Magnera (MAGN) 10-K 24 Feb 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Feb. 21, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Trading Symbol	GLT
Entity Registrant Name	GLATFELTER P H CO
Entity Central Index Key	41,719
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		43,558,387
Entity Public Float			$ 839.8

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 390,865	$ 405,301	$ 406,413	$ 402,218	$ 412,852	$ 410,803	$ 417,469	$ 419,960	$ 1,604,797	$ 1,661,084	$ 1,802,415
Energy and related sales, net									6,141	5,664	7,927
Total revenues									1,610,938	1,666,748	1,810,342
Costs of products sold									1,392,335	1,463,783	1,575,188
Gross profit	$ 56,867	$ 61,170	$ 42,723	$ 57,843	$ 58,116	$ 32,833	$ 52,108	$ 59,908	218,603	202,965	235,154
Selling, general and administrative expenses									190,694	127,706	133,235
Losses (gains) on dispositions of plant, equipment and timberlands, net									216	(21,113)	(4,861)
Operating income									27,693	96,372	106,780
Non-operating income (expense)
Interest expense									15,822	17,464	18,921
Interest income									206	283	159
Other, net									(1,271)	(615)	(635)
Total non-operating expense									(16,887)	(17,796)	(19,397)
Income before income taxes									10,806	78,576	87,383
Income tax provision (benefit)									(10,748)	14,001	18,137
Net income									$ 21,554	$ 64,575	$ 69,246
Earnings per share
Basic									$ 0.49	$ 1.49	$ 1.60
Diluted									0.49	1.47	1.57
Cash dividends declared per common share									$ 0.50	$ 0.48	$ 0.44
Weighted average shares outstanding
Basic									43,558	43,397	43,201
Diluted									44,129	43,942	44,066

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 21,554	$ 64,575	$ 69,246
Foreign currency translation adjustments	(27,407)	(38,817)	(49,365)
Net change in:
Deferred gains (losses) on cash flow hedges, net of taxes of $(335), $880 and $(1,281), respectively	1,725	(2,581)	3,297
Unrecognized retirement obligations, net of taxes of $(7,247), $(2,920) and $20,730, respectively	11,562	5,782	(33,445)
Other comprehensive loss	(14,120)	(35,616)	(79,513)
Comprehensive income (loss)	$ 7,434	$ 28,959	$ (10,267)

Consolidated Statements of Com4

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Taxes on deferred gains (losses) on cash flow hedges	$ (335)	$ 880	$ (1,281)
Taxes on unrecognized retirement obligations	$ (7,247)	$ (2,920)	$ 20,730

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 55,444	$ 105,304
Accounts receivable, net	152,989	167,199
Inventories	249,669	247,214
Prepaid expenses and other current assets	36,157	32,650
Total current assets	494,259	552,367
Plant, equipment and timberlands, net	775,898	698,864
Goodwill	73,094	76,056
Intangible assets, net	56,259	63,057
Other assets	121,749	110,072
Total assets	1,521,259	1,500,416
Liabilities and Shareholders' Equity
Current portion of long-term debt	8,961	7,366
Accounts payable	164,345	172,735
Dividends payable	5,455	5,231
Environmental liabilities	25,000	12,544
Other current liabilities	119,250	106,444
Total current liabilities	323,011	304,320
Long-term debt	363,647	353,296
Deferred income taxes	54,995	76,458
Other long-term liabilities	125,780	103,095
Total liabilities	867,433	837,169
Commitments and contingencies
Shareholders’ equity
Common stock	544	544
Capital in excess of par value	57,917	54,912
Retained earnings	962,884	963,143
Accumulated other comprehensive loss	(204,606)	(190,486)
Shareholders' equity before treasury stock	816,739	828,113
Less cost of common stock in treasury	(162,913)	(164,866)
Total shareholders’ equity	653,826	663,247
Total liabilities and shareholders’ equity	$ 1,521,259	$ 1,500,416

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts	$ 1,719	$ 2,239
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	54,361,980	54,361,980
Treasury stock, shares	10,812,341	10,941,944

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities
Net income	$ 21,554	$ 64,575	$ 69,246
Adjustments to reconcile to net cash provided by operations:
Depreciation, depletion and amortization	65,826	63,236	70,555
Amortization of debt issue costs and original issue discount	1,153	1,184	1,315
Pension expense, net of unfunded benefits paid	11,180	7,383	5,173
Charge for impairment of intangible asset		1,200	3,262
Deferred income tax benefit	(22,055)	(1,902)	(9,419)
Losses (gains) on dispositions of plant, equipment and timberlands, net	216	(21,113)	(4,861)
Share-based compensation	5,889	7,244	7,859
Change in operating assets and liabilities
Accounts receivable	8,372	(13,312)	(5,404)
Inventories	(10,778)	(8,054)	(21,456)
Prepaid and other current assets	(2,430)	5,506	(3,521)
Accounts payable	(8,174)	26,042	(4,175)
Accruals and other current liabilities	43,195	(2,186)	(12,802)
Other	2,162	3,940	3,805
Net cash provided by operating activities	116,110	133,743	99,577
Investing activities
Expenditures for purchases of plant, equipment and timberlands	(160,158)	(99,889)	(66,046)
Proceeds from disposals of plant, equipment and timberlands, net	70	24,459	5,072
Acquisition, net of cash acquired		(224)	(8,015)
Other	(800)	(1,600)	(600)
Net cash used by investing activities	(160,888)	(77,254)	(69,589)
Financing activities
Net borrowings under (repayments of) revolving credit facility	2,891	(22,294)	(30,720)
Payments of borrowing costs	(136)	(1,329)
Proceeds from term loans	19,428	2,873	12,592
Repayment of term loans	(8,205)	(5,229)
Repurchases of common stock			(12,180)
Payments of dividends	(21,589)	(20,443)	(18,696)
Proceeds from government grants	5,582	421
Payments related to share-based compensation awards and other	(990)	(2,015)	(1,877)
Net cash used by financing activities	(3,019)	(48,016)	(50,881)
Effect of exchange rate changes on cash	(2,063)	(3,006)	(2,152)
Net increase (decrease) in cash and cash equivalents	(49,860)	5,467	(23,045)
Cash and cash equivalents at the beginning of period	105,304	99,837	122,882
Cash and cash equivalents at the end of period	55,444	105,304	99,837
Cash paid for:
Interest, net of amounts capitalized	14,569	16,256	17,643
Income taxes, net	$ 14,020	$ 15,849	$ 24,139

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Beginning Balance at Dec. 31, 2013	$ 684,476	$ 544	$ 53,940	$ 869,329	$ (75,357)	$ (163,980)
Net income	69,246			69,246
Other comprehensive loss	(79,513)				(79,513)
Comprehensive income (loss)	(10,267)
Tax effect on exercise of stock awards	(14)		(14)
Cash dividends declared	(19,107)			(19,107)
Share-based compensation expense	4,738		4,738
Repurchase of common shares	(12,180)					(12,180)
Delivery of treasury shares
RSUs and PSAs	(1,758)		(4,121)			2,363
401 (k) plans	3,093		1,318			1,775
Employee stock options exercised — net	128		(1,519)			1,647
Ending Balance at Dec. 31, 2014	649,109	544	54,342	919,468	(154,870)	(170,375)
Net income	64,575			64,575
Other comprehensive loss	(35,616)				(35,616)
Comprehensive income (loss)	28,959
Tax effect on exercise of stock awards	843		843
Cash dividends declared	(20,900)			(20,900)
Share-based compensation expense	4,403		4,403
Delivery of treasury shares
RSUs and PSAs	(1,976)		(5,078)			3,102
401 (k) plans	2,848		838			2,010
Employee stock options exercised — net	(39)		(436)			397
Ending Balance at Dec. 31, 2015	663,247	544	54,912	963,143	(190,486)	(164,866)
Net income	21,554			21,554
Other comprehensive loss	(14,120)				(14,120)
Comprehensive income (loss)	7,434
Tax effect on exercise of stock awards	58		58
Cash dividends declared	(21,813)			(21,813)
Share-based compensation expense	5,889		5,889
Delivery of treasury shares
RSUs and PSAs	(751)		(2,375)			1,624
Employee stock options exercised — net	(238)		(567)			329
Ending Balance at Dec. 31, 2016	$ 653,826	$ 544	$ 57,917	$ 962,884	$ (204,606)	$ (162,913)

Consolidated Statements of Sha9

Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Per share amount of cash dividends declared	$ 0.50	$ 0.48	$ 0.44
Retained Earnings [Member]
Per share amount of cash dividends declared	$ 0.50	$ 0.48	$ 0.44

Organization

Organization	12 Months Ended
	Dec. 31, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization	1. ORGANIZATION P. H. Glatfelter Company and subsidiaries (“Glatfelter”) is a manufacturer of specialty papers and fiber-based engineered materials. Headquartered in York, PA, U.S. operations include facilities in Spring Grove, PA and Chillicothe and Fremont, OH. International operations include facilities in Canada, Germany, France, the United Kingdom and the Philippines, and sales and distribution offices in Russia and China. Our products are marketed worldwide, either through wholesale paper merchants, brokers and agents, or directly to customers.

Accounting Policies

Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Accounting Policies	2. ACCOUNTING POLICIES Principles of Consolidation The consolidated financial statements include the accounts of Glatfelter and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated. Accounting Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingencies as of the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Management believes the estimates and assumptions used in the preparation of these consolidated financial statements are reasonable, based upon currently available facts and known circumstances, but recognizes that actual results may differ from those estimates and assumptions. Cash and Cash Equivalents We classify all highly liquid instruments with an original maturity of three months or less at the time of purchase as cash equivalents. Inventories Inventories are stated at the lower of cost or market. Raw materials, in-process and finished inventories of our U.S. manufacturing operations are valued using the last-in, first-out (LIFO) method, and the supplies inventories are valued principally using the average-cost method. Inventories at our foreign operations are valued using the average cost method. Plant, Equipment and Timberlands For financial reporting purposes, depreciation is computed using the straight-line method over the estimated useful lives of the respective assets. The range of estimated service lives used to calculate financial reporting depreciation for principal items of plant and equipment are as follows: Buildings 15 – 45 Years Machinery and equipment 5 – 40 Years Other 3 – 25 Years Maintenance and Repairs Maintenance and repairs costs are charged to income and major renewals and betterments are capitalized. At the time property is retired or sold, the net carrying value is eliminated and any resultant gain or loss is included in income. Valuation of Long-lived Assets, Intangible Assets and Goodwill We evaluate long-lived assets for impairment when a specific event indicates that the carrying value of an asset may not be recoverable. Recoverability is assessed based on estimates of future cash flows expected to result from the use and eventual disposition of the asset. If the sum of expected undiscounted cash flows is less than the carrying value of the asset, the asset’s fair value is estimated and an impairment loss is recognized for the amount by which the carrying value exceeds the estimated fair value. Goodwill and non-amortizing tradename intangible assets are reviewed, on a discounted cash flow basis, during the third quarter of each year for impairment or more frequently if impairment indicators are present. Impairment losses, if any, are recognized for the amount by which the carrying value of the reporting unit exceeds its fair value. The carrying value of a reporting unit is defined using an enterprise premise which is generally determined by the difference between the unit’s assets and operating liabilities. Asset Retirement Obligations In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) No. 410, Asset Retirement and Environmental Obligations , we accrue asset retirement obligations in the period in which obligations relating to future asset retirements are incurred and when a reasonable estimate of fair value can be determined. Under these standards, costs are to be accrued at estimated fair value, and a related long-lived asset is capitalized. Over time, the liability is accreted to its settlement value and the capitalized cost is depreciated over the useful life of the related asset for which the obligation exists. Upon settlement of the liability, we recognize a gain or loss for any difference between the settlement amount and the liability recorded. Income Taxes Income taxes are determined using the asset and liability method of accounting for income taxes in accordance with FASB ASC 740 Income Taxes (“ASC 740”). Under ASC 740, tax expense includes U.S. and international income taxes plus the provision for U.S. taxes on undistributed earnings of international subsidiaries not deemed to be permanently invested. Tax credits and other incentives reduce tax expense in the year the credits are claimed. Certain items of income and expense are not reported in tax returns and financial statements in the same year. The tax effect of such temporary differences is reported in deferred income taxes. Deferred tax assets are recognized if it is more likely than not that the assets will be realized in future years. We establish a valuation allowance for deferred tax assets for which realization is not more likely than not. Significant judgment is required in determining our worldwide provision for income taxes and recording the related assets and liabilities. In the ordinary course of our business, there are many transactions and calculations where the ultimate tax determination is less than certain. We and our subsidiaries are examined by various Federal, State, and foreign tax authorities. We regularly assess the potential outcomes of these examinations and any future examinations for the current or prior years in determining the adequacy of our provision for income taxes. We continually assess the likelihood and amount of potential adjustments and record any necessary adjustments in the period in which the facts that give rise to a revision become known. Investment tax credits are accounted for by the flow-through method, which results in recognition of the benefit in the year in which the credit become available. Treasury Stock Common stock purchased for treasury is recorded at cost. At the date of subsequent reissue, the treasury stock account is reduced by the cost of such stock on the weighted-average cost basis. Foreign Currency Translation Foreign currency translation gains and losses and the effect of exchange rate changes on transactions designated as hedges of net foreign investments are included as a component of other comprehensive income (loss). Transaction gains and losses are included in income in the period in which they occur. Revenue Recognition We recognize revenue on product sales when the customer takes title and assumes the risks and rewards of ownership. Estimated costs for sales incentives, discounts and sales returns and allowances are recorded as sales deductions in the period in which the related revenue is recognized. Revenue from energy sales is recognized when electricity is delivered to the customer. Certain costs associated with the production of electricity, such as fuel, labor, depreciation and maintenance are netted against energy sales for presentation on the consolidated statements of income. Revenue from renewable energy credits is recorded under the caption “Energy and related sales, net” in the consolidated statements of income and is recognized when all risks, rights and rewards to the certificate are transferred to the counterparty. Environmental Liabilities Accruals for losses associated with environmental obligations are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated based on existing legislation and remediation technologies. These accruals are adjusted periodically as assessment and remediation actions continue and/or further legal or technical information develops. Such undiscounted liabilities are exclusive of any insurance or other claims against third parties. Environmental costs are capitalized if the costs extend the life of the asset, increase its capacity and/or mitigate or prevent contamination from future operations. Recoveries of environmental remediation costs from other parties, including insurance carriers, are recorded as assets when their receipt is assured beyond a reasonable doubt. Earnings Per Share Basic earnings per share is computed by dividing net income by the weighted-average common shares outstanding during the respective periods. Diluted earnings per share is computed by dividing net income by the weighted-average common shares and common share equivalents outstanding during the period. The dilutive effect of common share equivalents is considered in the diluted earnings per share computation using the treasury stock method. Financial Derivatives and Hedging Activities We use financial derivatives to manage exposure to changes in foreign currencies. In accordance with FASB ASC 815 Derivatives and Hedging (“ASC 815”), we record all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether we have elected to designate a derivative in a hedging relationship and apply hedge accounting, and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Cash Flow Hedges The effective portion of the gain or loss on those derivative instruments designated and qualifying as a hedge of the exposure to variability in expected future cash flows related to forecasted transactions is deferred and reported as a component of accumulated other comprehensive income (loss). Deferred gains or losses are reclassified to our results of operations at the time the hedged forecasted transaction is recorded in our results of operations. The effectiveness of cash flow hedges is assessed at inception and quarterly thereafter. If the instrument becomes ineffective or it becomes probable that the originally forecasted transaction will not occur, the related change in fair value of the derivative instrument is also reclassified from accumulated other comprehensive income (loss) and recognized in earnings. Fair Value of Financial Instruments Under the accounting for fair value measurements and disclosures, a fair value hierarchy was established that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The three levels of the fair value hierarchy are described below: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 - Inputs that are both significant to the fair value measurement and unobservable. Recently Issued Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-09, Compensation – Stock Compensation (Topic 718) Improvements to Employee Share-Based Payment Accounting designed to simplify certain aspects of accounting for share-based awards. The new ASU requires entities to recognize as a component of income tax expense all excess tax benefits or deficiencies arising from the difference between compensation costs recognized and the intrinsic value at the time an option is exercised or, in the case of restricted stock and similar awards, the fair value upon vesting of an award. Previously such differences were recognized in additional paid in capital as part of an “APIC pool.” In addition, the ASU also requires entities to exclude excess tax benefits and tax deficiencies from the calculation of common share equivalents for purposes of calculating earnings per share. The new standard is required to be adopted, either prospectively or retrospectively, in the first quarter of 2017. We do not believe the adoption of this standard will have a material impact on our reported results of operations or financial position. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers In June 2016, the FASB issued ASU No. 2016-13 Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Acquisitions	3. ACQUISITIONS On October 1, 2014, we completed the acquisition of all of the outstanding equity of Spezialpapierfabrik Oberschmitten GmbH (“SPO”) from FINSPO Beteiligungs-GmbH for $8.0 million. SPO had annual sales of approximately $33 million in 2014. SPO, located near Frankfurt, Germany, primarily produces highly technical papers for a wide range of capacitors used in consumer and industrial products; insulation papers for cables and transformers; and materials for industrial power inverters, electromagnetic current filters and electric rail traction. SPO also produces glassine products, which are used in cosmetics packaging, food packaging, and pharmaceutical dosage bags. SPO is operated as part of the Composite Fibers business unit, and complements our technical specialties products.

Energy and Related Sales, Net

Energy and Related Sales, Net	12 Months Ended
	Dec. 31, 2016
Text Block [Abstract]
Energy and Related Sales, Net	4. ENERGY AND RELATED SALES, NET We sell excess power generated by the Spring Grove, PA facility. We also sell renewable energy credits generated by the Spring Grove, PA and Chillicothe, OH facilities representing sales of certified credits earned related to burning renewable sources of energy such as black liquor and wood waste. The following table summarizes this activity for each of the past three years: Year ended December 31 In thousands 2016 2015 2014 Energy sales $ 3,613 $ 5,315 $ 11,886 Costs to produce (3,972 ) (4,428 ) (6,204 ) Net (359 ) 887 5,682 Renewable energy credits 6,500 4,777 2,245 Total $ 6,141 $ 5,664 $ 7,927

Gain on Dispositions of Plant,

Gain on Dispositions of Plant, Equipment and Timberlands	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Gain on Dispositions of Plant, Equipment and Timberlands	5. GAIN ON DISPOSITIONS OF PLANT, EQUIPMENT AND TIMBERLANDS During 2016, 2015 and 2014, we completed the following sales of assets: Dollars in thousands Acres Proceeds Gain (loss) 2016 Other n/a 70 (216 ) Total $ 70 $ (216 ) 2015 Timberlands 15,628 $ 23,917 $ 20,867 Other n/a 542 246 Total $ 24,459 $ 21,113 2014 Timberlands 2,753 $ 5,062 $ 4,855 Other n/a 10 6 Total $ 5,072 $ 4,861

Asset Impairment Charges

Asset Impairment Charges	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Asset Impairment Charges	6. ASSET IMPAIRMENT CHARGES During 2015 and 2014, in connection with our annual test of potential impairment of indefinite lived intangible assets, we recorded $1.2 million and $3.3 million, respectively, of non-cash asset impairment charges. No such charges were recorded in 2016. The trade name intangible asset was acquired in connection with our Composite Fibers business unit’s 2013 Dresden acquisition. The charges were due to changes in the estimated fair value of the trade name, primarily driven by lower forecasted revenues associated with the business, an increase in discount rates related to Dresden’s business in Russia and Ukraine and this region’s political and economic instability. The fair value of the asset was estimated using a discounted cash flow model under a relief from royalty method. The significant assumptions used included projected financial performance and discount rates, which resulted in a Level 3 fair value classification. The charge is recorded in the accompanying consolidated statements of income under the caption “Selling, general and administrative expenses.” For additional information on Goodwill and Intangible Assets, see Note 14.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	7. EARNINGS PER SHARE The following table sets forth the details of basic and diluted earnings per share (EPS): Year ended December 31 In thousands, except per share 2016 2015 2014 Net income $ 21,554 $ 64,575 $ 69,246 Weighted average common shares outstanding used in basic EPS 43,558 43,397 43,201 Common shares issuable upon exercise of dilutive stock options and PSAs / RSUs 571 545 865 Weighted average common shares outstanding and common share equivalents used in diluted EPS 44,129 43,942 44,066 Earnings per share Basic $ 0.49 $ 1.49 $ 1.60 Diluted 0.49 1.47 1.57 The following table sets forth the potential common shares outstanding for stock options that were not included in the computation of diluted EPS for the period indicated, because their effect would be anti-dilutive: Year ended December 31 In thousands 2016 2015 2014 Potential common shares 596 678 277

