finance leases 9.0 9.8 Weighted average discount rate Operating leases 4.8 % 4.9 % Finance leases 8.4 % 8.4 % SUPPLEMENTAL CASH FLOW INFORMATION For The Years Ended December 31, (In millions) 2021 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 18.8 $ 17.9 $ 16.6 Operating cash flows from finance leases 1.6 1.8 1.9 Financing cash flows from finance leases 1.7 1.6 1.3 Non-cash amounts for lease liabilities arising from obtaining ROU assets: Operating leases $ 5.0 $ 4.4 $ 2.5 Finance leases — 0.3 0.5 MATURITY OF LEASE LIABILITIES As of December 31, 2021, our future maturities of lease liabilities were as follows: (In millions) Operating Finance 2022 $ 18.5 $ 3.2 2023 11.7 2.9 2024 8.4 2.8 2025 7.8 2.8 2026 7.8 2.9 Thereafter 12.7 13.0 Total lease payments 66.9 27.6 Less imputed interest (8.1) (8.5) Present value of lease liabilities $ 58.8 $ 19.1

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Changes in the carrying amounts of goodwill and intangible assets allocated to each segment were as follows: Consumer Products Pulp and Paperboard Total (In millions) Intangibles Goodwill Intangibles Balance as of December 31, 2019 $ 0.3 $ 35.1 $ 16.6 $ 52.0 Amortization (0.3) — (2.9) (3.2) Balance as of December 31, 2020 — 35.1 13.7 48.8 Amortization — — (2.9) (2.9) Balance as of December 31, 2021 $ — $ 35.1 $ 10.8 $ 45.9 As of December 31, 2021, intangible assets consisted of $10.7 million customer relationships, and $0.1 million of other intangibles. As of December 31, 2020, intangible assets consisted of $12.8 million of customer relationships, $0.7 million of tradenames and trademarks and $0.2 million of other intangibles. Outstanding definite-lived intangible assets are amortized over their useful lives of 10 years. We annually evaluate goodwill for possible impairment as of November 1 with additional interim evaluation performed when management believes that it is more likely than not that events or circumstances have occurred that would result in the impairment of a reporting unit’s goodwill. We evaluate our intangible assets for impairment when events or changes in circumstances indicate that the carrying value may not be recoverable. The gross book value and accumulated amortization of definite lived intangible assets at December 31, 2021 was $34.9 million and $24.1 million. The gross book value and accumulated amortization of definite lived intangible assets at December 31, 2020 was $63.8 million and $50.1 million. As of December 31, 2021, estimated future amortization expense related to intangible assets is as follows: (In millions) Amount 2022 $ 2.2 2023 2.1 2024 2.1 2025 2.1 2026 2.1 Total $ 10.8

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	6 Income Taxes We are subject to corporate level federal and state income taxes in the United States. IMPACT OF THE CARES ACT On March 27, 2020, the "Coronavirus Aid, Relief and Economic Security (CARES) Act" was signed. The CARES Act, among other things, included provisions relating to refundable payroll tax credits, deferment of employer side social security payments, net operating loss carry back periods, alternative minimum tax credit refunds, modifications to net interest deduction limitations, increased limitations on qualified charitable contributions, and technical corrections to tax depreciation methods for qualified improvements property. During 2020, we recognized a $7.0 million benefit from the provisions of the Act. INCOME TAX PROVISION (BENEFIT) The components of income tax provision (benefit) is comprised of the following: For The Years Ended December 31, (In millions) 2021 2020 2019 Current Federal $ 1.3 $ (17.4) $ (2.1) State 0.7 1.8 0.1 Total current 2.0 (15.6) (2.0) Deferred Federal (8.8) 32.5 (0.6) State (0.9) 4.2 0.3 Total deferred (9.7) 36.7 (0.3) Income tax provision (benefit) $ (7.7) $ 21.1 $ (2.3) The income tax provision (benefit) differs from the amount computed by applying the statutory federal income tax rate to income (loss) before income taxes due to the following: For The Years Ended December 31, (In millions) 2021 % 2020 % 2019 % Tax at the statutory rate $ (7.5) 21.0 % $ 20.6 21.0 % $ (1.7) 21.0 % State and local taxes, net of federal income tax impact 0.2 (0.5) % 5.6 5.7 % (0.9) 11.4 % Adjustment for state deferred tax rate (0.4) 1.2 % (0.3) (0.3) % (1.2) 15.5 % CARES Act net operating loss carryback — — % (7.0) (7.1) % — — % Federal credits 0.1 (0.2) % (1.3) (1.3) % (2.3) 29.4 % Uncertain tax positions (0.2) 0.5 % 2.2 2.2 % 0.7 (9.4) % Stock compensation (0.5) 1.4 % 1.2 1.2 % 0.6 (7.0) % Non-deductible expenses 0.7 (2.0) % 1.1 1.1 % 0.4 (5.2) % Change in valuation allowances — 0.1 % 0.1 0.1 % 2.3 (29.2) % Other, net (0.1) 0.2 % (1.1) (1.1) % (0.2) 2.9 % Income tax provision (benefit) $ (7.7) 21.6 % $ 21.1 21.5 % $ (2.3) 29.4 % DEFERRED TAXES The tax effects of significant temporary differences creating deferred tax assets and liabilities at December 31 were: (In millions) 2021 2020 Deferred tax assets: Employee benefits $ 3.4 $ 3.4 Postretirement employee benefits 18.5 19.2 Incentive compensation 6.6 5.2 Inventories 0.2 0.6 Pensions — 0.2 Federal and state credit carryforwards 13.5 16.2 Federal and state net operating losses 4.1 3.9 Operating leases 15.2 18.0 Other — 1.8 Total deferred tax assets 61.5 68.5 Valuation allowance (5.4) (5.4) Deferred tax assets, net of valuation allowance 56.1 63.1 Deferred tax liabilities: Property, plant and equipment, net (185.5) (199.7) Operating leases (13.8) (16.4) Pensions (1.5) — Intangible assets, net (2.3) (3.0) Other (0.6) — Total deferred tax liabilities (203.7) (219.1) Net deferred tax liabilities $ (147.6) $ (156.0) Net deferred tax assets (liabilities) consist of: December 31, (In millions) 2021 2020 Non-current deferred tax assets 1 $ 2.2 $ 2.1 Non-current deferred tax liabilities (149.9) (158.1) Net deferred tax liabilities $ (147.6) $ (156.0) 1 Included in "Other assets, net" on our accompanying December 31, 2021 and 2020 Consolidated Balance Sheets. We have tax benefits associated with state jurisdictions totaling $9.1 million which expire between 2022 and 2041. UNCERTAIN TAX POSITIONS The following table provides a roll forward of our unrecognized tax benefits and associated interest and penalties. (In millions) Gross Interest Total Gross Balance at December 31, 2019 $ 3.7 $ 0.4 $ 4.1 Change in prior year tax positions 2.0 (0.1) 1.9 Change in current year tax positions 0.4 — 0.4 Balance at December 31, 2020 6.1 0.3 6.4 Change in prior year tax positions (0.7) — (0.7) Change in current year tax positions 0.2 — 0.2 Balance at December 31, 2021 $ 5.6 $ 0.3 $ 5.9 Unrecognized tax benefits net of related deferred tax assets at December 31, 2021, if recognized, would have favorably impacted our effective tax rate by decreasing our tax provision by $5.5 million. For each of the years ended December 31, 2020 and 2019, if recognized, the balance of unrecognized tax benefits would have favorably impacted our effective tax rate by $6.4 million and $3.5 million. We reflect accrued interest related to tax obligations, as well as penalties, in our provision for income taxes. For each of the years ended December 31, 2021, 2020, and 2019, we accrued interest of less than $0.1 million each year in our income tax provision and no penalties in our income tax provision. We have operations in many states within the U.S. and are subject, at times, to tax audits in these jurisdictions. With a few exceptions, we are no longer subject to U.S. federal, state and local, or foreign income tax examinations by tax authorities for years prior to 2015. We expect that the outcome of any examination will not have a material effect on our consolidated financial statements. Although the timing of resolution of audits is not certain, we evaluate all audit issues in the aggregate, along with the expiration of applicable statutes of limitations, and estimate that it is reasonably possible the total gross unrecognized tax benefits could decrease by approximately $2.6 million within the next 12 months.

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	12 Months Ended
	Dec. 31, 2021
Accounts Payable and Accrued Liabilities, Current [Abstract]
Accounts Payable and Accrued Liabilities	7 Accounts Payable and Accrued Liabilities December 31, (In millions) 2021 2020 Trade payables $ 168.3 $ 143.4 Accrued compensation 29.3 41.7 Operating lease liabilities 16.1 15.3 Accrued interest 12.0 12.6 Accrued taxes other than income 10.9 10.5 Current liability for pension and other postretirement employee benefits 5.7 6.2 Accrued discounts and allowances 4.7 4.9 Other 5.4 8.5 $ 252.5 $ 243.1 Included in accounts payable and other accrued liabilities is $11.0 million and $12.1 million related to capital expenditures that had not yet been paid as of December 31, 2021 and as of December 31, 2020.

Debt_2

Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Debt	Debt Long-term debt at the balance sheet dates consisted of: December 31, 2021 December 31, 2020 (In millions) Interest Rate at Principal Unamortized Debt Costs Total Principal Unamortized Debt Costs Total Term loan maturing 2026, variable interest rate 3.1% $ 50.0 $ (0.6) $ 49.4 $ 129.3 $ (1.9) $ 127.4 2014 Notes, maturing 2025, fixed interest rate 5.4% 300.0 (0.9) 299.1 300.0 (1.2) 298.8 2020 Notes, maturing 2028, fixed interest rate 4.8% 275.0 (3.4) 271.6 275.0 (3.9) 271.1 ABL Credit Agreement, variable interest rates 3.5% — — — — — — Finance leases 19.1 — 19.1 20.8 — 20.8 Total debt 644.1 (4.8) 639.2 725.0 (6.9) 718.1 Less: current portion (1.6) — (1.6) (1.7) — (1.7) Net long-term portion $ 642.5 $ (4.8) $ 637.6 $ 723.3 $ (6.9) $ 716.4 Deferred debt costs are amortized over the life of the related debt using a straight line basis which approximates the effective interest method. These costs are a direct deduction from the carrying amount related to the debt liability. If the debt is retired early, the related unamortized deferred debt costs are expensed in the period the debt is retired to debt retirement costs. We amortized deferred debt costs of $1.8 million, $2.1 million and $2.0 million for the years ended December 31, 2021, 2020 and 2019. Included in these amortized amounts are deferred debt costs associated with our current line of credit, which is recorded within "Other current assets" and "Other assets, net" on our Consolidated Balance Sheets. During 2020, in connection with the issuance of the 2020 Notes, we redeemed the 2013 Notes in full. This redemption resulted in a loss on early debt retirement of $3.2 million consisting of $1.2 million related to the write off of unamortized debt costs along with the premium on debt redemption of $2.1 million. The fair value of our debt as of December 31 is included in the following table: (In millions) 2021 2020 Term loan maturing 2026, variable interest rate $ 49.8 $ 129.6 2014 Notes, maturing 2025, fixed interest rate 324.6 325.1 2020 Notes, maturing 2028, fixed interest rate 278.9 285.3 $ 653.3 $ 740.0 TERM LOAN AND ABL CREDIT AGREEMENTS On July 26, 2019, we entered into credit agreements with several lenders and JPMorgan Chase Bank, N.A. (JPMorgan), as administrative agent, which included (a) a $300 million Term Loan Credit Agreement and (b) a $250 million asset based lending (ABL) Credit Agreement (collectively referred to as the Credit Agreements). At closing, the Term Loan Credit Agreement was fully advanced and $58.0 million was drawn under the ABL Credit Agreement, proceeds of which were used to refinance and terminate our: (a) $200 million credit agreement dated October 31, 2016, as amended, with Wells Fargo Bank, National Association (Wells Fargo), as administrative agent, and the lenders party thereto, of which $135.0 million was outstanding and (b) the $200 million credit agreement dated October 31, 2016, as amended, with Northwest Farm Credit Services, PCA, (Farm Credit) as administrative agent, and the lenders party thereto, of which $200.0 million was outstanding (the Prior Credit Agreements); pay fees and expenses in connection with the Credit Agreements; and for working capital purposes. In conjunction with the termination of the Prior Credit Agreements, of which the $200 million credit agreement with Wells Fargo was treated as a debt modification, debt retirement costs consisted of $1.7 million in breakage fees and $1.0 million in unamortized debt issuance costs. Unamortized debt issuance costs of $1.6 million, related to the debt modification, are being amortized over the remaining term of the ABL Credit Agreement. We incurred additional debt issuance costs of $7.3 million, which were allocated and will be amortized over the respective terms of the Credit Agreements. The Credit Agreements contain certain customary representations, warranties, and affirmative and negative covenants of us and our subsidiaries that restrict us and our subsidiaries’ ability to take certain actions, including, incurrence of indebtedness, creation of liens, mergers or consolidations, dispositions of assets, repurchase or redemption of capital stock and certain types of indebtedness, making certain investments, entering into certain transactions with affiliates or changing the nature of our business. At December 31, 2021, we were in compliance with the Credit Agreements. Term Loan Credit Agreement The Term Loan Credit Agreement matures on July 26, 2026. We are required to repay the aggregate outstanding principal amount in quarterly installments in an aggregate amount for each such date equal to the aggregate principal amount of the initial loan amount (as such amount may be adjusted pursuant to the prepayment provisions of the Term Loan Credit Agreement) multiplied by 0.25%. Through December 31, 2021, we have made voluntary principal prepayments of the Term Loan Credit Agreement of $79.3 million, and accordingly we have fulfilled all scheduled payments through maturity. In connection with the voluntary repayments, we recorded early debt retirement costs related to the expensing of deferred debt costs of $1.0 million and $2.6 million for the periods ended December 31, 2021 and December 31, 2020. In addition, we must make mandatory prepayments of principal under the Term Loan Credit Agreement upon the occurrence of certain specified events, including certain asset sales (subject to customary reinvestment rights), debt issuances not permitted under the Term Loan Credit Agreement, and based on a percentage, which may vary from 0% to 50% depending on our secured leverage ratio, of annual excess cash flows in excess of certain threshold amounts, less any voluntary prepayments under the Term Loan Credit Agreement. Any remaining outstanding principal balance under the Term Loan Credit Agreement is repayable on the maturity date. Amounts repaid or prepaid by us with respect to the loans under the Term Loan Credit Agreement cannot be reborrowed. We may add one or more incremental term loan facilities to the Term Loan Credit Agreement, subject to obtaining commitments from any participating lenders and certain other conditions, in an amount not to exceed (1) $100 million, plus (2) the amount of all voluntary prepayments of the Term Loan Credit Agreement (other than prepayments funded with long-term indebtedness), plus (3) an additional amount, so long as after giving effect to the incurrence of such additional amount, our pro forma first lien secured leverage ratio would not exceed 2.00x to 1.00x. At December 31, 2021 our first lien secured ratio was 0.24x. Under the Term Loan Credit Agreement, loans generally may bear interest based on LIBOR or an annual base rate, as applicable, plus, in each case, an applicable margin. When our leverage ratio is (i) less than or equal to 4.25 to 1.00, the margin is 3.00% per annum in the case of LIBOR loans and 2.00% per annum in the case of annual base rate loans and (ii) greater than 4.25 to 1.00, the margin is 3.25% per annum in the case of LIBOR loans and 2.25% per annum in the case of annual base rate loans. At December 31, 2021, our leverage ratio was 3.4x and therefore our applicable margin on LIBOR loans was 3.00%. ABL Credit Agreement The ABL Credit Agreement matures on July 26, 2024 and includes a $250.0 million revolving loan commitment, subject to borrowing base limitations based on a percentage of applicable eligible receivables and eligible inventory. Based upon our Consolidated Balance Sheets as of December 31, 2021, our eligible receivables and inventory supported up to $243.6 million availability under the line of which no borrowings were outstanding and $3.6 million was utilized to issue letters of credit. We may, at our option, prepay any borrowings under the ABL Credit Agreement, in whole or in part, at any time and from time to time without premium or penalty (except in certain circumstances). Borrowings under the ABL Credit Agreement are also subject to mandatory prepayment in certain circumstances, including in the event that borrowings exceed applicable borrowing base limits. We may also increase commitments under the ABL Credit Agreement in an aggregate principal amount of up to $100 million, subject to obtaining commitments from any participating lenders and certain other conditions. Under the ABL Credit Agreement, loans may bear interest based on LIBOR or an annual base rate, as applicable, plus, in each case, an applicable margin that is based on availability, as calculated under the ABL Credit Agreement that may vary from 1.25% per annum to 1.75% per annum in the case of LIBOR loans and 0.25% per annum to 0.75% per annum in the case of annual base rate loans. In addition, a commitment fee based on unused availability is also payable which may vary from 0.25% per annum to 0.375% per annum. The ABL Credit Agreement also contains a financial covenant, which requires us to maintain a consolidated fixed charge coverage ratio of not less than 1.10x to 1.00x, provided that the financial covenant under the ABL Credit Agreement is only applicable when unused availability falls below $25 million. As of December 31, 2021, our fixed charge coverage ratio was approximately 3.56x. Our ability to utilize our ABL Credit Agreement could be limited in the future by our bond indentures which have limitations on liens. 2014 NOTES In 2014, we issued $300 million aggregate principal amount of senior notes (2014 Notes), due February 1, 2025, with an interest rate of 5.375%. The 2014 Notes are guaranteed by all of our direct and indirect domestic subsidiaries, as well as any future direct and indirect domestic subsidiaries that do not constitute an immaterial subsidiary under the indenture governing the 2014 Notes. The 2014 Notes are equal in right of payment with all other existing and future unsecured senior indebtedness and are senior in right of payment to any future subordinated indebtedness. The 2014 Notes are effectively subordinated to all of our existing and future secured indebtedness, including borrowings under our Term Loan and ABL Credit Agreements. The terms of the 2014 Notes limit our ability and the ability of any restricted subsidiaries to incur certain liens, engage in sale and leaseback transactions and consolidate, merge with, or convey, transfer or lease substantially all of our or their assets to another person. We may, on any one or more occasions, redeem all or a part of the 2014 Notes, upon not less than 30 days nor more than 60 days' notice, at a redemption price equal to 100% of the principal amount of the 2014 Notes redeemed, plus the applicable premium as of, and accrued and unpaid interest, to the date of redemption. In addition, we may be required to make an offer to purchase the 2014 Notes upon the sale of certain assets or upon a change of control. 2020 NOTES In 2020, we issued $275 million aggregate principal amount of senior notes (2020 Notes) due August 2028 with an interest rate of 4.75%. The 2020 Notes are unsecured and effectively subordinated to all of the Company’s existing and future secured debt, including borrowings under its existing credit facilities. The 2020 Notes are guaranteed on an unsecured basis by each of the Company’s existing direct and indirect domestic subsidiaries, and will be guaranteed by each of the Company’s future direct and indirect domestic subsidiaries, subject to certain exceptions. If the Company is unable to make payments on the 2020 Notes when they are due, each Guarantor is obligated to make such payments. The Indenture contains covenants that, among other things, limit our ability and the ability of any of our subsidiaries to (i) enter into sale leaseback transactions, (ii) incur liens and (iii) consolidate, merge or sell all or substantially all of our assets. In addition, the Indenture requires, among other things, we provide certain reports to holders of the 2020 Notes. These covenants are subject to a number of exceptions, limitations and qualifications as set forth in the Indenture. We may redeem all or a portion of the 2020 Notes at specified redemption prices plus accrued and unpaid interest. In addition, we may be required to make an offer to purchase the 2020 Notes upon the sale of certain assets and upon a change in control. SCHEDULED PAYMENTS Scheduled principal payments for debt and minimum finance lease obligations at the balance sheet date are as follows: (In millions) December 31, 2021 2022 $ 1.6 2023 1.5 2024 1.5 2025 301.7 2026 51.9 Thereafter 285.9 $ 644.1

