Rayonier Advanced Materials (RYAM) 10-Q 7 Nov 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 28, 2019	Nov. 04, 2019
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 28, 2019
Document Transition Report	false
Entity File Number	001-36285
Entity Registrant Name	RAYONIER ADVANCED MATERIALS INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-4559529
Entity Address, Address Line One	1301 RIVERPLACE BOULEVARD
Entity Address, Address Line Two	SUITE 2300
Entity Address, City or Town	JACKSONVILLE
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	32207
City Area Code	904
Local Phone Number	357-4600
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	RYAM
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		63,210,809
Entity Central Index Key	0001597672
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Statements of Inco

Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Income Statement [Abstract]
Net Sales	$ 416,129	$ 501,298	$ 1,307,422	$ 1,475,649
Cost of Sales	(399,510)	(419,001)	(1,265,217)	(1,236,761)
Gross Margin	16,619	82,297	42,205	238,888
Selling, general and administrative expenses	(23,416)	(30,596)	(72,026)	(77,669)
Duties	(4,542)	(816)	(16,062)	(20,680)
Other operating income (expense), net	2,775	(7,945)	(5,600)	(9,507)
Operating Income (Loss)	(8,564)	42,940	(51,483)	131,032
Interest expense	(14,580)	(13,831)	(42,598)	(41,839)
Interest income and other, net	3,439	(394)	3,341	5,013
Other components of pension and OPEB, excluding service costs	846	2,066	3,313	6,270
Adjustment to gain on bargain purchase	0	6,175	0	20,836
Income (Loss) From Continuing Operations Before Income Taxes	(18,859)	36,956	(87,427)	121,312
Income tax (expense) benefit (Note 16)	4,506	(6,989)	25,813	(28,960)
Income (Loss) from Continuing Operations	(14,353)	29,967	(61,614)	92,352
Income (loss) from discontinued operations, net of taxes (Note 2)	137	7,969	10,431	23,429
Net Income (Loss) Attributable to the Company	(14,216)	37,936	(51,183)	115,781
Mandatory convertible stock dividends	(1,777)	(3,441)	(8,582)	(10,284)
Net Income (Loss) Available to Common Stockholders	$ (15,993)	$ 34,495	$ (59,765)	$ 105,497
Basic Earnings Per Common Share (Note 13)
Income (loss) from continuing operations (in dollars per share)	$ (0.29)	$ 0.52	$ (1.36)	$ 1.61
Income from discontinued operations (in dollars per share)	0	0.16	0.20	0.46
Net income per common share-basic (in dollars per share)	(0.29)	0.68	(1.16)	2.07
Diluted Earnings Per Common Share (Note 13)
Income (loss) from continuing operations (in dollars per share)	(0.29)	0.47	(1.36)	1.45
Income from discontinued operations (in dollars per share)	0	0.13	0.20	0.37
Net income per common share-diluted (in dollars per share)	$ (0.29)	$ 0.60	$ (1.16)	$ 1.82
Other Comprehensive Income (Loss), net of tax (Note 11):
Foreign currency translation adjustments	$ (11,210)	$ (2,014)	$ (12,905)	$ (10,265)
Unrealized gain (loss) on derivative instruments	(3,283)	6,126	7,982	(936)
Net gain from pension and postretirement plans	2,365	2,398	6,122	7,193
Total other comprehensive income	(12,128)	6,510	1,199	(4,008)
Comprehensive Income (Loss)	$ (26,344)	$ 44,446	$ (49,984)	$ 111,773

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 62,762	$ 108,966
Accounts receivable, net (Note 3)	162,107	199,284
Inventory (Note 4)	291,425	304,028
Prepaid and other current assets	71,828	61,314
Assets of discontinued operations-held for sale (Note 2)	84,298	42,500
Total current assets	672,420	716,092
Property, Plant and Equipment (net of accumulated depreciation of $1,470,506 at September 28, 2019 and $1,385,837 at December 31, 2018)	1,327,052	1,363,557
Deferred Tax Assets	393,224	375,471
Intangible Assets, net	47,203	52,460
Other Assets	156,795	120,299
Assets of discontinued operations-held for sale (Note 2)	0	51,207
Total Assets	2,596,694	2,679,086
Current Liabilities
Accounts payable	144,677	181,705
Accrued and other current liabilities (Note 6)	116,718	146,155
Current maturities of long-term debt (Note 7)	21,357	15,012
Current environmental liabilities (Note 8)	11,445	11,310
Liabilities of discontinued operations-held for sale (Note 2)	18,774	16,236
Total current liabilities	312,971	370,418
Long-Term Debt (Note 7)	1,212,432	1,173,157
Long-Term Environmental Liabilities (Note 8)	148,054	149,344
Pension and Other Postretirement Benefits	231,388	233,658
Deferred Tax Liabilities	23,842	28,016
Other Long-Term Liabilities	28,999	12,074
Liabilities of discontinued operations-held for sale (Note 2)	0	5,548
Commitments and Contingencies
Stockholders’ Equity
Preferred stock, 0 and 10,000,000 shares authorized at $0.00 and $0.01 par value, 0 and 1,725,000 issued and outstanding as of September 28, 2019 and December 31, 2018, respectively, aggregate liquidation preference $0 and $172,500	0	17
Common stock, 140,000,000 shares authorized at $0.01 par value, 63,210,811 and 49,291,130 issued and outstanding, as of September 28, 2019 and December 31, 2018, respectively	632	493
Additional paid-in capital	399,234	399,490
Retained earnings	393,640	462,568
Accumulated other comprehensive income (loss) (Note 11)	(154,498)	(155,697)
Total Stockholders’ Equity	639,008	706,871
Total Liabilities and Stockholders’ Equity	$ 2,596,694	$ 2,679,086

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Accumulated deprecation	$ 1,470,506	$ 1,385,837
Preferred stock, shares authorized (in shares)	0	10,000,000
Preferred stock, par value (in dollars per share)	$ 0	$ 0.01
Preferred stock, shares issued (in shares)	0	1,725,000
Preferred stock, shares outstanding (in shares)	0	1,725,000
Preferred stock, aggregate liquidation preference	$ 0	$ 172,500
Common stock, shares authorized (in shares)	140,000,000	140,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	63,210,811	49,291,130
Common stock, shares outstanding (in shares)	63,210,811	49,291,130

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018
Operating Activities
Net income (loss)	$ (51,183)	$ 115,781
Loss (income) from discontinued operations	(10,431)	(23,429)
Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities:
Depreciation and amortization	111,695	105,703
Stock-based incentive compensation expense	5,696	10,146
Amortization of capitalized debt costs, discount and premium	429	942
Deferred income tax	(22,847)	30,748
Gain on bargain purchase	0	(19,458)
Net periodic benefit cost of pension and postretirement plans	5,412	4,313
Loss (gain) from foreign currency	4,180	(6,341)
Other	(31)	5,318
Changes in operating assets and liabilities:
Receivables	35,232	(9,921)
Inventories	11,308	(34,189)
Accounts payable	(35,217)	(4,887)
Accrued liabilities	(8,612)	5,582
All other operating activities	(32,459)	(25,730)
Contributions to pension and other postretirement benefit plans	(6,004)	(8,000)
Expenditures for environmental liabilities	(2,547)	(5,549)
Cash provided by operating activities-continuing operations	4,621	141,029
Cash provided by operating activities-discontinued operations	19,437	19,333
Cash Provided by Operating Activities	24,058	160,362
Investing Activities
Proceeds from sale of resin operations	0	16,143
Capital expenditures	(80,806)	(90,094)
Cash used for investing activities-continuing operations	(80,806)	(73,951)
Cash used for investing activities-discontinued operations	(2,606)	(2,492)
Cash Used for Investing Activities	(83,412)	(76,443)
Financing Activities
Revolving credit facility and other borrowings	88,627	0
Repayments of revolving credit facility	(36,000)	0
Repayment of debt	(9,929)	(34,141)
Dividends paid on common stock	(8,569)	(11,030)
Dividends paid on preferred stock	(10,350)	(10,350)
Proceeds from the issuance of common stock	0	452
Common stock repurchased	(5,830)	(17,784)
Cash provided by (used for) financing activities-continuing operations	17,949	(72,853)
Cash provided by (used for) financing activities-discontinued operations	0	0
Cash Provided by (Used for) Financing Activities	17,949	(72,853)
Cash and Cash Equivalents
Change in cash and cash equivalents	(41,405)	11,066
Net effect of foreign exchange on cash and cash equivalents	(4,799)	(1,325)
Balance, beginning of year	108,966	96,235
Balance, end of period	$ 62,762	$ 105,976

Basis of Presentation and New A

Basis of Presentation and New Accounting Pronouncements	9 Months Ended
	Sep. 28, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and New Accounting Pronouncements	Basis of Presentation and New Accounting Pronouncements Basis of Presentation The unaudited consolidated financial statements and notes thereto of Rayonier Advanced Materials Inc. (the “Company”) have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) for interim financial information and in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, these financial statements and notes reflect all adjustments (all of which are normal recurring adjustments) necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented. These statements and notes should be read in conjunction with the financial statements and supplementary data included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 , as filed with the SEC on March 1, 2019. The Company has reclassified certain prior year amounts to conform to the current year’s presentation for discontinued operations to reflect the sale of its Matane high-yield pulp operations. Unless otherwise stated, information in these notes to consolidated financial statements relates to continuing operations. Certain of our operations have been presented as discontinued operations. The Company presents businesses that represent components as discontinued operations when they meet the criteria for held for sale or are sold, and their disposal represents a strategic shift that has, or will have, a major effect on our operations and financial results. See Note 2 — Discontinued Operations for additional information. Liquidity Cash flows from operations, primarily driven by operating results, have historically been the Company’s primary source of liquidity and capital resources. As a result of the significant decreases in the market prices for commodity products, primarily viscose, fluff, high-yield pulp, lumber, paperboard and newsprint, over the last nine months, the financial results of the Company have declined requiring it to amend the financial covenants under its Senior Secured Credit Facilities. On September 30, 2019, the Company entered into an amendment of its Senior Secured Credit Facilities reducing the restrictions of its first lien secured net leverage ratio and the interest coverage ratio tests through the year ended December 31, 2021. Under the amended agreement, the Company is in compliance with the financial covenants as of September 28, 2019 and, as such, management believes that there is no longer substantial doubt of the Company’s ability to continue as a going concern. See Note 7 — Debt and Finance Leases for additional information. Recently Adopted Accounting Pronouncements Leases The Company adopted Accounting Standards Update 2016-02, Leases , as amended, as of January 1, 2019. The standard requires the recognition of right of use (“ROU”) assets and lease liabilities to be reported on the balance sheet but did not change the manner in which expenses are recorded in the income statement. The Company has adopted the lease guidance using the cumulative effect adjustment approach, which requires prospective application at the adoption date and elected certain practical expedients permitted under the transition guidance. The practical expedients allow for the carry forward of the historical lease classification of existing leases and eliminates the need to reassess any lease classification of expired leases and initial direct costs. The Company also elected the short-term lease practical expedient. The Company does not record ROU assets or lease liabilities for short-term leases. In addition, the Company utilized the portfolio approach to group leases with similar characteristics and did not use hindsight to determine the lease term. For leases that include other costs, such as maintenance and other services, in addition to lease cost, the Company is separating lease and non-lease components when determining the ROU assets and lease liabilities. Adoption of the new standard resulted in the recording of a ROU lease assets and lease liability of $10 million and $11 million , respectively, and the reversal of deferred rent liability balances. See Note 5 — Leases for additional information. Subsequent Events Events and transactions subsequent to the balance sheet date have been evaluated for potential recognition and disclosure through November 7, 2019 , the date these financial statements were available to be issued. The following subsequent events warranting disclosure were identified: In October 2019, the Company entered into an agreement to settle certain pension liabilities. The settlement is estimated to result in a non-cash loss of approximately $ 15 to $ 20 million in the fourth quarter. On November 4, 2019, the Company completed the sale of its Matane plant and received net proceeds of approximately $ 150 million , subject to working capital adjustments. Approximately $ 100 million

Discontinued Operations

Discontinued Operations	9 Months Ended
	Sep. 28, 2019
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations On August 1, 2019, the Company announced it entered into an agreement to sell its Matane, Quebec pulp mill to Sappi Limited, a global diversified wood fiber company, for a gross purchase price of approximately $ 175 million . The mill produces approximately 270,000 metric tons of high-yield pulp and sells the product globally for use in manufacturing paperboard, packaging, and printing and writing paper. The Matane mill was acquired by the Company as part of its acquisition of Tembec Inc. in November 2017 and was previously reported as part of the Company’s Pulp segment. As of September 28, 2019 , the assets and liabilities are classified as current in the Company’s consolidated balance sheet as the transaction is expected to close within one year. The following table presents the major classes of assets and liabilities of discontinued operations that are classified as held for sale: September 28, 2019 December 31, 2018 Accounts receivable, net $ 15,355 $ 23,093 Inventory 15,770 17,349 Prepaid and other current assets 811 2,058 Total current assets 31,936 42,500 Property, plant and equipment, net 18,437 17,482 Deferred tax assets 31,486 31,486 Other assets 2,439 2,239 Total assets $ 84,298 $ 93,707 Accounts payable $ 6,415 $ 11,035 Accrued and other current liabilities 5,946 3,786 Other current liabilities 752 1,415 Total current liabilities 13,113 16,236 Other long-term liabilities 5,661 5,548 Total liabilities $ 18,774 $ 21,784 Income (loss) from discontinued operations is comprised of the following: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Revenues $ 34,781 $ 43,041 $ 114,085 $ 132,401 Cost of sales (31,271 ) (29,425 ) (93,567 ) (93,546 ) Gross margin 3,510 13,616 20,518 38,855 Selling, general and administrative expenses and other (2,001 ) (406 ) (2,855 ) (1,258 ) Operating income (loss) 1,509 13,210 17,663 37,597 Interest expense (a) (1,160 ) (1,142 ) (3,516 ) (3,298 ) Other non-operating income 87 93 262 284 Income (Loss) Before Income Taxes 436 12,161 14,409 34,583 Income tax benefit (expense) (299 ) (4,192 ) (3,978 ) (11,154 ) Net Income (loss) $ 137 $ 7,969 $ 10,431 $ 23,429 (a) The Company is required to pay $100 million of debt from proceeds received from the sale of Matane. Interest expense has been allocated to discontinued operations using the weighted-average interest rates in effect for each period presented based on the proportionate amounts required to be repaid. Other discontinued operations information is as follows: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Depreciation and amortization $ 230 $ 630 $ 1,590 $ 1,818 Capital expenditures $ 1,531 $ 712 $ 2,606 $ 2,492

Accounts Receivable, Net

Accounts Receivable, Net	9 Months Ended
	Sep. 28, 2019
Receivables [Abstract]
Accounts Receivable, Net	Accounts Receivable, Net The Company’s accounts receivable included the following: September 28, 2019 December 31, 2018 Accounts receivable, trade $ 124,958 $ 146,056 Accounts receivable, other (a) 37,796 53,787 Allowance for doubtful accounts (647 ) (559 ) Total accounts receivable, net $ 162,107 $ 199,284 (a) Accounts receivable, other consists primarily of value added/consumption taxes, grants receivable and accrued billings due from government agencies.