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Accumulated Other Comprehensive Income	8. ACCUMULATED OTHER COMPREHENSIVE INCOME The following table sets forth details of the changes in accumulated other comprehensive income (losses) for the three years ended December 31, 2016, 2015 and 2014. In thousands Currency translation adjustments Unrealized gain (loss) on cash flow hedges Change in pensions Change in other postretirement defined benefit plans Total Balance at January 1, 2016 $ (73,041 ) $ (225 ) $ (120,714 ) $ 3,494 $ (190,486 ) Other comprehensive income before reclassifications (net of tax) (27,407 ) 1,247 (4,334 ) 2,086 (28,408 ) Amounts reclassified from accumulated other comprehensive income (net of tax) — 478 14,392 (582 ) 14,288 Net current period other comprehensive income (loss) (27,407 ) 1,725 10,058 1,504 (14,120 ) Balance at December 31, 2016 $ (100,448 ) $ 1,500 $ (110,656 ) $ 4,998 $ (204,606 ) Balance at January 1, 2015 $ (34,224 ) $ 2,356 $ (120,260 ) $ (2,742 ) $ (154,870 ) Other comprehensive income before reclassifications (net of tax) (38,817 ) 1,620 (12,995 ) 6,266 (43,926 ) Amounts reclassified from accumulated other comprehensive income (net of tax) — (4,201 ) 12,541 (30 ) 8,310 Net current period other comprehensive income (loss) (38,817 ) (2,581 ) (454 ) 6,236 (35,616 ) Balance at December 31, 2015 $ (73,041 ) $ (225 ) $ (120,714 ) $ 3,494 $ (190,486 ) Balance at January 1, 2014 $ 15,141 $ (941 ) $ (89,547 ) $ (10 ) $ (75,357 ) Other comprehensive income before reclassifications (net of tax) (49,365 ) 2,826 (40,266 ) (2,803 ) (89,608 ) Amounts reclassified from accumulated other comprehensive income (net of tax) — 471 9,553 71 10,095 Net current period other comprehensive income (loss) (49,365 ) 3,297 (30,713 ) (2,732 ) (79,513 ) Balance at December 31, 2014 $ (34,224 ) $ 2,356 $ (120,260 ) $ (2,742 ) $ (154,870 ) The following table sets forth the amounts reclassified from accumulated other comprehensive income (losses) for the years indicated. Year ended December 31 In thousands 2016 2015 2014 Description Line Item in Statements of Income Cash flow hedges (Note 19) (Gains) losses on cash flow hedges $ 551 $ (5,752 ) $ 655 Costs of products sold Tax expense (benefit) (73 ) 1,551 (184 ) Income tax provision Net of tax 478 (4,201 ) 471 Retirement plan obligations (Note 11) Amortization of deferred benefit pension plan items Prior service costs 2,026 2,300 2,503 Costs of products sold 672 762 830 Selling, general and administrative Actuarial losses 9,798 12,745 8,965 Costs of products sold 3,373 4,388 3,086 Selling, general and administrative Settlement recognition 7,306 — — Selling, general and administrative 23,175 20,195 15,384 Tax expense (benefit) (8,783 ) (7,654 ) (5,831 ) Income tax provision Net of tax 14,392 12,541 9,553 Amortization of deferred benefit other plan items Prior service costs (150 ) (230 ) (237 ) Costs of products sold (32 ) (50 ) (51 ) Selling, general and administrative Actuarial losses (621 ) 190 331 Costs of products sold (134 ) 41 71 Selling, general and administrative (937 ) (49 ) 114 Tax expense (benefit) 355 19 (43 ) Income tax provision Net of tax (582 ) (30 ) 71 Total reclassifications, net of tax $ 14,288 $ 8,310 $ 10,095

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	9. Income taxes are recognized for the amount of taxes payable or refundable for the current year and deferred tax liabilities and assets for the future tax consequences of events that have been recognized in our consolidated financial statements or tax returns. The effects of income taxes are measured based on enacted tax laws and rates. The provision for income taxes from operations consisted of the following: Year ended December 31 In thousands 2016 2015 2014 Current taxes Federal $ 2,216 $ 5,047 $ 3,291 State (1,112 ) (1,680 ) 238 Foreign 10,203 12,536 24,027 11,307 15,903 27,556 Deferred taxes and other Federal (24,411 ) (7,287 ) (3,975 ) State (1,723 ) 564 (147 ) Foreign 4,079 4,821 (5,297 ) (22,055 ) (1,902 ) (9,419 ) Income tax provision (benefit) $ (10,748 ) $ 14,001 $ 18,137 The following are the domestic and foreign components of pretax income (loss) from operations: Year ended December 31 In thousands 2016 2015 2014 United States $ (63,315 ) $ 2,382 $ 4,637 Foreign 74,121 76,194 82,746 Total pretax income $ 10,806 $ 78,576 $ 87,383 A reconciliation between the income tax provision, computed by applying the statutory federal income tax rate of 35% to income before income taxes, and the actual income tax provision is as follows: Year ended December 31 2016 2015 2014 Federal income tax provision at statutory rate 35.0 % 35.0 % 35.0 % State income taxes, net of federal income tax benefit (15.0 ) 0.3 0.2 Foreign income tax rate differential (96.3 ) (8.6 ) (5.0 ) Rate changes due to enacted legislation (6.7 ) – (2.2 ) Tax effect of credits (30.3 ) (1.9 ) (2.0 ) Provision for (resolution of ) tax matters 2.8 (2.1 ) 1.3 Permanent differences on non-U.S. earnings - (4.4 ) (2.8 ) Valuation allowance 7.1 0.4 (2.7 ) Other 3.9 (0.9 ) (1.0 ) Actual tax rate (99.5 )% 17.8 % 20.8 % The sources of deferred income taxes were as follows at December 31: In thousands 2016 2015 Reserves $ 4,625 $ 4,720 Environmental 20,868 7,211 Compensation 8,950 8,250 Post-retirement benefits 18,318 19,476 Research & development expenses 6,949 8,925 Inventories 1,464 3,445 Other 993 605 Tax carryforwards 14,438 8,413 Deferred tax assets 76,605 61,045 Valuation allowance (4,066 ) (3,773 ) Net deferred tax assets 72,539 57,272 Property (81,837 ) (84,009 ) Intangible assets (16,561 ) (17,748 ) Pension (29,041 ) (26,885 ) Deferred tax liabilities (127,439 ) (128,642 ) Net deferred tax liabilities $ (54,900 ) $ (71,370 ) Non-current deferred tax assets and liabilities are included in the following balance sheet captions: December 31 In thousands 2016 2015 Other assets $ 95 $ 5,088 Deferred income taxes 54,995 76,458 At December 31, 2016 we had federal, state and foreign tax net operating loss (“NOL”) carryforwards of $15.5 million, $77.8 million and $4.8 million, respectively. These NOL carryforwards are available to offset future taxable income, if any. The federal NOL carryforward expires in 2036, state NOLs expire at various times and in various amounts beginning in 2017 and through 2036. Certain foreign NOL carryforwards begin to expire after 2019. The state and foreign NOL carryforwards and federal tax credits on the income tax returns filed included unrecognized tax benefits taken in prior years. The NOLs for which a deferred tax asset is recognized for financial statement purposes in accordance with ASC 740 are presented net of these unrecognized tax benefits. In addition, we had various federal tax credit carryforwards totaling $2.9 million which begin to expire in 2035, state tax credit carryforwards totaling $0.2 million, which begin to expire in 2017, and foreign investment tax credits of $0.8 million which begin to expire after 2030. As of December 31, 2016 and 2015, we had a valuation allowance of $4.1 million and $3.8 million, respectively, against net deferred tax assets, primarily due to uncertainty regarding the ability to utilize state and foreign tax NOL carryforwards and certain state tax credits. In assessing the need for a valuation allowance, management considers all available positive and negative evidence in its analysis. Based on this analysis, we recorded a valuation allowance for the portion of deferred tax assets where the weight of available evidence indicated it is more likely than not that the deferred tax assets will not be realized. Tax credits and other incentives reduce tax expense in the year the credits are claimed. We recorded tax credits of $1.1 million, $1.5 million and $1.8 million in 2016, 2015 and 2014, respectively, related to research and development credits and fuels tax credits. We also recognized $2.2 million related to investment tax credits in 2016. At December 31, 2016 and 2015, unremitted earnings of subsidiaries outside the United States deemed to be indefinitely reinvested totaled $399.9 million and $338.6 million, respectively. Because the unremitted earnings of subsidiaries are deemed to be indefinitely reinvested as of December 31, 2016 and because we have no need for or plans to repatriate such earnings, no deferred tax liability has been recognized in our consolidated financial statements. It is not practicable to determine the amount of additional taxes that have not been provided. As of December 31, 2016, 2015 and 2014, we had $14.2 million, $12.2 million and $14.9 million of gross unrecognized tax benefits, respectively. As of December 31, 2016, if such benefits were to be recognized, approximately $11.3 million would be recorded as a component of income tax expense, thereby affecting our effective tax rate. A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits is as follows: In millions 2016 2015 2014 Balance at January 1 $ 12.2 $ 14.9 $ 14.9 Increases in tax positions for prior years 2.0 - 0.7 Decreases in tax positions for prior years (1.4 ) (4.3 ) (0.5 ) Acquisition related: Purchase Accounting - - 0.3 Increases in tax positions for current year 1.9 1.9 3.4 Settlements (0.2 ) - (1.3 ) Lapse in statutes of limitation (0.3 ) (0.3 ) (2.6 ) Balance at December 31 $ 14.2 $ 12.2 $ 14.9 We, or one of our subsidiaries, file income tax returns with the United States Internal Revenue Service, as well as various state and foreign authorities. The following table summarizes tax years that remain subject to examination by major jurisdiction: Open Tax Years Jurisdiction Examinations not yet initiated Examination in progress United States Federal 2013 - 2016 N/A State 2012 - 2016 2014 Canada (1) 2010 - 2016 N/A Germany (1) 2012 - 2016 2011 - 2013 France 2014 - 2016 2011 - 2012 United Kingdom 2015 - 2016 N/A Philippines 2015 -2016 2013, 2014 (1) includes provincial or similar local jurisdictions, as applicable. The amount of income taxes we pay is subject to ongoing audits by federal, state and foreign tax authorities, which often result in proposed assessments. Management performs a comprehensive review of its global tax positions on a quarterly basis and accrues amounts for uncertain tax positions. Based on these reviews and the result of discussions and resolutions of matters with certain tax authorities and the closure of tax years subject to tax audit, reserves are adjusted as necessary. However, future results may include favorable or unfavorable adjustments to our estimated tax liabilities in the period the assessments are determined or resolved or as such statutes are closed. Due to potential for resolution of federal, state and foreign examinations, and the expiration of various statutes of limitation, it is reasonably possible our gross unrecognized tax benefits balance may decrease within the next twelve months by a range of zero to $0.9 million. Substantially all of this range relates to tax positions taken in the United Kingdom and in the U.S. We recognize interest and penalties related to uncertain tax positions as income tax expense. The following table summarizes information related to interest and penalties on uncertain tax positions: As of or for the year ended December 31, In millions 2016 2015 2014 Accrued interest payable $ 0.5 $ 0.6 $ 0.6 Interest expense (income) (0.1 ) – – Penalties – – –

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	10. STOCK-BASED COMPENSATION The P. H. Glatfelter Amended and Restated Long Term Incentive Plan (the “LTIP”) provides for the issuance of Glatfelter common stock to eligible participants in the form of restricted stock units, restricted stock awards, non-qualified stock options, performance shares, incentive stock options and performance units. As of December 31, 2016, there were 611,699 shares of common stock available for future issuance under the LTIP. Since the approval of the LTIP, we have issued to eligible participants restricted stock units, performance share awards and stock only stock appreciation rights (“SOSARs”). Restricted Stock Units (“RSUs”) and Performance Share Awards (“PSAs”) Awards of RSUs and PSAs are made under our LTIP. The vesting of RSUs is generally based on the passage of time, generally on a graded scale over a three, four, and five-year period. Beginning in March of 2011, PSAs were issued annually to members of senior management and each respective grant cliff vests each December 31, assuming the achievement of predetermined, multi-year cumulative performance targets. The performance measures include a minimum, target and maximum performance level providing the grantees an opportunity to receive more or less shares than targeted depending on actual financial performance. For both RSUs and PSAs, the grant date fair value of the awards, which is equal to the closing price per common share on the date of the award, is used to determine the amount of expense to be recognized over the applicable service period. Settlement of RSUs and PSAs will be made in shares of our common stock currently held in treasury. The following table summarizes RSU and PSA activity during the past three years: Units 2016 2015 2014 Balance at January 1, 674,523 888,942 1,001,814 Granted 302,722 164,666 178,882 Forfeited (148,232 ) (92,183 ) (47,379 ) Shares delivered (149,975 ) (286,902 ) (244,375 ) Balance at December 31, 679,038 674,523 888,942 2016 2015 2014 Compensation expense $ 3,154 $ 1,758 $ 2,652 The amount granted in 2016, 2015 and 2014 includes 199,693, 105,017 and 101,743 PSAs, respectively, exclusive of reinvested dividends. The performance period for the 2014 PSAs concluded on December 31, 2016 and, based on actual performance relative to target, no shares underlying the PSA were issued to participants. The weighted average grant date fair value per unit for awards in 2016, 2015 and 2014 was $18.08, $24.62 and $28.89, respectively. As of December 31, 2016, unrecognized compensation expense for outstanding RSUs and PSAs totaled $5.4 million. The weighted average remaining period over which the expense will be recognized is 2.1 years. Stock Only Stock Appreciation Rights The following table sets forth information related to outstanding SOSARS: 2016 2015 2014 SOSARS Shares Wtd Avg Exercise Price Shares Wtd Avg Exercise Price Shares Wtd Avg Exercise Price Outstanding at January 1, 2,199,742 $ 17.82 1,864,707 $ 16.20 1,977,133 $ 13.91 Granted 743,925 17.54 423,590 24.62 281,881 29.78 Exercised (61,190 ) 10.70 (70,347 ) 14.12 (364,465 ) 13.99 Canceled / forfeited (145,861 ) 22.80 (18,208 ) 25.41 (29,842 ) 19.36 Outstanding at December 31, 2,736,616 $ 17.64 2,199,742 $ 17.82 1,864,707 $ 16.20 Exercisable at December 31, 1,740,591 16.19 1,504,599 14.48 1,285,998 12.94 Vested and expected to vest 2,725,611 2,178,708 1,754,295 SOSAR Grants Weighted average grant date fair value per share $ 4.07 $ 7.46 $ 9.81 Aggregate grant date fair value (in thousands) $ 3,013 $ 3,134 $ 2,764 Black-Scholes assumptions Dividend yield 2.85 % 1.94 % 1.48 % Risk free rate of return 1.34 % 1.64 % 1.74 % Volatility 31.97 % 36.38 % 37.59 % Expected life 6 6 6 Compensation expense (in thousands) $ 2,735 $ 2,645 $ 2,086 Under terms of the SOSAR, the recipients receive the right to receive a payment in the form of shares of common stock equal to the difference, if any, in the fair market value of one share of common stock at the time of exercising the SOSAR and the exercise price. The SOSARs vest ratably over a three year period. As of December 31, 2016, the intrinsic value of SOSARs vested and expected to vest totaled $18.9 million and the remaining weighted average contractual life of outstanding SOSARs was 5.2 years.