Other Operating Charges, net

Other Operating Charges, net	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Other Operating Charges, net	9 Other Operating Charges, net The major components of “Other operating charges, net” in the Consolidated Statements of Operations for the years ended December 31 are reflected in the table below: Years Ended December 31, (In millions) 2021 2020 2019 (Gain) loss on sale or impairment associated with divested assets $ 50.0 $ (1.4) $ — Reorganization and other expenses 8.4 3.4 2.9 Union settlement — 6.6 — Miscellaneous environmental accruals (1.8) 2.5 1.0 Directors' equity-based compensation expense 1.1 2.9 0.3 Other — — 2.1 $ 57.7 $ 14.0 $ 6.3 2021 During 2021, we recorded a $57.7 million net loss in "Other operating charges, net". The components of the net loss include: • expense of $50.0 million associated with mill closure, and subsequent sale of land, building and related equipment, including $37.2 million associated with the impairment of fixed assets and certain inventory and $12.8 million associated with severance and other related closure costs, • expenses of $8.4 million related to reorganization and other expenses including consulting fees associated with our efforts to achieve long-term performance improvements, • gain of $1.8 million associated with the release of asset retirement obligations attributable to divested assets, and • expense of $1.1 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price. 2020 During 2020, we recorded a $14.0 million net loss in "Other operating charges, net". The components of the net loss include: • expenses of $3.4 million related to reorganization expenses (primarily related to corporate expenses), • expenses of $6.6 million associated with union settlement retroactive wage payments ($2.6 million associated with Consumer Products and $4.0 million associated with Paperboard segments), • expense of $2.5 million associated with certain environmental liabilities primarily related to asbestos remediation, • expense of $2.9 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price, and • gain of $1.4 million attributable to the final settlement and escrow release associated with the 2018 divestiture of our Ladysmith Consumer Products facility. 2019 During 2019, we recorded a $6.3 million net loss in "Other operating charges, net". The components of the net loss include: • expenses of $2.9 million related to reorganization expenses (primarily related to corporate expenses), • expenses of $1.0 million associated with certain environmental liabilities primarily related to asbestos remediation, and • expense of $0.3 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price.

Non Operating Income and Expens

Non Operating Income and Expenses	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Other Nonoperating Income and Expense	10 Non-Operating Income (Expense) The major components of “Non-operating expense” in the Consolidated Statements of Operations for the years ended December 31 are reflected in the table below: Years Ended December 31, (In millions) 2021 2020 2019 Interest expense $ (35.5) $ (44.4) $ (49.8) Capitalized interest 0.3 — 5.9 Amortization of debt issuance costs (1.8) (2.1) (2.0) Interest income 0.6 — 1.1 Interest expense, net (36.4) (46.5) (44.9) Debt retirement costs (1.0) (5.9) (2.7) Non-operating pension and other postretirement employee benefits expense (10.4) (7.6) (5.7) Total non-operating expense $ (47.7) $ (59.9) $ (53.3)

Savings, Pension and Other Post

Savings, Pension and Other Postretirement Employee Benefit Plans	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Savings, Pension and Other Postretirement Employee Benefit Plans	Postretirement Benefits Certain of our employees are eligible to participate in defined contribution savings and defined benefit postretirement plans. These include 401(k) savings plans, defined benefit pension plans including company-sponsored and multiemployer plans, and other postretirement employee benefit (OPEB) plans. 401(k) Savings Plans Substantially all of our employees are eligible to participate in 401(k) savings plans, which include a company match component. As of December 31, 2021 our contributions may be up to 7.7% for U.S. salaried and non-union hourly employees, consisting of a match of up to 4.2% of allowable contributions and an automatic employer contribution of 3.5%. Contributions associated with our union employees are based upon negotiated agreements. In 2021, 2020 and 2019, we recorded expense of $16.4 million, $17.3 million, and $15.3 million related to employer contributions to the 401(k) plans. Company-Sponsored Defined Benefit Pension and OPEB Plans A portion of our salaried and hourly employees are covered by company-sponsored noncontributory defined benefit pension plans. We provide retiree health care and life insurance plans, which cover certain salaried and hourly employees. Retiree health care benefits for Medicare eligible participants over the age of 65 are provided through Health Reimbursement Accounts, or HRA's. Benefits for retirees under the age of 65 are provided under our company-sponsored health care plans, which require retiree contributions and contain other cost-sharing features. The retiree life insurance plans are primarily noncontributory. We also maintain a Salaried Supplemental Benefit Plan, an unfunded, non-qualified defined benefit plan intended to provide supplemental retirement benefits to certain executives. Benefits in the Salaried Supplemental Benefit Plan are generally provided to restore benefits or company contributions that are reduced under the Company sponsored qualified plans due to the limits of Section 401(a)(17) or 415 of the Code. The plan is composed of a defined benefit portion and a defined contribution portion. The defined benefit portion of the plan was frozen on December 31, 2011 (the date on which all benefit accruals under the Salaried Retirement Plan were frozen) and as of December 31, 2021, we had two active employees under this portion. We paid benefits of $0.4 million associated with the defined benefit portion of the plan in 2021. The defined contribution portion of this liability totaled $1.4 million and $2.4 million at December 31, 2021 and December 31, 2020. The current and long term portions of the liability is included in “Accrued compensation” and “Other long-term obligations” on our Consolidated Balance Sheets. The defined benefit portion is included in the pension benefit plans tables below. Pension and Other Postretirement Employee Benefit Plans The following table shows the changes in the benefit obligation, plan assets and funded status for 2021 and 2020 for both the pension benefit plans and the other postretirement employee benefit plans. Pension Benefit Plans Other Postretirement (In millions) 2021 2020 2021 2020 Change in projected benefit obligation: Benefit obligation at beginning of year $ 334.9 $ 316.5 $ 74.2 $ 66.4 Service cost 1.8 2.2 0.4 0.1 Interest cost 8.4 10.4 2.0 2.3 Actuarial (gains) losses (14.0) 26.9 0.2 11.0 Benefits paid (21.1) (21.1) (4.9) (5.6) Benefit obligation at end of year 310.1 334.9 71.9 74.2 Changes in plan assets: Fair value of plan assets at beginning of year 335.9 306.6 — — Actual return on plan assets 2.2 50.0 — — Employer contribution 0.4 0.5 4.9 5.6 Benefits paid (21.1) (21.1) (4.9) (5.6) Fair value of plan assets at end of year 317.5 335.9 — — Funded status at end of year $ 7.4 $ 1.0 $ (71.9) $ (74.2) Amounts recognized in Consolidated Balance Sheets: Non-current assets $ 14.8 $ 13.5 $ — $ — Current liabilities (0.4) (0.4) (5.3) (5.8) Non-current liabilities (7.0) (12.0) (66.6) (68.4) Net amount recognized $ 7.4 $ 1.0 $ (71.9) $ (74.2) Amounts recognized in accumulated other comprehensive loss (pre-tax): Net actuarial loss (gain) $ 57.6 $ 73.3 $ 5.8 $ 5.9 The benefit obligation for our pension benefits is the projected benefit obligation based upon credited service as of the measurement date. The December 31, 2021 pension funded status was favorably affected by an increase in the discount rate, partially offset by lower than expected asset returns. The December 31, 2021 OPEB benefit obligation decreased as of December 31, 2021 due to an increase in the discount rate, decrease in claim costs assumptions, and the continued payment of benefits, partially offset by demographic changes. Information as of December 31 for certain pension plans included above with accumulated benefit obligations in excess of plan assets were as follows: (In millions) 2021 2020 Projected benefit obligation $ 173.9 $ 188.7 Accumulated benefit obligation 173.9 188.7 Fair value of plan assets 166.4 176.2 Net Periodic Cost Service cost is the actuarial present value of benefits attributed by the plans’ benefit formula to services rendered by employees during the year. Interest cost represents the increase in the projected benefit obligation, which is a discounted amount, due to the passage of time. The expected return on plan assets reflects the computed amount of current-year earnings from the investment of plan assets using an estimated long-term rate of return. Pension Benefit Plans Other Postretirement (In millions) 2021 2020 2019 2021 2020 2019 Service cost $ 1.8 $ 2.2 $ 2.4 $ 0.4 $ 0.1 $ 0.1 Interest cost 8.4 10.4 12.4 2.0 2.3 2.8 Expected return on plan assets (10.6) (15.0) (16.5) — — — Amortization of actuarial loss (gain) 10.2 9.8 7.3 0.3 — (0.3) Net periodic cost (income) $ 9.9 $ 7.5 $ 5.6 $ 2.7 $ 2.4 $ 2.6 The components of net periodic pension expense other than the Service cost component are included in "Other non-operating expense" in the Consolidated Statements of Operations. During 2021, 2020, and 2019, $2.0 million, $1.9 million and $1.5 million of net periodic pension and OPEB costs were charged to "Cost of sales" and $0.2 million, $0.5 million and $1.0 million were charged to "Selling, general and administrative expenses," in the accompanying Consolidated Statements of Operations. Assumptions: Pension Benefit Plans Other Postretirement 2021 2020 2019 2021 2020 2019 Actuarial assumption used to determine benefit obligation: Discount rate 3.0 % 2.6 % 3.4 % 2.9 % 2.6 % 3.6 % Actuarial assumption used to determine net periodic pension cost: Discount rate 2.6 % 3.4 % 4.4 % 2.6 % 3.6 % 4.6 % Expected return on plan assets 3.8 % 5.5 % 6.0 % — — — The discount rate used in the determination of pension benefit and OPEB obligations and pension expense was determined based on a review of long-term high-grade bonds. The expected return on plan assets assumption is based upon an analysis of historical long-term returns for various investment categories, as measured by appropriate indices and forward looking expectations of returns. These indices are weighted based upon the extent to which plan assets are invested in the particular categories in arriving at our determination of a composite expected return. The assumed health care cost trend rate used to calculate 2021 OPEB cost was 6.3% in 2021, grading to 3.7% over approximately 60 years, for participants whose benefits are not provided through HRAs, and 4.5% in 2021 through 2061, then grading to 3.7% after 2061 for participants whose benefits are provided through HRAs. The health care cost trend rate used to calculate December 31, 2021 OPEB obligations was 5.7% in 2022, grading to 3.7% over approximately 60 years, for participants whose benefits are not provided through HRAs, and 4.5% in 2022 through 2061, then grading to 3.7% after 2061 for participants whose benefits are provided through HRAs. This assumption has a significant effect on the amounts reported. Plan Assets There have been no changes in the methodologies used during 2021 and 2020. Investments in common and collective trust funds are generally valued based on their respective net asset value (or its equivalent), as a practical expedient to estimate fair value due to the absence of a readily determinable fair value. The following tables set forth by level, within the fair value hierarchy, the investments at fair value for our company-sponsored pension benefit plans: December 31, 2021 (In millions) Level 1 Investments measured at net asset value Total Cash and cash equivalents $ 5.8 $ — $ 5.8 Common and collective trust: Collective investment funds — 311.7 311.7 Total investments at fair value $ 5.8 $ 311.7 $ 317.5 December 31, 2020 (In millions) Level 1 Investments measured at net asset value Total Cash and cash equivalents $ 2.4 $ — $ 2.4 Common and collective trusts: Collective investment funds — 333.5 333.5 Total investments at fair value $ 2.4 $ 333.5 $ 335.9 We have formal investment policy guidelines for our company-sponsored plans. These guidelines were set by our Benefits Committee, which is comprised of members of our management and has been assigned its fiduciary authority over management of the plan assets by our Board of Directors. The Committee’s duties include periodically reviewing and modifying those investment policy guidelines as necessary and ensuring that the policy is adhered to and the investment objectives are met. The investment policy includes guidelines for specific categories of equity and fixed income securities. Assets are managed by professional investment managers who are expected to achieve a reasonable rate of return over a market cycle. Long-term performance is a fundamental tenet of the policy. The general policy states that plan assets would be invested to seek the greatest return consistent with the fiduciary character of the pension funds and to allow the plans to meet the need for timely pension benefit payments. The specific investment guidelines stipulate that management is to maintain adequate liquidity for meeting expected benefit payments by reviewing, on a timely basis, contribution and benefit payment levels and appropriately revising long-term and short-term asset allocations. Management takes reasonable and prudent steps to preserve the value of pension fund assets, avoid the risk of large losses and also attempt to preserve the funded status of the plans. Major steps taken to provide this protection included: ▪ Assets are diversified among various asset classes, such as domestic equities, international equities, fixed income and cash. The long-term asset allocation ranges are as follows: Domestic equities 5% - 10% International equities, including emerging markets 5% - 10% Corporate/Government bonds 80% - 90% Liquid reserves —% - 5% Periodically, we review the allocations within these ranges to determine what adjustments should be made based on changing economic and market conditions and specific liquidity requirements. • Assets are managed by professional investment managers and could be invested in separately managed accounts or commingled funds. ▪ Assets are not invested in securities rated below BBB- by S&P or Baa3 by Moody’s. The investment guidelines also require that the individual investment managers are expected to achieve a reasonable rate of return over a market cycle. Emphasis is placed on long-term performance versus short-term market aberrations. Factors considered in determining reasonable rates of return include performance achieved by a diverse cross section of other investment managers, performance of commonly used benchmarks (e.g., Russell 3000 Index, MSCI World ex-U.S. Index, Barclays Capital Long Credit Index), actuarial assumptions for return on plan investments and specific performance guidelines given to individual investment managers. As of December 31, 2021, eight investment options held substantially all of the pension funds. Plan assets were diversified among the various asset classes within the allocation ranges approved by the Benefits Committee. In 2021, we did not make any contributions to our qualified pension plans, and we currently do not anticipate making any cash contributions to those plans in 2022. We do not anticipate funding our OPEB plans in 2022 except to pay benefit costs as incurred during the year by plan participants. Estimated future benefit payments are as follows for the years indicated: (In millions) Pension Other 2022 $ 20.1 $ 5.3 2023 20.1 5.0 2024 20.0 4.8 2025 19.7 4.6 2026 19.4 4.4 2027-2031 92.4 19.9 Multiemployer Defined Benefit Pension Plans Hourly employees at one of our manufacturing facilities participate in multiemployer defined benefit pension plans: the PACE Industry Union-Management Pension Fund (PIUMPF) which is managed by United Steelworkers (USW), Benefits; and the International Association of Machinist & Aerospace Workers National Pension Fund (IAM NPF). We make contributions to these plans, as well as make contributions to a trust fund established to provide retiree medical benefits for a portion of these employees, which is also managed by USW Benefits. The risks of participating in these multiemployer plans are different from single-employer plans in the following respects: • Assets contributed to the multiemployer plan by one employer may be used to provide benefits to employees of other participating employers. • If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers. The number of employers participating in PIUMPF fell from 135 during 2012 to 44 during 2020. We believe that we are now the employer making the largest proportion of total contributions. • Under applicable federal law, any employer contributing to a multiemployer pension plan that completely ceases participating in the plan while it is underfunded is subject to an assessment of such employer's allocable share of the aggregate unfunded vested benefits of the plan, except when that plan is in "critical" or "critical and declining" status. In certain circumstances, an employer can also be assessed a statutory withdrawal liability for a partial withdrawal from a multiemployer pension plan. Based on information available to us as of December 31, 2021, as well as information provided by PIUMPF and IAM NPF and reviewed by our actuarial consultant, we estimate the aggregate pre-tax liability that we would have incurred if we had completely withdrawn from PIUMPF and IAM NPF in 2021 would have been in excess of $90 million. However, the exact amount of potential exposure could be higher or lower than the estimate, depending on, among other things, the nature and timing of any triggering events and the funded status of PIUMPF and IAM NPF at that time. A withdrawal liability is recorded for accounting purposes when withdrawal is probable and the amount of the withdrawal obligation is reasonably estimable. Our participation in these plans for the annual period ended December 31, 2021, is outlined in the table below. The “EIN" and "Plan Number” columns provide the Employee Identification Number, or EIN, and the three-digit plan number. The most recent Pension Protection Act, or PPA, zone status available in 2021 and 2020 is for a plan’s year-end as of December 31, 2021 and 2020. The zone status is set under the provisions of the Multiemployer Pension Plan Reform Act of 2014 and is based on information we received from the plans and is certified by each plan's actuary. Among other factors, plans in the red zone are generally less than 65 percent funded, plans in the yellow zone are less than 80 percent but more than 65 percent funded, and plans in the green zone are at least 80 percent funded. The “FIP/RP Status Pending/Implemented” column indicates plans for which a Funding Improvement Plan, or FIP, or a Rehabilitation Plan, or RP, is either pending or has been implemented as required by the PPA as a measure to correct its underfunded status. The last column lists the expiration date(s) of the collective-bargaining agreement(s) to which the plans are subject. In 2021, the contribution rate for the IAM NPF plan was $4.00 per hour. In accordance with the Rehabilitation Plan, we began contributing an additional contribution in June 2019. This additional contribution started at 2.5% and will increase 2.5% each year while the Rehabilitation Plan is in effect. Starting June of 2021 our additional contribution increased to 7.75% of our contractual contribution rate. This additional contribution is scheduled to continue and compound each year while the rehabilitation plan remains in effect. In 2021, the contribution rate for PIUMPF was $2.79 per hour. Contribution rates for IAM NPF and PIUMPF were increased as part of the RP in lieu of the legally required surcharge, paid by the employers, to assist the fund’s financial status. We were listed in PIUMPF’s Form 5500 report as providing more than five percent of the total contributions for the years 2020 and 2019. At the date of issuance of our consolidated financial statements, Form 5500 reports for these plans were not available for the 2021 plan year. Pension EIN Plan PPA Zone Status FIP/RP Status Pending/ Contributions Surcharge Expiration Date of Collective Bargaining Agreement 2021 2020 2021 2020 2019 IAM NPF 51-6031295 002 Red Red Implemented $ 0.3 $ 0.3 $ 0.3 No 5/31/2023 PIUMPF 11-6166763 001 Red Red Implemented 5.4 5.5 5.3 No 8/31/2025 Total Contributions: $ 5.7 $ 5.7 $ 5.6