Inventory

Inventory	9 Months Ended
	Sep. 28, 2019
Inventory Disclosure [Abstract]
Inventory	Inventory The Company’s inventory included the following: September 28, 2019 December 31, 2018 Finished goods $ 184,771 $ 203,350 Work-in-progress 19,837 21,478 Raw materials 77,057 68,656 Manufacturing and maintenance supplies 9,760 10,544 Total inventory $ 291,425 $ 304,028

Leases

Leases	9 Months Ended
	Sep. 28, 2019
Leases [Abstract]
Leases	Leases The Company accounts for leases in accordance with ASC Topic 842, Leases, which was adopted on January 1, 2019. See Note 1 — Basis of Presentation and New Accounting Pronouncements , for additional information on the adoption. The Company’s operating and finance leases are primarily for corporate offices, warehouse space, rail cars and equipment. As of September 28, 2019 , the Company’s leases have remaining lease terms of 1 year to 9 years with standard renewal and termination options available at the Company’s discretion. Certain equipment leases have purchase options at the end of the term of the lease, which are not included in the ROU assets as it is not reasonably certain that the Company will exercise such options. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company uses its incremental borrowing rate in determining the present value of lease payments unless the lease provides an implicit or explicit interest rate. The weighted average discount rate used in determining the operating lease ROU assets and liabilities as of September 28, 2019 was 6.0 percent . The weighted average discount rate used in determining the finance lease ROU assets and liabilities as of September 28, 2019 was 7.0 percent . The Company’s operating and finance lease cost is as follows: Three Months Ended Nine Months Ended September 28, 2019 September 28, 2019 Operating Leases Operating lease expense $ 1,715 $ 4,322 Finance Leases Amortization of ROU assets 77 228 Interest 52 159 Total $ 1,844 $ 4,709 As of September 28, 2019 , the weighted average remaining lease term is 4.6 years and 7.2 years for operating leases and financing leases, respectively. Cash provided by operating activities includes approximately $4 million from operating lease payments made during the nine months ended September 28, 2019 . Finance lease cash flows were immaterial during the nine months ended September 28, 2019 . The Company’s finance leases are included as debt and the maturities for the remainder of 2019 and the next four years and thereafter are included in Note 7 — Debt and Finance Leases . The Company’s balance sheet includes the following operating lease assets and liabilities: Balance Sheet Classification September 28, 2019 Right-of-use assets Other assets $ 22,516 Lease liabilities, current Accrued and other current liabilities $ 5,276 Lease liabilities, non-current Other non-current liabilities $ 17,935 As of September 28, 2019 , operating lease maturities for the remainder of 2019 through 2023 and thereafter are as follows: September 28, 2019 Remainder of 2019 $ 1,664 2020 6,323 2021 5,639 2022 5,414 2023 4,605 Thereafter 3,056 Total minimum lease payments $ 26,701 Less: imputed interest (3,490 ) Present value of future minimum lease payments $ 23,211
Leases	Leases The Company accounts for leases in accordance with ASC Topic 842, Leases, which was adopted on January 1, 2019. See Note 1 — Basis of Presentation and New Accounting Pronouncements , for additional information on the adoption. The Company’s operating and finance leases are primarily for corporate offices, warehouse space, rail cars and equipment. As of September 28, 2019 , the Company’s leases have remaining lease terms of 1 year to 9 years with standard renewal and termination options available at the Company’s discretion. Certain equipment leases have purchase options at the end of the term of the lease, which are not included in the ROU assets as it is not reasonably certain that the Company will exercise such options. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company uses its incremental borrowing rate in determining the present value of lease payments unless the lease provides an implicit or explicit interest rate. The weighted average discount rate used in determining the operating lease ROU assets and liabilities as of September 28, 2019 was 6.0 percent . The weighted average discount rate used in determining the finance lease ROU assets and liabilities as of September 28, 2019 was 7.0 percent . The Company’s operating and finance lease cost is as follows: Three Months Ended Nine Months Ended September 28, 2019 September 28, 2019 Operating Leases Operating lease expense $ 1,715 $ 4,322 Finance Leases Amortization of ROU assets 77 228 Interest 52 159 Total $ 1,844 $ 4,709 As of September 28, 2019 , the weighted average remaining lease term is 4.6 years and 7.2 years for operating leases and financing leases, respectively. Cash provided by operating activities includes approximately $4 million from operating lease payments made during the nine months ended September 28, 2019 . Finance lease cash flows were immaterial during the nine months ended September 28, 2019 . The Company’s finance leases are included as debt and the maturities for the remainder of 2019 and the next four years and thereafter are included in Note 7 — Debt and Finance Leases . The Company’s balance sheet includes the following operating lease assets and liabilities: Balance Sheet Classification September 28, 2019 Right-of-use assets Other assets $ 22,516 Lease liabilities, current Accrued and other current liabilities $ 5,276 Lease liabilities, non-current Other non-current liabilities $ 17,935 As of September 28, 2019 , operating lease maturities for the remainder of 2019 through 2023 and thereafter are as follows: September 28, 2019 Remainder of 2019 $ 1,664 2020 6,323 2021 5,639 2022 5,414 2023 4,605 Thereafter 3,056 Total minimum lease payments $ 26,701 Less: imputed interest (3,490 ) Present value of future minimum lease payments $ 23,211

Accrued and Other Current Liabi

Accrued and Other Current Liabilities	9 Months Ended
	Sep. 28, 2019
Payables and Accruals [Abstract]
Accrued and Other Current Liabilities	Accrued and Other Current Liabilities The Company’s accrued and other current liabilities included the following: September 28, 2019 December 31, 2018 Accrued customer incentives and prepayments $ 34,556 $ 41,734 Accrued payroll and benefits 24,461 29,567 Accrued interest 9,775 3,170 Derivative instruments 2,930 16,767 Accrued property and other taxes 14,814 10,663 Other current liabilities 30,182 44,254 Total accrued and other current liabilities $ 116,718 $ 146,155

Debt and Finance Leases

Debt and Finance Leases	9 Months Ended
	Sep. 28, 2019
Debt Disclosure [Abstract]
Debt and Finance Leases	Debt and Finance Leases The Company’s debt and finance leases included the following: September 28, 2019 December 31, 2018 U.S. Revolver of $100 million maturing in November 2022, $41 available, bearing interest at LIBOR plus 2.25%, interest of 4.30% at September 28, 2019 $ 50,000 $ — Multi-currency Revolver of $150 million maturing in November 2022, $126 available, bearing interest at LIBOR plus 2.00% at September 28, 2019 — — Term A-1 Loan Facility borrowings maturing through November 2022 bearing interest at LIBOR plus 2.25%, interest rate of 4.30% at September 28, 2019 160,000 160,000 Term A-2 Loan Facility borrowings maturing through November 2024 bearing interest at LIBOR plus 2.50% (after consideration of 0.60% patronage benefit), interest rate of 4.55% at September 28, 2019 438,875 438,875 Senior Notes due 2024 at a fixed interest rate of 5.50% 495,647 495,647 Canadian dollar, fixed interest rate term loans with rates ranging from 5.50% to 6.86% and maturity dates ranging from March 2020 through April 2028, secured by certain assets of the Temiscaming plant 85,501 91,304 Other loans 4,891 3,777 Finance lease obligation 2,896 3,124 Total debt principal payments due 1,237,810 1,192,727 Less: Debt premium, original issue discount and issuance costs, net (4,021 ) (4,558 ) Total debt 1,233,789 1,188,169 Less: Current maturities of long-term debt (21,357 ) (15,012 ) Long-term debt $ 1,212,432 $ 1,173,157 As of September 28, 2019 , debt and finance lease payments due during the remainder of 2019 and the next four years and thereafter are as follows: Finance Lease Payments Debt Principal Payments Remaining 2019 $ 129 $ 3,342 2020 515 23,124 2021 515 12,568 2022 515 239,779 2023 515 10,674 Thereafter 1,502 945,427 Total principal payments $ 3,691 $ 1,234,914 Less: Imputed interest (795 ) Present value minimum finance lease payments $ 2,896 On September 30, 2019, the Company entered into an amendment (the “Amendment”) of its Senior Secured Credit Agreement under which, the lenders have agreed to make the Total Net Senior First Lien Secured Leverage Ratio and Interest Coverage Ratio tests less restrictive through the year ended December 31, 2021. The Amendment also increases the interest rate margin by a maximum of 1.25 percent , subject to the operation of a pricing grid which conversely provides for reduced rate margins when the Company’s leverage ratios improve. In addition, the Amendment has additional collateral requirements on certain Company assets as well as the maintenance of available amounts on its revolving credit facility to reflect the seasonality of the business.

Environmental Liabilities

Environmental Liabilities	9 Months Ended
	Sep. 28, 2019
Environmental Remediation Obligations [Abstract]
Environmental Liabilities	Environmental Liabilities An analysis of liabilities for the nine months ended September 28, 2019 is as follows: Balance, December 31, 2018 $ 160,654 Increase in liabilities 928 Payments (2,547 ) Foreign currency adjustments 464 Balance, September 28, 2019 159,499 Less: Current portion (11,445 ) Long-term environmental liabilities $ 148,054 In addition to the estimated liabilities, the Company is subject to the risk of reasonably possible additional liabilities in excess of the established reserves due to potential changes in circumstances and future events, including, without limitation, changes to current laws and regulations; changes in governmental agency personnel, direction, philosophy and/or enforcement policies; developments in remediation technologies; increases in the cost of remediation, operation, maintenance and monitoring of its environmental liability sites; changes in the volume, nature or extent of contamination to be remediated or monitoring to be undertaken; the outcome of negotiations with governmental agencies and non-governmental parties; and changes in accounting rules or interpretations. Based on information available as of September 28, 2019 , the Company estimates this exposure could range up to approximately $69 million , although no assurances can be given that this amount will not be exceeded given the factors described above. These potential additional costs are attributable to several sites and other applicable liabilities. Further, this estimate excludes reasonably possible liabilities which are not currently estimable primarily due to the factors discussed above. Subject to the previous paragraph, the Company believes established liabilities are sufficient for probable costs expected to be incurred over the next 20 years with respect to its environmental liabilities. However, no assurances are given they will be sufficient for the reasons described above, and additional liabilities could have a material adverse effect on the Company’s financial position, results of operations and cash flows.