Retirement Plans and Other Post

Retirement Plans and Other Post-Retirement Benefits	12 Months Ended
	Dec. 31, 2016
Compensation And Retirement Disclosure [Abstract]
Retirement Plans and Other Post-Retirement Benefits	11. RETIREMENT PLANS AND OTHER POST-RETIREMENT BENEFITS We provide non-contributory retirement benefits under both funded and unfunded plans to all U.S. employees and to certain non-U.S. employees. Participation and benefits under the plans are based upon the employees’ date of hire and the covered group in which that employee falls. U.S. benefits are based on either a unit-benefit formula for bargained hourly employees, or a final average pay formula or cash balance formula for salaried employees. Non-U.S. benefits are based, in the case of certain plans, on average salary and years of service and, in the case of other plans, on a fixed amount for each year of service. U.S. plan provisions and funding meet the requirements of the Employee Retirement Income Security Act of 1974. We use a December 31-measurement date for all of our defined benefit plans. We also provide certain health care benefits to eligible U.S.-based retired employees and exclude all salaried employees hired after January 1, 2008. These benefits include a comprehensive medical plan for retirees prior to age 65 and fixed supplemental premium payments to certain retirees over age 65 to help defray the costs of Medicare. Claims are paid as reported. Pension Benefits Other Benefits In millions 2016 2015 2016 2015 Change in Benefit Obligation Balance at beginning of year $ 541.9 $ 577.6 $ 51.0 $ 59.8 Service cost 10.5 11.6 1.1 1.4 Interest cost 24.5 23.3 2.0 2.0 Plan amendments 5.5 - - - Participant contributions - - 1.0 1.2 Actuarial (gain)/loss 17.0 (34.8 ) (3.4 ) (10.1 ) Benefits paid (22.9 ) (34.8 ) (3.8 ) (3.3 ) One-time settlement (24.2 ) - - - Effect of currency rate changes (0.3 ) (1.0 ) - - Balance at end of year $ 552.0 $ 541.9 $ 47.9 $ 51.0 Change in Plan Assets Fair value of plan assets at beginning of year $ 594.9 $ 638.0 $ - $ - Actual return on plan assets 60.8 (10.3 ) - - Total contributions 2.1 2.0 3.8 3.3 Benefits paid (22.9 ) (34.8 ) (3.8 ) (3.3 ) One-time settlement (24.2 ) - - - Fair value of plan assets at end of year $ 610.7 594.9 - - Funded status at end of year $ 58.7 $ 53.0 $ (47.9 ) $ (51.0 ) In 2016, the we recorded a pension settlement charge of $7.3 million and settled $24.2 million of benefits in connection with a voluntary program offered to deferred vested terminated participants. Amounts recognized in the consolidated balance sheets consist of the following as of December 31: Pension Benefits Other Benefits In millions 2016 2015 2016 2015 Other assets $ 96.7 $ 89.1 $ - $ - Current liabilities (2.0 ) (2.1 ) (3.2 ) (3.2 ) Other long-term liabilities (36.0 ) (34.0 ) (44.7 ) (47.7 ) Net amount recognized $ 58.7 $ 53.0 $ (47.9 ) $ (50.9 ) The components of amounts recognized as “Accumulated other comprehensive income” consist of the following on a pre-tax basis: Pension Benefits Other Benefits In millions 2016 2015 2016 2015 Prior service cost/(credit) $ 14.8 $ 12.0 $ (0.6 ) $ (0.8 ) Net actuarial loss 165.9 185.0 (7.4 ) (4.8 ) The accumulated benefit obligation for all defined benefit pension plans was $537.6 million and $526.7 million at December 31, 2016 and 2015, respectively. The weighted-average assumptions used in computing the benefit obligations above were as follows: Pension Benefits Other Benefits 2016 2015 2016 2015 Discount rate – benefit obligation 4.43 % 4.65 % 4.18 % 4.38 % Future compensation growth rate 3.00 3.50 – – The discount rates set forth above were estimated based on the modeling of expected cash flows for each of our benefit plans and selecting a portfolio of high-quality debt instruments with maturities matching the respective cash flows of each plan. The resulting discount rates as of December 31, 2016 ranged from 1.90% to 4.55% for pension plans and from 4.02% to 4.21% for other benefit plans. Information for pension plans with an accumulated benefit obligation in excess of plan assets was as follows: In millions 2016 2015 Projected benefit obligation $ 37.9 $ 36.1 Accumulated benefit obligation 34.6 33.1 Fair value of plan assets – – Net periodic benefit cost includes the following components: Year Ended December 31 In millions 2016 2015 2014 Pension Benefits Service cost $ 10.5 $ 11.6 $ 10.4 Interest cost 24.5 23.3 24.8 Expected return on plan assets (45.4 ) (46.0 ) (43.9 ) Amortization of prior service cost 2.7 3.1 3.3 Amortization of actuarial loss 13.2 17.1 12.1 One-time settlement charge 7.3 — — Total net periodic benefit cost $ 12.8 $ 9.1 $ 6.7 Other Benefits Service cost $ 1.1 $ 1.4 $ 1.5 Interest cost 2.0 2.0 2.5 Amortization of prior service cost/(credit) (0.2 ) (0.3 ) (0.3 ) Amortization of actuarial loss (0.8 ) 0.2 0.4 Total net periodic benefit cost $ 2.1 $ 3.3 $ 4.1 The prior service cost and actuarial net loss for our defined benefit pension plans that will be amortized from accumulated other comprehensive income (loss) into our results of operations as a component of net periodic benefit cost over the next fiscal year are $2.8 million and $11.3 million, respectively. The comparable amounts of expected amortization for other benefit plans are a credit of $0.2 million and $0.6 million, respectively. Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) were as follows: Year Ended December 31 In millions 2016 2015 Pension Benefits Actuarial loss $ 1.4 $ 21.5 Plan amendments 5.5 — Recognized prior service cost (2.7 ) (3.1 ) Recognized actuarial losses (20.5 ) (17.1 ) Total recognized in other comprehensive loss (16.3 ) 1.3 Total recognized in net periodic benefit cost and other comprehensive loss $ (3.5 ) $ 10.4 Other Benefits Actuarial (gain) loss $ (3.4 ) $ (10.1 ) Amortization of prior service cost 0.2 0.3 Amortization of actuarial losses 0.8 (0.2 ) Total recognized in other comprehensive (income) loss (2.4 ) (10.0 ) Total recognized in net periodic benefit cost and other comprehensive (income) loss $ (0.3 ) $ (6.7 ) The weighted-average assumptions used in computing the net periodic benefit cost information above were as follows: Year Ended December 31 2016 2015 2014 Pension Benefits Discount rate – benefit expense 4.65 % 4.21 % 5.20 % Future compensation growth rate 3.50 4.00 4.00 Expected long-term rate of return on plan assets 7.75 8.00 8.00 Other Benefits Discount rate – benefit expense 4.38 % 3.89 % 4.52 % To develop the expected long-term rate of return assumption, we considered the historical returns and the future expected returns for each asset class, as well as the target asset allocation of the pension portfolio. Assumed health care cost trend rates used to determine benefit obligations at December 31 were as follows: 2016 2015 Health care cost trend rate assumed for next year 6.50 % 6.80 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 4.50 4.50 Year that the rate reaches the ultimate rate 2037 2037 Assumed health care cost trend rates have a significant effect on the amounts reported for health care plans. A one percentage-point change in assumed health care cost trend rates would have the following effects: One Percentage Point In millions Increase Decrease Effect on: Post-retirement benefit obligation $ 3.8 $ (3.4 ) Total of service and interest cost components 0.3 (0.3 ) Plan Assets All pension plan assets in the U.S. are invested through a single master trust fund. The strategic asset allocation for this trust fund is selected by management, reflecting the results of comprehensive asset and liability modeling. The general principles guiding U.S. pension asset investment policies are those embodied in the Employee Retirement Income Security Act of 1974 (ERISA). These principles include discharging our investment responsibilities for the exclusive benefit of plan participants and in accordance with the “prudent expert” standard and other ERISA rules and regulations. We establish strategic asset allocation percentage targets and appropriate benchmarks for significant asset classes with the aim of achieving a prudent balance between return and risk. Investments and decisions will be made solely in the interest of the Plan’s participants and beneficiaries, and for the exclusive purpose of providing benefits accrued thereunder. The primary goal of the Plan is to ensure the solvency of the Plan over time and thereby meet its distribution objectives. All investments in the Plan will be made in accordance with ERISA and other applicable statutes. Risk is minimized by diversification by asset class, by style of each manager and by sector and industry limits when applicable. The targeted range of investment allocations of Plan assets is as follows: Range Domestic Equity 35 % - 45 % International equity 8 - 14 Real Estate Investment Trusts (REIT) 2 - 6 Fixed income, cash and cash equivalents 55 - 35 Diversification of plan assets is achieved by: i. placing restrictions on the percentage of equity investments in any one company, percentage of investment in any one industry, limiting the amount of assets placed with any one manager; and ii. setting targets for duration of fixed income securities, maintaining a certain level of credit quality, and limiting the amount of investment in a single security and in non-investment grade paper. A formal asset allocation review is done periodically to ensure that the Plan has an appropriate asset allocation based on the Plan’s projected benefit obligations. The target return for each equity and fixed income manager will be one that places the manager’s performance in the top 40% of its peers and, on a gross basis, exceeds that of the manager’s respective benchmark index. The target return for cash and cash equivalents is a return that at least equals that of the 90-day T-bills. The Investment Policy statement lists specific categories of securities or activities that are prohibited including options, futures, commodities, hedge funds, limited partnerships, and our stock. The table below presents the fair values of our benefit plan assets by level within the fair value hierarchy, as described in Note 2: December 31, 2016 In millions Total Level 1 Level 2 Level 3 Domestic Equity Large cap $ 201.9 $ 7.1 $ 194.8 $ - Small and mid cap 50.9 50.9 - - International equity 79.5 38.8 40.7 - REIT 27.9 27.9 - - Fixed income 237.7 28.5 209.2 - Cash and equivalents 12.8 - 12.8 - Total $ 610.7 $ 153.2 $ 457.5 $ - December 31, 2015 In millions Total Level 1 Level 2 Level 3 Domestic Equity Large cap $ 175.1 $ 58.4 $ 116.7 $ - Small and mid cap 68.7 68.7 - - International equity 79.8 42.2 37.6 - REIT 31.9 31.9 - - Fixed income 222.4 32.3 190.1 - Cash and equivalents 17.0 - 17.0 - Total $ 594.9 $ 233.5 $ 361.4 $ - Cash Flow We were not required to make contributions to our qualified pension plan in 2016 nor do we expect to make any to this plan in 2017. Benefit payments expected to be made in 2017 under our non-qualified pension plans and other benefit plans are summarized below: In thousands Nonqualified pension plans $ 1,991 Other benefit plans 3,212 The following benefit payments under all pension and other benefit plans, and giving effect to expected future service, as appropriate, are expected to be paid: In thousands Pension Benefits Other Benefits 2017 $ 36,885 $ 3,212 2018 37,033 3,548 2019 36,520 4,013 2020 36,871 4,389 2021 36,871 4,488 2022 through 2026 184,679 21,009 Defined Contribution Plans We maintain 401(k) plans for certain hourly and salaried employees. Employees may contribute up to 50% of their earnings, subject to certain restrictions. Through November 2015, we matched a portion of the employee’s contribution, subject to certain limitations, in the form of shares of Glatfelter common stock out of treasury. Company matches are now made in cash. The expense associated with our 401(k) match was $2.0 million, $2.1 million and $2.0 million in 2016, 2015 and 2014, respectively.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Inventories	12. INVENTORIES Inventories, net of reserves were as follows: December 31 In thousands 2016 2015 Raw materials $ 66,359 $ 60,098 In-process and finished 112,507 115,874 Supplies 70,803 71,242 Total $ 249,669 $ 247,214 We value all of our U.S. inventories, excluding supplies, on the LIFO method. If we had valued these inventories using the first-in, first-out method, inventories would have been $21.3 million and $28.2 million higher than reported at December 31, 2016 and 2015, respectively.

Plant, Equipment and Timberland

Plant, Equipment and Timberlands	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Plant, Equipment and Timberlands	13. PLANT, EQUIPMENT AND TIMBERLANDS Plant, equipment and timberlands at December 31 were as follows: In thousands 2016 2015 Land and buildings $ 192,877 $ 205,338 Machinery and equipment 1,335,669 1,305,067 Furniture, fixtures, and other 142,110 135,355 Accumulated depreciation (1,036,825 ) (1,009,331 ) 633,831 636,429 Construction in progress 137,665 58,657 Asset retirement obligation, net — 579 Timberlands, less depletion 4,402 3,199 Total $ 775,898 $ 698,864 As of December 31, 2016 and 2015, we had $24.3 million and $13.4 million, respectively, of accrued capital expenditures.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	14. GOODWILL AND INTANGIBLE ASSETS The following table sets forth information with respect to goodwill and other intangible assets: December 31 In thousands 2016 2015 Goodwill – Composite Fibers $ 73,094 $ 76,056 Specialty Papers Customer relationships $ 6,155 $ 6,155 Composite Fibers Tradename 4,195 4,332 Technology and related 35,874 37,625 Customer relationships and related 32,310 33,618 Advanced Airlaid Materials Technology and related 1,377 1,403 Customer relationships and related 2,638 2,725 Total intangibles 82,549 85,858 Accumulated amortization (26,290 ) (22,801 ) Net intangibles $ 56,259 $ 63,057 The change in goodwill was due to currency translation adjustments. Other than non-amortizable goodwill and tradename, intangible assets are amortized on a straight-line basis. Customer relationships are amortized over periods ranging from 10 years to 14 years and technology and related intangible assets are amortized over periods ranging from 14 years to 20 years. The following table sets forth information pertaining to amortization of intangible assets: In thousands 2016 2015 2014 Aggregate amortization expense: $ 4,852 $ 5,340 $ 6,136 Estimated amortization expense: 2017 4,464 2018 4,464 2019 4,464 2020 4,336 2021 3,973 The remaining weighted average useful life of intangible assets was 13.1 years at December 31, 2016.

Other Long-Term Assets

Other Long-Term Assets	12 Months Ended
	Dec. 31, 2016
Other Assets Noncurrent [Abstract]
Other Long-Term Assets	15. OTHER LONG-TERM ASSETS Other long-term assets consist of the following: December 31 In thousands 2016 2015 Pension $ 96,699 $ 89,093 Other 25,050 20,979 Total $ 121,749 $ 110,072

Other Current Liabilities

Other Current Liabilities	12 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Other Current Liabilities	16. OTHER CURRENT LIABILITIES Other current liabilities consist of the following: December 31 In thousands 2016 2015 Accrued payroll and benefits $ 48,306 $ 35,079 Other accrued compensation and retirement benefits 6,828 6,866 Income taxes payable 211 2,921 Accrued rebates 14,329 18,248 Other accrued expenses 49,576 43,330 Total $ 119,250 $ 106,444

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Long-Term Debt	17. LONG-TERM DEBT Long-term debt is summarized as follows: December 31 In thousands 2016 2015 Revolving credit facility, due Mar. 2020 $ 61,595 $ 58,792 5.375% Notes, due Oct. 2020 250,000 250,000 2.40% Term Loan, due Jun. 2022 8,282 10,109 2.05% Term Loan, due Mar. 2023 35,163 42,130 1.30% Term Loan, due Jun. 2023 9,788 - 1.55% Term Loan, due Sep. 2025 10,333 2,839 Total long-term debt 375,161 363,870 Less current portion (8,961 ) (7,366 ) Unamortized deferred issuance costs (2,553 ) (3,208 ) Long-term debt, net of current portion $ 363,647 $ 353,296 The amount set forth for Long-term debt, net of current portion as of December 31, 2015, has been restated to retroactively adopt ASU No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs On March 12, 2015, we amended our revolving credit agreement with a consortium of banks (the “Revolving Credit Facility”) which increased the amount available for borrowing to $400 million, extended the maturity of the facility to March 12, 2020, and instituted a revised interest rate pricing grid. On February 1, 2017, the Revolving Credit Agreement was further amended to, among other things, change the definition of earnings before interest, taxes, depreciation and amortization (“EBITDA”) for purposes of calculating covenant compliance. For all US dollar denominated borrowings under the Revolving Credit Facility, the borrowing rate is, at our option, either, (a) the bank’s base rate which is equal to the greater of i) the prime rate; ii) the federal funds rate plus 50 basis points; or iii) the daily Euro-rate plus 100 basis points plus an applicable spread over either i), ii) or iii) ranging from 12.5 basis points to 100 basis points based on the Company’s leverage ratio and its corporate credit ratings determined by Standard & Poor’s Rating Services and Moody’s Investor Service, Inc. (the “Corporate Credit Rating”); or (b) the daily Euro-rate plus an applicable margin ranging from 112.5 basis points to 200 basis points based on the Company’s leverage ratio and the Corporate Credit Rating. For non-US dollar denominated borrowings, interest is based on (b) above. The Revolving Credit Facility contains a number of customary covenants for financings of this type that, among other things, restrict our ability to dispose of or create liens on assets, incur additional indebtedness, repay other indebtedness, limits certain intercompany financing arrangements, make acquisitions and engage in mergers or consolidations. We are also required to comply with specified financial tests and ratios including: i) maximum net debt EBITDA ratio (the “leverage ratio”); and ii) a consolidated EBITDA to interest expense ratio. The most restrictive of our covenants is a maximum leverage ratio of 3.5x. As of December 31, 2016, the leverage ratio, as calculated in accordance with the definition in our amended credit agreement was 2.2x. A breach of these requirements would give rise to certain remedies under the Revolving Credit Facility, among which are the termination of the agreement and accelerated repayment of the outstanding borrowings plus accrued and unpaid interest under the credit facility. On October 3, 2012, we completed a private placement offering of $250.0 million aggregate principal amount of 5.375% Senior Notes due 2020 (the “5.375% Notes”). The 5.375% Notes, which are now publically registered, are fully and unconditionally guaranteed, jointly and severally, by PHG Tea Leaves, Inc., Mollanvick, Inc., Glatfelter Composite Fibers N. A., Inc., Glatfelter Advanced Materials N.A., Inc., and Glatfelter Holdings, LLC (the “Guarantors”). Interest on the 5.375% Notes is payable semiannually in arrears on April 15 and October 15. The 5.375% Notes are redeemable, in whole or in part, at any time on or after October 15, 2016 at the redemption prices specified in the applicable Indenture. These Notes and the guarantees of the notes are senior obligations of the Company and the Guarantors, respectively, rank equally in right of payment with future senior indebtedness of the Company and the Guarantors and will mature on October 15, 2020. The 5.375% Notes contain various covenants customary to indebtedness of this nature including limitations on i) the amount of indebtedness that may be incurred; ii) certain restricted payments including common stock dividends; iii) distributions from certain subsidiaries; iv) sales of assets; v) transactions amongst subsidiaries; and vi) incurrence of liens on assets. In addition, the 5.375% Notes contain cross default provisions that could result in all such notes becoming due and payable in the event of a failure to repay debt outstanding under the Revolving Credit Agreement at maturity or a default under the Revolving Credit Agreement that accelerates the debt outstanding thereunder. As of December 31, 2016, we met all of the requirements of our debt covenants. Glatfelter Gernsbach GmbH & Co. KG (“Gernsbach”), a wholly-owned subsidiary of ours, entered into a series of borrowing agreements with IKB Deutsche Industriebank AG, Düsseldorf (“IKB”) as summarized below: Amounts in thousands Original Principal Interest Rate Maturity Borrowing date Apr. 11, 2013 € 42,700 2.05 % Mar. 2023 Sep. 4, 2014 10,000 2.40 % Jun. 2022 Oct. 10, 2015 2,608 1.55 % Sep. 2025 May 4, 2016 7,195 1.55 % Sep. 2025 Apr. 26, 2016 10,000 1.30 % Jun. 2023 Each of the borrowings require quarterly repayments of principal and interest and provide for representations, warranties and covenants customary for financings of these types. The financial covenants contained in each of the IKB loans, which relate to the minimum ratio of consolidated EBITDA to consolidated interest expense and the maximum ratio of consolidated total net debt to consolidated adjusted EBITDA, will be calculated by reference to our Revolving Credit Agreement. Aggregated unamortized deferred debt issuance costs incurred in connection with all of our outstanding debt totaled $4.2 million at December 31, 2016. The deferred costs are being amortized on a straight line basis over the life of the underlying instruments. Amortization expense related to deferred debt issuance costs totaled $1.2 million in 2016. The following schedule sets forth the amortization of our term loan agreements together with the maturity of our other long-term debt during the indicated year. In thousands 2017 $ 8,961 2018 9,930 2019 9,930 2020 321,525 2021 9,930 Thereafter 14,885 P. H. Glatfelter Company guarantees all debt obligations of its subsidiaries. All such obligations are recorded in these consolidated financial statements. As of December 31, 2016 and 2015, we had $5.1 million and $5.3 million, respectively, of letters of credit issued to us by certain financial institutions. The letters of credit, which reduce amounts available under our revolving credit facility, primarily provide financial assurances for the benefit of certain state workers compensation insurance agencies in conjunction with our self-insurance program. We bear the credit risk on this amount to the extent that we do not comply with the provisions of certain agreements. No amounts are outstanding under the letters of credit.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	18. FAIR VALUE OF FINANCIAL INSTRUMENTS The amounts reported on the consolidated balance sheets for cash and cash equivalents, accounts receivable and short-term debt approximate fair value. The following table sets forth the carrying value and fair value of long-term debt as of December 31: 2016 2015 In thousands Carrying Value Fair Value Carrying Value Fair Value Variable rate debt $ 61,595 $ 61,595 $ 58,792 $ 58,792 Fixed-rate bonds 250,000 256,563 250,000 250,938 2.40% Term loan 8,282 8,877 10,109 10,535 2.05% Term loan 35,163 37,089 42,130 42,886 1.30% Term Loan 9,788 10,062 - - 1.55% Term loan 10,333 10,082 2,839 2,524 Total $ 375,161 $ 384,268 $ 363,870 $ 365,675 As of December 31, 2016 and 2015, we had $250.0 million of 5.375% fixed rate bonds. These bonds are publicly registered, but thinly traded. Accordingly, the values set forth above for the bonds, as well as our other debt instruments, are based on observable inputs and other relevant market data (Level 2). The fair value of financial derivatives is set forth below in Note 19.

Financial Derivatives and Hedgi

Financial Derivatives and Hedging Activities	12 Months Ended
	Dec. 31, 2016
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Financial Derivatives and Hedging Activities	19. FINANCIAL DERIVATIVES AND HEDGING ACTIVITIES As part of our overall risk management practices, we enter into financial derivatives primarily designed to either i) hedge foreign currency risks associated with forecasted transactions – “cash flow hedges”; or ii) mitigate the impact that changes in currency exchange rates have on intercompany financing transactions and foreign currency denominated receivables and payables – “foreign currency hedges." Derivatives Designated as Hedging Instruments - Cash Flow Hedges We use currency forward contracts as cash flow hedges to manage our exposure to fluctuations in the currency exchange rates on certain forecasted production costs or capital expenditures expected to be incurred over a maximum of nineteen months. Currency forward contracts involve fixing the EUR-USD exchange rate or USD-CAD for delivery of a specified amount of foreign currency on a specified date. We designate certain currency forward contracts as cash flow hedges of forecasted raw material purchases, certain production costs or capital expenditures with exposure to changes in foreign currency exchange rates. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges of foreign exchange risk is deferred as a component of accumulated other comprehensive income in the accompanying consolidated balance sheets. With respect to hedges of forecasted raw material purchases or production costs, the amount deferred is subsequently reclassified into costs of products sold in the period that inventory produced using the hedged transaction affects earnings. For hedged capital expenditures, deferred gains or losses are reclassified and included in the historical cost of the capital asset and subsequently affect earnings as depreciation is recognized. The ineffective portion of the change in fair value of the derivative is recognized directly to earnings and reflected in the accompanying consolidated statements of income as non-operating income (expense) under the caption “Other-net.” We had the following outstanding derivatives that were used to hedge foreign exchange risks associated with forecasted transactions and designated as hedging instruments: December 31 In thousands 2016 2015 Derivative Sell/Buy - sell notional Euro / British Pound 10,373 10,527 Sell/Buy - buy notional Euro / Philippine Peso 699,279 758,634 British Pound / Philippine Peso 557,025 542,063 Euro / U.S. Dollar 43,951 51,433 U.S. Dollar / Canadian Dollar 35,290 34,649 U.S. Dollar / Euro 15,379 — These contracts have maturities of nineteen months or less. Derivatives Not Designated as Hedging Instruments - Foreign Currency Hedges We also enter into forward foreign exchange contracts to mitigate the impact changes in currency exchange rates have on balance sheet monetary assets and liabilities. None of these contracts are designated as hedges for financial accounting purposes and, accordingly, changes in value of the foreign exchange forward contracts and in the offsetting underlying on-balance-sheet transactions are reflected in the accompanying consolidated statements of income under the caption “Other, net.” December 31 In thousands 2016 2015 Derivative Sell/Buy - sell notional U.S. Dollar / Euro — — U.S. Dollar / British Pound 10,500 10,000 Euro / British Pound — — British Pound / Euro 2,500 3,500 Sell/Buy - buy notional Euro / U.S. Dollar 3,500 12,500 British Pound / Euro 18,500 13,500 These contracts have maturities of one month from the date originally entered into. Fair Value Measurements The following table summarizes the fair values of derivative instruments as of December 31 for the year indicated and the line items in the accompanying consolidated balance sheets where the instruments are recorded: December 31 December 31 In thousands 2016 2015 2016 2015 Prepaid Expenses and Other Other Current Balance sheet caption Current Assets Liabilities Designated as hedging: Forward foreign currency exchange contracts $ 2,625 $ 955 $ 1,493 $ 1,545 Not designated as hedging: Forward foreign currency exchange contracts $ 60 $ 68 $ 104 $ 49 The amounts set forth in the table above represent the net asset or liability giving effect to rights of offset with each counterparty. The following table summarizes the amount of income or loss from derivative instruments recognized in our results of operations for the periods indicated and the line items in the accompanying consolidated statements of income where the results are recorded: Year ended December 31 In thousands 2016 2015 2014 Designated as hedging: Forward foreign currency exchange contracts: Effective portion – cost of products sold $ (551 ) $ 5,752 $ (655 ) Ineffective portion – other – net (166 ) (152 ) 184 Not designated as hedging : Forward foreign currency exchange contracts: Other – net $ 806 $ 599 $ 1,599 The impact of activity not designated as hedging was substantially all offset by the remeasurement of the underlying on-balance sheet item. The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described in Note 2. The fair values of the foreign exchange forward contracts are considered to be Level 2. Foreign currency forward contracts are valued using foreign currency forward and interest rate curves. The fair value of each contract is determined by comparing the contract rate to the forward rate and discounting to present value. Contracts in a gain position are recorded in the accompanying consolidated balance sheets under the caption “Prepaid expenses and other current assets” and the value of contracts in a loss position is recorded under the caption “Other current liabilities.” A rollforward of fair value amounts recorded as a component of accumulated other comprehensive income is as follows: In thousands 2016 2015 Balance at January 1, $ (178 ) $ 3,282 Deferred (losses) gains on cash flow hedges 1,509 2,292 Reclassified to earnings 551 (5,752 ) Balance at December 31, $ 1,882 $ (178 ) We expect substantially all of the amounts recorded as a component of accumulated other comprehensive income will be realized in results of operations within the next twelve to eighteen months and the amount ultimately recognized will vary depending on actual market rates. Credit risk related to derivative activity arises in the event a counterparty fails to meet its obligations to us. This exposure is generally limited to the amounts, if any, by which the counterparty’s obligations exceed our obligation to them. Our policy is to enter into contracts only with financial institutions which meet certain minimum credit ratings.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Shareholders' Equity	20. SHAREHOLDERS’ EQUITY The following table summarizes outstanding shares of common stock: Year ended December 31 In thousands 2016 2015 2014 Shares outstanding at beginning of year 43,420 43,054 43,130 Shares repurchased — — (464 ) Treasury shares issued for: Restricted stock awards 108 206 162 401(k) plan — 134 116 Employee stock options exercised 22 26 110 Shares outstanding at end of year 43,550 43,420 43,054