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Accumulated other comprehensive loss at the balance sheet dates is comprised of the following: (In millions) Pension Plan Adjustments Other Postretirement Employee Benefit Plan Adjustments Total Balance at December 31, 2019 $ (67.8) $ 8.3 $ (59.5) Other comprehensive income (loss) before reclassifications 6.0 (8.1) (2.1) Amounts reclassified from accumulated other comprehensive loss 7.3 — 7.3 Other comprehensive income (loss), net of tax 13.3 (8.1) 5.2 Balance at December 31, 2020 (54.5) 0.2 (54.3) Other comprehensive income (loss) before reclassifications 4.1 (0.1) 4.0 Amounts reclassified from accumulated other comprehensive loss 7.6 0.2 7.8 Other comprehensive income, net of tax 11.7 0.1 11.7 Balance at December 31, 2021 $ (42.8) $ 0.3 $ (42.6)

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings (loss) per share are based on the weighted average number of shares of common stock outstanding. Diluted earnings per share are based upon the weighted average number of shares of common stock outstanding plus all potentially dilutive securities that were assumed to be converted into common shares at the beginning of the period under the treasury stock method. This method requires that the effect of potentially dilutive common stock equivalents be excluded from the calculation of diluted earnings per share for the periods in which net losses are reported because the effect is anti-dilutive. The following table reconciles the number of common shares used in calculating the basic and diluted net earnings per share: December 31, (In thousands - except per share data) 2021 2020 2019 Basic average common shares outstanding 1 16,767 16,569 16,533 Incremental shares due to: Stock-based awards — 141 — Performance Shares — 14 — Diluted average common shares outstanding 16,767 16,724 16,533 Basic net income (loss) per common share $ (1.67) $ 4.65 $ (0.34) Diluted net income (loss) per common share $ (1.67) $ 4.61 $ (0.34) Anti-dilutive shares excluded from the calculation were 0.7 million, 0.5 million and 1.0 million for the years ended December 31, 2021, 2020 and 2019. 1 Basic average common shares outstanding include restricted stock awards that are fully vested, but are deferred for future issuance. See Note 14 "Stockholders' Equity" for further discussion.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Stockholders' Equity	PREFERRED STOCK We are authorized to issue up to 5,000,000 shares of preferred stock at $0.0001 par value. At December 31, 2021, no shares of preferred stock have been issued. COMMON STOCK PLANS We have stock-based compensation plans under which stock options and restricted units are granted. At December 31, 2021, approximately 1.1 million shares were available for future issuance under our stock incentive plan. For The Years Ended December 31, (In millions) 2021 2020 2019 Total equity-based compensation expense $ 9.1 $ 10.5 $ 4.1 Income tax benefit related to equity-based compensation 2.3 2.7 1.0 Impact on cash flow due to taxes paid related to net share settlement of equity awards 1.7 0.7 0.4 Intrinsic value of options exercised, equity-based liabilities paid, and the fair value of restricted stock units vested 3.7 2.9 2.1 We recognize the compensation costs on a straight-line basis over the requisite service period of the award, which is generally the vesting term of one Restricted Stock Units (Time and Performance Vesting) We grant restricted awards to certain employees. The awards can either be time vested or vested based upon the attainment of certain performance metrics over a certain time period. Performance conditions generally are tied to attainment of certain financial targets such as return on invested capital, free cash flow or other similar measures. Awards granted under our stock incentive plan generally have a performance or vesting period of three years from the date of grant. These awards are eligible to receive dividend equivalent shares.The market value of these grants approximates the fair value. For awards based upon the achievement of performance goals, the award could range from 0% to 200%. A summary of the status of outstanding restricted stock units as of December 31, 2021, and changes during the year, is presented below: Time Vested Performance-based Shares Weighted Shares Weighted Average Grant Date Fair Value Restricted stock units outstanding at December 31, 2020 425,252 $ 24.52 194,345 $ 27.76 Deferred shares outstanding at December 31, 2020 33,663 7.31 — Total units outstanding at December 31, 2020 458,915 23.26 194,345 $ 27.76 Granted 180,521 35.70 58,738 39.79 Vested (107,501) 23.70 (6,380) 37.45 Forfeited / Canceled 1 (39,625) 33.64 (3,015) 27.11 Deferred shares settled (33,663) 7.31 — Restricted stock units outstanding at December 31, 2021 458,647 27.12 243,688 28.51 1 Forfeited / Canceled performance-based restricted stock units include both shares forfeited due to employees failure to meet requisite service period and also due to failure to meet required performance measures. The weighted average grant date fair value for restricted stock units granted during the years ended December 31, 2021 and 2020 was $35.70 and $23.46. As of December 31, 2021, there was $10.5 million of total unrecognized compensation cost related to outstanding restricted stock unit awards. Restricted stock unit cost is expected to be recognized over a weighted average period of 1.9 years for time vested awards and 1.5 years for performance-based awards. Stock Options Prior to January 1, 2019, we granted options to certain employees. The options were granted at market price at the date of grant and the fair value of the options was estimated using the Black-Scholes option-pricing model (dividend yield ignored). As of December 31, 2021 all outstanding options are fully vested with a contractual term of ten years after the date of grant. A summary of the status of outstanding stock option awards as of December 31, 2021, and changes during the year, is presented below: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Aggregate Intrinsic Value Outstanding options at December 31, 2020 353,446 $ 49.13 5.2 $ — Exercised (17,720) 38.31 Expired (13,180) 51.30 Outstanding options at December 31, 2021 322,546 $ 49.64 4.3 $ — Outstanding and exercisable options at December 31, 2021 322,546 $ 49.64 4.3 $ — Director Awards Our Board of Directors are eligible to receive awards of phantom common stock units. Annually our outside directors receive phantom stock units as part of their compensation which vest ratably over a one-year period and accrue dividend equivalent shares for any dividends paid to shareholders of our common stock. The vested portion of a director’s phantom share balance is converted to cash using a twenty-day average price of common stock and paid to the director upon their separation from service as a director. Due to its cash-settlement feature, we account for these awards as liabilities and recognize the equity-based compensation expense or income at the end of each reporting period based on the portion of the award that is vested and the increase or decrease in the value of our common stock. We recorded director equity-based compensation expense for the years ended December 31, 2021, 2020 and 2019 of $1.1 million, $2.9 million and $0.3 million included in “Other operating charges, net” in the Consolidated Statements of Operations. At December 31, 2021, the liability amounts associated with director equity-based compensation included in "Other long-term obligations" and "Accounts payable and accrued liabilities" on our Consolidated Balance Sheets was $4.3 million and $2.3 million. At December 31, 2020, the liability amounts associated with director equity-based compensation included in "Other long-term obligations" on our Consolidated Balance Sheets was $5.2 million.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies SELF INSURANCE We are primarily self-insured for workers’ compensation and employee health care liability costs. Self-insurance liabilities for workers’ compensation are determined based upon a valuation performed by an actuarial firm. The estimate of future workers’ compensation liabilities incorporates loss development and an estimate associated with incurred but not yet reported claims. These claims are discounted. Self-insurance liabilities for employee health costs are determined actuarially based upon claims filed and estimated claims incurred but not yet reported. These claims are not discounted. PURCHASE OBLIGATIONS To help mitigate our exposure to market risk for changes in utility commodity pricing, we use firm price contracts to supply a portion of the natural gas and electricity requirements of our manufacturing facilities, which were reported through "Cost of sales" on our Consolidated Statements of Operations. As of December 31, 2021, these contracts cover approximately 9% of our expected average monthly natural gas and electricity needs at the respective manufacturing facilities through 2022. These contracts qualify for treatment as "normal purchases or normal sales" under authoritative guidance and required no mark-to-market adjustment.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Segment Information	Segment Information Our businesses are organized into two reportable operating segments: Pulp and Paperboard and Consumer Products. The reporting segments follow the same accounting policies used for our Consolidated Financial Statements. We evaluate the performance of our business segments based upon net sales and operating income (loss). Certain amounts have been reclassified from the prior year presentation to reflect the realignment of Clearwater Paper’s baled pulp sales to record inter-segment sales at market price and the realignment of outside pulp sales to the producing segment. Pulp and Paperboard Our Pulp and Paperboard segment manufactures and markets solid bleached sulfate paperboard for the high-end segment of the packaging industry as well as offers custom sheeting, slitting and cutting of paperboard. Consumer Products Our Consumer Products segment manufactures and sells a complete line of at-home tissue products, or retail products, and minor amounts of parent rolls. The table below presents information about our reportable segments: (In millions) 2021 2020 2019 Segment net sales: Pulp and Paperboard $ 946.0 $ 877.1 $ 885.4 Consumer Products 835.0 1,018.5 902.5 Eliminations (8.4) (27.0) (26.3) Total segment net sales $ 1,772.6 $ 1,868.6 $ 1,761.5 Operating income (loss): Pulp and Paperboard $ 125.7 $ 124.5 $ 114.6 Consumer Products 4.0 110.6 (5.9) Corporate and eliminations (60.1) (63.0) (57.0) Other operating charges, net (57.7) (14.0) (6.3) Income from operations $ 12.0 $ 158.1 $ 45.4 Depreciation and amortization: Pulp and Paperboard $ 35.7 $ 36.7 $ 39.4 Consumer Products 64.9 68.5 69.7 Corporate 4.4 5.8 6.5 Total depreciation and amortization $ 105.0 $ 111.0 $ 115.6 Assets: Pulp and Paperboard $ 621.1 $ 614.9 $ 652.2 Consumer Products 986.2 1,079.9 1,147.1 Corporate 82.8 105.6 78.4 Total assets $ 1,690.1 $ 1,800.4 $ 1,877.7 Capital expenditures: Pulp and Paperboard $ 20.7 $ 20.4 $ 16.7 Consumer Products 17.3 17.4 114.9 38.0 37.8 131.6 Corporate 0.4 1.9 8.5 Total capital expenditures $ 38.4 $ 39.6 $ 140.1 For the year-ended December 31, 2021, one customer was 11% of our total consolidated sales and for the year ended December 31, 2020, one customer was 14% of our total consolidated sales. For the year ended December 31, 2019 there were no customers with more than 10% of our total consolidated sales. Our manufacturing facilities and all other assets are located within the continental United States. We sell and ship our products to customers in several foreign countries. Net sales, classified by the major geographic areas in which our customers are located and by major products, were as follows: (In millions) 2021 2020 2019 Primary geographical markets: United States $ 1,670.2 $ 1,766.2 $ 1,686.2 Other Countries 102.4 102.4 75.3 Total Net Sales $ 1,772.6 $ 1,868.6 $ 1,761.5 Major products: Paperboard $ 894.9 $ 828.0 $ 846.3 Retail tissue 797.9 975.7 845.6 Away-from-home tissue and parent rolls 36.7 41.1 56.5 Pulp 34.8 41.4 31.2 Other 16.6 9.2 8.4 Eliminations (8.4) (27.0) (26.3) Total net sales $ 1,772.6 $ 1,868.6 $ 1,761.5