Derivatives Instruments

Derivatives Instruments	9 Months Ended
	Sep. 28, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives Instruments	Derivative Instruments The Company’s earnings and cash flows are subject to fluctuations due to changes in interest rates and foreign currency exchange rates. The Company allows for the use of derivative financial instruments to manage interest rate and foreign currency exchange rate exposure but does not allow derivatives to be used for speculative purposes. All derivative instruments are recognized on the consolidated balance sheets at their fair value and are either designated as a hedge of a forecasted transaction or undesignated. Changes in the fair value of a derivative designated as a hedge are recorded in other comprehensive income until earnings are affected by the hedged transaction and are then reported in current earnings. Changes in the fair value of undesignated derivative instruments and the ineffective portion of designated derivative instruments are reported in current earnings. Interest Rate Risk The Company’s primary debt obligations utilize variable-rate LIBOR, exposing the Company to variability in interest payments due to changes in interest rates. The Company entered into interest rate swap agreements to reduce the volatility of financing costs, achieve a desired proportion of fixed-rate versus floating-rate debt and to hedge the variability in cash flows attributable to interest rate risks caused by changes in the LIBOR benchmark. The Company designated the swaps as cash flow hedges and is assessing their effectiveness using the hypothetical derivative method in conjunction with regression. Effective gains and losses, deferred to accumulated other comprehensive income (loss) (“AOCI”), are reclassified into earnings over the life of the associated hedge. Foreign Currency Exchange Rate Risk Foreign currency fluctuations affect investments in foreign subsidiaries and foreign currency cash flows related to third party purchases, product shipments, and foreign-denominated debt. The Company is also exposed to the translation of foreign currency earnings to the U.S. dollar. Management uses foreign currency forward contracts to selectively hedge its foreign currency cash flow exposure and manage risk associated with changes in currency exchange rates. The Company’s principal foreign currency exposure is to the Canadian dollar, and to a lesser extent, the euro. The notional amounts of outstanding derivative instruments as of September 28, 2019 and December 31, 2018 are presented below. September 28, 2019 December 31, 2018 Interest rate swaps (a) $ 200,000 $ 200,000 Foreign exchange forward contracts (b) $ 359,648 $ 388,930 Foreign exchange forward contracts (c) $ 95,051 $ 125,979 (a) Maturity date of December 2020 (b) Various maturity dates through September 2020 (c) Various maturity dates in 2020, 2022 and 2028 The fair values of derivative instruments included in the consolidated balance sheet as of September 28, 2019 and December 31, 2018 are provided in the below table. See Note 10 — Fair Value Measurements for additional information related to the Company’s derivatives. Balance Sheet Location September 28, 2019 December 31, 2018 Assets Derivatives designated as hedging instruments: Interest rate swaps Other current assets $ — $ 1,194 Interest rate swaps Other assets — 937 Foreign exchange forward contracts Other current assets 914 — Derivatives not designated as hedging instruments: Foreign exchange forward contracts Other current assets 35 7 Liabilities Derivatives designated as hedging instruments: Interest rate swaps Other current liabilities (557 ) — Interest rate swaps Other non-current liabilities (277 ) — Foreign exchange forward contracts Other current liabilities (2,373 ) (16,408 ) Foreign exchange forward contracts Other non-current liabilities (2,044 ) (3,105 ) Derivatives not designated as hedging instruments: Foreign exchange forward contracts Other current liabilities — (360 ) Total derivatives $ (4,302 ) $ (17,735 ) The effects of derivatives designated as hedging instruments, the related changes in AOCI and the gains and losses in income are presented below. Three Months Ended September 28, 2019 Derivatives Designated as Hedging Instruments Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ (64 ) $ 172 Interest expense Foreign exchange forward contracts $ (5,940 ) $ (76 ) Other operating expense, net Foreign exchange forward contracts $ 1,256 $ (1,256 ) Cost of sales Foreign exchange forward contracts $ (2,000 ) $ (1,290 ) Interest income and other, net Three Months Ended September 29, 2018 Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ 530 $ 74 Interest expense Foreign exchange forward contracts $ 5,002 $ 60 Other operating expense, net Foreign exchange forward contracts $ 1,399 $ (1,399 ) Cost of sales Foreign exchange forward contracts $ 1,570 $ 1,529 Interest income and other, net Nine Months Ended September 28, 2019 Derivatives Designated as Hedging Instruments Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ (2,237 ) $ 728 Interest expense Foreign exchange forward contracts $ (1,903 ) $ 600 Other operating expense, net Foreign exchange forward contracts $ 8,822 $ (8,822 ) Cost of sales Foreign exchange forward contracts $ 1,031 $ 2,077 Interest income and other, net Nine Months Ended September 29, 2018 Derivatives Designated as Hedging Instruments Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ 3,095 $ (112 ) Interest expense Foreign exchange forward contracts $ (5,406 ) $ 1,188 Other operating expense, net Foreign exchange forward contracts $ 1,466 $ (1,466 ) Cost of sales Foreign exchange forward contracts $ 181 $ 973 Interest income and other, net The effects of derivative instruments not designated as hedging instruments on the statement of income were as follows: Three Months Ended Nine Months Ended Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Foreign exchange forward contracts Other operating income (expense), net $ (137 ) $ (250 ) $ 193 $ (3,791 ) The after-tax amounts of unrealized gains (losses) in AOCI related to hedge derivatives are presented below: September 28, 2019 December 31, 2018 Interest rate cash flow hedges $ (650 ) $ 1,663 Foreign exchange cash flow hedges $ (2,990 ) $ (13,285 ) The amount of future reclassifications from AOCI will fluctuate with movements in the underlying markets.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 28, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following table presents the carrying amount, estimated fair values and categorization under the fair value hierarchy for financial instruments held by the Company at September 28, 2019 and December 31, 2018 , using market information and what management believes to be appropriate valuation methodologies: September 28, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value Assets: Level 1 Level 2 Level 1 Level 2 Cash and cash equivalents $ 62,762 $ 62,762 $ — $ 108,966 $ 108,966 $ — Interest rate swaps (a) — — — 2,131 — 2,131 Foreign currency forward contracts (a) 949 — 949 7 — 7 Liabilities (b): Interest rate swaps (a) 834 — 834 — — — Foreign currency forward contracts (a) 4,417 — 4,417 19,873 — 19,873 Fixed-rate long-term debt 580,068 — 448,325 585,824 — 541,267 Variable-rate long-term debt 650,824 — 653,766 599,221 — 602,652 (a) These items represent derivative instruments. (b) Liabilities exclude finance lease obligation. The Company uses the following methods and assumptions in estimating the fair value of its financial instruments: Cash and cash equivalents — The carrying amount is equal to fair market value. Derivative instruments — The fair value is calculated based on standard valuation models using quoted prices and market observable data of similar instruments. The interest rate derivatives are based on the LIBOR swap rate, which is observable at commonly quoted intervals for the full term of the swap and therefore is considered Level 2. The foreign currency derivatives are contracts to buy foreign currency at a fixed rate on a specified future date. The foreign exchange rate is observable for the full term of the swap and is therefore considered Level 2. See Note 9 — Derivative Instruments for additional information related to the derivative instruments. Debt — The fair value of fixed rate debt is based upon quoted market prices for debt with similar terms and maturities. The variable rate debt adjusts with changes in the market rate, therefore the carrying value approximates fair value.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 28, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The components of AOCI are as follows: Nine Months Ended September 28, 2019 September 29, 2018 Unrecognized components of employee benefit plans, net of tax: Balance, beginning of year $ (135,590 ) $ (81,638 ) Reclassifications to earnings: (a) Amortization of losses 7,829 8,907 Amortization of prior service costs 311 429 Amortization of negative plan amendment — (115 ) Income tax on reclassifications (1,804 ) (2,028 ) Foreign currency adjustments, net of tax of $75 (214 ) — Net comprehensive gain (loss) on employee benefit plans, net of tax 6,122 7,193 Balance, end of quarter (129,468 ) (74,445 ) Unrealized gain (loss) on derivative instruments, net of tax: Balance, beginning of year (11,622 ) 619 Other comprehensive income before reclassifications 5,713 (664 ) Income tax on other comprehensive income (1,446 ) 281 Reclassifications to earnings: (b) Interest rate contracts (728 ) 112 Foreign exchange contracts 6,145 (695 ) Income tax on reclassifications (1,702 ) 30 Net comprehensive gain (loss) on derivative instruments, net of tax 7,982 (936 ) Balance, end of quarter (3,640 ) (317 ) Foreign currency translation adjustments: Balance, beginning of year (8,485 ) 4,868 Foreign currency translation adjustment, net of tax of $0 and $0 (12,905 ) (10,265 ) Balance, end of quarter (21,390 ) (5,397 ) Accumulated other comprehensive income (loss), end of quarter $ (154,498 ) $ (80,159 ) (a) The AOCI components for defined benefit pension and post-retirement plans are included in the computation of net periodic benefit cost. See Note 15 — Employee Benefit Plans for additional information. (b) Reclassifications of interest rate contracts are recorded in interest expense. Reclassifications of foreign currency exchange contracts are recorded in cost of sales, other operating income or non-operating income as appropriate. See Note 9 — Derivative Instruments

Stockholder's Equity

Stockholder's Equity	9 Months Ended
	Sep. 28, 2019
Equity [Abstract]
Stockholder's Equity	Stockholders' Equity An analysis of stockholders’ equity is shown below (share amounts not in thousands): Common Stock Preferred Stock Additional Paid in Capital Retained Earnings Accumulated Other Comprehensive Loss Total Stockholders’ Equity Shares Par Value Shares Par Value For the nine months ended September 28, 2019 Balance, December 31, 2018 49,291,130 $ 493 1,725,000 $ 17 $ 399,490 $ 462,568 $ (155,697 ) $ 706,871 Net income (loss) — — — — — (51,183 ) — (51,183 ) Other comprehensive income (loss), net of tax — — — — — — 1,199 1,199 Preferred stock converted to common stock 13,361,678 133 (1,725,000 ) (17 ) (116 ) — — — Issuance of common stock under incentive stock plans 980,968 10 — — (10 ) — — — Stock-based compensation — — — — 5,696 — — 5,696 Repurchase of common stock (422,965 ) (4 ) — — (5,826 ) — — (5,830 ) Common stock dividends ($0.14 per share) — — — — — (7,395 ) — (7,395 ) Preferred stock dividends ($6.00 per share) — — — — — (10,350 ) — (10,350 ) Balance, September 28, 2019 63,210,811 $ 632 — $ — $ 399,234 $ 393,640 $ (154,498 ) $ 639,008 For the three months ended September 28, 2019 Balance, June 29, 2019 49,848,087 $ 498 1,725,000 $ 17 $ 397,115 $ 411,306 $ (142,370 ) $ 666,566 Net income (loss) — — — — — (14,216 ) — (14,216 ) Other comprehensive income (loss), net of tax — — — — — — (12,128 ) (12,128 ) Preferred stock converted to common stock 13,361,678 133 (1,725,000 ) (17 ) (116 ) — — — Issuance of common stock under incentive stock plans 953 — — — — — — — Stock-based compensation — — — — 2,240 — — 2,240 Repurchase of common shares 93 1 — — (5 ) — — (4 ) Common stock dividends — — — — — — — — Preferred stock dividends ($2.00 per share) — — — — — (3,450 ) — (3,450 ) Balance, September 28, 2019 63,210,811 $ 632 — $ — $ 399,234 $ 393,640 $ (154,498 ) $ 639,008 Common Stock Preferred Stock Additional Paid in Capital Retained Earnings Accumulated Other Comprehensive Loss Total Stockholders’ Equity Shares Par Value Shares Par Value For the nine months ended September 29, 2018 Balance, December 31, 2017 51,717,142 $ 517 1,725,000 $ 17 $ 392,353 $ 377,020 $ (76,151 ) $ 693,756 Net income (loss) — — — — — 115,781 — 115,781 Other comprehensive income (loss), net of tax — — — — — — (4,008 ) (4,008 ) Issuance of common stock under incentive stock plans 302,976 3 — — 449 — — 452 Stock-based compensation — — — — 10,146 — — 10,146 Repurchase of common stock (959,163 ) (9 ) — — (4,089 ) (13,686 ) — (17,784 ) Common stock dividends ($0.21 per share) — — — — — (11,137 ) — (11,137 ) Preferred stock dividends ($6.00 per share) — — — — — (10,350 ) — (10,350 ) Balance, September 29, 2018 51,060,955 $ 511 1,725,000 $ 17 $ 398,859 $ 457,628 $ (80,159 ) $ 776,856 For the three months ended September 29, 2018 Balance, June 30, 2018 51,217,595 $ 512 1,725,000 $ 17 $ 395,326 $ 429,753 $ (86,669 ) $ 738,939 Net income (loss) — — — — — 37,936 — 37,936 Other comprehensive income (loss), net of tax — — — — — — 6,510 6,510 Issuance of common stock under incentive stock plans 414 — — — 109 — — 109 Stock-based compensation — — — — 3,647 — — 3,647 Repurchase of common shares (157,054 ) (1 ) — — (223 ) (3,031 ) — (3,255 ) Common stock dividends ($0.07 per share) — — — — — (3,580 ) — (3,580 ) Preferred stock dividends ($2.00 per share) — — — — — (3,450 ) — (3,450 ) Balance, September 29, 2018 51,060,955 $ 511 1,725,000 $ 17 $ 398,859 $ 457,628 $ (80,159 ) $ 776,856 Series A Mandatory Convertible Preferred Stock On August 4, 2016, the Company completed a registered public offering of 1,725,000 shares of the Company’s 8.00% Series A Mandatory Convertible Preferred Stock (the “Preferred Stock”), at a public offering price of $100.00 per share. Net proceeds were $167 million after deducting underwriting discounts, commissions and expenses. Each share of the Preferred Stock automatically converted into shares of common stock on August 15, 2019. The number of shares of common stock issuable at conversion was determined based on the volume-weighted average price of the Company’s common stock over a 20 trading day period immediately prior to the mandatory conversion date (“Applicable Market Value”). The Applicable Market Value for our common stock was less than $12.91 , resulting in a conversion rate per share of 7.7459 . On August 15, 2019, the Company issued approximately 13.4 million shares of common stock at conversion. Dividends on the Preferred Stock were payable on a cumulative basis when declared by our Board of Directors. Preferred Stock dividends were paid at an annual rate of 8.00% of the liquidation preference of $100 per share. The final dividend was paid in cash on August 15, 2019. Common Stock Buyback On January 29, 2018, the Board of Directors authorized a share buyback program pursuant to which the Company may, from time to time, purchase shares of its common stock with an aggregate purchase price of up to $100 million . During the nine months ended September 28, 2019 , the Company did not repurchase any common shares under this buyback program. During the nine months ended September 29, 2018, the Company repurchased and retired 802,040 shares of common stock at an average price of $18.32 totaling approximately $15 million . As of September 28, 2019 , there was approximately $60 million of share repurchase authorization remaining under the program. The Company does not expect to utilize any further authorization in the near future.

Earnings Per Share of Common St

Earnings Per Share of Common Stock	9 Months Ended
	Sep. 28, 2019
Earnings Per Share [Abstract]
Earnings Per Share of Common Stock	Earnings Per Share of Common Stock The following table provides details of the calculations of basic and diluted earnings per share: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Income (loss) from continuing operations $ (14,353 ) $ 29,967 $ (61,614 ) $ 92,352 Preferred Stock dividends (1,777 ) (3,441 ) (8,582 ) (10,284 ) Income (loss) from continuing operations attributable to common stockholders (16,130 ) 26,526 (70,196 ) 82,068 Income (loss) from discontinued operations 137 7,969 10,431 23,429 Net income (loss) available for common stockholders $ (15,993 ) $ 34,495 $ (59,765 ) $ 105,497 Shares used for determining basic earnings per share of common stock 56,089,839 50,603,498 51,576,123 51,005,206 Dilutive effect of: Stock options — 3,620 — 4,127 Performance and restricted stock — 1,266,588 — 1,297,024 Preferred stock — 11,371,718 — 11,371,718 Shares used for determining diluted earnings per share of common stock 56,089,839 63,245,424 51,576,123 63,678,075 Basic per share amounts Income (loss) from continuing operations $ (0.29 ) $ 0.52 $ (1.36 ) $ 1.61 Income (loss) from discontinued operations — 0.16 0.20 0.46 Net income (loss) $ (0.29 ) $ 0.68 $ (1.16 ) $ 2.07 Diluted per share amounts Income (loss) from continuing operations $ (0.29 ) $ 0.47 $ (1.36 ) $ 1.45 Income (loss) from discontinued operations — 0.13 0.20 0.37 Net income (loss) $ (0.29 ) $ 0.60 $ (1.16 ) $ 1.82 Anti-dilutive instruments excluded from the computation of diluted earnings per share: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Stock options 225,934 263,184 225,934 263,184 Performance and restricted stock 688,029 11,687 502,888 398,576 Total anti-dilutive instruments 913,963 274,871 728,822 661,760