Commitments, Contingencies and

Commitments, Contingencies and Legal Proceedings	12 Months Ended
	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Commitments, Contingencies and Legal Proceedings	21. COMMITMENTS, CONTINGENCIES AND LEGAL PROCEEDINGS Contractual Commitments The following table summarizes the minimum annual payments due on noncancelable operating leases and other similar contractual obligations having initial or remaining terms in excess of one year: In thousands Leases Other 2017 $ 5,298 $ 87,831 2018 3,706 23,584 2019 3,030 5,193 2020 2,472 3,115 2021 1,896 2,961 Thereafter 7,270 1,890 Other contractual obligations primarily represent minimum purchase commitments under energy supply contracts and other purchase obligations. At December 31, 2016, required minimum annual payments due under operating leases and other similar contractual obligations aggregated $23.7 million and $124.6 million, respectively. Fox River - Neenah, Wisconsin Background. We have significant uncertainties associated with environmental claims arising out of the presence of polychlorinated biphenyls (“PCBs”) in sediments in the lower Fox River, on which our former Neenah facility was located, and in the Bay of Green Bay Wisconsin (collectively, the “Site”). Since the early 1990s, the United States, the State of Wisconsin and two Indian tribes (collectively, the “Governments”) have pursued a cleanup of a 39-mile stretch of river from Little Lake Butte des Morts into Green Bay and natural resource damages (“NRDs”). The Site has been subject to certain studies, demonstration projects and interim cleanups. The permanent cleanup, known as a “remedial action” under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”), consists of sediment dredging, installation of engineered caps and placement of sand covers in various areas in the bed of the river. The United States originally notified several entities that they were potentially responsible parties (“PRPs”); however, after giving effect to settlements reached with the Governments, the remaining PRPs exposed to continuing obligations to implement the remainder of the cleanup consist of us, Georgia Pacific Consumer Products, L.P. (“Georgia Pacific”) and NCR Corporation (“NCR”). In addition to the government claims, Appvion retains a claim against us and Georgia Pacific. The United States Environmental Protection Agency (“EPA”) has divided the Site into five “operable units”, including the most upstream portion of the Site on which our facility was located (“OU1”) and four downstream reaches of the river and bay (“OU2-5”). We and WTM I Company, one of the PRPs, implemented the remedial action in OU1 under a consent decree with the Governments; Menasha Corporation made a financial contribution to that work. That project began in 2004 and the work is complete, other than on-going monitoring and maintenance. For OU2-5, work has proceeded primarily under a Unilateral Administrative Order (“UAO”) issued in November 2007 by the EPA to us and seven other respondents. The majority of that work to date has been funded or conducted by parties other than us, although before the UAO, we contributed to a project in that area and we have conducted about $13.4 million of cleanup work under the UAO in 2015 and 2016. The cleanup is expected to continue through 2018. However, as discussed below, under a proposed consent decree between the United States, Wisconsin, NCR and Appvion, Inc. (“Appvion”), we would not be responsible for any additional cleanup at the Site. Litigation and Settlement . In 2008, in an allocation action, NCR and Appvion sued us and many other defendants in an effort to allocate among the liable parties the costs of cleaning up this Site and compensating the Governments for their costs and the natural resource trustees for NRDs. This case has been called the “Whiting litigation.” After several summary judgment rulings and a trial, the trial court entered judgment in the Whiting Litigation allocating to NCR 100% of the costs of (a) the OU2-5 cleanup, (b) NRDs, (c) past and future costs incurred by the Governments in OU2-5, and (d) past and future costs incurred by any of the other parties net of an appropriate equitable adjustment for insurance recoveries. On appeal, the United States Court of Appeals for the Seventh Circuit affirmed the district court’s ruling, holding that if knowledge and fault were the only equitable factors governing allocation of costs and NRDs at the Site, NCR would owe 100% of all costs and damages in OU2-5, but would not have a share of costs in OU1 -- which is upstream of the outfall of the facilities for which NCR is responsible -- solely as an “arranger for disposal” of PCB-containing waste paper by recycling it at our mill. However, the court of appeals vacated the judgment and remanded the case for the district court’s further consideration of whether any other equitable factors might cause the district court to alter its allocation. In 2010, in an enforcement action, the Governments sued us and other defendants for (a) an injunction to require implementation of the cleanup ordered by the 2007 UAO, (b) recovery of the Governments’ past and future costs of response, (c) recovery of NRDs, and (d) recovery of a declaration of liability for the Site. After appeals, the Governments did not obtain an injunction and they withdrew their claims for NRDs. The Governments obtained a declaration of our liability to comply with the 2007 UAO. The Governments’ costs claims remained pending. On January 17, 2017, the United States filed a consent decree with the federal district court among the United States, Wisconsin, NCR, and Appvion under which NCR would agree to complete the remaining cleanup and both NCR and Appvion would agree not to seek to recover from us or anyone else any amounts they have spent or will spend, and we and others would be barred from seeking claims against NCR or Appvion. If the proposed consent decree is approved by the district court and if it were to withstand any appeal, then we would only face exposure to: (i) government past oversight costs, (ii) government future oversight costs, (iii) long term monitoring and maintenance, and (iv) depending on the reason, a further remedy if necessary in the event the currently ordered remedy fails, over 30 or more years, to achieve its objectives. Under the proposed consent decree, we would be liable for all past and future costs incurred by the Governments in addition to long term monitoring and maintenance with respect to OU1 through OU4a. As the result of earlier settlements, Georgia Pacific is only jointly liable with us to the Governments for monitoring and maintenance costs incurred in the most downstream three miles of the river (“OU4b”) and the bay of Green Bay (“OU5”). In addition, we and Georgia Pacific have claims against each other to reallocate the costs that we have each incurred or will incur. In connection with the filing of the proposed consent decree, NCR and Appvion filed a request to stay the trial scheduled to commence in April 2017. The courts granted the stay. Cost estimates. The January 17, 2017, proposed consent decree states that all parties combined have spent more than approximately $1 billion to date towards remedial actions and NRDs, of which we have contributed approximately $65 million. In addition, work to complete the remaining site remedy under the UAO is anticipated to cost approximately $200 million. If the consent decree were entered, we would no longer be exposed to reallocation of any of those amounts other than the portion contributed by Georgia Pacific, which Georgia Pacific claims to be about $145 million. Under the proposed consent decree, we would remain responsible for the Governments’ unreimbursed past costs, which although they are in dispute, are represented to total approximately $34 million and the governments future costs. Furthermore, we, along with Georgia Pacific, would be responsible for long term monitoring and maintenance required pursuant to the Lower Fox River 100% Remedial Design Report dated December 2009 – Long Term Monitoring Plan (the “Plan”). The Plan requires long term monitoring of each of OU1 through OU5 over a period of 30 years. The monitoring activities consist of, among others, testing fish tissue, sampling water quality and sediment, and inspections of the engineered caps. Each operable unit is required to be monitored; however, in the event the consent decree is entered by the court, we believe the cost of portions of the plan would be subject to allocation between us and Georgia Pacific. Although we are unable to determine with certainty the timing of cash expenditures for the above matters, they are reasonably likely to extend over a period of at least 30 years. Reserves for the Site. As the result of the proposed consent decree, and assuming it is ultimately approved and stands on appeal, our assessment of the range of probable outcomes for this matter has changed. The higher end of our range of our exposure is now lower; however, the lower end of the range is higher. We increased our reserve by $40.0 million as of December 31, 2016, to reflect our analysis of the range of potential outcomes in this matter and our current estimate of the most likely scenario. Our reserve is set forth below: Year ended December 31 In thousands 2016 2015 Balance at January 1, $ 17,105 $ 16,223 Payments (4,317 ) (9,118 ) Accruals 40,000 10,000 Balance at December 31, $ 52,788 $ 17,105 The payments set forth above represent cash paid towards completion of remediation activities in connection with the 2016 and 2015 Work Plan. Of our total reserve for the Fox River, $25.0 million is recorded in the accompanying December 31, 2016 consolidated balance sheet under the caption “Environmental liabilities” and the remaining $27.8 million is recorded under the caption “Other long term liabilities.” Range of Reasonably Possible Outcomes. Based on our analysis of all available information, including but not limited to decisions of the courts, official documents such as records of decision, discussions with legal counsel, cost estimates for future monitoring and maintenance and other post-remediation costs to be performed at the Site, and substantially dependent on whether the January 17, 2017, consent decree is entered and the resolution of the allocation issues between Georgia Pacific and us, we believe it is reasonably possible that our costs associated with the Fox River matter could exceed the aggregate amounts accrued by amounts ranging from insignificant to $40 million. We believe the likelihood of an outcome in the upper end of the monetary range is less than other possible outcomes within the range and the possibility of an outcome in excess of the upper end of the monetary range is remote. However, in the event the consent decree is not entered, the ultimate resolution of this matter would likely resort to extensive litigation involving various matters, including allocation of remedial action and related costs. In such a scenario, although we should ultimately bear a very small share, it is reasonably possible that our costs associated with the Fox River matter could exceed the aggregate amounts accrued by amounts ranging from insignificant to $150 million. Summary. Our current assessment is we will be able to manage this environmental matter without a long-term, material adverse impact on the Company. This matter could, however, at any particular time or for any particular year or years, have a material adverse effect on our consolidated financial position, liquidity and/or results of operations or could result in a default under our debt covenants. Moreover, there can be no assurance our reserves will be adequate to provide for future obligations related to this matter, or our share of costs and/or damages will not exceed our available resources, or those obligations will not have a material adverse effect on our consolidated financial position, liquidity and results of operations and might result in a default under our loan covenants. If the proposed consent decree is not approved and a court grants relief requiring us individually either to perform directly or to contribute significant amounts towards remedial action downstream of OU1 those developments could have a material adverse effect on our consolidated financial position, liquidity and results of operations and might result in a default under our loan covenants.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Segment Information	22. SEGMENT AND GEOGRAPHIC INFORMATION The following tables set forth profitability and other information by business unit: For the year ended December 31, 2016 Composite Advanced Airlaid Specialty Other and In millions Fibers Materials Papers Unallocated Total Net sales $ 517.0 $ 244.3 $ 843.6 $ — $ 1,604.8 Energy and related sales, net — — 6.1 — 6.1 Total revenue 517.0 244.3 849.7 — 1,610.9 Cost of products sold 416.4 209.5 752.6 13.8 1,392.3 Gross profit 100.6 34.8 97.1 (13.8 ) 218.7 SG&A 46.3 8.4 55.9 80.1 190.7 Loss on dispositions of plant, equipment and timberlands, net — — — 0.2 0.2 Total operating income (loss) 54.3 26.4 41.2 (94.1 ) 27.8 Non-operating expense — — — (16.9 ) (16.9 ) Income (loss) before income taxes $ 54.3 $ 26.4 $ 41.2 $ (111.0 ) $ 10.9 Supplementary Data Plant, equipment and timberlands, net $ 235.1 $ 179.3 $ 352.9 $ 8.6 $ 775.9 Depreciation, depletion and amortization 27.8 9.0 26.3 2.7 65.8 Capital expenditures 18.8 36.8 99.0 5.6 160.2 For the year ended December 31, 2015 Composite Advanced Airlaid Specialty Other and In millions Fibers Materials Papers Unallocated Total Net sales $ 541.5 $ 244.6 $ 875.0 $ — $ 1,661.1 Energy and related sales, net — — 5.7 — 5.7 Total revenue 541.5 244.6 880.7 — 1,666.7 Cost of products sold 434.4 215.7 804.5 9.2 1,463.8 Gross profit 107.1 28.9 76.2 (9.2 ) 203.0 SG&A 45.7 7.6 43.3 31.0 127.7 Gains on dispositions of plant, equipment and timberlands, net — — — (21.1 ) (21.1 ) Total operating income (loss) 61.4 21.3 32.9 (19.1 ) 96.4 Non-operating expense — — — (17.8 ) (17.8 ) Income (loss) before income taxes $ 61.4 $ 21.3 $ 32.9 $ (36.9 ) $ 78.6 Supplementary Data Plant, equipment and timberlands, net $ 258.1 $ 153.5 $ 281.6 $ 5.7 $ 698.9 Depreciation, depletion and amortization 26.2 8.8 26.0 2.2 63.2 Capital expenditures 26.8 7.8 63.5 1.8 99.9 For the year ended December 31, 2014 Composite Advanced Airlaid Specialty Other and In millions Fibers Materials Papers Unallocated Total Net sales $ 617.9 $ 281.7 $ 902.9 $ — $ 1,802.4 Energy and related sales, net — — 7.9 — 7.9 Total revenue 617.9 281.7 910.8 — 1,810.3 Cost of products sold 498.0 247.6 821.8 7.8 1,575.2 Gross profit 119.9 34.1 89.0 (7.8 ) 235.1 SG&A 51.6 8.8 50.4 22.4 133.2 Gains on dispositions of plant, equipment and timberlands, net — — — (4.9 ) (4.9 ) Total operating income (loss) 68.3 25.3 38.6 (25.3 ) 106.8 Non-operating expense — — — (19.4 ) (19.4 ) Income (loss) before income taxes $ 68.3 $ 25.3 $ 38.6 $ (44.7 ) $ 87.4 Supplementary Data Plant, equipment and timberlands, net $ 277.8 $ 163.6 $ 250.1 $ 6.1 $ 697.6 Depreciation, depletion and amortization 29.7 9.1 29.9 1.9 70.6 Capital expenditures 23.9 7.6 32.1 2.4 66.0 The sum of individual amounts set forth above may not agree to the consolidated financial statements included herein due to rounding. Results of individual business units are presented based on our management accounting practices and management structure. There is no comprehensive, authoritative body of guidance for management accounting equivalent to accounting principles generally accepted in the United States of America; therefore, the financial results of individual business units are not necessarily comparable with similar information for any other company. The management accounting process uses assumptions and allocations to measure performance of the business units. Methodologies are refined from time to time as management accounting practices are enhanced and businesses change. The costs incurred by support areas not directly aligned with the business unit are allocated primarily based on an estimated utilization of support area services. Management evaluates results of operations of the business units before pension expense, certain corporate level costs, and the effects of certain gains or losses not considered to be related to the core business operations. Management believes that this is a more meaningful representation of the operating performance of its core businesses, the profitability of business units and the extent of cash flow generated from these core operations. Such amounts are presented under the caption “Other and Unallocated.” In the evaluation of business unit results, management does not use any measures of total assets. This presentation is aligned with the management and operating structure of our company. It is also on this basis that the Company’s performance is evaluated internally and by the Company’s Board of Directors. Our Composite Fibers business unit serves customers globally and focuses on higher value-added products in the following markets: • Food & Beverage filtration paper primarily used for single-serve coffee and tea products; • Wallcovering base materials used by the world’s largest wallpaper manufacturers; • Metallized products used in labels, packaging liners, gift wrap, and other consumer product applications; • Composite Laminate paper used in production of decorative laminates, furniture, and flooring applications; and • Technical Specialties a diverse line of special paper products used in applications such as electrical energy storage, transport and transmission, wipes, and other highly-engineered fiber-based applications. Composite Fibers’ revenue composition by market consisted of the following for the years indicated: In thousands 2016 2015 2014 Food & beverage $ 258,463 $ 274,865 $ 296,304 Wallcovering 90,767 91,620 149,957 Metallized 61,059 68,397 80,839 Composite laminates 35,107 34,897 38,159 Technical specialties and other 71,558 71,689 52,592 Total $ 516,954 $ 541,468 $ 617,851 The Advanced Airlaid Materials business unit is a leading global supplier of highly absorbent cellulose-based airlaid nonwoven materials primarily used to manufacture consumer products for growing global end-user markets. These products include: • feminine hygiene; • specialty wipes; • adult incontinence; • home care; and • other consumer products. Advanced Airlaid Materials’ revenue composition by market consisted of the following for the years indicated: In thousands 2016 2015 2014 Feminine hygiene $ 173,902 $ 182,048 $ 216,836 Specialty wipes 25,206 22,950 16,002 Adult incontinence 12,281 10,720 17,586 Home care 12,630 13,345 15,401 Other 20,243 15,526 15,848 Total $ 244,262 $ 244,589 $ 281,673 Our Specialty Papers business unit focuses on producing papers for the following markets: • Carbonless & non-carbonless forms papers for credit card receipts, multi-part forms, security papers and other end-user applications; • Engineered products for high speed ink jet printing, office specialty products, greeting cards, and other niche specialty applications; • Envelope and converting papers primarily utilized for transactional and direct mail envelopes; and • Book publishing papers for the production of high quality hardbound books and other book publishing needs. Specialty Papers’ revenue composition by market consisted of the following for the years indicated: In thousands 2016 2015 2014 Carbonless & forms $ 319,648 $ 349,831 $ 376,959 Engineered products 189,463 190,943 194,189 Envelope & converting 173,362 178,067 183,194 Book publishing 157,541 152,647 144,744 Other 3,568 3,538 3,805 Total $ 843,582 $ 875,026 $ 902,891 No individual customer accounted for more than 10% of our consolidated net sales in 2016, 2015 and 2014. However, one customer accounted for the majority of Advanced Airlaid Materials’ net sales in each of the past three years ended December 31, 2016. Our net sales to external customers and location of net plant, equipment and timberlands are summarized below. Net sales are attributed to countries based upon origin of shipment. 2016 2015 2014 In thousands Net sales Plant, Equipment and Timberlands – Net Net sales Plant, Equipment and Timberlands – Net Net sales Plant, Equipment and Timberlands – Net United States $ 918,567 $ 391,977 $ 959,730 $ 287,447 $ 980,933 $ 256,251 Germany 427,520 220,380 444,009 232,340 529,003 257,311 United Kingdom 78,759 51,903 86,442 62,931 103,219 62,617 Canada 115,902 79,727 118,568 81,201 129,401 82,774 Other 64,049 31,911 52,335 34,945 59,859 38,655 Total $ 1,604,797 $ 775,898 $ 1,661,084 $ 698,864 $ 1,802,415 $ 697,608