Summary of Significant Accoutin

Summary of Significant Accouting Policies Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Use of Estimates, Policy	USE OF ESTIMATES The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of net sales and expenses during the reporting period. Actual results could differ from those estimates.
Consolidation, Policy	PRINCIPLES OF CONSOLIDATIONThese consolidated financial statements include the financial condition and results of operations of Clearwater Paper Corporation and its wholly-owned subsidiaries. All intercompany transactions and balances between operations within the Company have been eliminated.
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy	CASH, CASH EQUIVALENTS AND RESTRICTED CASH We consider all highly liquid instruments with maturities of three months or less to be cash equivalents. Cash that is held by a third party and has restrictions on its availability to us is classified as restricted cash. The following table provides a reconciliation of cash and cash equivalents and restricted cash reported on the Consolidated Balance Sheets to the sum of those same amounts shown in our Consolidated Statements of Cash Flows.
Accounts Receivable [Policy Text Block]	ACCOUNTS RECEIVABLE Receivables consist of: December 31, (In millions) 2021 2020 Trade accounts receivable $ 154.1 $ 139.0 Allowance for current expected credit losses (1.4) (1.6) Unbilled receivables 7.2 5.1 Taxes receivable 6.1 16.0 Other 1.4 2.1 $ 167.4 $ 160.6
Inventory, Policy [Policy Text Block]	INVENTORIES Our inventories are stated at the lower of net realizable value or current cost using the average cost method. December 31, (In millions) 2021 2020 Logs, chips and sawdust $ 13.7 $ 17.2 Pulp 15.9 11.5 Paperboard and tissue products 148.0 137.0 Materials and supplies 100.1 97.7 $ 277.7 $ 263.3
Property, Plant and Equipment, Policy	PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment are stated at cost, including assets acquired under finance lease obligations, and any interest costs capitalized, less accumulated depreciation. Depreciation of buildings, equipment and other depreciable assets is determined using the straight-line method. Estimated useful lives generally range from 10 to 40 years for land improvements, 10 to 40 years for buildings and improvements and 2 to 25 years for machinery and equipment (includes office and other equipment). December 31, (In millions) 2021 2020 Land and land improvements $ 109.1 $ 111.5 Buildings and improvements 452.5 480.1 Machinery and equipment 2,377.5 2,459.2 Construction in progress 22.4 21.8 2,961.5 3,072.6 Less accumulated depreciation and amortization (1,879.7) (1,881.1) Property, plant and equipment, net $ 1,081.8 $ 1,191.5 At December 31, 2021 and 2020, included within property, plant and equipment, net were finance leases of $27.7 million and $26.7 million and associated accumulated depreciation amounts of $15.2 million and $12.7 million. Depreciation expense totaled $102.0 million, $107.8 million and $108.4 million for the years ended December 31, 2021, 2020 and 2019. Capitalized interest is charged to and amortized over the lives of the related assets. For the years ended December 31, 2021, 2020 and 2019 capitalized interest expense was $0.3 million, zero, and $5.9 million. PLANNED MAINTENANCE We recognize the cost of repair and maintenance activities in the period in which the activity is performed or goods are received under the direct expense method. We perform planned maintenance activities at our facilities periodically and associated expenses are included in cost of sales.
Lessee, Leases [Policy Text Block]	LEASES Operating lease right-of-use (ROU) assets and liabilities are recognized at the commencement date of a lease based on the present value of lease payments over the lease term. Our leases may include options to extend or terminate the lease. These options to extend are included in the lease term when it is reasonably certain that we will exercise that option. Some leases have variable payments, however, because they are not based on an index or rate, they are not included in the ROU assets and liabilities. Variable payments for real estate leases primarily relate to common area maintenance, insurance, taxes and utilities. Variable payments for equipment, vehicles, and leases within supply agreements primarily relate to usage, repairs and maintenance. As the implicit rate is not readily determinable for most of our leases, we apply a portfolio approach using an estimated incremental borrowing rate to determine the initial present value of lease payments over the lease terms on a collateralized basis over a similar term, which is based on market and company specific information. We use our unsecured borrowing rate and risk-adjust that rate to approximate a collateralized rate. Leases having a lease term of twelve months or less are not recorded on the balance sheet and the related lease expense is recognized on a straight-line basis over the term of the lease. In addition, the Company has applied the practical expedient to account for the lease and non-lease components as a single lease component for all of the Company's leases. See Note 4, "Leases" for further information.
Pension and Other Postretirement Plans, Policy	RETIREMENT PLANS AND POSTRETIREMENT BENEFITS We are required to use actuarial methods and assumptions in the valuation of defined benefit obligations and other postretirement obligations and the determination of expense. Differences between actual and expected results or changes in the values of the obligations and plan assets are not recognized in earnings as they occur but, rather, systematically and gradually over subsequent periods. See Note 11, "Retirement Plans and Postretirement Benefits" for further information.
Income Tax, Policy	INCOME TAXES Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The determination of our provision for income taxes requires significant judgment, the use of estimates, and the interpretation and application of complex tax laws. Significant judgment is required in assessing the timing and amounts of deductible and taxable items and the probability of sustaining uncertain tax positions. The benefits of uncertain tax positions are recorded in our consolidated financial statements only after determining a more-likely-than-not probability that the uncertain tax positions will withstand challenge, if any, from tax authorities. When facts and circumstances change, we reassess these probabilities and record any changes in the consolidated financial statements as appropriate. See Note 6, "Income Taxes" for further information.
Revenue	REVENUE RECOGNITION We enter into contracts that can include various combinations of tissue and paperboard products, which are generally distinct and accounted for as separate performance obligations. Generally, revenue is recognized at a point in time upon transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. Transfer of control typically occurs when the title and risk of loss passes to the customer. Shipping terms generally indicate when title and the risk of loss have passed, usually this is upon receipt at our customer's destination. We have elected to treat shipping and handling costs as a fulfillment cost. We typically expense incremental direct costs of obtaining a contract (sales commissions) when incurred because the amortization period is generally 12 months or less. We maintain consignment inventory at a limited number of customer locations. For consigned inventory, we recognize revenue upon transfer of control, which is often in advance of invoicing the customer. These amounts are classified as unbilled receivables in the above detail of accounts receivable. We provide for trade promotions, customer cash discounts and other deductions, which are considered variable consideration and recorded as a reduction of net sales. Returns and credits are estimated at contract inception and updated at the end of each reporting period as additional information becomes available. Revenue, net of returns and credits, is only recognized to the extent that it is probable that a significant reversal of any incremental revenue will not occur. Judgment associated with forecasted volumes is required to determine the most probable amount of variable consideration to apply as a reduction to net sales. As of December 31, 2021 and 2020, we had $9.2 million and $10.5 million accrued as customer rebates. Revenue is recognized net of any taxes collected from customers.
Other Operating Charges and Credits, Policy [Policy Text Block]	OTHER OPERATING CHARGES, NET We classify significant amounts unrelated to ongoing core operating activities as “Other operating charges, net” in the Consolidated Statements of Operations. Such items include, but are not limited to, amounts related to facility closures and related gain (loss) on sale and impairment, restructuring charges (including severance charges), charges to establish and maintain litigation or environmental reserves, gains or losses from settlements with governmental or other organizations and cash settled equity-based compensation to our directors. Due to the nature of these items, amounts in the statement of operations can fluctuate from year to year. The determination of which items are considered significant and unrelated to core operations is based upon management’s judgment. See Note 9, "Other Operating Charges, net" for a discussion of specific amounts in 2021, 2020 and 2019.
Financing Receivable [Policy Text Block]	ACCOUNTS RECEIVABLE ARRANGEMENT During 2019, we entered into an uncommitted supply-chain financing program with a global financial institution under which a specific customer's trade accounts receivable may be acquired, without recourse, by the institution at a discounted rate. Available capacity under this program is dependent on the level of our trade accounts receivable with this customer and the financial institution’s willingness to purchase such receivables. We have no servicing responsibilities under this agreement. This agreement allows us to obtain payment more quickly than under the contractual terms of sale to this customer.
Asset Retirement Obligation and Environmental Cost	ENVIRONMENTAL AND ASSET RETIREMENT OBLIGATIONS We estimate our environmental and asset retirement obligations based on various assumptions and judgments, the specific nature of which varies in light of the particular facts and circumstances surrounding each liability. These estimates typically reflect assumptions and judgments as to the probable nature, magnitude and timing of required investigation, remediation and monitoring activities and the probable cost of these activities. We have accrued only for specific costs related to environmental matters that we have determined are probable and for which an amount can be reasonably estimated. For asset retirement obligations, the liability is accreted to its settlement value and, where appropriate, the capitalized cost is depreciated over the useful life of the related asset. Upon settlement of the liability, we recognize a gain or loss for any difference between the settlement amount and the liability recorded. Our asset retirement obligation is included in "Other long-term obligations" in the Consolidated Balance Sheets. Our asset retirement obligation reflects the estimated present value of our obligations for capping, closure and post closure cost with respect to landfills, asbestos remediation and other ongoing environmental monitoring. The following table represents the activity associated with our asset retirement obligations. For The Years Ended December 31, (In millions) 2021 2020 Beginning balance $ 3.8 $ 1.1 Accretion expense 0.1 0.1 Adjusted to expense during the year — 0.1 Adjusted to other operating charges, net (1.8) 2.5 Payments made (0.1) — Ending balance $ 2.0 $ 3.8

Accounting Policies (Tables)

Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Schedule of Cash and Cash Equivalents	CASH, CASH EQUIVALENTS AND RESTRICTED CASH We consider all highly liquid instruments with maturities of three months or less to be cash equivalents. Cash that is held by a third party and has restrictions on its availability to us is classified as restricted cash. The following table provides a reconciliation of cash and cash equivalents and restricted cash reported on the Consolidated Balance Sheets to the sum of those same amounts shown in our Consolidated Statements of Cash Flows. December 31, (In millions) 2021 2020 2019 Cash and cash equivalents $ 25.2 $ 35.9 $ 20.0 Restricted cash — — 1.4 Restricted cash included in Other assets, net 1.1 1.1 1.0 Total cash, cash equivalents and restricted cash $ 26.2 $ 36.9 $ 22.4
Schedule of Accounts, Notes, Loans and Financing Receivable	ACCOUNTS RECEIVABLE Receivables consist of: December 31, (In millions) 2021 2020 Trade accounts receivable $ 154.1 $ 139.0 Allowance for current expected credit losses (1.4) (1.6) Unbilled receivables 7.2 5.1 Taxes receivable 6.1 16.0 Other 1.4 2.1 $ 167.4 $ 160.6
Schedule of Inventory, Current	INVENTORIES Our inventories are stated at the lower of net realizable value or current cost using the average cost method. December 31, (In millions) 2021 2020 Logs, chips and sawdust $ 13.7 $ 17.2 Pulp 15.9 11.5 Paperboard and tissue products 148.0 137.0 Materials and supplies 100.1 97.7 $ 277.7 $ 263.3
Property, Plant and Equipment	PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment are stated at cost, including assets acquired under finance lease obligations, and any interest costs capitalized, less accumulated depreciation. Depreciation of buildings, equipment and other depreciable assets is determined using the straight-line method. Estimated useful lives generally range from 10 to 40 years for land improvements, 10 to 40 years for buildings and improvements and 2 to 25 years for machinery and equipment (includes office and other equipment). December 31, (In millions) 2021 2020 Land and land improvements $ 109.1 $ 111.5 Buildings and improvements 452.5 480.1 Machinery and equipment 2,377.5 2,459.2 Construction in progress 22.4 21.8 2,961.5 3,072.6 Less accumulated depreciation and amortization (1,879.7) (1,881.1) Property, plant and equipment, net $ 1,081.8 $ 1,191.5
Schedule of Asset Retirement Obligations	The following table represents the activity associated with our asset retirement obligations. For The Years Ended December 31, (In millions) 2021 2020 Beginning balance $ 3.8 $ 1.1 Accretion expense 0.1 0.1 Adjusted to expense during the year — 0.1 Adjusted to other operating charges, net (1.8) 2.5 Payments made (0.1) — Ending balance $ 2.0 $ 3.8

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Lease, Cost [Table Text Block]	LEASE EXPENSE For The Years Ended December 31, (In millions) 2021 2020 2019 Operating lease costs $ 16.6 $ 15.9 $ 15.0 Finance lease costs: Amortization of ROU assets 1.8 1.8 1.7 Interest on lease liabilities 1.7 1.8 1.9 Total finance lease costs 3.5 3.5 3.6 Variable lease costs 1.7 1.6 1.2 Total lease costs $ 21.8 $ 21.0 $ 19.8
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]	SUPPLEMENTAL BALANCE SHEET INFORMATION December 31, (In millions) Classification 2021 2020 Lease ROU assets Operating lease assets Other assets, net $ 53.6 $ 63.5 Finance lease assets, net Property, plant and equipment, net 12.5 14.0 Total lease ROU assets $ 66.1 $ 77.5 Lease Liabilities Current operating lease liabilities Accounts payable and accrued liabilities $ 16.1 $ 15.3 Current finance lease liabilities Current portion of long-term debt $ 1.6 $ 1.7 Non-current operating lease liabilities Deferred tax liabilities and other long-term obligations $ 42.7 $ 54.3 Non-current finance lease liabilities Long-term debt $ 17.5 $ 19.1 Total operating lease liabilities $ 58.8 $ 69.5 Total finance lease liabilities 19.1 20.8 Total lease liabilities $ 77.9 $ 90.3
Lease term and discount rate [Table Text Block]	LEASE TERM AND DISCOUNT RATE December 31, 2021 2020 Weighted average remaining lease term (years) Operating leases 5.3 5.8 Finance leases 9.0 9.8 Weighted average discount rate Operating leases 4.8 % 4.9 % Finance leases 8.4 % 8.4 %
Lease, Supplemental cash flow information [Table Text Block]	SUPPLEMENTAL CASH FLOW INFORMATION For The Years Ended December 31, (In millions) 2021 2020 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 18.8 $ 17.9 $ 16.6 Operating cash flows from finance leases 1.6 1.8 1.9 Financing cash flows from finance leases 1.7 1.6 1.3 Non-cash amounts for lease liabilities arising from obtaining ROU assets: Operating leases $ 5.0 $ 4.4 $ 2.5 Finance leases — 0.3 0.5
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	December 31, 2021, our future maturities of lease liabilities were as follows: (In millions) Operating Finance 2022 $ 18.5 $ 3.2 2023 11.7 2.9 2024 8.4 2.8 2025 7.8 2.8 2026 7.8 2.9 Thereafter 12.7 13.0 Total lease payments 66.9 27.6 Less imputed interest (8.1) (8.5) Present value of lease liabilities $ 58.8 $ 19.1
Finance Lease, Liability, Fiscal Year Maturity [Table Text Block]	December 31, 2021, our future maturities of lease liabilities were as follows: (In millions) Operating Finance 2022 $ 18.5 $ 3.2 2023 11.7 2.9 2024 8.4 2.8 2025 7.8 2.8 2026 7.8 2.9 Thereafter 12.7 13.0 Total lease payments 66.9 27.6 Less imputed interest (8.1) (8.5) Present value of lease liabilities $ 58.8 $ 19.1