Incentive Stock Plans

Incentive Stock Plans	9 Months Ended
	Sep. 28, 2019
Share-based Payment Arrangement [Abstract]
Incentive Stock Plans	Incentive Stock Plans The Company’s total stock-based compensation cost for the nine months ended September 28, 2019 and September 29, 2018 was $6 million and $10 million , respectively. The Company made new grants of restricted stock units and performance-based stock units to certain employees during the first nine months of 2019 . The 2019 restricted stock unit awards vest over three years . The 2019 performance-based stock unit awards are measured against an internal return on invested capital target. Depending on performance against the target, the awards will pay out in common stock amounts between 0 and 200 percent of the performance-based stock units awarded. The total number of common stock awards granted will be adjusted up or down 25 percent , for certain participants, based on stock price performance relative to a peer group over the term of the plan, which could result in a final common stock issuance of 0 to 250 percent of the performance-based stock units awarded. In March 2019 , the performance-based share units granted in 2016 were settled at an average of 246 percent of the performance-based stock units awarded, resulting in the issuance of 923,211 shares of common stock. The following table summarizes the activity on the Company’s incentive stock awards for the nine months ended September 28, 2019 : Stock Options Restricted Stock and Stock Units Performance-Based Stock Units Options Weighted Average Exercise Price Awards Weighted Average Grant Date Fair Value Awards Weighted Average Grant Date Fair Value Outstanding at January 1, 2019 286,613 $ 34.23 917,098 $ 13.71 1,325,894 $ 14.69 Granted — — 395,777 11.99 400,921 14.98 Forfeited — — (9,533 ) 15.22 (7,501 ) 16.92 Exercised or settled — — (458,748 ) 10.64 (520,167 ) 7.80 Expired or cancelled (60,679 ) 26.82 — — — — Outstanding at September 28, 2019 225,934 $ 36.22 844,594 $ 14.56 1,199,147 $ 17.76

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 28, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Employee Benefit Plans	Employee Benefit Plans The Company has defined benefit pension and other postretirement plans covering certain union and non-union employees, primarily in the U.S., Canada and France. The defined benefit pension plans are closed to new participants. Employee defined benefit plan liabilities are calculated using actuarial estimates and management assumptions. These estimates are based on historical information, along with certain assumptions about future events. The components of net periodic benefit costs from defined benefit plans that have been recorded are shown in the following table: Pension Postretirement Three Months Ended Three Months Ended Components of Net Periodic Benefit Cost September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Service cost $ 2,411 $ 2,845 $ 456 $ 521 Interest cost 9,199 7,907 352 217 Expected return on plan assets (13,110 ) (13,302 ) — — Amortization of prior service cost 142 143 (38 ) — Amortization of losses 2,590 2,912 20 57 Amortization of negative plan amendment — — — — Total net periodic benefit cost $ 1,232 $ 505 $ 790 $ 795 Pension Postretirement Nine Months Ended Nine Months Ended Components of Net Periodic Benefit Cost September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Service cost $ 7,339 $ 8,605 $ 1,387 $ 1,978 Interest cost 27,949 23,885 1,072 675 Expected return on plan assets (40,475 ) (40,166 ) — — Amortization of prior service cost 426 429 (115 ) — Amortization of losses 7,768 8,735 61 172 Amortization of negative plan amendment — — — — Total net periodic benefit cost $ 3,007 $ 1,488 $ 2,405 $ 2,825 Service cost is included in cost of sales and selling, general and administrative expenses in the statements of income, as appropriate. Interest cost, expected return on plan assets, amortization of prior service cost, amortization of losses and amortization of negative plan amendment are included in Other components of pension and OPEB on the consolidated statement of income.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 28, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective tax rate for the three and nine months ended September 28, 2019 was a benefit of 24 percent and 30 percent , respectively, compared to an expense of 19 percent and 24 percent for the three and nine months ended September 29, 2018 , respectively. The current quarter and year-to-date September 28, 2019 effective rate differs from the federal statutory rate of 21 percent primarily due to different statutory rates on foreign operations. The effective tax rate benefit for the nine months ended September 28, 2019 is also impacted by excess tax deduction on vested stock compensation and tax credits recognized in the first and second quarters. There have been no material changes to the balance of unrecognized tax benefits reported at December 31, 2018 .

Segment Information

Segment Information	9 Months Ended
	Sep. 28, 2019
Segment Reporting [Abstract]
Segment Information	Segment Information The Company has currently divided its operations into five reportable segments: High Purity Cellulose, Forest Products, Pulp, Paper and Corporate. The Corporate operations consist primarily of senior management, accounting, information systems, human resources, treasury, tax and legal administrative functions that provide support services to the operating business units. The Company does not currently allocate the cost of maintaining these support functions to its operating units. The Company evaluates the performance of its segments based on operating income. Intersegment sales consist primarily of wood chips sales from Forest Products to High Purity Cellulose, Pulp and Paper segments and high-yield pulp sales from Pulp to Paper. Intersegment sales prices are at rates that approximate market. Net sales, disaggregated by product-line, was comprised of the following: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 High Purity Cellulose Cellulose Specialties $ 180,718 $ 217,538 $ 563,604 $ 625,864 Commodity Products 67,348 56,448 197,492 153,220 Other sales (a) 19,675 34,001 61,445 96,535 Total High Purity Cellulose 267,741 307,987 822,541 875,619 Forest Products Lumber 49,195 68,713 170,855 228,686 Other sales (b) 16,265 17,242 50,982 53,551 Total Forest Products 65,460 85,955 221,837 282,237 Pulp High-yield pulp 26,159 46,399 94,746 133,093 Paper Paperboard 53,818 50,675 151,161 149,100 Newsprint 19,948 27,698 66,613 88,958 Total Paper 73,766 78,373 217,774 238,058 Eliminations (16,997 ) (17,416 ) (49,476 ) (53,358 ) Total net sales $ 416,129 $ 501,298 $ 1,307,422 $ 1,475,649 (a) Other sales include sales of electricity, resins, lignin and other by-products to third-parties (b) Other sales include sales of logs, wood chips and other by-products to other segments and third-parties Operating income (loss) by segment was comprised of the following: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 High Purity Cellulose $ 6,745 $ 33,922 $ 10,665 $ 83,288 Forest Products (5,076 ) 7,986 (26,664 ) 35,158 Pulp (2,061 ) 12,825 2,700 37,373 Paper 165 13,648 1,136 23,465 Corporate (8,337 ) (25,441 ) (39,320 ) (48,252 ) Total operating income (loss) $ (8,564 ) $ 42,940 $ (51,483 ) $ 131,032 Identifiable assets by segment were as follows: September 28, 2019 December 31, 2018 High Purity Cellulose $ 1,585,594 $ 1,643,092 Forest Products 169,365 166,801 Pulp 33,284 41,087 Paper 223,302 240,427 Corporate 500,851 493,972 Assets Held for Sale 84,298 93,707 Total identifiable assets $ 2,596,694 $ 2,679,086

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 28, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments The following table includes the material changes to the contractual financial obligations presented in Note 20 — Commitments and Contingencies in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 , as filed with the SEC. The changes in the future minimum payments under these purchase obligations are presented as of September 28, 2019 . The amounts primarily consist of commitments for the purchase of natural gas, steam energy and electricity contracts. The payment amounts are estimates and may vary based on changes in actual price and volumes terms. Subsequent to the sale of the Company’s Matane operations that closed on November 4, 2019, we are no longer required to pay approximately $117 million of the contractual financial obligations that were presented in Note 20 — Commitments and Contingencies in the Annual Report on Form 10-K for the year ended December 31, 2018. Purchase Obligations Remainder of 2019 $ 2,818 2020 17,342 2021 11,399 2022 7,606 2023 2,524 Thereafter 5,225 Total $ 46,914 Contingencies The Company is engaged in various legal and regulatory actions and proceedings, and has been named as a defendant in various lawsuits and claims arising in the ordinary course of its business. While the Company has procured reasonable and customary insurance covering risks normally occurring in connection with its businesses, the Company has in certain cases retained some risk through the operation of self-insurance, primarily in the areas of workers’ compensation, property insurance and general liability. These other lawsuits and claims, either individually or in aggregate, are not expected to have a material adverse effect on the Company’s financial position, results of operations or cash flows. As of September 28, 2019 , all of the Company’s collective bargaining agreements covering its unionized employees are current. Guarantees and Other The Company provides financial guarantees as required by creditors, insurance programs and various governmental agencies. As of September 28, 2019 , the Company had net exposure of $36 million from various standby letters of credit, primarily for financial assurance relating to environmental remediation, credit support for natural gas and electricity purchases, and guarantees related to foreign retirement plan obligations. These standby letters of credit represent a contingent liability. The Company would only be liable upon its default on the related payment obligations. The letters of credit have various expiration dates and will be renewed as required. The Company had surety bonds of $86 million as of September 28, 2019 , primarily to comply with financial assurance requirements relating to environmental remediation and post closure care, to provide collateral for the Company’s workers’ compensation program, and to guarantee taxes and duties for products shipped internationally. These surety bonds expire at various dates and are expected to be renewed annually as required. LignoTech Florida, a venture in which the Company owns 45 percent and its venture partner Borregaard ASA owns 55 percent , entered into a construction contract to build its lignin manufacturing facility and financing agreements to fund the construction of the facility, which was completed in the second quarter of 2018. The Company is a guarantor under both the construction and financing agreements. In the event of default, the Company expects it would only be liable for its proportional share as a result of an agreement with its venture partner. The remaining guarantee related to LignoTech Florida at September 28, 2019 was $33 million . The Company has not recorded any liabilities for these financial guarantees in its consolidated balance sheets, either because the Company has recorded the underlying liability associated with the guarantee or the guarantee is dependent on the Company’s own performance and, therefore, is not subject to the measurement requirements or because the Company has calculated the estimated fair value of the guarantee and determined it to be immaterial based upon the current facts and circumstances that would trigger a payment obligation. It is not possible to determine the maximum potential amount of the liability under these potential obligations due to the unique set of facts and circumstances likely to be involved with each provision.

Supplemental Disclosures of Cas

Supplemental Disclosures of Cash Flows Information	9 Months Ended
	Sep. 28, 2019
Supplemental Cash Flow Elements [Abstract]
Supplemental Disclosures of Cash Flows Information	Supplemental Disclosures of Cash Flows Information Supplemental disclosures of cash flows information were comprised of the following for the nine months ended: September 28, 2019 September 29, 2018 Cash paid (received) during the period: Interest $ 37,126 $ 35,000 Income taxes $ 1,858 $ 12,834 Non-cash investing and financing activities: Capital assets purchased on account $ 15,732 $ 8,221

Basis of Presentation and New_2

Basis of Presentation and New Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 28, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The unaudited consolidated financial statements and notes thereto of Rayonier Advanced Materials Inc. (the “Company”) have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) for interim financial information and in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, these financial statements and notes reflect all adjustments (all of which are normal recurring adjustments) necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented. These statements and notes should be read in conjunction with the financial statements and supplementary data included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 , as filed with the SEC on March 1, 2019. The Company has reclassified certain prior year amounts to conform to the current year’s presentation for discontinued operations to reflect the sale of its Matane high-yield pulp operations. Unless otherwise stated, information in these notes to consolidated financial statements relates to continuing operations. Certain of our operations have been presented as discontinued operations. The Company presents businesses that represent components as discontinued operations when they meet the criteria for held for sale or are sold, and their disposal represents a strategic shift that has, or will have, a major effect on our operations and financial results. See Note 2 — Discontinued Operations for additional information.
Liquidity	Liquidity Cash flows from operations, primarily driven by operating results, have historically been the Company’s primary source of liquidity and capital resources. As a result of the significant decreases in the market prices for commodity products, primarily viscose, fluff, high-yield pulp, lumber, paperboard and newsprint, over the last nine months, the financial results of the Company have declined requiring it to amend the financial covenants under its Senior Secured Credit Facilities. On September 30, 2019, the Company entered into an amendment of its Senior Secured Credit Facilities reducing the restrictions of its first lien secured net leverage ratio and the interest coverage ratio tests through the year ended December 31, 2021. Under the amended agreement, the Company is in compliance with the financial covenants as of September 28, 2019 and, as such, management believes that there is no longer substantial doubt of the Company’s ability to continue as a going concern. See Note 7 — Debt and Finance Leases for additional information.
New or Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements Leases The Company adopted Accounting Standards Update 2016-02, Leases , as amended, as of January 1, 2019. The standard requires the recognition of right of use (“ROU”) assets and lease liabilities to be reported on the balance sheet but did not change the manner in which expenses are recorded in the income statement. The Company has adopted the lease guidance using the cumulative effect adjustment approach, which requires prospective application at the adoption date and elected certain practical expedients permitted under the transition guidance. The practical expedients allow for the carry forward of the historical lease classification of existing leases and eliminates the need to reassess any lease classification of expired leases and initial direct costs. The Company also elected the short-term lease practical expedient. The Company does not record ROU assets or lease liabilities for short-term leases. In addition, the Company utilized the portfolio approach to group leases with similar characteristics and did not use hindsight to determine the lease term. For leases that include other costs, such as maintenance and other services, in addition to lease cost, the Company is separating lease and non-lease components when determining the ROU assets and lease liabilities. Adoption of the new standard resulted in the recording of a ROU lease assets and lease liability of $10 million and $11 million , respectively, and the reversal of deferred rent liability balances. See Note 5 — Leases for additional information.
Fair Value Measurements	The Company uses the following methods and assumptions in estimating the fair value of its financial instruments: Cash and cash equivalents — The carrying amount is equal to fair market value. Derivative instruments — The fair value is calculated based on standard valuation models using quoted prices and market observable data of similar instruments. The interest rate derivatives are based on the LIBOR swap rate, which is observable at commonly quoted intervals for the full term of the swap and therefore is considered Level 2. The foreign currency derivatives are contracts to buy foreign currency at a fixed rate on a specified future date. The foreign exchange rate is observable for the full term of the swap and is therefore considered Level 2. See Note 9 — Derivative Instruments for additional information related to the derivative instruments. Debt — The fair value of fixed rate debt is based upon quoted market prices for debt with similar terms and maturities. The variable rate debt adjusts with changes in the market rate, therefore the carrying value approximates fair value.