Condensed Consolidating Financi

Condensed Consolidating Financial Statements	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Financial Statements	23. CONDENSED CONSOLIDATING FINANCIAL STATEMENTS Our 5.375% Notes issued by P. H. Glatfelter Company (the “Parent”) are fully and unconditionally guaranteed, on a joint and several basis, by certain of our 100%-owned domestic subsidiaries, PHG Tea Leaves, Inc., Mollanvick, Inc., Glatfelter Composite Fibers N. A., Inc., Glatfelter Advance Materials N.A., Inc., and Glatfelter Holdings, LLC. The guarantees are subject to certain customary release provisions including i) the designation of such subsidiary as an unrestricted or excluded subsidiary; (ii) in connection with any sale or disposition of the capital stock of the subsidiary guarantor; and (iii) upon our exercise of our legal defeasance option or our covenant defeasance option, all of which are more fully described in the Indenture dated as of October 3, 2012 and the First Supplemental Indenture dated as of October 27, 2015, among us, the Guarantors and US Bank National Association, as Trustee, relating to the 5.375% Notes. The following presents our condensed consolidating statements of income, including comprehensive income and cash flows for the years ended December 31, 2016, 2015 and 2014 and our condensed consolidating balance sheets as of December 31, 2016 and 2015. Condensed Consolidating Statement of Income for the year ended December 31, 2016 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net sales $ 843,582 $ 75,000 $ 755,860 $ (69,645 ) $ 1,604,797 Energy and related sales, net 6,141 — — — 6,141 Total revenues 849,723 75,000 755,860 (69,645 ) 1,610,938 Costs of products sold 763,109 70,991 627,880 (69,645 ) 1,392,335 Gross profit 86,614 4,009 127,980 — 218,603 Selling, general and administrative expenses 133,387 (156 ) 57,463 — 190,694 Loss on dispositions of plant equipment and timberlands, net 177 — 39 — 216 Operating income (loss) (46,950 ) 4,165 70,478 — 27,693 Other non-operating income (expense) Interest expense (17,436 ) (41 ) (3,060 ) 4,715 (15,822 ) Interest income 687 4,177 57 (4,715 ) 206 Equity in earnings of subsidiaries 61,007 58,347 — (119,354 ) — Other, net (2,312 ) (3,966 ) 5,007 — (1,271 ) Total other non-operating income (expense) 41,946 58,517 2,004 (119,354 ) (16,887 ) Income (loss) before income taxes (5,004 ) 62,682 72,482 (119,354 ) 10,806 Income tax provision (benefit) (26,558 ) 1,675 14,135 — (10,748 ) Net income 21,554 61,007 58,347 (119,354 ) 21,554 Other comprehensive loss (14,120 ) (25,916 ) (25,176 ) 51,092 (14,120 ) Comprehensive income $ 7,434 $ 35,091 $ 33,171 $ (68,262 ) $ 7,434 Condensed Consolidating Statement of Income for the year ended December 31, 2015 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net sales $ 875,026 $ 84,704 $ 779,380 $ (78,026 ) $ 1,661,084 Energy and related sales, net 5,664 — — — 5,664 Total revenues 880,690 84,704 779,380 (78,026 ) 1,666,748 Costs of products sold 811,329 80,455 650,025 (78,026 ) 1,463,783 Gross profit 69,361 4,249 129,355 — 202,965 Selling, general and administrative expenses 71,751 821 55,134 — 127,706 Gain on dispositions of plant equipment and timberlands, net (19,720 ) (1,183 ) (210 ) — (21,113 ) Operating income 17,330 4,611 74,431 — 96,372 Other non-operating income (expense) Interest expense (18,147 ) — (36,859 ) 37,542 (17,464 ) Interest income 673 37,127 26 (37,543 ) 283 Equity in earnings of subsidiaries 61,946 24,737 — (86,683 ) — Other, net (3,389 ) (1,471 ) 4,245 — (615 ) Total other non-operating income (expense) 41,083 60,393 (32,588 ) (86,684 ) (17,796 ) Income before income taxes 58,413 65,004 41,843 (86,684 ) 78,576 Income tax provision (benefit) (6,162 ) 2,922 17,241 — 14,001 Net income 64,575 62,082 24,602 (86,684 ) 64,575 Other comprehensive income (loss) (35,616 ) (41,010 ) 29,680 11,330 (35,616 ) Comprehensive income $ 28,959 $ 21,072 $ 54,282 $ (75,354 ) $ 28,959 Condensed Consolidating Statement of Income for the year ended December 31, 2014 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net sales $ 902,892 $ 78,077 $ 897,363 $ (75,917 ) $ 1,802,415 Energy and related sales, net 7,927 — — — 7,927 Total revenues 910,819 78,077 897,363 (75,917 ) 1,810,342 Costs of products sold 830,710 74,414 745,981 (75,917 ) 1,575,188 Gross profit 80,109 3,663 151,382 — 235,154 Selling, general and administrative expenses 67,086 1,765 64,384 — 133,235 Gain on dispositions of plant equipment and timberlands, net (3,545 ) (1,316 ) — — (4,861 ) Operating income 16,568 3,214 86,998 — 106,780 Other non-operating income (expense) Interest expense (19,105 ) — (102,571 ) 102,755 (18,921 ) Interest income 638 102,241 36 (102,756 ) 159 Equity in earnings of subsidiaries 67,590 (34,265 ) — (33,325 ) — Other, net (1,366 ) 317 414 — (635 ) Total other non-operating income (expense) 47,757 68,293 (102,121 ) (33,326 ) (19,397 ) Income (loss) before income taxes 64,325 71,507 (15,123 ) (33,326 ) 87,383 Income tax provision (benefit) (4,921 ) 3,916 19,142 — 18,137 Net income (loss) 69,246 67,591 (34,265 ) (33,326 ) 69,246 Other comprehensive income (loss) (79,513 ) (40,704 ) 28,840 11,864 (79,513 ) Comprehensive income (loss) $ (10,267 ) $ 26,887 $ (5,425 ) $ (21,462 ) $ (10,267 ) Condensed Consolidating Balance Sheet as of December 31, 2016 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Assets Cash and cash equivalents $ 5,082 $ 1,461 $ 48,901 $ — $ 55,444 Other current assets 206,002 256,289 242,187 (265,663 ) 438,815 Plant, equipment and timberlands, net 360,521 31,455 383,922 — 775,898 Investments in subsidiaries 789,565 540,029 — (1,329,594 ) — Other assets 123,010 — 128,092 — 251,102 Total assets $ 1,484,180 $ 829,234 $ 803,102 $ (1,595,257 ) $ 1,521,259 Liabilities and Shareholders' Equity Current liabilities $ 426,628 $ 26,085 $ 135,961 $ (265,663 ) $ 323,011 Long-term debt 283,686 14,000 65,961 — 363,647 Deferred income taxes 10,221 (729 ) 45,503 — 54,995 Other long-term liabilities 109,819 313 15,648 — 125,780 Total liabilities 830,354 39,669 263,073 (265,663 ) 867,433 Shareholders’ equity 653,826 789,565 540,029 (1,329,594 ) 653,826 Total liabilities and shareholders’ equity $ 1,484,180 $ 829,234 $ 803,102 $ (1,595,257 ) $ 1,521,259 Condensed Consolidating Balance Sheet as of December 31, 2015 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Assets Cash and cash equivalents $ 59,130 $ 465 $ 45,709 $ — $ 105,304 Other current assets 199,690 238,515 239,367 (230,509 ) 447,063 Plant, equipment and timberlands, net 286,334 1,114 411,416 — 698,864 Investments in subsidiaries 737,450 507,116 — (1,244,566 ) — Other assets 106,586 — 142,599 — 249,185 Total assets $ 1,389,190 $ 747,210 $ 839,091 $ (1,475,075 ) $ 1,500,416 Liabilities and Shareholders' Equity Current liabilities $ 363,037 $ 9,725 $ 162,081 $ (230,523 ) $ 304,320 Long-term debt 247,075 — 106,221 — 353,296 Deferred income taxes 28,561 (79 ) 47,976 — 76,458 Other long-term liabilities 87,270 — 15,825 — 103,095 Total liabilities 725,943 9,646 332,103 (230,523 ) 837,169 Shareholders’ equity 663,247 737,564 506,988 (1,244,552 ) 663,247 Total liabilities and shareholders’ equity $ 1,389,190 $ 747,210 $ 839,091 $ (1,475,075 ) $ 1,500,416 Condensed Consolidating Statement of Cash Flows for the year ended December 31, 2016 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net cash provided (used) by Operating activities $ 33,109 $ 1,275 $ 81,726 $ — $ 116,110 Investing activities Expenditures for purchases of plant, equipment and timberlands (104,595 ) (30,682 ) (24,881 ) — (160,158 ) Proceeds from disposals of plant, equipment and timberlands, net 41 — 29 — 70 Repayments from intercompany loans — 15,601 — (15,601 ) — Advances of intercompany loans — (18,330 ) — 18,330 — Intercompany capital contributed (17,000 ) (500 ) — 17,500 — Other (800 ) — — — (800 ) Total investing activities (122,354 ) (33,911 ) (24,852 ) 20,229 (160,888 ) Financing activities Net long-term borrowings 36,000 14,000 (35,886 ) — 14,114 Payments of borrowing costs (136 ) — — — (136 ) Payment of dividends to shareholders (21,589 ) — — — (21,589 ) Repayments of intercompany loans — — (15,601 ) 15,601 — Borrowings of intercompany loans 18,330 — — (18,330 ) — Intercompany capital (returned) received — 17,000 500 (17,500 ) — Payment of intercompany dividend — 632 (632 ) - — Proceeds from government grants 3,582 2,000 — — 5,582 Payments related to share-based compensation awards and other (990 ) — — — (990 ) Total financing activities 35,197 33,632 (51,619 ) (20,229 ) (3,019 ) Effect of exchange rate on cash — — (2,063 ) — (2,063 ) Net increase (decrease) in cash (54,048 ) 996 3,192 — (49,860 ) Cash at the beginning of period 59,130 465 45,709 — 105,304 Cash at the end of period $ 5,082 $ 1,461 $ 48,901 $ — $ 55,444 Condensed Consolidating Statement of Cash Flows for the year ended December 31, 2015 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net cash provided (used) by Operating activities $ 34,391 $ 627 $ 98,725 $ — $ 133,743 Investing activities Expenditures for purchases of plant, equipment and timberlands (65,265 ) (109 ) (34,515 ) — (99,889 ) Proceeds from disposals of plant, equipment and timberlands, net 22,741 1,213 505 — 24,459 Repayments from intercompany loans — 57,855 — (57,855 ) — Advances of intercompany loans — (49,230 ) — 49,230 — Intercompany capital (contributed) returned 10,100 (300 ) — (9,800 ) — Acquisitions, net of cash acquired — — (224 ) — (224 ) Other (1,600 ) — — — (1,600 ) Total investing activities (34,024 ) 9,429 (34,234 ) (18,425 ) (77,254 ) Financing activities Net repayments of indebtedness — — (24,650 ) — (24,650 ) Payments of borrowing costs (1,329 ) — — — (1,329 ) Payment of dividends to shareholders (20,443 ) — — — (20,443 ) Repayments of intercompany loans (9,158 ) — (48,697 ) 57,855 — Borrowings of intercompany loans 49,230 — — (49,230 ) — Intercompany capital (returned) received — (10,100 ) 300 9,800 — Proceeds from government grants 421 — — — 421 Payments related to share-based compensation awards and other (2,166 ) — 151 — (2,015 ) Total financing activities 16,555 (10,100 ) (72,896 ) 18,425 (48,016 ) Effect of exchange rate on cash — — (3,006 ) — (3,006 ) Net decrease in cash 16,922 (44 ) (11,411 ) — 5,467 Cash at the beginning of period 42,208 509 57,120 — 99,837 Cash at the end of period $ 59,130 $ 465 $ 45,709 $ — $ 105,304 Condensed Consolidating Statement of Cash Flows for the year ended December 31, 2014 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net cash provided (used) by Operating activities $ 36,240 $ 4,159 $ 59,178 $ — $ 99,577 Investing activities Expenditures for plant, equipment and timberlands (34,518 ) — (31,528 ) — (66,046 ) Proceeds from disposal plant, equipment and timberlands, net 3,707 1,355 10 — 5,072 Repayments from intercompany loans — 20,840 — (20,840 ) — Advances of intercompany loans (12,671 ) (26,340 ) — 39,011 — Acquisitions, net of cash acquired — — (8,015 ) — (8,015 ) Other (600 ) — — — (600 ) Total investing activities (44,082 ) (4,145 ) (39,533 ) 18,171 (69,589 ) Financing activities Net proceeds from indebtedness — — (18,128 ) — (18,128 ) Payments of note offering costs — — — — — Payment of dividends to shareholders (18,696 ) — — — (18,696 ) Repurchases of common stock (12,180 ) — — — (12,180 ) Repayments of intercompany loans — — (20,840 ) 20,840 — Borrowings of intercompany loans 26,340 — 12,671 (39,011 ) — Payments related to share-based compensation awards and other (1,630 ) — (247 ) — (1,877 ) Total financing activities (6,166 ) — (26,544 ) (18,171 ) (50,881 ) Effect of exchange rate on cash — — (2,152 ) — (2,152 ) Net increase (decrease) in cash (14,008 ) 14 (9,051 ) — (23,045 ) Cash at the beginning of period 56,216 495 66,171 — 122,882 Cash at the end of period $ 42,208 $ 509 $ 57,120 $ — $ 99,837

Quarterly Results

Quarterly Results	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Results	24. QUARTERLY RESULTS (UNAUDITED) Earnings (loss) In thousands, Net sales Gross profit Net income (loss) per share except per share 2016 2015 2016 2015 2016 2015 2016 2015 First $ 402,218 $ 417,469 $ 57,843 $ 52,108 $ 16,168 $ 13,925 $ 0.37 $ 0.32 Second 406,413 410,803 42,723 32,833 1,965 2,848 0.04 0.06 Third 405,301 419,960 61,170 59,908 19,601 13,504 0.44 0.31 Fourth 390,865 412,852 56,867 58,116 (16,180 ) 34,298 (0.37 ) 0.78

Valuation and Qualifying Accoun

Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2016
Valuation And Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts	P. H. GLATFELTER COMPANY AND SUBSIDIARIES SUPPLEMENTAL FINANCIAL STATEMENT SCHEDULE For each of the three years ended December 31, 2016 Valuation and Qualifying Accounts Allowance for In thousands Doubtful Accounts Sales Discounts and Deductions 2016 2015 2014 2016 2015 2014 Balance, beginning of year $ 2,239 $ 2,703 $ 2,725 $ 1,593 $ 1,809 $ 1,810 Provision 32 7 1,061 4,283 3,856 4,356 Write-offs, recoveries and discounts allowed (497 ) (275 ) (946 ) (4,368 ) (3,649 ) (4,719 ) Other (a) (55 ) (196 ) (137 ) (46 ) (423 ) 362 Balance, end of year $ 1,719 $ 2,239 $ 2,703 $ 1,462 $ 1,593 $ 1,809 The provision for doubtful accounts is included in selling, general and administrative expense and the provision for sales discounts and deductions is deducted from sales. The related allowances are deducted from accounts receivable. (a) Relates primarily to changes in currency exchange rates.

Accounting Policies (Policies)

Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of Glatfelter and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated.
Accounting Estimates	Accounting Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingencies as of the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Management believes the estimates and assumptions used in the preparation of these consolidated financial statements are reasonable, based upon currently available facts and known circumstances, but recognizes that actual results may differ from those estimates and assumptions.
Cash and Cash Equivalents	Cash and Cash Equivalents We classify all highly liquid instruments with an original maturity of three months or less at the time of purchase as cash equivalents.
Inventories	Inventories Inventories are stated at the lower of cost or market. Raw materials, in-process and finished inventories of our U.S. manufacturing operations are valued using the last-in, first-out (LIFO) method, and the supplies inventories are valued principally using the average-cost method. Inventories at our foreign operations are valued using the average cost method.
Plant, Equipment and Timberlands	Plant, Equipment and Timberlands For financial reporting purposes, depreciation is computed using the straight-line method over the estimated useful lives of the respective assets. The range of estimated service lives used to calculate financial reporting depreciation for principal items of plant and equipment are as follows: Buildings 15 – 45 Years Machinery and equipment 5 – 40 Years Other 3 – 25 Years
Maintenance and Repairs	Maintenance and Repairs Maintenance and repairs costs are charged to income and major renewals and betterments are capitalized. At the time property is retired or sold, the net carrying value is eliminated and any resultant gain or loss is included in income.
Valuation of Long-lived Assets, Intangible Assets and Goodwill	Valuation of Long-lived Assets, Intangible Assets and Goodwill We evaluate long-lived assets for impairment when a specific event indicates that the carrying value of an asset may not be recoverable. Recoverability is assessed based on estimates of future cash flows expected to result from the use and eventual disposition of the asset. If the sum of expected undiscounted cash flows is less than the carrying value of the asset, the asset’s fair value is estimated and an impair ment loss is recognized for the amount by which the carrying value exceeds the estimated fair value. Goodwill and non-amortizing tradename intangible assets are reviewed, on a discounted cash flow basis, during the third quarter of each year for impairment or more frequently if impairment indicators are present. Impairment losses, if any, are recognized for the amount by which the carrying value of the reporting unit exceeds its fair value. The carrying value of a reporting unit is defined using an enterprise premise which is generally determined by the difference between the unit’s assets and operating liabilities.
Asset Retirement Obligations	Asset Retirement Obligations In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) No. 410, Asset Retirement and Environmental Obligations , we accrue asset retirement obligations in the period in which obligations relating to future asset retirements are incurred and when a reasonable estimate of fair value can be determined. Under these standards, costs are to be accrued at estimated fair value, and a related long-lived asset is capitalized. Over time, the liability is accreted to its settlement value and the capitalized cost is depreciated over the useful life of the related asset for which the obligation exists. Upon settlement of the liability, we recognize a gain or loss for any difference between the settlement amount and the liability recorded.
Income Taxes	Income Taxes Income taxes are determined using the asset and liability method of accounting for income taxes in accordance with FASB ASC 740 Income Taxes (“ASC 740”). Under ASC 740, tax expense includes U.S. and international income taxes plus the provision for U.S. taxes on undistributed earnings of international subsidiaries not deemed to be permanently invested. Tax credits and other incentives reduce tax expense in the year the credits are claimed. Certain items of income and expense are not reported in tax returns and financial statements in the same year. The tax effect of such temporary differences is reported in deferred income taxes. Deferred tax assets are recognized if it is more likely than not that the assets will be realized in future years. We establish a valuation allowance for deferred tax assets for which realization is not more likely than not. Significant judgment is required in determining our worldwide provision for income taxes and recording the related assets and liabilities. In the ordinary course of our business, there are many transactions and calculations where the ultimate tax determination is less than certain. We and our subsidiaries are examined by various Federal, State, and foreign tax authorities. We regularly assess the potential outcomes of these examinations and any future examinations for the current or prior years in determining the adequacy of our provision for income taxes. We continually assess the likelihood and amount of potential adjustments and record any necessary adjustments in the period in which the facts that give rise to a revision become known. Investment tax credits are accounted for by the flow-through method, which results in recognition of the benefit in the year in which the credit become available.
Treasury Stock	Treasury Stock Common stock purchased for treasury is recorded at cost. At the date of subsequent reissue, the treasury stock account is reduced by the cost of such stock on the weighted-average cost basis.
Foreign Currency Translation	Foreign Currency Translation Foreign currency translation gains and losses and the effect of exchange rate changes on transactions designated as hedges of net foreign investments are included as a component of other comprehensive income (loss). Transaction gains and losses are included in income in the period in which they occur.
Revenue Recognition	Revenue Recognition We recognize revenue on product sales when the customer takes title and assumes the risks and rewards of ownership. Estimated costs for sales incentives, discounts and sales returns and allowances are recorded as sales deductions in the period in which the related revenue is recognized. Revenue from energy sales is recognized when electricity is delivered to the customer. Certain costs associated with the production of electricity, such as fuel, labor, depreciation and maintenance are netted against energy sales for presentation on the consolidated statements of income. Revenue from renewable energy credits is recorded under the caption “Energy and related sales, net” in the consolidated statements of income and is recognized when all risks, rights and rewards to the certificate are transferred to the counterparty.
Environmental Liabilities	Environmental Liabilities Accruals for losses associated with environmental obligations are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated based on existing legislation and remediation technologies. These accruals are adjusted periodically as assessment and remediation actions continue and/or further legal or technical information develops. Such undiscounted liabilities are exclusive of any insurance or other claims against third parties. Environmental costs are capitalized if the costs extend the life of the asset, increase its capacity and/or mitigate or prevent contamination from future operations. Recoveries of environmental remediation costs from other parties, including insurance carriers, are recorded as assets when their receipt is assured beyond a reasonable doubt.
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing net income by the weighted-average common shares outstanding during the respective periods. Diluted earnings per share is computed by dividing net income by the weighted-average common shares and common share equivalents outstanding during the period. The dilutive effect of common share equivalents is considered in the diluted earnings per share computation using the treasury stock method.
Financial Derivatives and Hedging Activities	Financial Derivatives and Hedging Activities We use financial derivatives to manage exposure to changes in foreign currencies. In accordance with FASB ASC 815 Derivatives and Hedging (“ASC 815”), we record all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether we have elected to designate a derivative in a hedging relationship and apply hedge accounting, and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Cash Flow Hedges The effective portion of the gain or loss on those derivative instruments designated and qualifying as a hedge of the exposure to variability in expected future cash flows related to forecasted transactions is deferred and reported as a component of accumulated other comprehensive income (loss). Deferred gains or losses are reclassified to our results of operations at the time the hedged forecasted transaction is recorded in our results of operations. The effectiveness of cash flow hedges is assessed at inception and quarterly thereafter. If the instrument becomes ineffective or it becomes probable that the originally forecasted transaction will not occur, the related change in fair value of the derivative instrument is also reclassified from accumulated other comprehensive income (loss) and recognized in earnings.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Under the accounting for fair value measurements and disclosures, a fair value hierarchy was established that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The three levels of the fair value hierarchy are described below: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 - Inputs that are both significant to the fair value measurement and unobservable.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-09, Compensation – Stock Compensation (Topic 718) Improvements to Employee Share-Based Payment Accounting designed to simplify certain aspects of accounting for share-based awards. The new ASU requires entities to recognize as a component of income tax expense all excess tax benefits or deficiencies arising from the difference between compensation costs recognized and the intrinsic value at the time an option is exercised or, in the case of restricted stock and similar awards, the fair value upon vesting of an award. Previously such differences were recognized in additional paid in capital as part of an “APIC pool.” In addition, the ASU also requires entities to exclude excess tax benefits and tax deficiencies from the calculation of common share equivalents for purposes of calculating earnings per share. The new standard is required to be adopted, either prospectively or retrospectively, in the first quarter of 2017. We do not believe the adoption of this standard will have a material impact on our reported results of operations or financial position. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers In June 2016, the FASB issued ASU No. 2016-13 Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Accounting Policies (Tables)

Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Schedule of Range of Estimated Service Lives	The range of estimated service lives used to calculate financial reporting depreciation for principal items of plant and equipment are as follows: Buildings 15 – 45 Years Machinery and equipment 5 – 40 Years Other 3 – 25 Years

Energy and Related Sales, Net (

Energy and Related Sales, Net (Tables)	12 Months Ended
	Dec. 31, 2016
Text Block [Abstract]
Summary of Energy and Related Sales Net	The following table summarizes this activity for each of the past three years: Year ended December 31 In thousands 2016 2015 2014 Energy sales $ 3,613 $ 5,315 $ 11,886 Costs to produce (3,972 ) (4,428 ) (6,204 ) Net (359 ) 887 5,682 Renewable energy credits 6,500 4,777 2,245 Total $ 6,141 $ 5,664 $ 7,927

Gain on Dispositions of Plant38

Gain on Dispositions of Plant, Equipment and Timberlands (Tables)	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Summary for Sale of Timberlands and Other Assets	During 2016, 2015 and 2014, we completed the following sales of assets: Dollars in thousands Acres Proceeds Gain (loss) 2016 Other n/a 70 (216 ) Total $ 70 $ (216 ) 2015 Timberlands 15,628 $ 23,917 $ 20,867 Other n/a 542 246 Total $ 24,459 $ 21,113 2014 Timberlands 2,753 $ 5,062 $ 4,855 Other n/a 10 6 Total $ 5,072 $ 4,861

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Details of Basic and Diluted Earnings Per Share (EPS)	The following table sets forth the details of basic and diluted earnings per share (EPS): Year ended December 31 In thousands, except per share 2016 2015 2014 Net income $ 21,554 $ 64,575 $ 69,246 Weighted average common shares outstanding used in basic EPS 43,558 43,397 43,201 Common shares issuable upon exercise of dilutive stock options and PSAs / RSUs 571 545 865 Weighted average common shares outstanding and common share equivalents used in diluted EPS 44,129 43,942 44,066 Earnings per share Basic $ 0.49 $ 1.49 $ 1.60 Diluted 0.49 1.47 1.57
Number of Potential Common Shares that have been Excluded from Computation of Diluted Earnings Per Share for Indicated Period Due to Their Anti-Dilutive Nature	The following table sets forth the potential common shares outstanding for stock options that were not included in the computation of diluted EPS for the period indicated, because their effect would be anti-dilutive: Year ended December 31 In thousands 2016 2015 2014 Potential common shares 596 678 277

Accumulated Other Comprehensi40

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income (Losses)	The following table sets forth details of the changes in accumulated other comprehensive income (losses) for the three years ended December 31, 2016, 2015 and 2014. In thousands Currency translation adjustments Unrealized gain (loss) on cash flow hedges Change in pensions Change in other postretirement defined benefit plans Total Balance at January 1, 2016 $ (73,041 ) $ (225 ) $ (120,714 ) $ 3,494 $ (190,486 ) Other comprehensive income before reclassifications (net of tax) (27,407 ) 1,247 (4,334 ) 2,086 (28,408 ) Amounts reclassified from accumulated other comprehensive income (net of tax) — 478 14,392 (582 ) 14,288 Net current period other comprehensive income (loss) (27,407 ) 1,725 10,058 1,504 (14,120 ) Balance at December 31, 2016 $ (100,448 ) $ 1,500 $ (110,656 ) $ 4,998 $ (204,606 ) Balance at January 1, 2015 $ (34,224 ) $ 2,356 $ (120,260 ) $ (2,742 ) $ (154,870 ) Other comprehensive income before reclassifications (net of tax) (38,817 ) 1,620 (12,995 ) 6,266 (43,926 ) Amounts reclassified from accumulated other comprehensive income (net of tax) — (4,201 ) 12,541 (30 ) 8,310 Net current period other comprehensive income (loss) (38,817 ) (2,581 ) (454 ) 6,236 (35,616 ) Balance at December 31, 2015 $ (73,041 ) $ (225 ) $ (120,714 ) $ 3,494 $ (190,486 ) Balance at January 1, 2014 $ 15,141 $ (941 ) $ (89,547 ) $ (10 ) $ (75,357 ) Other comprehensive income before reclassifications (net of tax) (49,365 ) 2,826 (40,266 ) (2,803 ) (89,608 ) Amounts reclassified from accumulated other comprehensive income (net of tax) — 471 9,553 71 10,095 Net current period other comprehensive income (loss) (49,365 ) 3,297 (30,713 ) (2,732 ) (79,513 ) Balance at December 31, 2014 $ (34,224 ) $ 2,356 $ (120,260 ) $ (2,742 ) $ (154,870 )
Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Losses)	The following table sets forth the amounts reclassified from accumulated other comprehensive income (losses) for the years indicated. Year ended December 31 In thousands 2016 2015 2014 Description Line Item in Statements of Income Cash flow hedges (Note 19) (Gains) losses on cash flow hedges $ 551 $ (5,752 ) $ 655 Costs of products sold Tax expense (benefit) (73 ) 1,551 (184 ) Income tax provision Net of tax 478 (4,201 ) 471 Retirement plan obligations (Note 11) Amortization of deferred benefit pension plan items Prior service costs 2,026 2,300 2,503 Costs of products sold 672 762 830 Selling, general and administrative Actuarial losses 9,798 12,745 8,965 Costs of products sold 3,373 4,388 3,086 Selling, general and administrative Settlement recognition 7,306 — — Selling, general and administrative 23,175 20,195 15,384 Tax expense (benefit) (8,783 ) (7,654 ) (5,831 ) Income tax provision Net of tax 14,392 12,541 9,553 Amortization of deferred benefit other plan items Prior service costs (150 ) (230 ) (237 ) Costs of products sold (32 ) (50 ) (51 ) Selling, general and administrative Actuarial losses (621 ) 190 331 Costs of products sold (134 ) 41 71 Selling, general and administrative (937 ) (49 ) 114 Tax expense (benefit) 355 19 (43 ) Income tax provision Net of tax (582 ) (30 ) 71 Total reclassifications, net of tax $ 14,288 $ 8,310 $ 10,095

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Schedule of Provision for Income Taxes from Operations	The provision for income taxes from operations consisted of the following: Year ended December 31 In thousands 2016 2015 2014 Current taxes Federal $ 2,216 $ 5,047 $ 3,291 State (1,112 ) (1,680 ) 238 Foreign 10,203 12,536 24,027 11,307 15,903 27,556 Deferred taxes and other Federal (24,411 ) (7,287 ) (3,975 ) State (1,723 ) 564 (147 ) Foreign 4,079 4,821 (5,297 ) (22,055 ) (1,902 ) (9,419 ) Income tax provision (benefit) $ (10,748 ) $ 14,001 $ 18,137
Schedule of Domestic and Foreign Components of Pretax Income (Loss) from Operations	The following are the domestic and foreign components of pretax income (loss) from operations: Year ended December 31 In thousands 2016 2015 2014 United States $ (63,315 ) $ 2,382 $ 4,637 Foreign 74,121 76,194 82,746 Total pretax income $ 10,806 $ 78,576 $ 87,383
Schedule of Reconciliation of Federal Statutory Rate to Company's Effective Tax Rate	A reconciliation between the income tax provision, computed by applying the statutory federal income tax rate of 35% to income before income taxes, and the actual income tax provision is as follows: Year ended December 31 2016 2015 2014 Federal income tax provision at statutory rate 35.0 % 35.0 % 35.0 % State income taxes, net of federal income tax benefit (15.0 ) 0.3 0.2 Foreign income tax rate differential (96.3 ) (8.6 ) (5.0 ) Rate changes due to enacted legislation (6.7 ) – (2.2 ) Tax effect of credits (30.3 ) (1.9 ) (2.0 ) Provision for (resolution of ) tax matters 2.8 (2.1 ) 1.3 Permanent differences on non-U.S. earnings - (4.4 ) (2.8 ) Valuation allowance 7.1 0.4 (2.7 ) Other 3.9 (0.9 ) (1.0 ) Actual tax rate (99.5 )% 17.8 % 20.8 %
Schedule of Deferred Tax Assets and Liabilities	The sources of deferred income taxes were as follows at December 31: In thousands 2016 2015 Reserves $ 4,625 $ 4,720 Environmental 20,868 7,211 Compensation 8,950 8,250 Post-retirement benefits 18,318 19,476 Research & development expenses 6,949 8,925 Inventories 1,464 3,445 Other 993 605 Tax carryforwards 14,438 8,413 Deferred tax assets 76,605 61,045 Valuation allowance (4,066 ) (3,773 ) Net deferred tax assets 72,539 57,272 Property (81,837 ) (84,009 ) Intangible assets (16,561 ) (17,748 ) Pension (29,041 ) (26,885 ) Deferred tax liabilities (127,439 ) (128,642 ) Net deferred tax liabilities $ (54,900 ) $ (71,370 )
Schedule of Non-Current Deferred Tax Assets and Liabilities Balance Sheet Captions	Non-current deferred tax assets and liabilities are included in the following balance sheet captions: December 31 In thousands 2016 2015 Other assets $ 95 $ 5,088 Deferred income taxes 54,995 76,458
Schedule of Unrecognized Tax Benefit	A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits is as follows: In millions 2016 2015 2014 Balance at January 1 $ 12.2 $ 14.9 $ 14.9 Increases in tax positions for prior years 2.0 - 0.7 Decreases in tax positions for prior years (1.4 ) (4.3 ) (0.5 ) Acquisition related: Purchase Accounting - - 0.3 Increases in tax positions for current year 1.9 1.9 3.4 Settlements (0.2 ) - (1.3 ) Lapse in statutes of limitation (0.3 ) (0.3 ) (2.6 ) Balance at December 31 $ 14.2 $ 12.2 $ 14.9
Summary of Tax Years that Remain Subject to Examination by Major Jurisdiction	The following table summarizes tax years that remain subject to examination by major jurisdiction: Open Tax Years Jurisdiction Examinations not yet initiated Examination in progress United States Federal 2013 - 2016 N/A State 2012 - 2016 2014 Canada (1) 2010 - 2016 N/A Germany (1) 2012 - 2016 2011 - 2013 France 2014 - 2016 2011 - 2012 United Kingdom 2015 - 2016 N/A Philippines 2015 -2016 2013, 2014
Summary of Information Related to Interest and Penalties on Uncertain Tax Positions	The following table summarizes information related to interest and penalties on uncertain tax positions: As of or for the year ended December 31, In millions 2016 2015 2014 Accrued interest payable $ 0.5 $ 0.6 $ 0.6 Interest expense (income) (0.1 ) – – Penalties – – –

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Restricted Stock Units (RSU) and Performance Share Awards (PSAs) [Member]
Summary of Share Based Compensation Activity	The following table summarizes RSU and PSA activity during the past three years: Units 2016 2015 2014 Balance at January 1, 674,523 888,942 1,001,814 Granted 302,722 164,666 178,882 Forfeited (148,232 ) (92,183 ) (47,379 ) Shares delivered (149,975 ) (286,902 ) (244,375 ) Balance at December 31, 679,038 674,523 888,942
Compensation Expense for Stock Option Activity	2016 2015 2014 Compensation expense $ 3,154 $ 1,758 $ 2,652
Stock Only Stock Appreciation Rights (SOSARs) [Member]
Summary of Share Based Compensation Activity	The following table sets forth information related to outstanding SOSARS: 2016 2015 2014 SOSARS Shares Wtd Avg Exercise Price Shares Wtd Avg Exercise Price Shares Wtd Avg Exercise Price Outstanding at January 1, 2,199,742 $ 17.82 1,864,707 $ 16.20 1,977,133 $ 13.91 Granted 743,925 17.54 423,590 24.62 281,881 29.78 Exercised (61,190 ) 10.70 (70,347 ) 14.12 (364,465 ) 13.99 Canceled / forfeited (145,861 ) 22.80 (18,208 ) 25.41 (29,842 ) 19.36 Outstanding at December 31, 2,736,616 $ 17.64 2,199,742 $ 17.82 1,864,707 $ 16.20 Exercisable at December 31, 1,740,591 16.19 1,504,599 14.48 1,285,998 12.94 Vested and expected to vest 2,725,611 2,178,708 1,754,295 SOSAR Grants Weighted average grant date fair value per share $ 4.07 $ 7.46 $ 9.81 Aggregate grant date fair value (in thousands) $ 3,013 $ 3,134 $ 2,764 Black-Scholes assumptions Dividend yield 2.85 % 1.94 % 1.48 % Risk free rate of return 1.34 % 1.64 % 1.74 % Volatility 31.97 % 36.38 % 37.59 % Expected life 6 6 6 Compensation expense (in thousands) $ 2,735 $ 2,645 $ 2,086

Retirement Plans and Other Po43

Retirement Plans and Other Post-Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2016
Compensation And Retirement Disclosure [Abstract]
Schedule of Change in Benefit Obligation and Plan Assets	Claims are paid as reported. Pension Benefits Other Benefits In millions 2016 2015 2016 2015 Change in Benefit Obligation Balance at beginning of year $ 541.9 $ 577.6 $ 51.0 $ 59.8 Service cost 10.5 11.6 1.1 1.4 Interest cost 24.5 23.3 2.0 2.0 Plan amendments 5.5 - - - Participant contributions - - 1.0 1.2 Actuarial (gain)/loss 17.0 (34.8 ) (3.4 ) (10.1 ) Benefits paid (22.9 ) (34.8 ) (3.8 ) (3.3 ) One-time settlement (24.2 ) - - - Effect of currency rate changes (0.3 ) (1.0 ) - - Balance at end of year $ 552.0 $ 541.9 $ 47.9 $ 51.0 Change in Plan Assets Fair value of plan assets at beginning of year $ 594.9 $ 638.0 $ - $ - Actual return on plan assets 60.8 (10.3 ) - - Total contributions 2.1 2.0 3.8 3.3 Benefits paid (22.9 ) (34.8 ) (3.8 ) (3.3 ) One-time settlement (24.2 ) - - - Fair value of plan assets at end of year $ 610.7 594.9 - - Funded status at end of year $ 58.7 $ 53.0 $ (47.9 ) $ (51.0 )
Summary of Amounts Recognized in Consolidated Balance Sheets	In 2016, the we recorded a pension settlement charge of $7.3 million and settled $24.2 million of benefits in connection with a voluntary program offered to deferred vested terminated participants. Amounts recognized in the consolidated balance sheets consist of the following as of December 31: Pension Benefits Other Benefits In millions 2016 2015 2016 2015 Other assets $ 96.7 $ 89.1 $ - $ - Current liabilities (2.0 ) (2.1 ) (3.2 ) (3.2 ) Other long-term liabilities (36.0 ) (34.0 ) (44.7 ) (47.7 ) Net amount recognized $ 58.7 $ 53.0 $ (47.9 ) $ (50.9 )
Components of Amounts Recognized as Accumulated Other Comprehensive Income on Pre-Tax Basis	The components of amounts recognized as “Accumulated other comprehensive income” consist of the following on a pre-tax basis: Pension Benefits Other Benefits In millions 2016 2015 2016 2015 Prior service cost/(credit) $ 14.8 $ 12.0 $ (0.6 ) $ (0.8 ) Net actuarial loss 165.9 185.0 (7.4 ) (4.8 )
Weighted-Average Assumptions Used in Computing Benefit Obligations	The weighted-average assumptions used in computing the benefit obligations above were as follows: Pension Benefits Other Benefits 2016 2015 2016 2015 Discount rate – benefit obligation 4.43 % 4.65 % 4.18 % 4.38 % Future compensation growth rate 3.00 3.50 – –
Information for Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets	Information for pension plans with an accumulated benefit obligation in excess of plan assets was as follows: In millions 2016 2015 Projected benefit obligation $ 37.9 $ 36.1 Accumulated benefit obligation 34.6 33.1 Fair value of plan assets – –
Schedule of Net Periodic Benefit Cost of Pension and Other Benefits	Net periodic benefit cost includes the following components: Year Ended December 31 In millions 2016 2015 2014 Pension Benefits Service cost $ 10.5 $ 11.6 $ 10.4 Interest cost 24.5 23.3 24.8 Expected return on plan assets (45.4 ) (46.0 ) (43.9 ) Amortization of prior service cost 2.7 3.1 3.3 Amortization of actuarial loss 13.2 17.1 12.1 One-time settlement charge 7.3 — — Total net periodic benefit cost $ 12.8 $ 9.1 $ 6.7 Other Benefits Service cost $ 1.1 $ 1.4 $ 1.5 Interest cost 2.0 2.0 2.5 Amortization of prior service cost/(credit) (0.2 ) (0.3 ) (0.3 ) Amortization of actuarial loss (0.8 ) 0.2 0.4 Total net periodic benefit cost $ 2.1 $ 3.3 $ 4.1
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss)	Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) were as follows: Year Ended December 31 In millions 2016 2015 Pension Benefits Actuarial loss $ 1.4 $ 21.5 Plan amendments 5.5 — Recognized prior service cost (2.7 ) (3.1 ) Recognized actuarial losses (20.5 ) (17.1 ) Total recognized in other comprehensive loss (16.3 ) 1.3 Total recognized in net periodic benefit cost and other comprehensive loss $ (3.5 ) $ 10.4 Other Benefits Actuarial (gain) loss $ (3.4 ) $ (10.1 ) Amortization of prior service cost 0.2 0.3 Amortization of actuarial losses 0.8 (0.2 ) Total recognized in other comprehensive (income) loss (2.4 ) (10.0 ) Total recognized in net periodic benefit cost and other comprehensive (income) loss $ (0.3 ) $ (6.7 )
Schedule of Defined Benefit Plan Weighted-Average Assumptions Used in Computing Net Periodic Benefit Cost	The weighted-average assumptions used in computing the net periodic benefit cost information above were as follows: Year Ended December 31 2016 2015 2014 Pension Benefits Discount rate – benefit expense 4.65 % 4.21 % 5.20 % Future compensation growth rate 3.50 4.00 4.00 Expected long-term rate of return on plan assets 7.75 8.00 8.00 Other Benefits Discount rate – benefit expense 4.38 % 3.89 % 4.52 %
Schedule of Health Care Cost Trend Rates Used in Calculating Benefit Obligations	Assumed health care cost trend rates used to determine benefit obligations at December 31 were as follows: 2016 2015 Health care cost trend rate assumed for next year 6.50 % 6.80 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 4.50 4.50 Year that the rate reaches the ultimate rate 2037 2037
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates	Assumed health care cost trend rates have a significant effect on the amounts reported for health care plans. A one percentage-point change in assumed health care cost trend rates would have the following effects: One Percentage Point In millions Increase Decrease Effect on: Post-retirement benefit obligation $ 3.8 $ (3.4 ) Total of service and interest cost components 0.3 (0.3 )
Schedule of Targeted Range of Investment Allocations of Plan Assets	Risk is minimized by diversification by asset class, by style of each manager and by sector and industry limits when applicable. The targeted range of investment allocations of Plan assets is as follows: Range Domestic Equity 35 % - 45 % International equity 8 - 14 Real Estate Investment Trusts (REIT) 2 - 6 Fixed income, cash and cash equivalents 55 - 35
Schedule of Fair Value of Benefit Plan Assets	The table below presents the fair values of our benefit plan assets by level within the fair value hierarchy, as described in Note 2: December 31, 2016 In millions Total Level 1 Level 2 Level 3 Domestic Equity Large cap $ 201.9 $ 7.1 $ 194.8 $ - Small and mid cap 50.9 50.9 - - International equity 79.5 38.8 40.7 - REIT 27.9 27.9 - - Fixed income 237.7 28.5 209.2 - Cash and equivalents 12.8 - 12.8 - Total $ 610.7 $ 153.2 $ 457.5 $ - December 31, 2015 In millions Total Level 1 Level 2 Level 3 Domestic Equity Large cap $ 175.1 $ 58.4 $ 116.7 $ - Small and mid cap 68.7 68.7 - - International equity 79.8 42.2 37.6 - REIT 31.9 31.9 - - Fixed income 222.4 32.3 190.1 - Cash and equivalents 17.0 - 17.0 - Total $ 594.9 $ 233.5 $ 361.4 $ -
Benefit Payments Expected to be Made under Non-Qualified Pension Plans and Other Benefit Plans	Benefit payments expected to be made in 2017 under our non-qualified pension plans and other benefit plans are summarized below: In thousands Nonqualified pension plans $ 1,991 Other benefit plans 3,212
Summary of Benefit Expected to be Paid Out	The following benefit payments under all pension and other benefit plans, and giving effect to expected future service, as appropriate, are expected to be paid: In thousands Pension Benefits Other Benefits 2017 $ 36,885 $ 3,212 2018 37,033 3,548 2019 36,520 4,013 2020 36,871 4,389 2021 36,871 4,488 2022 through 2026 184,679 21,009