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Intangible Assets and Goodwill [Table Text Block]	Changes in the carrying amounts of goodwill and intangible assets allocated to each segment were as follows: Consumer Products Pulp and Paperboard Total (In millions) Intangibles Goodwill Intangibles Balance as of December 31, 2019 $ 0.3 $ 35.1 $ 16.6 $ 52.0 Amortization (0.3) — (2.9) (3.2) Balance as of December 31, 2020 — 35.1 13.7 48.8 Amortization — — (2.9) (2.9) Balance as of December 31, 2021 $ — $ 35.1 $ 10.8 $ 45.9
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	As of December 31, 2021, estimated future amortization expense related to intangible assets is as follows: (In millions) Amount 2022 $ 2.2 2023 2.1 2024 2.1 2025 2.1 2026 2.1 Total $ 10.8

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Provision (Benefit) for Income Taxes	The components of income tax provision (benefit) is comprised of the following: For The Years Ended December 31, (In millions) 2021 2020 2019 Current Federal $ 1.3 $ (17.4) $ (2.1) State 0.7 1.8 0.1 Total current 2.0 (15.6) (2.0) Deferred Federal (8.8) 32.5 (0.6) State (0.9) 4.2 0.3 Total deferred (9.7) 36.7 (0.3) Income tax provision (benefit) $ (7.7) $ 21.1 $ (2.3)
Income Tax Reconciliation	The income tax provision (benefit) differs from the amount computed by applying the statutory federal income tax rate to income (loss) before income taxes due to the following: For The Years Ended December 31, (In millions) 2021 % 2020 % 2019 % Tax at the statutory rate $ (7.5) 21.0 % $ 20.6 21.0 % $ (1.7) 21.0 % State and local taxes, net of federal income tax impact 0.2 (0.5) % 5.6 5.7 % (0.9) 11.4 % Adjustment for state deferred tax rate (0.4) 1.2 % (0.3) (0.3) % (1.2) 15.5 % CARES Act net operating loss carryback — — % (7.0) (7.1) % — — % Federal credits 0.1 (0.2) % (1.3) (1.3) % (2.3) 29.4 % Uncertain tax positions (0.2) 0.5 % 2.2 2.2 % 0.7 (9.4) % Stock compensation (0.5) 1.4 % 1.2 1.2 % 0.6 (7.0) % Non-deductible expenses 0.7 (2.0) % 1.1 1.1 % 0.4 (5.2) % Change in valuation allowances — 0.1 % 0.1 0.1 % 2.3 (29.2) % Other, net (0.1) 0.2 % (1.1) (1.1) % (0.2) 2.9 % Income tax provision (benefit) $ (7.7) 21.6 % $ 21.1 21.5 % $ (2.3) 29.4 %
Tax Effects of Significant Temporary Differences Creating Deferred Tax Assets and Liabilities	The tax effects of significant temporary differences creating deferred tax assets and liabilities at December 31 were: (In millions) 2021 2020 Deferred tax assets: Employee benefits $ 3.4 $ 3.4 Postretirement employee benefits 18.5 19.2 Incentive compensation 6.6 5.2 Inventories 0.2 0.6 Pensions — 0.2 Federal and state credit carryforwards 13.5 16.2 Federal and state net operating losses 4.1 3.9 Operating leases 15.2 18.0 Other — 1.8 Total deferred tax assets 61.5 68.5 Valuation allowance (5.4) (5.4) Deferred tax assets, net of valuation allowance 56.1 63.1 Deferred tax liabilities: Property, plant and equipment, net (185.5) (199.7) Operating leases (13.8) (16.4) Pensions (1.5) — Intangible assets, net (2.3) (3.0) Other (0.6) — Total deferred tax liabilities (203.7) (219.1) Net deferred tax liabilities $ (147.6) $ (156.0) Net deferred tax assets (liabilities) consist of: December 31, (In millions) 2021 2020 Non-current deferred tax assets 1 $ 2.2 $ 2.1 Non-current deferred tax liabilities (149.9) (158.1) Net deferred tax liabilities $ (147.6) $ (156.0) 1 Included in "Other assets, net" on our accompanying December 31, 2021 and 2020 Consolidated Balance Sheets.
Roll Forward of Unrecognized Tax Benefits and Associated Interest and Penalties Included in the Accrued Taxes line item in non-current liabilities	(In millions) Gross Interest Total Gross Balance at December 31, 2019 $ 3.7 $ 0.4 $ 4.1 Change in prior year tax positions 2.0 (0.1) 1.9 Change in current year tax positions 0.4 — 0.4 Balance at December 31, 2020 6.1 0.3 6.4 Change in prior year tax positions (0.7) — (0.7) Change in current year tax positions 0.2 — 0.2 Balance at December 31, 2021 $ 5.6 $ 0.3 $ 5.9

Accounts Payable and Accrued _2

Accounts Payable and Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2021
Accounts Payable and Accrued Liabilities, Current [Abstract]
Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities December 31, (In millions) 2021 2020 Trade payables $ 168.3 $ 143.4 Accrued compensation 29.3 41.7 Operating lease liabilities 16.1 15.3 Accrued interest 12.0 12.6 Accrued taxes other than income 10.9 10.5 Current liability for pension and other postretirement employee benefits 5.7 6.2 Accrued discounts and allowances 4.7 4.9 Other 5.4 8.5 $ 252.5 $ 243.1

Other Operating Charges, net (T

Other Operating Charges, net (Tables)	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]	The major components of “Other operating charges, net” in the Consolidated Statements of Operations for the years ended December 31 are reflected in the table below: Years Ended December 31, (In millions) 2021 2020 2019 (Gain) loss on sale or impairment associated with divested assets $ 50.0 $ (1.4) $ — Reorganization and other expenses 8.4 3.4 2.9 Union settlement — 6.6 — Miscellaneous environmental accruals (1.8) 2.5 1.0 Directors' equity-based compensation expense 1.1 2.9 0.3 Other — — 2.1 $ 57.7 $ 14.0 $ 6.3

Non Operating Income and Expe_2

Non Operating Income and Expenses (Tables)	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Schedule of Other Nonoperating Income (Expense)	The major components of “Non-operating expense” in the Consolidated Statements of Operations for the years ended December 31 are reflected in the table below: Years Ended December 31, (In millions) 2021 2020 2019 Interest expense $ (35.5) $ (44.4) $ (49.8) Capitalized interest 0.3 — 5.9 Amortization of debt issuance costs (1.8) (2.1) (2.0) Interest income 0.6 — 1.1 Interest expense, net (36.4) (46.5) (44.9) Debt retirement costs (1.0) (5.9) (2.7) Non-operating pension and other postretirement employee benefits expense (10.4) (7.6) (5.7) Total non-operating expense $ (47.7) $ (59.9) $ (53.3)

Savings, Pension and Other Po_2

Savings, Pension and Other Postretirement Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Changes in Benefit Obligation, Plan Assets and Funded Status for Company-Sponsored Benefit Plans	Pension Benefit Plans Other Postretirement (In millions) 2021 2020 2021 2020 Change in projected benefit obligation: Benefit obligation at beginning of year $ 334.9 $ 316.5 $ 74.2 $ 66.4 Service cost 1.8 2.2 0.4 0.1 Interest cost 8.4 10.4 2.0 2.3 Actuarial (gains) losses (14.0) 26.9 0.2 11.0 Benefits paid (21.1) (21.1) (4.9) (5.6) Benefit obligation at end of year 310.1 334.9 71.9 74.2 Changes in plan assets: Fair value of plan assets at beginning of year 335.9 306.6 — — Actual return on plan assets 2.2 50.0 — — Employer contribution 0.4 0.5 4.9 5.6 Benefits paid (21.1) (21.1) (4.9) (5.6) Fair value of plan assets at end of year 317.5 335.9 — — Funded status at end of year $ 7.4 $ 1.0 $ (71.9) $ (74.2) Amounts recognized in Consolidated Balance Sheets: Non-current assets $ 14.8 $ 13.5 $ — $ — Current liabilities (0.4) (0.4) (5.3) (5.8) Non-current liabilities (7.0) (12.0) (66.6) (68.4) Net amount recognized $ 7.4 $ 1.0 $ (71.9) $ (74.2) Amounts recognized in accumulated other comprehensive loss (pre-tax): Net actuarial loss (gain) $ 57.6 $ 73.3 $ 5.8 $ 5.9
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block]	Information as of December 31 for certain pension plans included above with accumulated benefit obligations in excess of plan assets were as follows: (In millions) 2021 2020 Projected benefit obligation $ 173.9 $ 188.7 Accumulated benefit obligation 173.9 188.7 Fair value of plan assets 166.4 176.2
Pre-tax Components of Net Periodic Cost	Net Periodic Cost Service cost is the actuarial present value of benefits attributed by the plans’ benefit formula to services rendered by employees during the year. Interest cost represents the increase in the projected benefit obligation, which is a discounted amount, due to the passage of time. The expected return on plan assets reflects the computed amount of current-year earnings from the investment of plan assets using an estimated long-term rate of return. Pension Benefit Plans Other Postretirement (In millions) 2021 2020 2019 2021 2020 2019 Service cost $ 1.8 $ 2.2 $ 2.4 $ 0.4 $ 0.1 $ 0.1 Interest cost 8.4 10.4 12.4 2.0 2.3 2.8 Expected return on plan assets (10.6) (15.0) (16.5) — — — Amortization of actuarial loss (gain) 10.2 9.8 7.3 0.3 — (0.3) Net periodic cost (income) $ 9.9 $ 7.5 $ 5.6 $ 2.7 $ 2.4 $ 2.6
Weighted Average Assumptions Used to Determine Benefit Obligation	Assumptions: Pension Benefit Plans Other Postretirement 2021 2020 2019 2021 2020 2019 Actuarial assumption used to determine benefit obligation: Discount rate 3.0 % 2.6 % 3.4 % 2.9 % 2.6 % 3.6 % Actuarial assumption used to determine net periodic pension cost: Discount rate 2.6 % 3.4 % 4.4 % 2.6 % 3.6 % 4.6 % Expected return on plan assets 3.8 % 5.5 % 6.0 % — — —
Investments at Fair Value for Company Sponsored Pension Benefit Plans within Fair Value Hierarchy	The following tables set forth by level, within the fair value hierarchy, the investments at fair value for our company-sponsored pension benefit plans: December 31, 2021 (In millions) Level 1 Investments measured at net asset value Total Cash and cash equivalents $ 5.8 $ — $ 5.8 Common and collective trust: Collective investment funds — 311.7 311.7 Total investments at fair value $ 5.8 $ 311.7 $ 317.5 December 31, 2020 (In millions) Level 1 Investments measured at net asset value Total Cash and cash equivalents $ 2.4 $ — $ 2.4 Common and collective trusts: Collective investment funds — 333.5 333.5 Total investments at fair value $ 2.4 $ 333.5 $ 335.9
Schedule of Expected Benefit Payments	Estimated future benefit payments are as follows for the years indicated: (In millions) Pension Other 2022 $ 20.1 $ 5.3 2023 20.1 5.0 2024 20.0 4.8 2025 19.7 4.6 2026 19.4 4.4 2027-2031 92.4 19.9
Multiemployer Defined Benefit Plans	Pension EIN Plan PPA Zone Status FIP/RP Status Pending/ Contributions Surcharge Expiration Date of Collective Bargaining Agreement 2021 2020 2021 2020 2019 IAM NPF 51-6031295 002 Red Red Implemented $ 0.3 $ 0.3 $ 0.3 No 5/31/2023 PIUMPF 11-6166763 001 Red Red Implemented 5.4 5.5 5.3 No 8/31/2025 Total Contributions: $ 5.7 $ 5.7 $ 5.6
Defined Benefit Plan, Plan Assets, Allocation	Assets are diversified among various asset classes, such as domestic equities, international equities, fixed income and cash. The long-term asset allocation ranges are as follows: Domestic equities 5% - 10% International equities, including emerging markets 5% - 10% Corporate/Government bonds 80% - 90% Liquid reserves —% - 5%

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Accumulated other comprehensive loss at the balance sheet dates is comprised of the following: (In millions) Pension Plan Adjustments Other Postretirement Employee Benefit Plan Adjustments Total Balance at December 31, 2019 $ (67.8) $ 8.3 $ (59.5) Other comprehensive income (loss) before reclassifications 6.0 (8.1) (2.1) Amounts reclassified from accumulated other comprehensive loss 7.3 — 7.3 Other comprehensive income (loss), net of tax 13.3 (8.1) 5.2 Balance at December 31, 2020 (54.5) 0.2 (54.3) Other comprehensive income (loss) before reclassifications 4.1 (0.1) 4.0 Amounts reclassified from accumulated other comprehensive loss 7.6 0.2 7.8 Other comprehensive income, net of tax 11.7 0.1 11.7 Balance at December 31, 2021 $ (42.8) $ 0.3 $ (42.6)

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted Net Earnings per Share	The following table reconciles the number of common shares used in calculating the basic and diluted net earnings per share: December 31, (In thousands - except per share data) 2021 2020 2019 Basic average common shares outstanding 1 16,767 16,569 16,533 Incremental shares due to: Stock-based awards — 141 — Performance Shares — 14 — Diluted average common shares outstanding 16,767 16,724 16,533 Basic net income (loss) per common share $ (1.67) $ 4.65 $ (0.34) Diluted net income (loss) per common share $ (1.67) $ 4.61 $ (0.34)