Discontinued Operations (Tables

Discontinued Operations (Tables)	9 Months Ended
	Sep. 28, 2019
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Discontinued Operations	The following table presents the major classes of assets and liabilities of discontinued operations that are classified as held for sale: September 28, 2019 December 31, 2018 Accounts receivable, net $ 15,355 $ 23,093 Inventory 15,770 17,349 Prepaid and other current assets 811 2,058 Total current assets 31,936 42,500 Property, plant and equipment, net 18,437 17,482 Deferred tax assets 31,486 31,486 Other assets 2,439 2,239 Total assets $ 84,298 $ 93,707 Accounts payable $ 6,415 $ 11,035 Accrued and other current liabilities 5,946 3,786 Other current liabilities 752 1,415 Total current liabilities 13,113 16,236 Other long-term liabilities 5,661 5,548 Total liabilities $ 18,774 $ 21,784 Income (loss) from discontinued operations is comprised of the following: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Revenues $ 34,781 $ 43,041 $ 114,085 $ 132,401 Cost of sales (31,271 ) (29,425 ) (93,567 ) (93,546 ) Gross margin 3,510 13,616 20,518 38,855 Selling, general and administrative expenses and other (2,001 ) (406 ) (2,855 ) (1,258 ) Operating income (loss) 1,509 13,210 17,663 37,597 Interest expense (a) (1,160 ) (1,142 ) (3,516 ) (3,298 ) Other non-operating income 87 93 262 284 Income (Loss) Before Income Taxes 436 12,161 14,409 34,583 Income tax benefit (expense) (299 ) (4,192 ) (3,978 ) (11,154 ) Net Income (loss) $ 137 $ 7,969 $ 10,431 $ 23,429 (a) The Company is required to pay $100 million of debt from proceeds received from the sale of Matane. Interest expense has been allocated to discontinued operations using the weighted-average interest rates in effect for each period presented based on the proportionate amounts required to be repaid. Other discontinued operations information is as follows: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Depreciation and amortization $ 230 $ 630 $ 1,590 $ 1,818 Capital expenditures $ 1,531 $ 712 $ 2,606 $ 2,492

Accounts Receivable, Net (Table

Accounts Receivable, Net (Tables)	9 Months Ended
	Sep. 28, 2019
Receivables [Abstract]
Schedule of Accounts Receivable	The Company’s accounts receivable included the following: September 28, 2019 December 31, 2018 Accounts receivable, trade $ 124,958 $ 146,056 Accounts receivable, other (a) 37,796 53,787 Allowance for doubtful accounts (647 ) (559 ) Total accounts receivable, net $ 162,107 $ 199,284 (a) Accounts receivable, other consists primarily of value added/consumption taxes, grants receivable and accrued billings due from government agencies.

Inventory (Tables)

Inventory (Tables)	9 Months Ended
	Sep. 28, 2019
Inventory Disclosure [Abstract]
Schedule of Inventory	The Company’s inventory included the following: September 28, 2019 December 31, 2018 Finished goods $ 184,771 $ 203,350 Work-in-progress 19,837 21,478 Raw materials 77,057 68,656 Manufacturing and maintenance supplies 9,760 10,544 Total inventory $ 291,425 $ 304,028

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 28, 2019
Leases [Abstract]
Components of Lease Expense	The Company’s operating and finance lease cost is as follows: Three Months Ended Nine Months Ended September 28, 2019 September 28, 2019 Operating Leases Operating lease expense $ 1,715 $ 4,322 Finance Leases Amortization of ROU assets 77 228 Interest 52 159 Total $ 1,844 $ 4,709
Balance Sheet Components	The Company’s balance sheet includes the following operating lease assets and liabilities: Balance Sheet Classification September 28, 2019 Right-of-use assets Other assets $ 22,516 Lease liabilities, current Accrued and other current liabilities $ 5,276 Lease liabilities, non-current Other non-current liabilities $ 17,935
Operating Lease Maturity	As of September 28, 2019 , operating lease maturities for the remainder of 2019 through 2023 and thereafter are as follows: September 28, 2019 Remainder of 2019 $ 1,664 2020 6,323 2021 5,639 2022 5,414 2023 4,605 Thereafter 3,056 Total minimum lease payments $ 26,701 Less: imputed interest (3,490 ) Present value of future minimum lease payments $ 23,211

Accrued and Other Current Lia_2

Accrued and Other Current Liabilities (Tables)	9 Months Ended
	Sep. 28, 2019
Payables and Accruals [Abstract]
Schedule of Accrued and Other Current Liabilities	The Company’s accrued and other current liabilities included the following: September 28, 2019 December 31, 2018 Accrued customer incentives and prepayments $ 34,556 $ 41,734 Accrued payroll and benefits 24,461 29,567 Accrued interest 9,775 3,170 Derivative instruments 2,930 16,767 Accrued property and other taxes 14,814 10,663 Other current liabilities 30,182 44,254 Total accrued and other current liabilities $ 116,718 $ 146,155

Debt and Finance Leases (Tables

Debt and Finance Leases (Tables)	9 Months Ended
	Sep. 28, 2019
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	The Company’s debt and finance leases included the following: September 28, 2019 December 31, 2018 U.S. Revolver of $100 million maturing in November 2022, $41 available, bearing interest at LIBOR plus 2.25%, interest of 4.30% at September 28, 2019 $ 50,000 $ — Multi-currency Revolver of $150 million maturing in November 2022, $126 available, bearing interest at LIBOR plus 2.00% at September 28, 2019 — — Term A-1 Loan Facility borrowings maturing through November 2022 bearing interest at LIBOR plus 2.25%, interest rate of 4.30% at September 28, 2019 160,000 160,000 Term A-2 Loan Facility borrowings maturing through November 2024 bearing interest at LIBOR plus 2.50% (after consideration of 0.60% patronage benefit), interest rate of 4.55% at September 28, 2019 438,875 438,875 Senior Notes due 2024 at a fixed interest rate of 5.50% 495,647 495,647 Canadian dollar, fixed interest rate term loans with rates ranging from 5.50% to 6.86% and maturity dates ranging from March 2020 through April 2028, secured by certain assets of the Temiscaming plant 85,501 91,304 Other loans 4,891 3,777 Finance lease obligation 2,896 3,124 Total debt principal payments due 1,237,810 1,192,727 Less: Debt premium, original issue discount and issuance costs, net (4,021 ) (4,558 ) Total debt 1,233,789 1,188,169 Less: Current maturities of long-term debt (21,357 ) (15,012 ) Long-term debt $ 1,212,432 $ 1,173,157
Schedule of Maturities of Long-term Debt	As of September 28, 2019 , debt and finance lease payments due during the remainder of 2019 and the next four years and thereafter are as follows: Finance Lease Payments Debt Principal Payments Remaining 2019 $ 129 $ 3,342 2020 515 23,124 2021 515 12,568 2022 515 239,779 2023 515 10,674 Thereafter 1,502 945,427 Total principal payments $ 3,691 $ 1,234,914 Less: Imputed interest (795 ) Present value minimum finance lease payments $ 2,896

Environmental Liabilities (Tabl

Environmental Liabilities (Tables)	9 Months Ended
	Sep. 28, 2019
Environmental Remediation Obligations [Abstract]
Schedule of Liabilities for Disposed Operations	An analysis of liabilities for the nine months ended September 28, 2019 is as follows: Balance, December 31, 2018 $ 160,654 Increase in liabilities 928 Payments (2,547 ) Foreign currency adjustments 464 Balance, September 28, 2019 159,499 Less: Current portion (11,445 ) Long-term environmental liabilities $ 148,054

Derivatives Instruments (Tables

Derivatives Instruments (Tables)	9 Months Ended
	Sep. 28, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The notional amounts of outstanding derivative instruments as of September 28, 2019 and December 31, 2018 are presented below. September 28, 2019 December 31, 2018 Interest rate swaps (a) $ 200,000 $ 200,000 Foreign exchange forward contracts (b) $ 359,648 $ 388,930 Foreign exchange forward contracts (c) $ 95,051 $ 125,979 (a) Maturity date of December 2020 (b) Various maturity dates through September 2020 (c) Various maturity dates in 2020, 2022 and 2028
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The fair values of derivative instruments included in the consolidated balance sheet as of September 28, 2019 and December 31, 2018 are provided in the below table. See Note 10 — Fair Value Measurements for additional information related to the Company’s derivatives. Balance Sheet Location September 28, 2019 December 31, 2018 Assets Derivatives designated as hedging instruments: Interest rate swaps Other current assets $ — $ 1,194 Interest rate swaps Other assets — 937 Foreign exchange forward contracts Other current assets 914 — Derivatives not designated as hedging instruments: Foreign exchange forward contracts Other current assets 35 7 Liabilities Derivatives designated as hedging instruments: Interest rate swaps Other current liabilities (557 ) — Interest rate swaps Other non-current liabilities (277 ) — Foreign exchange forward contracts Other current liabilities (2,373 ) (16,408 ) Foreign exchange forward contracts Other non-current liabilities (2,044 ) (3,105 ) Derivatives not designated as hedging instruments: Foreign exchange forward contracts Other current liabilities — (360 ) Total derivatives $ (4,302 ) $ (17,735 )
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The effects of derivatives designated as hedging instruments, the related changes in AOCI and the gains and losses in income are presented below. Three Months Ended September 28, 2019 Derivatives Designated as Hedging Instruments Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ (64 ) $ 172 Interest expense Foreign exchange forward contracts $ (5,940 ) $ (76 ) Other operating expense, net Foreign exchange forward contracts $ 1,256 $ (1,256 ) Cost of sales Foreign exchange forward contracts $ (2,000 ) $ (1,290 ) Interest income and other, net Three Months Ended September 29, 2018 Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ 530 $ 74 Interest expense Foreign exchange forward contracts $ 5,002 $ 60 Other operating expense, net Foreign exchange forward contracts $ 1,399 $ (1,399 ) Cost of sales Foreign exchange forward contracts $ 1,570 $ 1,529 Interest income and other, net Nine Months Ended September 28, 2019 Derivatives Designated as Hedging Instruments Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ (2,237 ) $ 728 Interest expense Foreign exchange forward contracts $ (1,903 ) $ 600 Other operating expense, net Foreign exchange forward contracts $ 8,822 $ (8,822 ) Cost of sales Foreign exchange forward contracts $ 1,031 $ 2,077 Interest income and other, net Nine Months Ended September 29, 2018 Derivatives Designated as Hedging Instruments Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from AOCI into Income Location on Statement of Income Interest rate swaps $ 3,095 $ (112 ) Interest expense Foreign exchange forward contracts $ (5,406 ) $ 1,188 Other operating expense, net Foreign exchange forward contracts $ 1,466 $ (1,466 ) Cost of sales Foreign exchange forward contracts $ 181 $ 973 Interest income and other, net
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The effects of derivative instruments not designated as hedging instruments on the statement of income were as follows: Three Months Ended Nine Months Ended Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Foreign exchange forward contracts Other operating income (expense), net $ (137 ) $ (250 ) $ 193 $ (3,791 )
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The after-tax amounts of unrealized gains (losses) in AOCI related to hedge derivatives are presented below: September 28, 2019 December 31, 2018 Interest rate cash flow hedges $ (650 ) $ 1,663 Foreign exchange cash flow hedges $ (2,990 ) $ (13,285 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 28, 2019
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis	The following table presents the carrying amount, estimated fair values and categorization under the fair value hierarchy for financial instruments held by the Company at September 28, 2019 and December 31, 2018 , using market information and what management believes to be appropriate valuation methodologies: September 28, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value Assets: Level 1 Level 2 Level 1 Level 2 Cash and cash equivalents $ 62,762 $ 62,762 $ — $ 108,966 $ 108,966 $ — Interest rate swaps (a) — — — 2,131 — 2,131 Foreign currency forward contracts (a) 949 — 949 7 — 7 Liabilities (b): Interest rate swaps (a) 834 — 834 — — — Foreign currency forward contracts (a) 4,417 — 4,417 19,873 — 19,873 Fixed-rate long-term debt 580,068 — 448,325 585,824 — 541,267 Variable-rate long-term debt 650,824 — 653,766 599,221 — 602,652 (a) These items represent derivative instruments. (b) Liabilities exclude finance lease obligation.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 28, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Loss	The components of AOCI are as follows: Nine Months Ended September 28, 2019 September 29, 2018 Unrecognized components of employee benefit plans, net of tax: Balance, beginning of year $ (135,590 ) $ (81,638 ) Reclassifications to earnings: (a) Amortization of losses 7,829 8,907 Amortization of prior service costs 311 429 Amortization of negative plan amendment — (115 ) Income tax on reclassifications (1,804 ) (2,028 ) Foreign currency adjustments, net of tax of $75 (214 ) — Net comprehensive gain (loss) on employee benefit plans, net of tax 6,122 7,193 Balance, end of quarter (129,468 ) (74,445 ) Unrealized gain (loss) on derivative instruments, net of tax: Balance, beginning of year (11,622 ) 619 Other comprehensive income before reclassifications 5,713 (664 ) Income tax on other comprehensive income (1,446 ) 281 Reclassifications to earnings: (b) Interest rate contracts (728 ) 112 Foreign exchange contracts 6,145 (695 ) Income tax on reclassifications (1,702 ) 30 Net comprehensive gain (loss) on derivative instruments, net of tax 7,982 (936 ) Balance, end of quarter (3,640 ) (317 ) Foreign currency translation adjustments: Balance, beginning of year (8,485 ) 4,868 Foreign currency translation adjustment, net of tax of $0 and $0 (12,905 ) (10,265 ) Balance, end of quarter (21,390 ) (5,397 ) Accumulated other comprehensive income (loss), end of quarter $ (154,498 ) $ (80,159 ) (a) The AOCI components for defined benefit pension and post-retirement plans are included in the computation of net periodic benefit cost. See Note 15 — Employee Benefit Plans for additional information. (b) Reclassifications of interest rate contracts are recorded in interest expense. Reclassifications of foreign currency exchange contracts are recorded in cost of sales, other operating income or non-operating income as appropriate. See Note 9 — Derivative Instruments for additional information.