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2016
Inventory Disclosure [Abstract]
Inventories, Net of Reserves	Inventories, net of reserves were as follows: December 31 In thousands 2016 2015 Raw materials $ 66,359 $ 60,098 In-process and finished 112,507 115,874 Supplies 70,803 71,242 Total $ 249,669 $ 247,214

Plant, Equipment and Timberla45

Plant, Equipment and Timberlands (Tables)	12 Months Ended
	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Summary of Plant, Equipment and Timberlands	Plant, equipment and timberlands at December 31 were as follows: In thousands 2016 2015 Land and buildings $ 192,877 $ 205,338 Machinery and equipment 1,335,669 1,305,067 Furniture, fixtures, and other 142,110 135,355 Accumulated depreciation (1,036,825 ) (1,009,331 ) 633,831 636,429 Construction in progress 137,665 58,657 Asset retirement obligation, net — 579 Timberlands, less depletion 4,402 3,199 Total $ 775,898 $ 698,864

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	The following table sets forth information with respect to goodwill and other intangible assets: December 31 In thousands 2016 2015 Goodwill – Composite Fibers $ 73,094 $ 76,056 Specialty Papers Customer relationships $ 6,155 $ 6,155 Composite Fibers Tradename 4,195 4,332 Technology and related 35,874 37,625 Customer relationships and related 32,310 33,618 Advanced Airlaid Materials Technology and related 1,377 1,403 Customer relationships and related 2,638 2,725 Total intangibles 82,549 85,858 Accumulated amortization (26,290 ) (22,801 ) Net intangibles $ 56,259 $ 63,057
Summary of Amortization of Intangible Assets	amortized over periods ranging from 14 years to 20 years. The following table sets forth information pertaining to amortization of intangible assets: In thousands 2016 2015 2014 Aggregate amortization expense: $ 4,852 $ 5,340 $ 6,136 Estimated amortization expense: 2017 4,464 2018 4,464 2019 4,464 2020 4,336 2021 3,973

Other Long-Term Assets (Tables)

Other Long-Term Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Other Assets Noncurrent [Abstract]
Summary of Other Long-Term Assets	Other long-term assets consist of the following: December 31 In thousands 2016 2015 Pension $ 96,699 $ 89,093 Other 25,050 20,979 Total $ 121,749 $ 110,072

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	12 Months Ended
	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Summary of Other Current Liabilities	Other current liabilities consist of the following: December 31 In thousands 2016 2015 Accrued payroll and benefits $ 48,306 $ 35,079 Other accrued compensation and retirement benefits 6,828 6,866 Income taxes payable 211 2,921 Accrued rebates 14,329 18,248 Other accrued expenses 49,576 43,330 Total $ 119,250 $ 106,444

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Summary of Long-Term Debt	Long-term debt is summarized as follows: December 31 In thousands 2016 2015 Revolving credit facility, due Mar. 2020 $ 61,595 $ 58,792 5.375% Notes, due Oct. 2020 250,000 250,000 2.40% Term Loan, due Jun. 2022 8,282 10,109 2.05% Term Loan, due Mar. 2023 35,163 42,130 1.30% Term Loan, due Jun. 2023 9,788 - 1.55% Term Loan, due Sep. 2025 10,333 2,839 Total long-term debt 375,161 363,870 Less current portion (8,961 ) (7,366 ) Unamortized deferred issuance costs (2,553 ) (3,208 ) Long-term debt, net of current portion $ 363,647 $ 353,296
Summary of Debts Borrowed by Subsidiary	Glatfelter Gernsbach GmbH & Co. KG (“Gernsbach”), a wholly-owned subsidiary of ours, entered into a series of borrowing agreements with IKB Deutsche Industriebank AG, Düsseldorf (“IKB”) as summarized below: Amounts in thousands Original Principal Interest Rate Maturity Borrowing date Apr. 11, 2013 € 42,700 2.05 % Mar. 2023 Sep. 4, 2014 10,000 2.40 % Jun. 2022 Oct. 10, 2015 2,608 1.55 % Sep. 2025 May 4, 2016 7,195 1.55 % Sep. 2025 Apr. 26, 2016 10,000 1.30 % Jun. 2023
Amortization of Term Loan Agreements Together with Maturities of Other Long-term Debt	The following schedule sets forth the amortization of our term loan agreements together with the maturity of our other long-term debt during the indicated year. In thousands 2017 $ 8,961 2018 9,930 2019 9,930 2020 321,525 2021 9,930 Thereafter 14,885

Fair Value of Financial Instr50

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Carrying Value and Fair Value of Long-Term Debt	The following table sets forth the carrying value and fair value of long-term debt as of December 31: 2016 2015 In thousands Carrying Value Fair Value Carrying Value Fair Value Variable rate debt $ 61,595 $ 61,595 $ 58,792 $ 58,792 Fixed-rate bonds 250,000 256,563 250,000 250,938 2.40% Term loan 8,282 8,877 10,109 10,535 2.05% Term loan 35,163 37,089 42,130 42,886 1.30% Term Loan 9,788 10,062 - - 1.55% Term loan 10,333 10,082 2,839 2,524 Total $ 375,161 $ 384,268 $ 363,870 $ 365,675

Financial Derivatives and Hed51

Financial Derivatives and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Values of Derivative Instruments	Fair Value Measurements The following table summarizes the fair values of derivative instruments as of December 31 for the year indicated and the line items in the accompanying consolidated balance sheets where the instruments are recorded: December 31 December 31 In thousands 2016 2015 2016 2015 Prepaid Expenses and Other Other Current Balance sheet caption Current Assets Liabilities Designated as hedging: Forward foreign currency exchange contracts $ 2,625 $ 955 $ 1,493 $ 1,545 Not designated as hedging: Forward foreign currency exchange contracts $ 60 $ 68 $ 104 $ 49
Income or (Loss) from Derivative Instruments Recognized in Results of Operations	The following table summarizes the amount of income or loss from derivative instruments recognized in our results of operations for the periods indicated and the line items in the accompanying consolidated statements of income where the results are recorded: Year ended December 31 In thousands 2016 2015 2014 Designated as hedging: Forward foreign currency exchange contracts: Effective portion – cost of products sold $ (551 ) $ 5,752 $ (655 ) Ineffective portion – other – net (166 ) (152 ) 184 Not designated as hedging : Forward foreign currency exchange contracts: Other – net $ 806 $ 599 $ 1,599
Fair Value Amounts Recorded as Component of Accumulated Other Comprehensive Income	A rollforward of fair value amounts recorded as a component of accumulated other comprehensive income is as follows: In thousands 2016 2015 Balance at January 1, $ (178 ) $ 3,282 Deferred (losses) gains on cash flow hedges 1,509 2,292 Reclassified to earnings 551 (5,752 ) Balance at December 31, $ 1,882 $ (178 )
Designated as Hedging [Member]
Outstanding Derivatives Used to Hedge Foreign Exchange Risks	We had the following outstanding derivatives that were used to hedge foreign exchange risks associated with forecasted transactions and designated as hedging instruments: December 31 In thousands 2016 2015 Derivative Sell/Buy - sell notional Euro / British Pound 10,373 10,527 Sell/Buy - buy notional Euro / Philippine Peso 699,279 758,634 British Pound / Philippine Peso 557,025 542,063 Euro / U.S. Dollar 43,951 51,433 U.S. Dollar / Canadian Dollar 35,290 34,649 U.S. Dollar / Euro 15,379 —
Not Designated as Hedging [Member]
Outstanding Derivatives Used to Hedge Foreign Exchange Risks	December 31 In thousands 2016 2015 Derivative Sell/Buy - sell notional U.S. Dollar / Euro — — U.S. Dollar / British Pound 10,500 10,000 Euro / British Pound — — British Pound / Euro 2,500 3,500 Sell/Buy - buy notional Euro / U.S. Dollar 3,500 12,500 British Pound / Euro 18,500 13,500

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Summary of Outstanding Shares of Common Stock	The following table summarizes outstanding shares of common stock: Year ended December 31 In thousands 2016 2015 2014 Shares outstanding at beginning of year 43,420 43,054 43,130 Shares repurchased — — (464 ) Treasury shares issued for: Restricted stock awards 108 206 162 401(k) plan — 134 116 Employee stock options exercised 22 26 110 Shares outstanding at end of year 43,550 43,420 43,054

Commitments, Contingencies an53

Commitments, Contingencies and Legal Proceedings (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Summary of Minimum Annual Payment Due on Noncancelable Operating Lease	The following table summarizes the minimum annual payments due on noncancelable operating leases and other similar contractual obligations having initial or remaining terms in excess of one year: In thousands Leases Other 2017 $ 5,298 $ 87,831 2018 3,706 23,584 2019 3,030 5,193 2020 2,472 3,115 2021 1,896 2,961 Thereafter 7,270 1,890
Schedule of Reserves	Reserves for the Site. As the result of the proposed consent decree, and assuming it is ultimately approved and stands on appeal, our assessment of the range of probable outcomes for this matter has changed. The higher end of our range of our exposure is now lower; however, the lower end of the range is higher. We increased our reserve by $40.0 million as of December 31, 2016, to reflect our analysis of the range of potential outcomes in this matter and our current estimate of the most likely scenario. Our reserve is set forth below: Year ended December 31 In thousands 2016 2015 Balance at January 1, $ 17,105 $ 16,223 Payments (4,317 ) (9,118 ) Accruals 40,000 10,000 Balance at December 31, $ 52,788 $ 17,105

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2016
Schedule of Financial and Other Information by Business Unit	The following tables set forth profitability and other information by business unit: For the year ended December 31, 2016 Composite Advanced Airlaid Specialty Other and In millions Fibers Materials Papers Unallocated Total Net sales $ 517.0 $ 244.3 $ 843.6 $ — $ 1,604.8 Energy and related sales, net — — 6.1 — 6.1 Total revenue 517.0 244.3 849.7 — 1,610.9 Cost of products sold 416.4 209.5 752.6 13.8 1,392.3 Gross profit 100.6 34.8 97.1 (13.8 ) 218.7 SG&A 46.3 8.4 55.9 80.1 190.7 Loss on dispositions of plant, equipment and timberlands, net — — — 0.2 0.2 Total operating income (loss) 54.3 26.4 41.2 (94.1 ) 27.8 Non-operating expense — — — (16.9 ) (16.9 ) Income (loss) before income taxes $ 54.3 $ 26.4 $ 41.2 $ (111.0 ) $ 10.9 Supplementary Data Plant, equipment and timberlands, net $ 235.1 $ 179.3 $ 352.9 $ 8.6 $ 775.9 Depreciation, depletion and amortization 27.8 9.0 26.3 2.7 65.8 Capital expenditures 18.8 36.8 99.0 5.6 160.2 For the year ended December 31, 2015 Composite Advanced Airlaid Specialty Other and In millions Fibers Materials Papers Unallocated Total Net sales $ 541.5 $ 244.6 $ 875.0 $ — $ 1,661.1 Energy and related sales, net — — 5.7 — 5.7 Total revenue 541.5 244.6 880.7 — 1,666.7 Cost of products sold 434.4 215.7 804.5 9.2 1,463.8 Gross profit 107.1 28.9 76.2 (9.2 ) 203.0 SG&A 45.7 7.6 43.3 31.0 127.7 Gains on dispositions of plant, equipment and timberlands, net — — — (21.1 ) (21.1 ) Total operating income (loss) 61.4 21.3 32.9 (19.1 ) 96.4 Non-operating expense — — — (17.8 ) (17.8 ) Income (loss) before income taxes $ 61.4 $ 21.3 $ 32.9 $ (36.9 ) $ 78.6 Supplementary Data Plant, equipment and timberlands, net $ 258.1 $ 153.5 $ 281.6 $ 5.7 $ 698.9 Depreciation, depletion and amortization 26.2 8.8 26.0 2.2 63.2 Capital expenditures 26.8 7.8 63.5 1.8 99.9 For the year ended December 31, 2014 Composite Advanced Airlaid Specialty Other and In millions Fibers Materials Papers Unallocated Total Net sales $ 617.9 $ 281.7 $ 902.9 $ — $ 1,802.4 Energy and related sales, net — — 7.9 — 7.9 Total revenue 617.9 281.7 910.8 — 1,810.3 Cost of products sold 498.0 247.6 821.8 7.8 1,575.2 Gross profit 119.9 34.1 89.0 (7.8 ) 235.1 SG&A 51.6 8.8 50.4 22.4 133.2 Gains on dispositions of plant, equipment and timberlands, net — — — (4.9 ) (4.9 ) Total operating income (loss) 68.3 25.3 38.6 (25.3 ) 106.8 Non-operating expense — — — (19.4 ) (19.4 ) Income (loss) before income taxes $ 68.3 $ 25.3 $ 38.6 $ (44.7 ) $ 87.4 Supplementary Data Plant, equipment and timberlands, net $ 277.8 $ 163.6 $ 250.1 $ 6.1 $ 697.6 Depreciation, depletion and amortization 29.7 9.1 29.9 1.9 70.6 Capital expenditures 23.9 7.6 32.1 2.4 66.0
Schedule of Net Sales to External Customers and Location of Net Plant, Equipment and Timberlands	Our net sales to external customers and location of net plant, equipment and timberlands are summarized below. Net sales are attributed to countries based upon origin of shipment. 2016 2015 2014 In thousands Net sales Plant, Equipment and Timberlands – Net Net sales Plant, Equipment and Timberlands – Net Net sales Plant, Equipment and Timberlands – Net United States $ 918,567 $ 391,977 $ 959,730 $ 287,447 $ 980,933 $ 256,251 Germany 427,520 220,380 444,009 232,340 529,003 257,311 United Kingdom 78,759 51,903 86,442 62,931 103,219 62,617 Canada 115,902 79,727 118,568 81,201 129,401 82,774 Other 64,049 31,911 52,335 34,945 59,859 38,655 Total $ 1,604,797 $ 775,898 $ 1,661,084 $ 698,864 $ 1,802,415 $ 697,608
Composite Fibers [Member]
Schedule of Segment Reporting Information of Revenue by Segment	Composite Fibers’ revenue composition by market consisted of the following for the years indicated: In thousands 2016 2015 2014 Food & beverage $ 258,463 $ 274,865 $ 296,304 Wallcovering 90,767 91,620 149,957 Metallized 61,059 68,397 80,839 Composite laminates 35,107 34,897 38,159 Technical specialties and other 71,558 71,689 52,592 Total $ 516,954 $ 541,468 $ 617,851
Advanced Airlaid Materials [Member]
Schedule of Segment Reporting Information of Revenue by Segment	Advanced Airlaid Materials’ revenue composition by market consisted of the following for the years indicated: In thousands 2016 2015 2014 Feminine hygiene $ 173,902 $ 182,048 $ 216,836 Specialty wipes 25,206 22,950 16,002 Adult incontinence 12,281 10,720 17,586 Home care 12,630 13,345 15,401 Other 20,243 15,526 15,848 Total $ 244,262 $ 244,589 $ 281,673
Specialty Papers [Member]
Schedule of Segment Reporting Information of Revenue by Segment	Specialty Papers’ revenue composition by market consisted of the following for the years indicated: In thousands 2016 2015 2014 Carbonless & forms $ 319,648 $ 349,831 $ 376,959 Engineered products 189,463 190,943 194,189 Envelope & converting 173,362 178,067 183,194 Book publishing 157,541 152,647 144,744 Other 3,568 3,538 3,805 Total $ 843,582 $ 875,026 $ 902,891