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Employee Equity-Based Compensation Expense	For The Years Ended December 31, (In millions) 2021 2020 2019 Total equity-based compensation expense $ 9.1 $ 10.5 $ 4.1 Income tax benefit related to equity-based compensation 2.3 2.7 1.0 Impact on cash flow due to taxes paid related to net share settlement of equity awards 1.7 0.7 0.4 Intrinsic value of options exercised, equity-based liabilities paid, and the fair value of restricted stock units vested 3.7 2.9 2.1
Summary of Status of Outstanding RSU Awards	A summary of the status of outstanding restricted stock units as of December 31, 2021, and changes during the year, is presented below: Time Vested Performance-based Shares Weighted Shares Weighted Average Grant Date Fair Value Restricted stock units outstanding at December 31, 2020 425,252 $ 24.52 194,345 $ 27.76 Deferred shares outstanding at December 31, 2020 33,663 7.31 — Total units outstanding at December 31, 2020 458,915 23.26 194,345 $ 27.76 Granted 180,521 35.70 58,738 39.79 Vested (107,501) 23.70 (6,380) 37.45 Forfeited / Canceled 1 (39,625) 33.64 (3,015) 27.11 Deferred shares settled (33,663) 7.31 — Restricted stock units outstanding at December 31, 2021 458,647 27.12 243,688 28.51
Summary of Status of Outstanding Stock Option Awards and Changes During the Year	A summary of the status of outstanding stock option awards as of December 31, 2021, and changes during the year, is presented below: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Life (Years) Aggregate Intrinsic Value Outstanding options at December 31, 2020 353,446 $ 49.13 5.2 $ — Exercised (17,720) 38.31 Expired (13,180) 51.30 Outstanding options at December 31, 2021 322,546 $ 49.64 4.3 $ — Outstanding and exercisable options at December 31, 2021 322,546 $ 49.64 4.3 $ —

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Pulp and Paperboard Our Pulp and Paperboard segment manufactures and markets solid bleached sulfate paperboard for the high-end segment of the packaging industry as well as offers custom sheeting, slitting and cutting of paperboard. Consumer Products Our Consumer Products segment manufactures and sells a complete line of at-home tissue products, or retail products, and minor amounts of parent rolls. The table below presents information about our reportable segments: (In millions) 2021 2020 2019 Segment net sales: Pulp and Paperboard $ 946.0 $ 877.1 $ 885.4 Consumer Products 835.0 1,018.5 902.5 Eliminations (8.4) (27.0) (26.3) Total segment net sales $ 1,772.6 $ 1,868.6 $ 1,761.5 Operating income (loss): Pulp and Paperboard $ 125.7 $ 124.5 $ 114.6 Consumer Products 4.0 110.6 (5.9) Corporate and eliminations (60.1) (63.0) (57.0) Other operating charges, net (57.7) (14.0) (6.3) Income from operations $ 12.0 $ 158.1 $ 45.4 Depreciation and amortization: Pulp and Paperboard $ 35.7 $ 36.7 $ 39.4 Consumer Products 64.9 68.5 69.7 Corporate 4.4 5.8 6.5 Total depreciation and amortization $ 105.0 $ 111.0 $ 115.6 Assets: Pulp and Paperboard $ 621.1 $ 614.9 $ 652.2 Consumer Products 986.2 1,079.9 1,147.1 Corporate 82.8 105.6 78.4 Total assets $ 1,690.1 $ 1,800.4 $ 1,877.7 Capital expenditures: Pulp and Paperboard $ 20.7 $ 20.4 $ 16.7 Consumer Products 17.3 17.4 114.9 38.0 37.8 131.6 Corporate 0.4 1.9 8.5 Total capital expenditures $ 38.4 $ 39.6 $ 140.1
Revenue from External Customers by Geographic Areas [Table Text Block]	Our manufacturing facilities and all other assets are located within the continental United States. We sell and ship our products to customers in several foreign countries. Net sales, classified by the major geographic areas in which our customers are located and by major products, were as follows: (In millions) 2021 2020 2019 Primary geographical markets: United States $ 1,670.2 $ 1,766.2 $ 1,686.2 Other Countries 102.4 102.4 75.3 Total Net Sales $ 1,772.6 $ 1,868.6 $ 1,761.5 Major products: Paperboard $ 894.9 $ 828.0 $ 846.3 Retail tissue 797.9 975.7 845.6 Away-from-home tissue and parent rolls 36.7 41.1 56.5 Pulp 34.8 41.4 31.2 Other 16.6 9.2 8.4 Eliminations (8.4) (27.0) (26.3) Total net sales $ 1,772.6 $ 1,868.6 $ 1,761.5
Revenue from External Customers by Products and Services [Table Text Block]	Our manufacturing facilities and all other assets are located within the continental United States. We sell and ship our products to customers in several foreign countries. Net sales, classified by the major geographic areas in which our customers are located and by major products, were as follows: (In millions) 2021 2020 2019 Primary geographical markets: United States $ 1,670.2 $ 1,766.2 $ 1,686.2 Other Countries 102.4 102.4 75.3 Total Net Sales $ 1,772.6 $ 1,868.6 $ 1,761.5 Major products: Paperboard $ 894.9 $ 828.0 $ 846.3 Retail tissue 797.9 975.7 845.6 Away-from-home tissue and parent rolls 36.7 41.1 56.5 Pulp 34.8 41.4 31.2 Other 16.6 9.2 8.4 Eliminations (8.4) (27.0) (26.3) Total net sales $ 1,772.6 $ 1,868.6 $ 1,761.5

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Cash and Cash Equivalents) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 25.2	$ 35.9	$ 20
Restricted cash	0	0	1.4
Restricted Cash, Noncurrent	1.1	1.1	1
Cash, cash equivalents and restricted cash at beginning of period	$ 26.2	$ 36.9	$ 22.4	$ 24.9

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Accounts Receivables) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Accounts Receivable, before Allowance for Credit Loss	$ 154.1	$ 139
Accounts Receivable, Allowance for Credit Loss, Current	(1.4)	(1.6)
Unbilled Receivables, Current	7.2	5.1
Income Taxes Receivable, Current	6.1	16
Other Receivables, Net, Current	1.4	2.1
Receivables, net of allowance for current expected credit losses of $1.4 and $1.6 at December 31, 2021 and 2020	$ 167.4	$ 160.6

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Inventories) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Inventory, Finished Goods, Gross	$ 148	$ 137
Other Inventory, Supplies, Gross	100.1	97.7
Inventories	277.7	263.3
Raw Materials
Accounting Policies [Abstract]
Inventory, Raw Materials, Gross	13.7	17.2
Inventory [Line Items]
Inventory, Raw Materials, Gross	13.7	17.2
Inventory Pulp [Member]
Accounting Policies [Abstract]
Inventory, Raw Materials, Gross	15.9	11.5
Inventory [Line Items]
Inventory, Raw Materials, Gross	$ 15.9	$ 11.5

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (PP&E) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 2,961.5	$ 3,072.6
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(1,879.7)	(1,881.1)
Property, plant and equipment, net	1,081.8	1,191.5
Finance Lease, Right-of-Use Asset, before Accumulated Amortization	27.7	26.7
Interest Costs Capitalized		0
Depreciation and amortization	105	111	$ 115.6
Interest Costs Capitalized Adjustment	0.3	0	5.9
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Depreciation and amortization	102	107.8	$ 108.4
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	452.5	480.1
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	109.1	111.5
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	22.4	21.8
Land and Land Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 2,377.5	$ 2,459.2
Minimum | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Minimum | Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Minimum | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Maximum | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Maximum | Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Maximum | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	25 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Accounts Receivables Arrangement - Factoring) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Accounts Receivable, Sale	$ 202.2	$ 256.2
Gain (Loss) on Sale of Accounts Receivable	$ 0.9	$ 1.2	$ 1

Summary of Significant Accoun_7

Summary of Significant Accounting Policies (Environmental and ARO) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Asset Retirement Obligation	$ 2	$ 3.8	$ 1.1
Accretion Expense, Including Asset Retirement Obligations	0.1	0.1
Asset Retirement Obligation, Accretion Expense	0	0.1
Increase (Decrease) in Asset Retirement Obligations	(1.8)	2.5	$ 1
Asset Retirement Obligation, Cash Paid to Settle	$ (0.1)	$ 0

Summary of Significant Accoun_8

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Accounts Receivable, before Allowance for Credit Loss	$ 154.1	$ 139
Accounts Receivable, Allowance for Credit Loss, Current	(1.4)	(1.6)
Unbilled Receivables, Current	7.2	5.1
Income Taxes Receivable, Current	6.1	16
Other Receivables, Net, Current	1.4	2.1
Receivables, net of allowance for current expected credit losses of $1.4 and $1.6 at December 31, 2021 and 2020	167.4	160.6
Interest Costs Capitalized		0
Inventory, Finished Goods, Gross	148	137
Other Inventory, Supplies, Gross	100.1	97.7
Depreciation and amortization	105	111	$ 115.6
Asset Retirement Obligation	2	3.8	1.1
Accretion Expense, Including Asset Retirement Obligations	0.1	0.1
Asset Retirement Obligation, Accretion Expense	0	0.1
Increase (Decrease) in Asset Retirement Obligations	(1.8)	2.5	$ 1
Asset Retirement Obligation, Cash Paid to Settle	(0.1)	0
Accrued Customer Rebates	$ 9.2	$ 10.5

Summary of Significant Accoun_9

Summary of Significant Accounting Policies (Revenue Recog) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Accrued Customer Rebates	$ 9.2	$ 10.5

Leases (Details)

Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	$ 16.6	$ 15.9	$ 15
Finance Lease, Right-of-Use Asset, Amortization	1.8	1.8	1.7
Finance Lease, Interest Expense	1.7	1.8	1.9
Variable Lease, Cost	1.7	1.6	1.2
Lease, Cost	21.8	21	19.8
Operating Lease, Payments	18.8	17.9	16.6
Finance Lease, Interest Payment on Liability	1.6	1.8	1.9
Finance Lease, Principal Payments	1.7	1.6	1.3
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	5	4.4	2.5
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	0	0.3	0.5
Finance Lease, Right-of-Use Asset, before Accumulated Amortization	27.7	26.7
Finance Lease, Right-of-Use Asset, Accumulated Amortization	(15.2)	(12.7)
Total lease ROU assets	$ 66.1	$ 77.5
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current portion of long-term debt	Current portion of long-term debt
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Deferred tax liabilities and other long-term obligations	Deferred tax liabilities and other long-term obligations
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
Operating Lease, Liability	$ 58.8	$ 69.5
Finance Lease, Liability	19.1	20.8
Lease Liability	$ 77.9	$ 90.3
Operating Lease, Weighted Average Remaining Lease Term	5 years 3 months 18 days	5 years 9 months 18 days
Finance Lease, Weighted Average Remaining Lease Term	9 years	9 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	4.80%	4.90%
Finance Lease, Weighted Average Discount Rate, Percent	8.40%	8.40%
Lessee, Operating Lease, Liability, to be Paid, Year One	$ 18.5
Finance Lease, Liability, Payments, Due Next Twelve Months	3.2
Lessee, Operating Lease, Liability, Payments, Due Year Two	11.7
Finance Lease, Liability, Payments, Due Year Two	2.9
Lessee, Operating Lease, Liability, Payments, Due Year Three	8.4
Finance Lease, Liability, Payments, Due Year Three	2.8
Lessee, Operating Lease, Liability, Payments, Due Year Four	7.8
Finance Lease, Liability, Payments, Due Year Four	2.8
Lessee, Operating Lease, Liability, Payments, Due Year Five	7.8
Finance Lease, Liability, Payments, Due Year Five	2.9
Lessee, Operating Lease, Liability, Payments, Due after Year Five	12.7
Finance Lease, Liability, Payments, Due after Year Five	13
Lessee, Operating Lease, Liability, Payments, Due	66.9
Finance Lease, Liability, Payment, Due	27.6
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(8.1)
Finance Lease, Liability, Undiscounted Excess Amount	(8.5)
Lease, Cost	$ 21.8	$ 21	19.8
Maximum [Member]
Lessee, Lease, Description [Line Items]
Remaining lease term	9 years
Minimum [Member]
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Accrued Liabilities
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Current	$ 16.1	15.3
Other Noncurrent Assets
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	53.6	63.5
Property, Plant and Equipment
Lessee, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset	12.5	14
Long-term Debt
Lessee, Lease, Description [Line Items]
Finance Lease, Liability, Noncurrent	17.5	19.1
Finance Lease, Liability	19.1
Short-term Debt
Lessee, Lease, Description [Line Items]
Finance Lease, Liability, Current	1.6	1.7
Non-current operating lease liabilities
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Noncurrent	42.7	54.3
Finance lease costs [Member]
Lessee, Lease, Description [Line Items]
Lease, Cost	3.5	3.5	3.6
Lease, Cost	$ 3.5	$ 3.5	$ 3.6

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Details) $ in Millions	Dec. 31, 2021USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2022	$ 2.2
2023	2.1
2024	2.1
2025	2.1
2026	2.1
Net Balance	$ 10.8

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Details (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Intangible Assets, Net (Including Goodwill)	$ 45.9	$ 48.8	$ 52
Amortization of Intangible Assets	(2.9)	(3.2)
Finite-Lived Intangible Assets, Accumulated Amortization	24.1	50.1
Intangible Assets, Gross (Excluding Goodwill)	$ 34.9	63.8
Maximum [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Consumer Products [Member]
Goodwill [Line Items]
Intangible Assets, Net (Excluding Goodwill)	$ 0	0	0.3
Amortization of Intangible Assets	0	(0.3)
Pulp And Paperboard [Member]
Goodwill [Line Items]
Goodwill	35.1	35.1	35.1
Intangible Assets, Net (Excluding Goodwill)	10.8	13.7	$ 16.6
Amortization of Intangible Assets	(2.9)	(2.9)
Customer Relationships [Member]
Goodwill [Line Items]
Intangible Assets, Net (Excluding Goodwill)	10.7	12.8
Trademarks and Trade Names [Member]
Goodwill [Line Items]
Intangible Assets, Net (Excluding Goodwill)		0.7
Other Intangible Assets [Member]
Goodwill [Line Items]
Intangible Assets, Net (Excluding Goodwill)	$ 0.1	$ 0.2

Income Taxes - Provision (Benef

Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current
Federal	$ 1.3	$ (17.4)	$ (2.1)
State	0.7	1.8	0.1
Current Income Tax Expense (Benefit)	2	(15.6)	(2)
Deferred
Federal	(8.8)	32.5	(0.6)
State	(0.9)	4.2	0.3
Deferred tax expense	(9.7)	36.7	(0.3)
Income tax provision	(7.7)	21.1	(2.3)
Income Tax Examination [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	0	(0.1)	(2.3)
CARES Act Tax Benefit		7
Federal	1.3	(17.4)	(2.1)
State	0.7	1.8	0.1
Current Income Tax Expense (Benefit)	2	(15.6)	(2)
Federal	(8.8)	32.5	(0.6)
State	(0.9)	4.2	0.3
Deferred taxes	(9.7)	36.7	(0.3)
Income tax (provision) benefit	$ (7.7)	$ 21.1	$ (2.3)

Income Taxes - Income Tax Recon

Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Computed expected tax provision	$ (7.5)	$ 20.6	$ (1.7)
State and local taxes, net of federal income tax impact	0.2	5.6	(0.9)
Effective Income Tax Rate Reconciliation, Tax Contingency, State and Local, Amount	(0.4)	(0.3)	(1.2)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ 0	$ (7)	$ 0
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	(0.50%)	5.70%	11.40%
Effective Income Tax Rate Reconciliation, Tax Contingency, State and Local, Percent	1.20%	(0.30%)	15.50%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	0.00%	(7.10%)	0.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(0.20%)	1.30%	(29.40%)
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount	$ (0.1)	$ (1.3)	$ (2.3)
Uncertain tax positions	0.50%	2.20%	(9.40%)
Effective Income Tax Rate Reconciliation, Uncertain Tax Positions	(0.50%)	(2.20%)	9.40%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent	1.40%	1.20%	(7.00%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount	$ (0.5)	$ 1.2	$ 0.6
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	(2.00%)	1.10%	(5.20%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	$ 0.7	$ 1.1	$ 0.4
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	0.10%	(0.10%)	29.20%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 0	$ 0.1	$ 2.3
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 0	$ (0.1)	$ (2.3)
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent	0.20%	(1.10%)	2.90%
Other	$ (0.1)	$ (1.1)	$ (0.2)
Effective Income Tax Rate Reconciliation, Percent	21.60%	21.50%	29.40%
Income tax provision	$ (7.7)	$ 21.1	$ (2.3)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Uncertain Tax Positions, Amount	$ (0.2)	$ 2.2	$ 0.7