Stockholder's Equity (Tables)

Stockholder's Equity (Tables)	9 Months Ended
	Sep. 28, 2019
Equity [Abstract]
Schedule of Stockholder's Equity (Deficit)	An analysis of stockholders’ equity is shown below (share amounts not in thousands): Common Stock Preferred Stock Additional Paid in Capital Retained Earnings Accumulated Other Comprehensive Loss Total Stockholders’ Equity Shares Par Value Shares Par Value For the nine months ended September 28, 2019 Balance, December 31, 2018 49,291,130 $ 493 1,725,000 $ 17 $ 399,490 $ 462,568 $ (155,697 ) $ 706,871 Net income (loss) — — — — — (51,183 ) — (51,183 ) Other comprehensive income (loss), net of tax — — — — — — 1,199 1,199 Preferred stock converted to common stock 13,361,678 133 (1,725,000 ) (17 ) (116 ) — — — Issuance of common stock under incentive stock plans 980,968 10 — — (10 ) — — — Stock-based compensation — — — — 5,696 — — 5,696 Repurchase of common stock (422,965 ) (4 ) — — (5,826 ) — — (5,830 ) Common stock dividends ($0.14 per share) — — — — — (7,395 ) — (7,395 ) Preferred stock dividends ($6.00 per share) — — — — — (10,350 ) — (10,350 ) Balance, September 28, 2019 63,210,811 $ 632 — $ — $ 399,234 $ 393,640 $ (154,498 ) $ 639,008 For the three months ended September 28, 2019 Balance, June 29, 2019 49,848,087 $ 498 1,725,000 $ 17 $ 397,115 $ 411,306 $ (142,370 ) $ 666,566 Net income (loss) — — — — — (14,216 ) — (14,216 ) Other comprehensive income (loss), net of tax — — — — — — (12,128 ) (12,128 ) Preferred stock converted to common stock 13,361,678 133 (1,725,000 ) (17 ) (116 ) — — — Issuance of common stock under incentive stock plans 953 — — — — — — — Stock-based compensation — — — — 2,240 — — 2,240 Repurchase of common shares 93 1 — — (5 ) — — (4 ) Common stock dividends — — — — — — — — Preferred stock dividends ($2.00 per share) — — — — — (3,450 ) — (3,450 ) Balance, September 28, 2019 63,210,811 $ 632 — $ — $ 399,234 $ 393,640 $ (154,498 ) $ 639,008 Common Stock Preferred Stock Additional Paid in Capital Retained Earnings Accumulated Other Comprehensive Loss Total Stockholders’ Equity Shares Par Value Shares Par Value For the nine months ended September 29, 2018 Balance, December 31, 2017 51,717,142 $ 517 1,725,000 $ 17 $ 392,353 $ 377,020 $ (76,151 ) $ 693,756 Net income (loss) — — — — — 115,781 — 115,781 Other comprehensive income (loss), net of tax — — — — — — (4,008 ) (4,008 ) Issuance of common stock under incentive stock plans 302,976 3 — — 449 — — 452 Stock-based compensation — — — — 10,146 — — 10,146 Repurchase of common stock (959,163 ) (9 ) — — (4,089 ) (13,686 ) — (17,784 ) Common stock dividends ($0.21 per share) — — — — — (11,137 ) — (11,137 ) Preferred stock dividends ($6.00 per share) — — — — — (10,350 ) — (10,350 ) Balance, September 29, 2018 51,060,955 $ 511 1,725,000 $ 17 $ 398,859 $ 457,628 $ (80,159 ) $ 776,856 For the three months ended September 29, 2018 Balance, June 30, 2018 51,217,595 $ 512 1,725,000 $ 17 $ 395,326 $ 429,753 $ (86,669 ) $ 738,939 Net income (loss) — — — — — 37,936 — 37,936 Other comprehensive income (loss), net of tax — — — — — — 6,510 6,510 Issuance of common stock under incentive stock plans 414 — — — 109 — — 109 Stock-based compensation — — — — 3,647 — — 3,647 Repurchase of common shares (157,054 ) (1 ) — — (223 ) (3,031 ) — (3,255 ) Common stock dividends ($0.07 per share) — — — — — (3,580 ) — (3,580 ) Preferred stock dividends ($2.00 per share) — — — — — (3,450 ) — (3,450 ) Balance, September 29, 2018 51,060,955 $ 511 1,725,000 $ 17 $ 398,859 $ 457,628 $ (80,159 ) $ 776,856

Earnings Per Share of Common _2

Earnings Per Share of Common Stock (Tables)	9 Months Ended
	Sep. 28, 2019
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table provides details of the calculations of basic and diluted earnings per share: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Income (loss) from continuing operations $ (14,353 ) $ 29,967 $ (61,614 ) $ 92,352 Preferred Stock dividends (1,777 ) (3,441 ) (8,582 ) (10,284 ) Income (loss) from continuing operations attributable to common stockholders (16,130 ) 26,526 (70,196 ) 82,068 Income (loss) from discontinued operations 137 7,969 10,431 23,429 Net income (loss) available for common stockholders $ (15,993 ) $ 34,495 $ (59,765 ) $ 105,497 Shares used for determining basic earnings per share of common stock 56,089,839 50,603,498 51,576,123 51,005,206 Dilutive effect of: Stock options — 3,620 — 4,127 Performance and restricted stock — 1,266,588 — 1,297,024 Preferred stock — 11,371,718 — 11,371,718 Shares used for determining diluted earnings per share of common stock 56,089,839 63,245,424 51,576,123 63,678,075 Basic per share amounts Income (loss) from continuing operations $ (0.29 ) $ 0.52 $ (1.36 ) $ 1.61 Income (loss) from discontinued operations — 0.16 0.20 0.46 Net income (loss) $ (0.29 ) $ 0.68 $ (1.16 ) $ 2.07 Diluted per share amounts Income (loss) from continuing operations $ (0.29 ) $ 0.47 $ (1.36 ) $ 1.45 Income (loss) from discontinued operations — 0.13 0.20 0.37 Net income (loss) $ (0.29 ) $ 0.60 $ (1.16 ) $ 1.82
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	Anti-dilutive instruments excluded from the computation of diluted earnings per share: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Stock options 225,934 263,184 225,934 263,184 Performance and restricted stock 688,029 11,687 502,888 398,576 Total anti-dilutive instruments 913,963 274,871 728,822 661,760

Incentive Stock Plans (Tables)

Incentive Stock Plans (Tables)	9 Months Ended
	Sep. 28, 2019
Share-based Payment Arrangement [Abstract]
Summary of Activity for Incentive Stock Awards	The following table summarizes the activity on the Company’s incentive stock awards for the nine months ended September 28, 2019 : Stock Options Restricted Stock and Stock Units Performance-Based Stock Units Options Weighted Average Exercise Price Awards Weighted Average Grant Date Fair Value Awards Weighted Average Grant Date Fair Value Outstanding at January 1, 2019 286,613 $ 34.23 917,098 $ 13.71 1,325,894 $ 14.69 Granted — — 395,777 11.99 400,921 14.98 Forfeited — — (9,533 ) 15.22 (7,501 ) 16.92 Exercised or settled — — (458,748 ) 10.64 (520,167 ) 7.80 Expired or cancelled (60,679 ) 26.82 — — — — Outstanding at September 28, 2019 225,934 $ 36.22 844,594 $ 14.56 1,199,147 $ 17.76

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 28, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Schedule of Net Pension and Postretirement Benefit Costs	The components of net periodic benefit costs from defined benefit plans that have been recorded are shown in the following table: Pension Postretirement Three Months Ended Three Months Ended Components of Net Periodic Benefit Cost September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Service cost $ 2,411 $ 2,845 $ 456 $ 521 Interest cost 9,199 7,907 352 217 Expected return on plan assets (13,110 ) (13,302 ) — — Amortization of prior service cost 142 143 (38 ) — Amortization of losses 2,590 2,912 20 57 Amortization of negative plan amendment — — — — Total net periodic benefit cost $ 1,232 $ 505 $ 790 $ 795 Pension Postretirement Nine Months Ended Nine Months Ended Components of Net Periodic Benefit Cost September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 Service cost $ 7,339 $ 8,605 $ 1,387 $ 1,978 Interest cost 27,949 23,885 1,072 675 Expected return on plan assets (40,475 ) (40,166 ) — — Amortization of prior service cost 426 429 (115 ) — Amortization of losses 7,768 8,735 61 172 Amortization of negative plan amendment — — — — Total net periodic benefit cost $ 3,007 $ 1,488 $ 2,405 $ 2,825

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 28, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Net sales, disaggregated by product-line, was comprised of the following: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 High Purity Cellulose Cellulose Specialties $ 180,718 $ 217,538 $ 563,604 $ 625,864 Commodity Products 67,348 56,448 197,492 153,220 Other sales (a) 19,675 34,001 61,445 96,535 Total High Purity Cellulose 267,741 307,987 822,541 875,619 Forest Products Lumber 49,195 68,713 170,855 228,686 Other sales (b) 16,265 17,242 50,982 53,551 Total Forest Products 65,460 85,955 221,837 282,237 Pulp High-yield pulp 26,159 46,399 94,746 133,093 Paper Paperboard 53,818 50,675 151,161 149,100 Newsprint 19,948 27,698 66,613 88,958 Total Paper 73,766 78,373 217,774 238,058 Eliminations (16,997 ) (17,416 ) (49,476 ) (53,358 ) Total net sales $ 416,129 $ 501,298 $ 1,307,422 $ 1,475,649 (a) Other sales include sales of electricity, resins, lignin and other by-products to third-parties (b) Other sales include sales of logs, wood chips and other by-products to other segments and third-parties Operating income (loss) by segment was comprised of the following: Three Months Ended Nine Months Ended September 28, 2019 September 29, 2018 September 28, 2019 September 29, 2018 High Purity Cellulose $ 6,745 $ 33,922 $ 10,665 $ 83,288 Forest Products (5,076 ) 7,986 (26,664 ) 35,158 Pulp (2,061 ) 12,825 2,700 37,373 Paper 165 13,648 1,136 23,465 Corporate (8,337 ) (25,441 ) (39,320 ) (48,252 ) Total operating income (loss) $ (8,564 ) $ 42,940 $ (51,483 ) $ 131,032 Identifiable assets by segment were as follows: September 28, 2019 December 31, 2018 High Purity Cellulose $ 1,585,594 $ 1,643,092 Forest Products 169,365 166,801 Pulp 33,284 41,087 Paper 223,302 240,427 Corporate 500,851 493,972 Assets Held for Sale 84,298 93,707 Total identifiable assets $ 2,596,694 $ 2,679,086

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 28, 2019
Commitments and Contingencies Disclosure [Abstract]
Purchase Obligations	The following table includes the material changes to the contractual financial obligations presented in Note 20 — Commitments and Contingencies in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 , as filed with the SEC. The changes in the future minimum payments under these purchase obligations are presented as of September 28, 2019 . The amounts primarily consist of commitments for the purchase of natural gas, steam energy and electricity contracts. The payment amounts are estimates and may vary based on changes in actual price and volumes terms. Subsequent to the sale of the Company’s Matane operations that closed on November 4, 2019, we are no longer required to pay approximately $117 million of the contractual financial obligations that were presented in Note 20 — Commitments and Contingencies in the Annual Report on Form 10-K for the year ended December 31, 2018. Purchase Obligations Remainder of 2019 $ 2,818 2020 17,342 2021 11,399 2022 7,606 2023 2,524 Thereafter 5,225 Total $ 46,914

Supplemental Disclosures of C_2

Supplemental Disclosures of Cash Flows Information (Tables)	9 Months Ended
	Sep. 28, 2019
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash Flow, Supplemental Disclosures	Supplemental disclosures of cash flows information were comprised of the following for the nine months ended: September 28, 2019 September 29, 2018 Cash paid (received) during the period: Interest $ 37,126 $ 35,000 Income taxes $ 1,858 $ 12,834 Non-cash investing and financing activities: Capital assets purchased on account $ 15,732 $ 8,221

Basis of Presentation and New_3

Basis of Presentation and New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Nov. 04, 2019	Oct. 16, 2019	Sep. 28, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets			$ 22,516
Lease liability			$ 23,211
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets				$ 10,000
Lease liability				$ 11,000
Subsequent Event | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loss due to settlement		$ 15,000
Subsequent Event | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Loss due to settlement		$ 20,000
Matane Plant | Discontinued Operations, Disposed of by Sale | Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Proceeds from sale	$ 150,000
Pay-down of debt	$ 100,000

Discontinued Operations - Narr

Discontinued Operations - Narrative (Details) - Subsequent Event - Matane Plant - Discontinued Operations, Disposed of by Sale t in Thousands, $ in Millions	Nov. 04, 2019USD ($)t
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross purchase price | $	$ 175
Production capacity | t	270

Discontinued Operations - Asset

Discontinued Operations - Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total current assets	$ 84,298	$ 42,500
Total assets	84,298	93,707
Total current liabilities	18,774	16,236
Other long-term liabilities	0	5,548
Matane, Quebec Pulp Mill | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	15,355	23,093
Inventory	15,770	17,349
Prepaid and other current assets	811	2,058
Total current assets	31,936	42,500
Property, plant and equipment, net	18,437	17,482
Deferred tax assets	31,486	31,486
Other assets	2,439	2,239
Total assets	84,298	93,707
Accounts payable	6,415	11,035
Accrued and other current liabilities	5,946	3,786
Other current liabilities	752	1,415
Total current liabilities	13,113	16,236
Other long-term liabilities	5,661	5,548
Total liabilities	$ 18,774	$ 21,784

Discontinued Operations - Inco

Discontinued Operations - Income (Loss) from Discontinued Operations (Details) - USD ($) $ in Thousands	Nov. 04, 2019	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Discontinued Operations, Held-for-sale | Matane, Quebec Pulp Mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		$ 34,781	$ 43,041	$ 114,085	$ 132,401
Cost of sales		(31,271)	(29,425)	(93,567)	(93,546)
Gross margin		3,510	13,616	20,518	38,855
Selling, general and administrative expenses and other		(2,001)	(406)	(2,855)	(1,258)
Operating income (loss)		1,509	13,210	17,663	37,597
Interest expense		(1,160)	(1,142)	(3,516)	(3,298)
Other non-operating income		87	93	262	284
Income (Loss) Before Income Taxes		436	12,161	14,409	34,583
Income tax benefit (expense)		(299)	(4,192)	(3,978)	(11,154)
Net Income (loss)		$ 137	$ 7,969	$ 10,431	$ 23,429
Subsequent Event | Discontinued Operations, Disposed of by Sale | Matane Plant
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Debt required to be repaid	$ 100,000

Discontinued Operations - Other

Discontinued Operations - Other Discontinued Operations Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization		$ 630		$ 1,818
Capital expenditures	$ 1,531	$ 712	$ 2,606	$ 2,492
Matane, Quebec Pulp Mill | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization	$ 230		$ 1,590

Accounts Receivable, Net - Sch

Accounts Receivable, Net - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	$ (647)	$ (559)
Total accounts receivable, net	162,107	199,284
Accounts receivable, trade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	124,958	146,056
Accounts receivable, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	$ 37,796	$ 53,787

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Finished goods	$ 184,771	$ 203,350
Work-in-progress	19,837	21,478
Raw materials	77,057	68,656
Manufacturing and maintenance supplies	9,760	10,544
Total inventory	$ 291,425	$ 304,028