Income Taxes - Tax Effects of S

Income Taxes - Tax Effects of Significant Temporary Differences Creating Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets, Gross [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits	$ 3.4	$ 3.4
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits	18.5	19.2
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	6.6	5.2
Deferred Tax Assets, Inventory	0.2	0.6
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions	0	0.2
Deferred Tax Assets, Tax Credit Carryforwards	13.5	16.2
Deferred Tax Assets, Operating Loss Carryforwards	4.1	3.9
Deferred tax assets, gross	61.5	68.5
Deferred Tax Assets, Valuation Allowance	5.4	5.4
Deferred Tax Assets, Net of Valuation Allowance	56.1	63.1
Deferred Tax Liabilities, Tax Deferred Expense, Compensation and Benefits Pension and Other Postretirement Benefits	(1.5)	0
Deferred tax liabilities:
Plant and equipment	(185.5)	(199.7)
Deferred Tax Liabilities, Leasing Arrangements	(13.8)	(16.4)
Intangible assets	(2.3)	(3)
Deferred Tax Liabilities, Other	0.6	0
Deferred Tax Liabilities, Gross	203.7	219.1
Deferred Tax Liabilities, Net	147.6	156
Lease Agreements [Member]
Deferred Tax Assets, Gross [Abstract]
Deferred Tax Assets, Other	15.2	18
Other Expense [Member]
Deferred Tax Assets, Gross [Abstract]
Deferred Tax Assets, Other	$ 0	$ 1.8

- Net Deferred Tax Assets (Liab

- Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Disclosure Net Deferred Tax Assets Liabilities [Abstract]
Deferred Income Tax Assets, Net	[1]	$ 2.2	$ 2.1
Deferred tax liabilities and other long-term obligations		149.9	158.1
Deferred Tax Liabilities, Net		(147.6)	(156)
Deferred Tax Liabilities, Other		(0.6)	0
Deferred Tax Liabilities, Tax Deferred Expense, Compensation and Benefits Pension and Other Postretirement Benefits		$ (1.5)	$ 0
[1]	Included in "Other assets, net" on our accompanying December 31, 2021 and 2020 Consolidated Balance Sheets.

Income Taxes - Tax Credits and

Income Taxes - Tax Credits and Losses Subject to Expiration by Major Jurisdictions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Tax Credit Carryforward [Line Items]
Change in prior year tax positions	$ (700)	$ 1,900
Change in current year tax positions	$ 200	$ 400

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Tax Credit Carryforward [Line Items]
CARES Act Tax Benefit			$ 7
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		$ 0	7	$ 0
Deferred Tax Assets, Valuation Allowance		5.4	5.4
Change in valuation allowance		0	0.1	2.3
Unrecognized tax benefits , if recognized, would favorably impact effective tax rate		5.5	6.4	$ 3.5
Accrued interest related to tax obligations		0.1
Federal and state credit carryforwards		13.5	16.2
Deferred Income Tax Assets, Net	[1]	2.2	2.1
Deferred Income Tax Liabilities, Net		(149.9)	$ (158.1)
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit		2.6
Valuation allowances, State Tax Credits [Member]
Tax Credit Carryforward [Line Items]
Change in valuation allowance		$ (9.1)
[1]	Included in "Other assets, net" on our accompanying December 31, 2021 and 2020 Consolidated Balance Sheets.

Income Taxes - Roll Forward of

Income Taxes - Roll Forward of Unrecognized Tax Benefits and Associated Interest and Penalties Included in Balance Sheet (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Balance	$ 6,400	$ 4,100
Change in prior year tax positions	(700)	1,900
Change in current year tax positions	200	400
Balance	5,900	6,400
Gross Unrecognized Tax Benefits, Excluding Interest and Penalties
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Balance	6,100	3,700
Change in prior year tax positions	(700)	2,000
Change in current year tax positions	200	400
Balance	5,600	6,100
Interest and Penalties
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Balance	300	400
Change in prior year tax positions	0	(100)
Change in current year tax positions	0	0
Balance	$ 300	$ 300

Accounts Payable and Accrued _3

Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Capital Expenditures Incurred but Not yet Paid	$ 11	$ 12.1
Accounts Payable and Accrued Liabilities, Current, Total	252.5	243.1
Accounts Payable, Trade, Current	168.3	143.4
Employee-related Liabilities, Current	29.3	41.7
Accrued interest	12	12.6
Accrued taxes other than income taxes payable	10.9	10.5
Current liability for pension and other postretirement employee benefits	5.7	6.2
Other	5.4	8.5
Accrued Discounts And Allowances, Current [Domain]
Accrued Liabilities	4.7	4.9
Accrued Liabilities
Operating Lease, Liability, Current	16.1	15.3
Operating Lease, Liability, Current	16.1	15.3
Accounts Payable and Accrued Liabilities
Operating Lease, Liability, Current	16.1	15.3
Operating Lease, Liability, Current	$ 16.1	$ 15.3

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($)	Jul. 29, 2014	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2021	Aug. 18, 2020	Oct. 31, 2016
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 644,100,000	$ 725,000,000
Unamortized Debt Issuance Expense		$ 4,800,000	6,900,000
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		3.50%
Finance Lease, Liability		$ 19,100,000	20,800,000
Long-term debt		637,600,000	716,400,000
Proceeds from Equity Method Investment, Distribution, Return of Capital		639,200,000	718,100,000
Borrowings of long-term debt		0	275,000,000	$ 296,100,000
Debt retirement costs		(1,000,000)	(5,900,000)	(2,700,000)
Write off of Deferred Debt Issuance Cost		1,000,000	5,900,000	2,700,000
Amortization of deferred issuance costs on debt		1,800,000	2,100,000	$ 2,000,000
Long-term Debt, Fair Value		653,300,000	740,000,000
Long-term Debt and Lease Obligation, Current		1,600,000	1,700,000
Long-term debt		642,500,000	723,300,000
Potential additional lines of credit		$ 100,000,000
Ratio of Indebtedness to Net Capital		2
Debt covenant, actual fixed charge ratio		0.0356
Line of Credit Facility, Remaining Borrowing Capacity		$ 243,600,000
Debt Instrument, Repayment Terms, Percentage Of Principal		0.25%
Long-term Line of Credit		$ 0	0
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months		1,600,000
Long-term Debt, Maturities, Repayments of Principal in Year Two		1,500,000
Long-term Debt, Maturities, Repayments of Principal in Year Three		1,500,000
Long-term Debt, Maturities, Repayments of Principal in Year Four		301,700,000
Long-term Debt, Maturities, Repayments of Principal in Year Five		51,900,000
Long-term Debt, Maturities, Repayments of Principal after Year Five		$ 285,900,000
Leverage Ratio		0.034
First Lien Secured Ratio		0.24
Minimum
Debt Instrument [Line Items]
Debt Instrument, Repayment Terms, Asset Sales, Percentage Of Principal		0.00%
Maximum
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital		4.25
Debt Instrument, Repayment Terms, Asset Sales, Percentage Of Principal		50.00%
London Interbank Offered Rate (LIBOR) [Member] | Minimum
Debt Instrument [Line Items]
Interest rate spread		3.00%
London Interbank Offered Rate (LIBOR) [Member] | Maximum
Debt Instrument [Line Items]
Interest rate spread		3.25%
Base Rate [Member] | Minimum
Debt Instrument [Line Items]
Interest rate spread		2.00%
Base Rate [Member] | Maximum
Debt Instrument [Line Items]
Interest rate spread		2.25%
Wells Fargo [Member]
Debt Instrument [Line Items]
Write off of Deferred Debt Issuance Cost			1,000,000
Credit facility, maximum borrowing capacity							$ 200,000,000
Debt Extinguishment Costs, Breakage Fees			1,700,000
Line of Credit Facility, Fair Value of Amount Outstanding							135,000,000
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net			1,600,000
Debt Issuance Costs, Line of Credit Arrangements, Net			7,300,000
Northwest Farm Credit Services, PCA [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity							200,000,000
Line of Credit Facility, Fair Value of Amount Outstanding							$ 200,000,000
J.P. Morgan [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 250,000,000
Potential additional lines of credit		$ 100,000,000
Ratio of Indebtedness to Net Capital		1.10
J.P. Morgan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate		125.00%
J.P. Morgan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate		175.00%
J.P. Morgan [Member] | Base Rate [Member] | Minimum
Debt Instrument [Line Items]
Interest rate spread		25.00%
J.P. Morgan [Member] | Base Rate [Member] | Maximum
Debt Instrument [Line Items]
Interest rate spread		75.00%
Term Loan [Member]
Debt Instrument [Line Items]
Write off of Deferred Debt Issuance Cost		$ 1,000,000	2,600,000
Debt Instrument, Increase (Decrease), Other, Net		79,300,000
Senior Note Due 2023 [Member]
Debt Instrument [Line Items]
Debt retirement costs			3,200,000
Write off of Deferred Debt Issuance Cost			1,200,000
Debt Extinguishment costs, Premium on Bonds			2,100,000
Revolving Credit Facility [Member] | J.P. Morgan [Member]
Debt Instrument [Line Items]
Outstanding stand by letters of credit		$ 3,600,000
Loan Lending Commitment Arrangement Fees [Member] | J.P. Morgan [Member] | Minimum
Debt Instrument [Line Items]
Interest rate spread		25.00%
Loan Lending Commitment Arrangement Fees [Member] | J.P. Morgan [Member] | Maximum
Debt Instrument [Line Items]
Interest rate spread		37.50%
Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		3.10%
Debt margin		3.00%
Term Loan [Member] | J.P. Morgan [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 50,000,000	129,300,000
Unamortized Debt Issuance Expense		600,000	1,900,000
Long-term Debt		49,400,000	127,400,000
Line of Credit Facility, Fair Value of Amount Outstanding		49,800,000	129,600,000
Long-term Line of Credit		300,000,000
Line of Credit [Member] | J.P. Morgan [Member]
Debt Instrument [Line Items]
Long-term Line of Credit					$ 58,000,000
Senior Note Due 2025 [Member] | Estimate of Fair Value Measurement [Member]
Debt Instrument [Line Items]
Long-term Debt, Fair Value		324,600,000	325,100,000
Senior Note Due 2025 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		300,000,000	300,000,000
Unamortized Debt Issuance Expense		900,000	1,200,000
Long-term Debt		$ 299,100,000	298,800,000
Debt instrument, principal amount	$ 300,000,000
Debt instrument, interest rate	5.375%
Redemption Price	100.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		5.40%
Senior Note Due 2025 [Member] | Minimum
Debt Instrument [Line Items]
Debt Instrument Redemption Notice Term	30 days
Senior Note Due 2025 [Member] | Maximum
Debt Instrument [Line Items]
Debt Instrument Redemption Notice Term	60 days
Senior Note Due 2028 | Estimate of Fair Value Measurement [Member]
Debt Instrument [Line Items]
Long-term Debt, Fair Value		$ 278,900,000	285,300,000
Senior Note Due 2028
Debt Instrument [Line Items]
Long-term Debt, Gross		275,000,000	275,000,000
Unamortized Debt Issuance Expense		3,400,000	3,900,000
Long-term Debt		$ 271,600,000	$ 271,100,000
Debt instrument, principal amount						$ 275,000,000
Debt instrument, interest rate						4.75%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		4.80%

Other Operating Charges, net (D

Other Operating Charges, net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Expenses	$ 0	$ 0	$ 2.1
Other Cost and Expense, Operating	57.7	14	6.3
Increase (Decrease) in Asset Retirement Obligations	(1.8)	2.5	1
(Gain) loss on sale or impairment associated with divested assets	50	1.4	0
Other Restructuring Costs	8.4	3.4	2.9
Severance and Other Related Closure Costs
Other Cost and Expense, Operating	12.8
Collective-Bargaining Arrangement, Other [Member]
Payments to Employees	0	6.6	0
Consumer Products | Collective-Bargaining Arrangement, Other [Member]
Payments to Employees		2.6
Pulp And Paperboard [Member] | Collective-Bargaining Arrangement, Other [Member]
Payments to Employees		4
Other Operating Income (Expense) [Member]
Asset Impairment Charges	37.2
Director [Member]
Share-based Payment Arrangement, Expense	$ 1.1	$ 2.9	$ 0.3

Non Operating Income and Expe_3

Non Operating Income and Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Interest Expense	$ (35.5)	$ (44.4)	$ (49.8)
Amortization of Debt Issuance Costs	(1.8)	(2.1)	(2)
Interest Income, Other	0.6	0	1.1
Interest expense, net	(36.4)	(46.5)	(44.9)
Write off of Deferred Debt Issuance Cost	(1)	(5.9)	(2.7)
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component	(10.4)	(7.6)	(5.7)
Nonoperating Income (Expense)	(47.7)	(59.9)	(53.3)
Interest Costs Capitalized Adjustment	$ 0.3	$ 0	$ 5.9

Savings, Pension and Other Po_3

Savings, Pension and Other Postretirement Employee Benefit Plans - Changes in Benefit Obligation, Plan Assets and Funded Status for Company-Sponsored Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Current liability for pension and other postretirement employee benefits	$ (5.7)	$ (6.2)
Liability for pension and other postretirement employee benefits	(73.6)	(80.5)
Pension Benefit Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	334.9	316.5
Service cost	1.8	2.2	$ 2.4
Interest cost	8.4	10.4	12.4
Actuarial losses (gains)	(14)	26.9
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(21.1)	(21.1)
Benefit obligation at end of year	310.1	334.9	316.5
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	335.9	306.6
Actual return on plan assets	2.2	50
Employer contribution	0.4	0.5
Defined Benefit Plan, Plan Assets, Benefits Paid	21.1	21.1
Fair value of plan assets at end of year	317.5	335.9	306.6
Funded status at end of year	7.4	1
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(7.4)	(1)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Assets for Plan Benefits, Defined Benefit Plan	14.8	13.5
Current liability for pension and other postretirement employee benefits	(0.4)	(0.4)
Liability for pension and other postretirement employee benefits	(7)	(12)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	7.4	1
Net actuarial loss (gain)	57.6	73.3
Other Postretirement Employee Benefit Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	74.2	66.4
Service cost	0.4	0.1	0.1
Interest cost	2	2.3	2.8
Actuarial losses (gains)	0.2	11
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(4.9)	(5.6)
Benefit obligation at end of year	71.9	74.2	66.4
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contribution	4.9	5.6
Defined Benefit Plan, Plan Assets, Benefits Paid	4.9	5.6
Fair value of plan assets at end of year	0	0	$ 0
Funded status at end of year	(71.9)	(74.2)
Defined Benefit Plan, Funded (Unfunded) Status of Plan	71.9	74.2
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Assets for Plan Benefits, Defined Benefit Plan	0	0
Current liability for pension and other postretirement employee benefits	(5.3)	(5.8)
Liability for pension and other postretirement employee benefits	(66.6)	(68.4)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	(71.9)	(74.2)
Net actuarial loss (gain)	$ 5.8	$ 5.9

- Certain Pension Plans with Ac

- Certain Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	$ 173.9	$ 188.7
Accumulated benefit obligation	173.9	188.7
Fair value of plan assets	$ 166.4	$ 176.2