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 28, 2019USD ($)
Lessee, Lease, Description [Line Items]
Operating lease, weighted average discount rate	6.00%
Finance lease, weighted average discount rate	7.00%
Weighted average remaining lease term, operating leases	4 years 7 months 6 days
Weighted average remaining lease term, finance leases	7 years 2 months 12 days
Operating lease payments	$ 4
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	9 years

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 28, 2019	Sep. 28, 2019
Operating Leases
Operating lease expense	$ 1,715	$ 4,322
Finance Leases
Amortization of ROU assets	77	228
Interest	52	159
Total	$ 1,844	$ 4,709

Leases - Balance Sheet Componen

Leases - Balance Sheet Components (Details) $ in Thousands	Sep. 28, 2019USD ($)
Leases [Abstract]
Right-of-use assets	$ 22,516
Lease liabilities, current	5,276
Lease liabilities, non-current	$ 17,935

Leases - Lease Maturity (Detail

Leases - Lease Maturity (Details) $ in Thousands	Sep. 28, 2019USD ($)
Leases [Abstract]
Remainder of 2019	$ 1,664
2020	6,323
2021	5,639
2022	5,414
2023	4,605
Thereafter	3,056
Total minimum lease payments	26,701
Less: imputed interest	(3,490)
Present value of future minimum lease payments	$ 23,211

Accrued and Other Current Lia_3

Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued customer incentives and prepayments	$ 34,556	$ 41,734
Accrued payroll and benefits	24,461	29,567
Accrued interest	9,775	3,170
Derivative instruments	2,930	16,767
Accrued property and other taxes	14,814	10,663
Other current liabilities	30,182	44,254
Total accrued and other current liabilities	$ 116,718	$ 146,155

Debt and Finance Leases - Summa

Debt and Finance Leases - Summary of Debt (Details) - USD ($)	9 Months Ended
	Sep. 28, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Debt, gross	$ 1,234,914,000
Finance lease obligation	2,896,000
Finance lease obligation		$ 3,124,000
Total debt principal payments due	1,237,810,000	1,192,727,000
Less: Debt premium, original issue discount and issuance costs, net	(4,021,000)	(4,558,000)
Total debt	1,233,789,000	1,188,169,000
Less: Current maturities of long-term debt	(21,357,000)	(15,012,000)
Long-term debt	1,212,432,000	1,173,157,000
Credit Facility | U.S. Revolver of $100 million maturing in November 2022, $41 available, bearing interest at LIBOR plus 2.25%, interest of 4.30% at September 28, 2019
Debt Instrument [Line Items]
Borrowing capacity	100,000,000
Borrowing capacity after outstanding letters of credit	41,000,000
Debt, gross	$ 50,000,000	0
Credit Facility | U.S. Revolver of $100 million maturing in November 2022, $41 available, bearing interest at LIBOR plus 2.25%, interest of 4.30% at September 28, 2019 | LIBOR
Debt Instrument [Line Items]
Basis spread	2.25%
Interest rate	4.30%
Credit Facility | Multi-currency Revolver of $150 million maturing in November 2022, $126 available, bearing interest at LIBOR plus 2.00% at September 28, 2019
Debt Instrument [Line Items]
Borrowing capacity	$ 150,000,000
Borrowing capacity after outstanding letters of credit	126,000,000
Debt, gross	$ 0	0
Credit Facility | Multi-currency Revolver of $150 million maturing in November 2022, $126 available, bearing interest at LIBOR plus 2.00% at September 28, 2019 | LIBOR
Debt Instrument [Line Items]
Basis spread	2.00%
Term Loan Facility | Term A-1 Loan Facility borrowings maturing through November 2022 bearing interest at LIBOR plus 2.25%, interest rate of 4.30% at September 28, 2019
Debt Instrument [Line Items]
Interest rate	4.30%
Debt, gross	$ 160,000,000	160,000,000
Term Loan Facility | Term A-1 Loan Facility borrowings maturing through November 2022 bearing interest at LIBOR plus 2.25%, interest rate of 4.30% at September 28, 2019 | LIBOR
Debt Instrument [Line Items]
Basis spread	2.25%
Term Loan Facility | Term A-2 Loan Facility borrowings maturing through November 2024 bearing interest at LIBOR plus 2.50% (after consideration of 0.60% patronage benefit), interest rate of 4.55% at September 28, 2019
Debt Instrument [Line Items]
Interest rate	4.55%
Patronage benefit	0.60%
Debt, gross	$ 438,875,000	438,875,000
Term Loan Facility | Term A-2 Loan Facility borrowings maturing through November 2024 bearing interest at LIBOR plus 2.50% (after consideration of 0.60% patronage benefit), interest rate of 4.55% at September 28, 2019 | LIBOR
Debt Instrument [Line Items]
Basis spread after patronage benefit	2.50%
Senior Notes | Senior Notes due 2024 at a fixed interest rate of 5.50%
Debt Instrument [Line Items]
Fixed interest rate	5.50%
Debt, gross	$ 495,647,000	495,647,000
Loans | Canadian dollar, fixed interest rate term loans with rates ranging from 5.50% to 6.86% and maturity dates ranging from March 2020 through April 2028, secured by certain assets of the Temiscaming plant
Debt Instrument [Line Items]
Debt, gross	85,501,000	91,304,000
Loans | Other loans
Debt Instrument [Line Items]
Debt, gross	$ 4,891,000	$ 3,777,000
Minimum | Loans | Canadian dollar, fixed interest rate term loans with rates ranging from 5.50% to 6.86% and maturity dates ranging from March 2020 through April 2028, secured by certain assets of the Temiscaming plant
Debt Instrument [Line Items]
Fixed interest rate	5.50%
Maximum | Loans | Canadian dollar, fixed interest rate term loans with rates ranging from 5.50% to 6.86% and maturity dates ranging from March 2020 through April 2028, secured by certain assets of the Temiscaming plant
Debt Instrument [Line Items]
Fixed interest rate	6.86%

Debt and Finance Leases - Sched

Debt and Finance Leases - Schedule of Maturities of Long-term Debt (Details) $ in Thousands	Sep. 28, 2019USD ($)
Finance Lease Payments
Remaining 2019	$ 129
2020	515
2021	515
2022	515
2023	515
Thereafter	1,502
Total principal payments	3,691
Less: Imputed interest	(795)
Present value minimum finance lease payments	2,896
Debt Principal Payments
Remaining 2019	3,342
2020	23,124
2021	12,568
2022	239,779
2023	10,674
Thereafter	945,427
Total principal payments	$ 1,234,914

Debt and Finance Leases - Narra

Debt and Finance Leases - Narrative (Details)	Sep. 30, 2019
Subsequent Event | Senior Notes | Senior Notes due 2024 at a fixed interest rate of 5.50%
Debt Instrument [Line Items]
Increase in interest rate (up to)	1.25%

Environmental Liabilities - Ana

Environmental Liabilities - Analysis of Activity (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2019	Dec. 31, 2018
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance, December 31, 2018	$ 160,654
Increase in liabilities	928
Payments	(2,547)
Foreign currency adjustments	464
Balance, September 28, 2019	159,499
Less: Current portion	(11,445)	$ (11,310)
Long-term environmental liabilities	$ 148,054	$ 149,344

Environmental Liabilities - Nar

Environmental Liabilities - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 28, 2019USD ($)
Environmental Remediation Obligations [Abstract]
Loss exposure in excess of accrual, high estimate	$ 69
Probable costs expected to be incurred, term	20 years

Derivatives Instruments - Nota

Derivatives Instruments - Notational Amounts and Maturity Dates of Derivative Instruments (Details) - USD ($)	Sep. 28, 2019	Dec. 31, 2018
Interest Rate Swap Maturing December 2020 | Interest rate swaps
Derivative [Line Items]
Notational amount	$ 200,000,000	$ 200,000,000
Foreign Exchange Forward Contract Maturing Various Dates Through September 2020 | Foreign exchange forward contracts
Derivative [Line Items]
Notational amount	359,648,000	388,930,000
Foreign Exchange Forward Contract Maturing Various Date In 2020, 2022, 2028 | Foreign exchange forward contracts
Derivative [Line Items]
Notational amount	$ 95,051,000	$ 125,979,000

Derivatives Instruments - Fair

Derivatives Instruments - Fair Value of Derivative Instruments Included in Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Total derivatives	$ (4,302)	$ (17,735)
Interest rate swaps | Derivatives designated as hedging instruments | Other current assets
Derivatives, Fair Value [Line Items]
Assets	0	1,194
Interest rate swaps | Derivatives designated as hedging instruments | Other assets
Derivatives, Fair Value [Line Items]
Assets	0	937
Interest rate swaps | Derivatives designated as hedging instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Liabilities	(557)	0
Interest rate swaps | Derivatives designated as hedging instruments | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Liabilities	(277)	0
Foreign exchange forward contracts | Derivatives designated as hedging instruments | Other current assets
Derivatives, Fair Value [Line Items]
Assets	914	0
Foreign exchange forward contracts | Derivatives designated as hedging instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Liabilities	(2,373)	(16,408)
Foreign exchange forward contracts | Derivatives designated as hedging instruments | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Liabilities	(2,044)	(3,105)
Foreign exchange forward contracts | Derivatives not designated as hedging instruments | Other current assets
Derivatives, Fair Value [Line Items]
Assets	35	7
Foreign exchange forward contracts | Derivatives not designated as hedging instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Liabilities	$ 0	$ (360)

Derivatives Instruments - Deriv

Derivatives Instruments - Derivative Instruments Classified as Cash Flow Hedges (Details) - Cash Flow Hedging - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Interest expense | Interest rate swaps
Derivative [Line Items]
Gain (Loss) Recognized in OCI on Derivative	$ (64)	$ 530	$ (2,237)	$ 3,095
Gain (Loss) Reclassified from AOCI into Income	172	74	728	(112)
Other operating income (expense), net | Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI on Derivative	(5,940)	5,002	(1,903)	(5,406)
Gain (Loss) Reclassified from AOCI into Income	(76)	60	600	1,188
Cost of sales | Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI on Derivative	1,256	1,399	8,822	1,466
Gain (Loss) Reclassified from AOCI into Income	(1,256)	(1,399)	(8,822)	(1,466)
Interest income and other, net | Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI on Derivative	(2,000)	1,570	1,031	181
Gain (Loss) Reclassified from AOCI into Income	$ (1,290)	$ 1,529	$ 2,077	$ 973

Derivatives Instruments - Der_2

Derivatives Instruments - Derivative Instruments Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Other operating income (expense), net | Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in Income on Derivative	$ (137)	$ (250)	$ 193	$ (3,791)

Derivatives Instruments - After

Derivatives Instruments - After-tax Amounts of Unrealized Gain in AOCL Related to Hedge Derivatives (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Jun. 29, 2019	Dec. 31, 2018	Sep. 29, 2018	Jun. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Stockholder's equity	$ 639,008	$ 666,566	$ 706,871	$ 776,856	$ 738,939	$ 693,756
Unrealized gain on derivative
Derivative [Line Items]
Stockholder's equity	(3,640)		(11,622)	$ (317)		$ 619
Cash Flow Hedging | Unrealized gain on derivative | Interest rate swaps
Derivative [Line Items]
Stockholder's equity	(650)		1,663
Cash Flow Hedging | Unrealized gain on derivative | Foreign exchange forward contracts
Derivative [Line Items]
Stockholder's equity	$ (2,990)		$ (13,285)

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 28, 2019	Dec. 31, 2018
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 62,762	$ 108,966
Fixed-rate long-term debt	580,068	585,824
Variable-rate long-term debt	650,824	599,221
Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	62,762	108,966
Fixed-rate long-term debt	0	0
Variable-rate long-term debt	0	0
Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Fixed-rate long-term debt	448,325	541,267
Variable-rate long-term debt	653,766	602,652
Interest rate swaps | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0	2,131
Derivative liabilities	834
Interest rate swaps | Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0	0
Interest rate swaps | Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0	2,131
Derivative liabilities	834
Foreign exchange forward contracts | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	949	7
Derivative liabilities	4,417	19,873
Foreign exchange forward contracts | Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0	0
Derivative liabilities	0	0
Foreign exchange forward contracts | Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	949	7
Derivative liabilities	$ 4,417	$ 19,873

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 666,566	$ 738,939	$ 706,871	$ 693,756
Total other comprehensive income	(12,128)	6,510	1,199	(4,008)
Ending balance	639,008	776,856	639,008	776,856
Unrecognized components of employee benefit plans, net of tax
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(135,590)	(81,638)
Income tax on reclassifications			(1,804)	(2,028)
Foreign currency adjustments, net of tax of $75			(214)	0
Total other comprehensive income			6,122	7,193
Ending balance	(129,468)	(74,445)	(129,468)	(74,445)
Tax effects of foreign translation adjustment			75	0
Amortization of losses
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassifications to earnings			7,829	8,907
Amortization of prior service costs
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassifications to earnings			311	429
Amortization of negative plan amendment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassifications to earnings			0	(115)
Unrealized gain (loss) on derivative instruments, net of tax
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(11,622)	619
Other comprehensive income (loss) before reclassifications			5,713	(664)
Income tax on other comprehensive income (loss)			(1,446)	281
Income tax on reclassifications			(1,702)	30
Total other comprehensive income			7,982	(936)
Ending balance	(3,640)	(317)	(3,640)	(317)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(8,485)	4,868
Total other comprehensive income			(12,905)	(10,265)
Ending balance	(21,390)	(5,397)	(21,390)	(5,397)
Tax effects of foreign translation adjustment			0	0
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(142,370)	(86,669)	(155,697)	(76,151)
Total other comprehensive income	(12,128)	6,510	1,199	(4,008)
Ending balance	$ (154,498)	$ (80,159)	(154,498)	(80,159)
Interest rate swaps | Unrealized gain (loss) on derivative instruments, net of tax
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassifications to earnings			(728)	112
Foreign exchange forward contracts | Unrealized gain (loss) on derivative instruments, net of tax
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassifications to earnings			$ 6,145	$ (695)