Savings, Pension and Other Po_4

Savings, Pension and Other Postretirement Employee Benefit Plans - Pre-tax Components of Net Periodic Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1.8	$ 2.2	$ 2.4
Interest cost	8.4	10.4	12.4
Expected return on plan assets	(10.6)	(15)	(16.5)
Amortization of actuarial loss	10.2	9.8	7.3
Net periodic cost	9.9	7.5	5.6
Other Postretirement Employee Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.4	0.1	0.1
Interest cost	2	2.3	2.8
Expected return on plan assets	0	0	0
Amortization of actuarial loss	0.3	0	(0.3)
Net periodic cost	$ 2.7	$ 2.4	$ 2.6

Savings, Pension and Other Po_5

Savings, Pension and Other Postretirement Employee Benefit Plans - Weighted Average Assumptions Used to Determine Benefit Obligation (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.00%	2.60%	3.40%
Discount rate	2.60%	3.40%	4.40%
Expected return on plan assets	3.80%	5.50%	6.00%
Other Postretirement Employee Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.90%	2.60%	3.60%
Discount rate	2.60%	3.60%	4.60%
Expected return on plan assets	0.00%	0.00%	0.00%

Savings, Pension and Other Po_6

Savings, Pension and Other Postretirement Employee Benefit Plans - Weighted Average Assumptions Used to Determine Net Periodic Cost (Benefit) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.60%	3.40%	4.40%
Expected return on plan assets	3.80%	5.50%	6.00%
Other Postretirement Employee Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.60%	3.60%	4.60%
Expected return on plan assets	0.00%	0.00%	0.00%

Savings, Pension and Other Po_7

Savings, Pension and Other Postretirement Employee Benefit Plans - Investments at Fair Value for Company Sponsored Pension Benefit Plans Within Fair Value Hierarchy (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 5.8	$ 2.4
Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	317.5	335.9
defined benefit plan net asset value	311.7	333.5
Defined Benefit Plan, Common Collective Trust
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	311.7	333.5
Fair Value, Inputs, Level 1 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5.8	2.4
Fair Value, Inputs, Level 1 | Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5.8	2.4
Fair Value, Inputs, Level 1 | Defined Benefit Plan, Common Collective Trust
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value Measured at Net Asset Value Per Share | Defined Benefit Plan, Common Collective Trust
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 311.7	$ 333.5

Savings, Pension and Other Po_8

Savings, Pension and Other Postretirement Employee Benefit Plans - Long Term Asset Allocation Ranges (Details)	Dec. 31, 2021USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Number of Investment Options Holding Substantially All Pension Funds	8
Minimum [Member] | Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%
Minimum [Member] | International equities, including emerging markets
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%
Minimum [Member] | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	80.00%
Minimum [Member] | Liquid reserves
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Maximum | Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	10.00%
Maximum | International equities, including emerging markets
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	10.00%
Maximum | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	90.00%
Maximum | Liquid reserves
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%

Savings, Pension and Other Po_9

Savings, Pension and Other Postretirement Employee Benefit Plans - Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2021USD ($)
Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
2022	$ 20.1
2023	20.1
2024	20
2025	19.7
2026	19.4
2027-2031	92.4
Other Postretirement Employee Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
2022	5.3
2023	5
2024	4.8
2025	4.6
2026	4.4
2027-2031	$ 19.9

Savings, Pension and Other P_10

Savings, Pension and Other Postretirement Employee Benefit Plans - Multiemployer Defined Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Plan, Pension, Significant, Employer Contribution, Cost	$ 5.7	$ 5.7	$ 5.6
Multiemployer Plan, Contribution Rate Increase (Decrease)	250.00%
IAM
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Plan, Pension, Significant, Surcharge [Fixed List]	No
Multiemployer Plan, Pension, Significant, Plan Number	002
Multiemployer Plan, Pension, Significant, Employer Contribution, Cost	$ 0.3	$ 0.3	0.3
Multiemployer Plan, Pension, Significant, Collective-Bargaining Arrangement, Expiration Date	May 31, 2023
Multiemployer Plan, Pension, Significant, Certified Zone Status [Fixed List]	Red	Red
USW
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Plan, Pension, Significant, Surcharge [Fixed List]	No
Multiemployer Plan, Pension, Significant, Plan Number	001
Multiemployer Plan, Pension, Significant, Employer Contribution, Cost	$ 5.4	$ 5.5	$ 5.3
Multiemployer Plan, Pension, Significant, Collective-Bargaining Arrangement, Expiration Date	Aug. 31, 2025
Multiemployer Plan, Pension, Significant, Certified Zone Status [Fixed List]	Red	Red

- Additional Information (Detai

- Additional Information (Details)	7 Months Ended	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2021USD ($)facility$ / Hour	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Defined Benefit Plans Contribution Rate | $ / Hour		4
Defined Benefit Plan, Number of Investment Options Holding Substantially All Pension Funds		8
Employer contributions		$ 16,400,000	$ 17,300,000	$ 15,300,000
Number of our manufacturing facilities participating in multiemployer defined benefit pension plans | facility		1
Multiemployer Plans, Withdrawal Obligation		$ 90,000,000
Contribution rates | $ / Hour		4
Additional contribution, percent of contractual contribution rate	2.50%	7.75%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay		7.70%
Defined Contribution Plan, Employer Discretionary Contribution Amount		$ 0.035
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		4.20%
Other Deferred Compensation Arrangements, Liability, Current and Noncurrent		$ 4,400,000	3,200,000
USW
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Defined Benefit Plans Contribution Rate | $ / Hour		2.79
Contribution rates | $ / Hour		2.79
Maximum | Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		10.00%
Maximum | International Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		10.00%
Maximum | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		90.00%
Maximum | Liquid reserves
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		5.00%
Minimum | Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		5.00%
Minimum | International Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		5.00%
Minimum | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		80.00%
Minimum | Liquid reserves
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		0.00%
Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 306,600,000	$ 317,500,000	335,900,000	306,600,000
Employer contribution		$ 400,000	500,000
Other Postretirement Employee Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
defined benefit plan, ultimate health care cost trend rates, with added benefits		4.50%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year		6.30%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate		5.70%
Assumed health care cost trend rates used to determine the company's benefit obligations and expense		6.30%
Assumed health care cost trend rates, graded rate		5.70%
Expected year when trend rate to be reached		60 years
Fair value of plan assets	$ 0	$ 0	0	0
Employer contribution		$ 4,900,000	5,600,000
Other Postretirement Employee Benefit Plans | Maximum
Defined Benefit Plan Disclosure [Line Items]
defined benefit plan, ultimate health care cost trend rates, with added benefits		3.70%
Assumed health care cost trend rate, graded		3.70%
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contribution		$ 400,000
Defined Benefit Plan, Accumulated Benefit Obligation		1,400,000	2,400,000
Cost of Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax		2,000,000	1,900,000
Selling, General and Administrative Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax		$ 200,000	$ 500,000	1,000,000
Non-operating expense [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax				$ 1,500,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, net of tax	$ (42.6)	$ (54.3)
Net current period other comprehensive income ending balance	11.7	5.2	$ 7.8
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax	(2.7)	(2.5)	(1.9)
Defined Benefit Pension Plan Adjustments
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, net of tax	(42.6)	(54.3)	(59.5)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	4	(2.1)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	7.8	7.3
Net current period other comprehensive income ending balance		5.2
Pension Benefit Plans | Defined Benefit Pension Plan Adjustments
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, net of tax	(42.8)	(54.5)	(67.8)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	4.1	6
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	7.6	7.3
Net current period other comprehensive income ending balance	11.7	13.3
Other Postretirement Benefits Plan [Member]
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, net of tax	0.3	0.2	$ 8.3
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(0.1)	(8.1)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.2	0
Net current period other comprehensive income ending balance	$ 0.1	$ (8.1)

Earnings Per Share - Share Reco

Earnings Per Share - Share Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted Net Earnings Per Share (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Weighted average number of shares outstanding, basic	16,767,000	16,569,000	16,533,000
Weighted average number of shares outstanding, diluted	16,767,000	16,724,000	16,533,000
Earnings per share, basic	$ (1.67)	$ 4.65	$ (0.34)
Earnings per share, diluted	$ (1.67)	$ 4.61	$ (0.34)
Anti-dilutive shares excluded from calculation	700,000	500,000	1,000,000
Restricted Stock Units (RSUs) [Member]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	141,000	0
Performance Shares [Member]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	14,000	0

Stockholders' Equity - Employee

Stockholders' Equity - Employee Plans Equity Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation expense	$ 9,100	$ 10,500	$ 4,100
Share-based Payment Arrangement, Expense, Tax Benefit	2,300	2,700	1,000
Payment, Tax Withholding, Share-based Payment Arrangement	1,700	700	400
Intrinsic value of options exercised, equity-based liabilities paid, and the fair value of restricted stock units vested	$ 3,700	$ 2,900	$ 2,100
Share based compensation awards vesting period	3 years

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Status of Outstanding RSU Awards (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Weighted Average Grant Date Fair Value
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 10.5
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 38.31
Restricted stock units
Number of share
Beginning Balance	425,252
Granted	180,521
Vested	(107,501)
Forfeited	(39,625)
Ending Balance	458,647	425,252
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested and Deferred Share Balance, Weighted Average Grant Date Fair Value		$ 7.31
Weighted Average Grant Date Fair Value
Beginning Balance	$ 24.52
Granted	35.70	23.46
Vested	23.70
Forfeited	33.64
Ending Balance	$ 27.12	$ 24.52
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	1 year 10 months 24 days
Restricted stock units | Deferred Compensation, Share-based Payments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number		33,663
Number of share
Beginning Balance	458,915
Performance share and restricted stock unit awards (in shares)	(33,663)
Ending Balance		458,915
Weighted Average Grant Date Fair Value
Beginning Balance	$ 23.26
Vested	$ 7.31
Ending Balance		$ 23.26
Performance Shares [Member]
Number of share
Beginning Balance	194,345
Granted	58,738
Vested	(6,380)
Forfeited	(3,015)
Ending Balance	243,688	194,345
Weighted Average Grant Date Fair Value
Beginning Balance	$ 27.76
Granted	39.79
Vested	37.45
Forfeited	27.11
Ending Balance	$ 28.51	$ 27.76
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	1 year 6 months

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of Status of Outstanding Performance Share Awards (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Beginning Balance	353,446
Ending Balance	322,546
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $	$ 10.5
Performance shares
Number of share
Beginning Balance	194,345
Granted	58,738
Settled	(6,380)
Forfeited	(3,015)
Ending Balance	243,688
Weighted Average Grant Date Fair Value
Beginning Balance | $ / shares	$ 27.76
Granted | $ / shares	39.79
Settled | $ / shares	37.45
Forfeited | $ / shares	27.11
Ending Balance | $ / shares	$ 28.51
Maximum | Performance shares
Number of share
Ending Balance	2
Minimum [Member] | Performance shares
Number of share
Ending Balance	0

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, Shares Authorized	5,000,000
Preferred Stock, Shares Issued	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares	322,546	353,446
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 49.64	$ 49.13
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 49.64
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	4 years 3 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	4 years 3 months 18 days	5 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number	322,546
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period	(13,180)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price	$ 51.30
Shares Available For Grant	1,100,000
Share based compensation awards vesting period	3 years
Unrecognized compensation costs	$ 10,500,000
Preferred Stock, Par or Stated Value Per Share	$ 0.0001
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	17,720
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of award	1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of award	3 years
Equity Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	ten years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs, expected weighted-average period to be recognized (in years)	1 year 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number	6,380
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs, expected weighted-average period to be recognized (in years)	1 year 10 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number	107,501
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 1,100,000	2,900,000	$ 300,000
Deferred compensation share-based arrangements, liability, classified, noncurrent	$ (4,300,000)	(5,200,000)
Deferred Compensation Share-based Arrangements, Liability, Current		$ 2,300,000

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies Additional Information (Details)	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Firm price contracts, percentage of expected average monthly natural gas and electricity needs covered	9.00%

Segment Information - Reportabl

Segment Information - Reportable Segments Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 1,772.6	$ 1,868.6	$ 1,761.5
Income from operations	12	158.1	45.4
Other operating charges, net	(57.7)	(14)	(6.3)
Depreciation and amortization	105	111	115.6
Total assets	1,690.1	1,800.4	1,877.7
Capital expenditures	$ 38.4	$ 39.6	140.1
Segment Reporting, Disclosure of Major Customers	11	14
Reportable Segments Information	Pulp and Paperboard Our Pulp and Paperboard segment manufactures and markets solid bleached sulfate paperboard for the high-end segment of the packaging industry as well as offers custom sheeting, slitting and cutting of paperboard. Consumer Products Our Consumer Products segment manufactures and sells a complete line of at-home tissue products, or retail products, and minor amounts of parent rolls. The table below presents information about our reportable segments: (In millions) 2021 2020 2019 Segment net sales: Pulp and Paperboard $ 946.0 $ 877.1 $ 885.4 Consumer Products 835.0 1,018.5 902.5 Eliminations (8.4) (27.0) (26.3) Total segment net sales $ 1,772.6 $ 1,868.6 $ 1,761.5 Operating income (loss): Pulp and Paperboard $ 125.7 $ 124.5 $ 114.6 Consumer Products 4.0 110.6 (5.9) Corporate and eliminations (60.1) (63.0) (57.0) Other operating charges, net (57.7) (14.0) (6.3) Income from operations $ 12.0 $ 158.1 $ 45.4 Depreciation and amortization: Pulp and Paperboard $ 35.7 $ 36.7 $ 39.4 Consumer Products 64.9 68.5 69.7 Corporate 4.4 5.8 6.5 Total depreciation and amortization $ 105.0 $ 111.0 $ 115.6 Assets: Pulp and Paperboard $ 621.1 $ 614.9 $ 652.2 Consumer Products 986.2 1,079.9 1,147.1 Corporate 82.8 105.6 78.4 Total assets $ 1,690.1 $ 1,800.4 $ 1,877.7 Capital expenditures: Pulp and Paperboard $ 20.7 $ 20.4 $ 16.7 Consumer Products 17.3 17.4 114.9 38.0 37.8 131.6 Corporate 0.4 1.9 8.5 Total capital expenditures $ 38.4 $ 39.6 $ 140.1
Operating Segments
Segment Reporting Information [Line Items]
Capital expenditures	$ 38	$ 37.8	131.6
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net sales	(8.4)	(27)	(26.3)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Income from operations	(60.1)	(63)	(57)
Pulp And Paperboard [Member]
Segment Reporting Information [Line Items]
Net sales	946	877.1	885.4
Income from operations	125.7	124.5	114.6
Depreciation and amortization	35.7	36.7	39.4
Total assets	621.1	614.9	652.2
Capital expenditures	20.7	20.4	16.7
Consumer Products
Segment Reporting Information [Line Items]
Net sales	835	1,018.5	902.5
Income from operations	4	110.6	(5.9)
Depreciation and amortization	64.9	68.5	69.7
Total assets	986.2	1,079.9	1,147.1
Capital expenditures	17.3	17.4	114.9
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization	4.4	5.8	6.5
Total assets	82.8	105.6	78.4
Capital expenditures	0.4	1.9	8.5
United States
Segment Reporting Information [Line Items]
Net sales	1,670.2	1,766.2	1,686.2
Non-US [Member]
Segment Reporting Information [Line Items]
Net sales	102.4	102.4	75.3
Paperboard [Member]
Segment Reporting Information [Line Items]
Net sales	894.9	828	846.3
Retail tissue member [Member]
Segment Reporting Information [Line Items]
Net sales	797.9	975.7	845.6
Non-retail tissue [Member]
Segment Reporting Information [Line Items]
Net sales	36.7	41.1	56.5
Pulp And Paperboard [Member]
Segment Reporting Information [Line Items]
Net sales	34.8	41.4	31.2
Other [Member]
Segment Reporting Information [Line Items]
Net sales	$ 16.6	$ 9.2	$ 8.4