Stockholder's Equity - Stockho

Stockholder's Equity - Stockholder's Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 15, 2019	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ 666,566	$ 738,939	$ 706,871	$ 693,756
Net income (loss)		(14,216)	37,936	(51,183)	115,781
Other comprehensive income (loss), net of tax		(12,128)	6,510	1,199	(4,008)
Preferred stock converted to common stock		0		0
Preferred stock converted to common stock (in shares)	13,400,000
Issuance of common stock under incentive stock plans		0	109	0	452
Stock-based compensation		2,240	3,647	5,696	10,146
Repurchase of common shares		(4)	(3,255)	(5,830)	(17,784)
Common stock dividends		0	(3,580)	(7,395)	(11,137)
Preferred stock dividends		(3,450)	(3,450)	(10,350)	(10,350)
Ending balance		$ 639,008	$ 776,856	$ 639,008	$ 776,856
Common stock dividends (in dollars per share)		$ 0	$ 0.07	$ 0.14	$ 0.21
Preferred stock dividends (in dollars per share)		$ 2	$ 2	$ 6	$ 6
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ 498	$ 512	$ 493	$ 517
Beginning balance (in shares)		49,848,087	51,217,595	49,291,130	51,717,142
Preferred stock converted to common stock		$ 133		$ 133
Preferred stock converted to common stock (in shares)		13,361,678		13,361,678
Issuance of common stock under incentive stock plans		$ 0	$ 0	$ 10	$ 3
Issuance of common stock under incentive stock plans (in shares)		953	414	980,968	302,976
Repurchase of common shares		$ 1	$ (1)	$ (4)	$ (9)
Repurchase of common stock (in shares)		93	(157,054)	(422,965)	(959,163)
Ending balance (in shares)		63,210,811	51,060,955	63,210,811	51,060,955
Ending balance		$ 632	$ 511	$ 632	$ 511
Preferred Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ 17	$ 17	$ 17	$ 17
Beginning balance (in shares)		1,725,000	1,725,000	1,725,000	1,725,000
Preferred stock converted to common stock		$ (17)		$ (17)
Preferred stock converted to common stock (in shares)		(1,725,000)		(1,725,000)
Ending balance (in shares)		0	1,725,000	0	1,725,000
Ending balance		$ 0	$ 17	$ 0	$ 17
Additional Paid in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		397,115	395,326	399,490	392,353
Preferred stock converted to common stock		(116)		(116)
Issuance of common stock under incentive stock plans		0	109	(10)	449
Stock-based compensation		2,240	3,647	5,696	10,146
Repurchase of common shares		(5)	(223)	(5,826)	(4,089)
Ending balance		399,234	398,859	399,234	398,859
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		411,306	429,753	462,568	377,020
Net income (loss)		(14,216)	37,936	(51,183)	115,781
Repurchase of common shares			(3,031)		(13,686)
Common stock dividends		0	(3,580)	(7,395)	(11,137)
Preferred stock dividends		(3,450)	(3,450)	(10,350)	(10,350)
Ending balance		393,640	457,628	393,640	457,628
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		(142,370)	(86,669)	(155,697)	(76,151)
Other comprehensive income (loss), net of tax		(12,128)	6,510	1,199	(4,008)
Ending balance		$ (154,498)	$ (80,159)	$ (154,498)	$ (80,159)

Stockholder's Equity - Narrati

Stockholder's Equity - Narrative (Details) - USD ($)	Aug. 15, 2019	Aug. 04, 2016	Sep. 29, 2018	Sep. 28, 2019	Jan. 29, 2018
Class of Stock [Line Items]
Preferred stock converted to common stock (in shares)	13,400,000
Amount authorized under share repurchase program					$ 100,000,000
Shares repurchased and retired (in shares)			802,040
Shares repurchased and retired (in dollars per share)			$ 18.32
Shares repurchased and retired			$ 15,000,000
Amount available under share repurchase program				$ 60,000,000
Series A Preferred Stock
Class of Stock [Line Items]
Issuance of preferred stock (in shares)		1,725,000
Dividend rate		8.00%
Public offering price (in dollars per share)		$ 100
Net proceeds from issuance of preferred stock		$ 167,000,000
Threshold trading days averaging period		20 days
Liquidation preference (in dollars per share)		$ 100
Common stock less than $12.91 | Series A Preferred Stock
Class of Stock [Line Items]
Applicable market value (in dollars per share)		$ 12.91
Conversion rate		7.7459

Earnings Per Share of Common _3

Earnings Per Share of Common Stock - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Earnings Per Share [Abstract]
Net income (loss)	$ (14,353)	$ 29,967	$ (61,614)	$ 92,352
Preferred Stock dividends	(1,777)	(3,441)	(8,582)	(10,284)
Income (loss) from continuing operations attributable to common stockholders	(16,130)	26,526	(70,196)	82,068
Income (loss) from discontinued operations	(137)	(7,969)	(10,431)	(23,429)
Net Income (Loss) Available to Common Stockholders	$ (15,993)	$ 34,495	$ (59,765)	$ 105,497
Shares used for determining basic earnings per share of common stock (in shares)	56,089,839	50,603,498	51,576,123	51,005,206
Dilutive effect of:
Stock options (in shares)	0	3,620	0	4,127
Performance and restricted stock (in shares)	0	1,266,588	0	1,297,024
Preferred stock (in shares)	0	11,371,718	0	11,371,718
Shares used for determining diluted earnings per share of common stock (in shares)	56,089,839	63,245,424	51,576,123	63,678,075
Basic per share amounts
Income (loss) from continuing operations (in dollars per share)	$ (0.29)	$ 0.52	$ (1.36)	$ 1.61
Income (loss) from discontinued operations (in dollars per share)	0	0.16	0.20	0.46
Net income per common share-basic (in dollars per share)	(0.29)	0.68	(1.16)	2.07
Diluted per share amounts
Income (loss) from continuing operations (in dollars per share)	(0.29)	0.47	(1.36)	1.45
Income (loss) from discontinued operations (in dollars per share)	0	0.13	0.20	0.37
Net income per common share-diluted (in dollars per share)	$ (0.29)	$ 0.60	$ (1.16)	$ 1.82

Earnings Per Share of Common _4

Earnings Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive instruments (in shares)	913,963	274,871	728,822	661,760
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive instruments (in shares)	225,934	263,184	225,934	263,184
Performance and restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive instruments (in shares)	688,029	11,687	502,888	398,576

Incentive Stock Plans - Narrati

Incentive Stock Plans - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Mar. 30, 2019	Sep. 28, 2019	Sep. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation cost		$ 5,696	$ 10,146
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Performance-Based Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of performance shares adjusted (up or down)		25.00%
Settlement percentage	246.00%
Shares issued (in shares)	923,211
Performance-Based Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target payout percentage		0.00%
Final payout range		0.00%
Performance-Based Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target payout percentage		200.00%
Final payout range		250.00%

Incentive Stock Plans - Schedul

Incentive Stock Plans - Schedule of Outstanding Awards (Details)	9 Months Ended
	Sep. 28, 2019$ / sharesshares
Stock Options
Stock Options, Options
Beginning Balance (in shares) | shares	286,613
Granted (in shares) | shares	0
Forfeited (in shares) | shares	0
Exercised or settled (in shares) | shares	0
Expired or cancelled (in shares) | shares	(60,679)
Ending Balance (in shares) | shares	225,934
Stock Options, Weighted Average Exercise Price
Beginning balance (in dollars per share) | $ / shares	$ 34.23
Granted (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	0
Exercised or settled (in dollars per share) | $ / shares	0
Expired or cancelled (in dollars per share) | $ / shares	26.82
Ending balance (in dollars per share) | $ / shares	$ 36.22
Restricted Stock and Stock Units
Awards Other than Options, Awards
Beginning Balance (in shares) | shares	917,098
Granted (in shares) | shares	395,777
Forfeited (in shares) | shares	(9,533)
Exercised or settled (in shares) | shares	(458,748)
Expired or cancelled (in shares) | shares	0
Ending Balance (in shares) | shares	844,594
Awards Other than Options, Weighted Average Grant Date Fair Value
Beginning balances (in dollars per share) | $ / shares	$ 13.71
Granted (in dollars per share) | $ / shares	11.99
Forfeited (in dollars per share) | $ / shares	15.22
Exercised or settled (in dollars per share) | $ / shares	10.64
Expired or cancelled (in dollars per share) | $ / shares	0
Ending balances (in dollars per share) | $ / shares	$ 14.56
Performance-Based Stock Units
Awards Other than Options, Awards
Beginning Balance (in shares) | shares	1,325,894
Granted (in shares) | shares	400,921
Forfeited (in shares) | shares	(7,501)
Exercised or settled (in shares) | shares	(520,167)
Expired or cancelled (in shares) | shares	0
Ending Balance (in shares) | shares	1,199,147
Awards Other than Options, Weighted Average Grant Date Fair Value
Beginning balances (in dollars per share) | $ / shares	$ 14.69
Granted (in dollars per share) | $ / shares	14.98
Forfeited (in dollars per share) | $ / shares	16.92
Exercised or settled (in dollars per share) | $ / shares	7.80
Expired or cancelled (in dollars per share) | $ / shares	0
Ending balances (in dollars per share) | $ / shares	$ 17.76

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Pension
Defined Benefit Plans Disclosure [Line Items]
Service cost	$ 2,411	$ 2,845	$ 7,339	$ 8,605
Interest cost	9,199	7,907	27,949	23,885
Expected return on plan assets	(13,110)	(13,302)	(40,475)	(40,166)
Amortization of prior service cost	142	143	426	429
Amortization of losses	2,590	2,912	7,768	8,735
Amortization of negative plan amendment	0	0	0	0
Total net periodic benefit cost	1,232	505	3,007	1,488
Postretirement
Defined Benefit Plans Disclosure [Line Items]
Service cost	456	521	1,387	1,978
Interest cost	352	217	1,072	675
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	(38)	0	(115)	0
Amortization of losses	20	57	61	172
Amortization of negative plan amendment	0	0	0	0
Total net periodic benefit cost	$ 790	$ 795	$ 2,405	$ 2,825

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Income Tax Disclosure [Abstract]
Effective rate	(24.00%)	19.00%	(30.00%)	24.00%

Segment Information - Segment

Segment Information - Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019USD ($)	Sep. 29, 2018USD ($)	Sep. 28, 2019USD ($)segment	Sep. 29, 2018USD ($)	Dec. 31, 2018USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			5
Net sales	$ 416,129	$ 501,298	$ 1,307,422	$ 1,475,649
Operating income (loss)	(8,564)	42,940	(51,483)	131,032
Assets Held for Sale	84,298		84,298		$ 93,707
Total Assets	2,596,694		2,596,694		2,679,086
Operating Segments | High Purity Cellulose
Segment Reporting Information [Line Items]
Net sales	267,741	307,987	822,541	875,619
Operating income (loss)	6,745	33,922	10,665	83,288
Identifiable assets, excluding assets held for sale	1,585,594		1,585,594		1,643,092
Operating Segments | Forest Products
Segment Reporting Information [Line Items]
Net sales	65,460	85,955	221,837	282,237
Operating income (loss)	(5,076)	7,986	(26,664)	35,158
Identifiable assets, excluding assets held for sale	169,365		169,365		166,801
Operating Segments | Pulp
Segment Reporting Information [Line Items]
Operating income (loss)	(2,061)	12,825	2,700	37,373
Identifiable assets, excluding assets held for sale	33,284		33,284		41,087
Operating Segments | Paper
Segment Reporting Information [Line Items]
Net sales	73,766	78,373	217,774	238,058
Operating income (loss)	165	13,648	1,136	23,465
Identifiable assets, excluding assets held for sale	223,302		223,302		240,427
Operating Segments | Corporate
Segment Reporting Information [Line Items]
Operating income (loss)	(8,337)	(25,441)	(39,320)	(48,252)
Identifiable assets, excluding assets held for sale	500,851		500,851		$ 493,972
Eliminations
Segment Reporting Information [Line Items]
Net sales	(16,997)	(17,416)	(49,476)	(53,358)
Cellulose Specialties | Operating Segments | High Purity Cellulose
Segment Reporting Information [Line Items]
Net sales	180,718	217,538	563,604	625,864
Commodity Products | Operating Segments | High Purity Cellulose
Segment Reporting Information [Line Items]
Net sales	67,348	56,448	197,492	153,220
Other sales | Operating Segments | High Purity Cellulose
Segment Reporting Information [Line Items]
Net sales	19,675	34,001	61,445	96,535
Other sales | Operating Segments | Forest Products
Segment Reporting Information [Line Items]
Net sales	16,265	17,242	50,982	53,551
Lumber | Operating Segments | Forest Products
Segment Reporting Information [Line Items]
Net sales	49,195	68,713	170,855	228,686
High-yield pulp | Operating Segments | Pulp
Segment Reporting Information [Line Items]
Net sales	26,159	46,399	94,746	133,093
Paperboard | Operating Segments | Paper
Segment Reporting Information [Line Items]
Net sales	53,818	50,675	151,161	149,100
Newsprint | Operating Segments | Paper
Segment Reporting Information [Line Items]
Net sales	$ 19,948	$ 27,698	$ 66,613	$ 88,958

Commitments and Contingencies

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	Nov. 04, 2019	Sep. 28, 2019
Guarantor Obligations [Line Items]
Contractual financial obligation		$ 46,914
LignoTech Florida
Guarantor Obligations [Line Items]
Ownership percentage		45.00%
Borregaard ASA | LignoTech Florida
Guarantor Obligations [Line Items]
Ownership percentage		55.00%
Financial Standby Letter of Credit
Guarantor Obligations [Line Items]
Guarantees		$ 36,000
Surety Bonds
Guarantor Obligations [Line Items]
Guarantees		86,000
Contract Guarantee
Guarantor Obligations [Line Items]
Guarantees		$ 33,000
Matane Plant | Discontinued Operations, Disposed of by Sale | Subsequent Event
Guarantor Obligations [Line Items]
Contractual financial obligation	$ 117,000

Commitments and Contingencies -

Commitments and Contingencies - Purchase Obligations (Details) $ in Thousands	Sep. 28, 2019USD ($)
Commitments and Contingencies Disclosure [Abstract]
Remainder of 2019	$ 2,818
2020	17,342
2021	11,399
2022	7,606
2023	2,524
Thereafter	5,225
Total	$ 46,914

Supplemental Disclosures of C_3

Supplemental Disclosures of Cash Flows Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018
Cash paid (received) during the period:
Interest	$ 37,126	$ 35,000
Income taxes	1,858	12,834
Non-cash investing and financing activities:
Capital assets purchased on account	$ 15,732	$ 8,221