Condensed Consolidating Finan55

Condensed Consolidating Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Statement of Income	Condensed Consolidating Statement of Income for the year ended December 31, 2016 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net sales $ 843,582 $ 75,000 $ 755,860 $ (69,645 ) $ 1,604,797 Energy and related sales, net 6,141 — — — 6,141 Total revenues 849,723 75,000 755,860 (69,645 ) 1,610,938 Costs of products sold 763,109 70,991 627,880 (69,645 ) 1,392,335 Gross profit 86,614 4,009 127,980 — 218,603 Selling, general and administrative expenses 133,387 (156 ) 57,463 — 190,694 Loss on dispositions of plant equipment and timberlands, net 177 — 39 — 216 Operating income (loss) (46,950 ) 4,165 70,478 — 27,693 Other non-operating income (expense) Interest expense (17,436 ) (41 ) (3,060 ) 4,715 (15,822 ) Interest income 687 4,177 57 (4,715 ) 206 Equity in earnings of subsidiaries 61,007 58,347 — (119,354 ) — Other, net (2,312 ) (3,966 ) 5,007 — (1,271 ) Total other non-operating income (expense) 41,946 58,517 2,004 (119,354 ) (16,887 ) Income (loss) before income taxes (5,004 ) 62,682 72,482 (119,354 ) 10,806 Income tax provision (benefit) (26,558 ) 1,675 14,135 — (10,748 ) Net income 21,554 61,007 58,347 (119,354 ) 21,554 Other comprehensive loss (14,120 ) (25,916 ) (25,176 ) 51,092 (14,120 ) Comprehensive income $ 7,434 $ 35,091 $ 33,171 $ (68,262 ) $ 7,434 Condensed Consolidating Statement of Income for the year ended December 31, 2015 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net sales $ 875,026 $ 84,704 $ 779,380 $ (78,026 ) $ 1,661,084 Energy and related sales, net 5,664 — — — 5,664 Total revenues 880,690 84,704 779,380 (78,026 ) 1,666,748 Costs of products sold 811,329 80,455 650,025 (78,026 ) 1,463,783 Gross profit 69,361 4,249 129,355 — 202,965 Selling, general and administrative expenses 71,751 821 55,134 — 127,706 Gain on dispositions of plant equipment and timberlands, net (19,720 ) (1,183 ) (210 ) — (21,113 ) Operating income 17,330 4,611 74,431 — 96,372 Other non-operating income (expense) Interest expense (18,147 ) — (36,859 ) 37,542 (17,464 ) Interest income 673 37,127 26 (37,543 ) 283 Equity in earnings of subsidiaries 61,946 24,737 — (86,683 ) — Other, net (3,389 ) (1,471 ) 4,245 — (615 ) Total other non-operating income (expense) 41,083 60,393 (32,588 ) (86,684 ) (17,796 ) Income before income taxes 58,413 65,004 41,843 (86,684 ) 78,576 Income tax provision (benefit) (6,162 ) 2,922 17,241 — 14,001 Net income 64,575 62,082 24,602 (86,684 ) 64,575 Other comprehensive income (loss) (35,616 ) (41,010 ) 29,680 11,330 (35,616 ) Comprehensive income $ 28,959 $ 21,072 $ 54,282 $ (75,354 ) $ 28,959 Condensed Consolidating Statement of Income for the year ended December 31, 2014 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net sales $ 902,892 $ 78,077 $ 897,363 $ (75,917 ) $ 1,802,415 Energy and related sales, net 7,927 — — — 7,927 Total revenues 910,819 78,077 897,363 (75,917 ) 1,810,342 Costs of products sold 830,710 74,414 745,981 (75,917 ) 1,575,188 Gross profit 80,109 3,663 151,382 — 235,154 Selling, general and administrative expenses 67,086 1,765 64,384 — 133,235 Gain on dispositions of plant equipment and timberlands, net (3,545 ) (1,316 ) — — (4,861 ) Operating income 16,568 3,214 86,998 — 106,780 Other non-operating income (expense) Interest expense (19,105 ) — (102,571 ) 102,755 (18,921 ) Interest income 638 102,241 36 (102,756 ) 159 Equity in earnings of subsidiaries 67,590 (34,265 ) — (33,325 ) — Other, net (1,366 ) 317 414 — (635 ) Total other non-operating income (expense) 47,757 68,293 (102,121 ) (33,326 ) (19,397 ) Income (loss) before income taxes 64,325 71,507 (15,123 ) (33,326 ) 87,383 Income tax provision (benefit) (4,921 ) 3,916 19,142 — 18,137 Net income (loss) 69,246 67,591 (34,265 ) (33,326 ) 69,246 Other comprehensive income (loss) (79,513 ) (40,704 ) 28,840 11,864 (79,513 ) Comprehensive income (loss) $ (10,267 ) $ 26,887 $ (5,425 ) $ (21,462 ) $ (10,267 )
Condensed Consolidating Balance Sheet	Condensed Consolidating Balance Sheet as of December 31, 2016 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Assets Cash and cash equivalents $ 5,082 $ 1,461 $ 48,901 $ — $ 55,444 Other current assets 206,002 256,289 242,187 (265,663 ) 438,815 Plant, equipment and timberlands, net 360,521 31,455 383,922 — 775,898 Investments in subsidiaries 789,565 540,029 — (1,329,594 ) — Other assets 123,010 — 128,092 — 251,102 Total assets $ 1,484,180 $ 829,234 $ 803,102 $ (1,595,257 ) $ 1,521,259 Liabilities and Shareholders' Equity Current liabilities $ 426,628 $ 26,085 $ 135,961 $ (265,663 ) $ 323,011 Long-term debt 283,686 14,000 65,961 — 363,647 Deferred income taxes 10,221 (729 ) 45,503 — 54,995 Other long-term liabilities 109,819 313 15,648 — 125,780 Total liabilities 830,354 39,669 263,073 (265,663 ) 867,433 Shareholders’ equity 653,826 789,565 540,029 (1,329,594 ) 653,826 Total liabilities and shareholders’ equity $ 1,484,180 $ 829,234 $ 803,102 $ (1,595,257 ) $ 1,521,259 Condensed Consolidating Balance Sheet as of December 31, 2015 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Assets Cash and cash equivalents $ 59,130 $ 465 $ 45,709 $ — $ 105,304 Other current assets 199,690 238,515 239,367 (230,509 ) 447,063 Plant, equipment and timberlands, net 286,334 1,114 411,416 — 698,864 Investments in subsidiaries 737,450 507,116 — (1,244,566 ) — Other assets 106,586 — 142,599 — 249,185 Total assets $ 1,389,190 $ 747,210 $ 839,091 $ (1,475,075 ) $ 1,500,416 Liabilities and Shareholders' Equity Current liabilities $ 363,037 $ 9,725 $ 162,081 $ (230,523 ) $ 304,320 Long-term debt 247,075 — 106,221 — 353,296 Deferred income taxes 28,561 (79 ) 47,976 — 76,458 Other long-term liabilities 87,270 — 15,825 — 103,095 Total liabilities 725,943 9,646 332,103 (230,523 ) 837,169 Shareholders’ equity 663,247 737,564 506,988 (1,244,552 ) 663,247 Total liabilities and shareholders’ equity $ 1,389,190 $ 747,210 $ 839,091 $ (1,475,075 ) $ 1,500,416
Condensed Consolidating Statement of Cash Flows	Condensed Consolidating Statement of Cash Flows for the year ended December 31, 2016 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net cash provided (used) by Operating activities $ 33,109 $ 1,275 $ 81,726 $ — $ 116,110 Investing activities Expenditures for purchases of plant, equipment and timberlands (104,595 ) (30,682 ) (24,881 ) — (160,158 ) Proceeds from disposals of plant, equipment and timberlands, net 41 — 29 — 70 Repayments from intercompany loans — 15,601 — (15,601 ) — Advances of intercompany loans — (18,330 ) — 18,330 — Intercompany capital contributed (17,000 ) (500 ) — 17,500 — Other (800 ) — — — (800 ) Total investing activities (122,354 ) (33,911 ) (24,852 ) 20,229 (160,888 ) Financing activities Net long-term borrowings 36,000 14,000 (35,886 ) — 14,114 Payments of borrowing costs (136 ) — — — (136 ) Payment of dividends to shareholders (21,589 ) — — — (21,589 ) Repayments of intercompany loans — — (15,601 ) 15,601 — Borrowings of intercompany loans 18,330 — — (18,330 ) — Intercompany capital (returned) received — 17,000 500 (17,500 ) — Payment of intercompany dividend — 632 (632 ) - — Proceeds from government grants 3,582 2,000 — — 5,582 Payments related to share-based compensation awards and other (990 ) — — — (990 ) Total financing activities 35,197 33,632 (51,619 ) (20,229 ) (3,019 ) Effect of exchange rate on cash — — (2,063 ) — (2,063 ) Net increase (decrease) in cash (54,048 ) 996 3,192 — (49,860 ) Cash at the beginning of period 59,130 465 45,709 — 105,304 Cash at the end of period $ 5,082 $ 1,461 $ 48,901 $ — $ 55,444 Condensed Consolidating Statement of Cash Flows for the year ended December 31, 2015 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net cash provided (used) by Operating activities $ 34,391 $ 627 $ 98,725 $ — $ 133,743 Investing activities Expenditures for purchases of plant, equipment and timberlands (65,265 ) (109 ) (34,515 ) — (99,889 ) Proceeds from disposals of plant, equipment and timberlands, net 22,741 1,213 505 — 24,459 Repayments from intercompany loans — 57,855 — (57,855 ) — Advances of intercompany loans — (49,230 ) — 49,230 — Intercompany capital (contributed) returned 10,100 (300 ) — (9,800 ) — Acquisitions, net of cash acquired — — (224 ) — (224 ) Other (1,600 ) — — — (1,600 ) Total investing activities (34,024 ) 9,429 (34,234 ) (18,425 ) (77,254 ) Financing activities Net repayments of indebtedness — — (24,650 ) — (24,650 ) Payments of borrowing costs (1,329 ) — — — (1,329 ) Payment of dividends to shareholders (20,443 ) — — — (20,443 ) Repayments of intercompany loans (9,158 ) — (48,697 ) 57,855 — Borrowings of intercompany loans 49,230 — — (49,230 ) — Intercompany capital (returned) received — (10,100 ) 300 9,800 — Proceeds from government grants 421 — — — 421 Payments related to share-based compensation awards and other (2,166 ) — 151 — (2,015 ) Total financing activities 16,555 (10,100 ) (72,896 ) 18,425 (48,016 ) Effect of exchange rate on cash — — (3,006 ) — (3,006 ) Net decrease in cash 16,922 (44 ) (11,411 ) — 5,467 Cash at the beginning of period 42,208 509 57,120 — 99,837 Cash at the end of period $ 59,130 $ 465 $ 45,709 $ — $ 105,304 Condensed Consolidating Statement of Cash Flows for the year ended December 31, 2014 In thousands Parent Company Guarantors Non Guarantors Adjustments/ Eliminations Consolidated Net cash provided (used) by Operating activities $ 36,240 $ 4,159 $ 59,178 $ — $ 99,577 Investing activities Expenditures for plant, equipment and timberlands (34,518 ) — (31,528 ) — (66,046 ) Proceeds from disposal plant, equipment and timberlands, net 3,707 1,355 10 — 5,072 Repayments from intercompany loans — 20,840 — (20,840 ) — Advances of intercompany loans (12,671 ) (26,340 ) — 39,011 — Acquisitions, net of cash acquired — — (8,015 ) — (8,015 ) Other (600 ) — — — (600 ) Total investing activities (44,082 ) (4,145 ) (39,533 ) 18,171 (69,589 ) Financing activities Net proceeds from indebtedness — — (18,128 ) — (18,128 ) Payments of note offering costs — — — — — Payment of dividends to shareholders (18,696 ) — — — (18,696 ) Repurchases of common stock (12,180 ) — — — (12,180 ) Repayments of intercompany loans — — (20,840 ) 20,840 — Borrowings of intercompany loans 26,340 — 12,671 (39,011 ) — Payments related to share-based compensation awards and other (1,630 ) — (247 ) — (1,877 ) Total financing activities (6,166 ) — (26,544 ) (18,171 ) (50,881 ) Effect of exchange rate on cash — — (2,152 ) — (2,152 ) Net increase (decrease) in cash (14,008 ) 14 (9,051 ) — (23,045 ) Cash at the beginning of period 56,216 495 66,171 — 122,882 Cash at the end of period $ 42,208 $ 509 $ 57,120 $ — $ 99,837

Quarterly Results (Tables)

Quarterly Results (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Schedule of Net Income (Loss) and Earnings (Loss) Per Share	Earnings (loss) In thousands, Net sales Gross profit Net income (loss) per share except per share 2016 2015 2016 2015 2016 2015 2016 2015 First $ 402,218 $ 417,469 $ 57,843 $ 52,108 $ 16,168 $ 13,925 $ 0.37 $ 0.32 Second 406,413 410,803 42,723 32,833 1,965 2,848 0.04 0.06 Third 405,301 419,960 61,170 59,908 19,601 13,504 0.44 0.31 Fourth 390,865 412,852 56,867 58,116 (16,180 ) 34,298 (0.37 ) 0.78

Accounting Policies - Schedule

Accounting Policies - Schedule of Range of Estimated Service Lives (Detail)	12 Months Ended
	Dec. 31, 2016
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Range of estimated service lives	15 years
Minimum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Range of estimated service lives	5 years
Minimum [Member] | Other [Member]
Property, Plant and Equipment [Line Items]
Range of estimated service lives	3 years
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Range of estimated service lives	45 years
Maximum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Range of estimated service lives	40 years
Maximum [Member] | Other [Member]
Property, Plant and Equipment [Line Items]
Range of estimated service lives	25 years

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands	Oct. 01, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Revenue		$ 1,610,938	$ 1,666,748	$ 1,810,342
Spezialpapierfabrik Oberschmitten GmbH [Member]
Business Acquisition [Line Items]
Date of acquisition		Oct. 1, 2014
Payment made for acquisition	$ 8,000
Revenue				$ 33,000

Energy and Related Sales, Net -

Energy and Related Sales, Net - Summary of Energy and Related Sales Net (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Energy And Related Sales Net [Abstract]
Energy sales	$ 3,613	$ 5,315	$ 11,886
Costs to produce	(3,972)	(4,428)	(6,204)
Net	(359)	887	5,682
Renewable energy credits	6,500	4,777	2,245
Total	$ 6,141	$ 5,664	$ 7,927

Gain on Dispositions of Plant60

Gain on Dispositions of Plant, Equipment and Timberlands - Summary for Sale of Timberlands and Other Assets (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)a	Dec. 31, 2014USD ($)a
Property, Plant and Equipment [Line Items]
Proceeds	$ 70	$ 24,459	$ 5,072
Gain (loss)	(216)	21,113	4,861
Other [Member]
Property, Plant and Equipment [Line Items]
Proceeds	70	542	10
Gain (loss)	$ (216)	$ 246	$ 6
Timberlands [Member]
Property, Plant and Equipment [Line Items]
Acres | a		15,628	2,753
Proceeds		$ 23,917	$ 5,062
Gain (loss)		$ 20,867	$ 4,855

Asset Impairment Charges - Addi

Asset Impairment Charges - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Indefinite-lived Intangible Assets [Line Items]
Non-cash asset impairment charge		$ 1,200,000	$ 3,262,000
Dresden Papier GmbH [Member] | Tradename [Member]
Indefinite-lived Intangible Assets [Line Items]
Non-cash asset impairment charge	$ 0	$ 1,200,000	$ 3,300,000

Earnings Per Share - Details of

Earnings Per Share - Details of Basic and Diluted Earnings Per Share (EPS) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Net income	$ 21,554	$ 64,575	$ 69,246
Weighted average common shares outstanding used in basic EPS	43,558	43,397	43,201
Common shares issuable upon exercise of dilutive stock options and PSAs / RSUs	571	545	865
Weighted average common shares outstanding and common share equivalents used in diluted EPS	44,129	43,942	44,066
Earnings per share
Basic	$ 0.49	$ 1.49	$ 1.60
Diluted	$ 0.49	$ 1.47	$ 1.57

Earnings Per Share - Number of

Earnings Per Share - Number of Potential Common Shares that have been Excluded from Computation of Diluted Earnings Per Share for Indicated Period Due to Their Anti-Dilutive Nature (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Potential common shares	596	678	277

Accumulated Other Comprehensi64

Accumulated Other Comprehensive Income - Schedule of Changes in Accumulated Other Comprehensive Income (Losses) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (190,486)	$ (154,870)	$ (75,357)
Other comprehensive income before reclassifications (net of tax)	(28,408)	(43,926)	(89,608)
Amounts reclassified from accumulated other comprehensive income (net of tax)	14,288	8,310	10,095
Other comprehensive loss	(14,120)	(35,616)	(79,513)
Ending Balance	(204,606)	(190,486)	(154,870)
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(73,041)	(34,224)	15,141
Other comprehensive income before reclassifications (net of tax)	(27,407)	(38,817)	(49,365)
Other comprehensive loss	(27,407)	(38,817)	(49,365)
Ending Balance	(100,448)	(73,041)	(34,224)
Unrealized Gain (Loss) on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(225)	2,356	(941)
Other comprehensive income before reclassifications (net of tax)	1,247	1,620	2,826
Amounts reclassified from accumulated other comprehensive income (net of tax)	478	(4,201)	471
Other comprehensive loss	1,725	(2,581)	3,297
Ending Balance	1,500	(225)	2,356
Change in Pensions [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(120,714)	(120,260)	(89,547)
Other comprehensive income before reclassifications (net of tax)	(4,334)	(12,995)	(40,266)
Amounts reclassified from accumulated other comprehensive income (net of tax)	14,392	12,541	9,553
Other comprehensive loss	10,058	(454)	(30,713)
Ending Balance	(110,656)	(120,714)	(120,260)
Change in Other Postretirement Defined Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	3,494	(2,742)	(10)
Other comprehensive income before reclassifications (net of tax)	2,086	6,266	(2,803)
Amounts reclassified from accumulated other comprehensive income (net of tax)	(582)	(30)	71
Other comprehensive loss	1,504	6,236	(2,732)
Ending Balance	$ 4,998	$ 3,494	$ (2,742)

Accumulated Other Comprehensi65

Accumulated Other Comprehensive Income - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Losses) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	$ (1,392,335)	$ (1,463,783)	$ (1,575,188)
Selling, general and administrative	(190,694)	(127,706)	(133,235)
Income tax provision	10,748	(14,001)	(18,137)
Net income	21,554	64,575	69,246
Reclassifications Out of Accumulated Other Comprehensive Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Net income	14,288	8,310	10,095
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs and Expenses	23,175	20,195	15,384
Income tax provision	(8,783)	(7,654)	(5,831)
Net income	14,392	12,541	9,553
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member] | Prior Service Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	2,026	2,300	2,503
Selling, general and administrative	672	762	830
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member] | Actuarial Losses [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	9,798	12,745	8,965
Selling, general and administrative	3,373	4,388	3,086
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Pension Benefits [Member] | Settlement Recognition [Member]
Defined Benefit Plan Disclosure [Line Items]
Selling, general and administrative	7,306
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Amortization of Deferred Benefit Other Plan Items [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs and Expenses	(937)	(49)	114
Income tax provision	355	19	(43)
Net income	(582)	(30)	71
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Amortization of Deferred Benefit Other Plan Items [Member] | Prior Service Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	(150)	(230)	(237)
Selling, general and administrative	(32)	(50)	(51)
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Amortization of Deferred Benefit Other Plan Items [Member] | Actuarial Losses [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	(621)	190	331
Selling, general and administrative	(134)	41	71
Reclassifications Out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member] | (Gains) Losses on Cash Flow Hedges [Member]
Defined Benefit Plan Disclosure [Line Items]
Costs of products sold	551	(5,752)	655
Income tax provision	(73)	1,551	(184)
Net income	$ 478	$ (4,201)	$ 471

Income Taxes - Schedule of Prov

Income Taxes - Schedule of Provision for Income Taxes from Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current taxes
Federal	$ 2,216	$ 5,047	$ 3,291
State	(1,112)	(1,680)	238
Foreign	10,203	12,536	24,027
Total current taxes	11,307	15,903	27,556
Deferred taxes and other
Federal	(24,411)	(7,287)	(3,975)
State	(1,723)	564	(147)
Foreign	4,079	4,821	(5,297)
Total deferred taxes and other	(22,055)	(1,902)	(9,419)
Income tax provision (benefit)	$ (10,748)	$ 14,001	$ 18,137

Income Taxes - Schedule of Dome

Income Taxes - Schedule of Domestic and Foreign Components of Pretax Income (Loss) from Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
United States	$ (63,315)	$ 2,382	$ 4,637
Foreign	74,121	76,194	82,746
Income before income taxes	$ 10,806	$ 78,576	$ 87,383

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Contingency [Line Items]
Federal income tax rate	35.00%	35.00%	35.00%
Valuation allowances	$ 4,066,000	$ 3,773,000
Research and development, tax credit	1,100,000	1,500,000	$ 1,800,000
Investment tax credits	2,200,000
Unremitted earnings, reinvested	399,900,000	338,600,000
Deferred tax liability	0
Gross unrecognized tax benefits	14,200,000	$ 12,200,000	$ 14,900,000	$ 14,900,000
Unrecognized tax benefits that would impact effective tax rate	11,300,000
Minimum [Member]
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits balance may decrease within the next twelve months	0
Maximum [Member]
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits balance may decrease within the next twelve months	900,000
United States - Federal [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 15,500,000
Net operating loss carryforwards expiration year	2,036
Tax credit carryforwards	$ 2,900,000
Tax credit carryforwards expiration year	2,035
United States - State [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 77,800,000
Tax credit carryforwards	$ 200,000
Tax credit carryforwards expiration year	2,017
United States - State [Member] | Minimum [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards expiration year	2,017
United States - State [Member] | Maximum [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards expiration year	2,036
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 4,800,000
Net operating loss carryforwards expiration year	2,019
Tax credit carryforwards	$ 800,000
Tax credit carryforwards expiration year	2,030

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of Federal Statutory Rate to Company's Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Federal income tax provision at statutory rate	35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefit	(15.00%)	0.30%	0.20%
Foreign income tax rate differential	(96.30%)	(8.60%)	(5.00%)
Rate changes due to enacted legislation	(6.70%)		(2.20%)
Tax effect of credits	(30.30%)	(1.90%)	(2.00%)
Provision for (resolution of ) tax matters	2.80%	(2.10%)	1.30%
Permanent differences on non-U.S. earnings		(4.40%)	(2.80%)
Valuation allowance	7.10%	0.40%	(2.70%)
Other	3.90%	(0.90%)	(1.00%)
Actual tax rate	(99.50%)	17.80%	20.80%

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Reserves	$ 4,625	$ 4,720
Environmental	20,868	7,211
Compensation	8,950	8,250
Post-retirement benefits	18,318	19,476
Research & development expenses	6,949	8,925
Inventories	1,464	3,445
Other	993	605
Tax carryforwards	14,438	8,413
Deferred tax assets	76,605	61,045
Valuation allowance	(4,066)	(3,773)
Net deferred tax assets	72,539	57,272
Property	(81,837)	(84,009)
Intangible assets	(16,561)	(17,748)
Pension	(29,041)	(26,885)
Deferred tax liabilities	(127,439)	(128,642)
Net deferred tax liabilities	$ (54,900)	$ (71,370)

Income Taxes - Schedule of Non-

Income Taxes - Schedule of Non-Current Deferred Tax Assets and Liabilities Balance Sheet Captions (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Other assets	$ 95	$ 5,088
Deferred income taxes	$ 54,995	$ 76,458

Income Taxes - Schedule of Unre

Income Taxes - Schedule of Unrecognized Tax Benefit (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Beginning balance	$ 12.2	$ 14.9	$ 14.9
Increases in tax positions for prior years	2		0.7
Decreases in tax positions for prior years	(1.4)	(4.3)	(0.5)
Acquisition related:
Purchase Accounting			0.3
Increases in tax positions for current year	1.9	1.9	3.4
Settlements	(0.2)		(1.3)
Lapse in statutes of limitation	(0.3)	(0.3)	(2.6)
Ending balance	$ 14.2	$ 12.2	$ 14.9

Income Taxes - Summary of Tax Y

Income Taxes - Summary of Tax Years that Remain Subject to Examination by Major Jurisdiction (Detail)	12 Months Ended
	Dec. 31, 2016
United States - State [Member] | United States [Member]
Income Tax Examination [Line Items]
Examination in progress	2,014
Minimum [Member] | United States - Federal [Member] | United States [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,013
Minimum [Member] | United States - State [Member] | United States [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,012
Minimum [Member] | Foreign Tax Authority [Member] | Canada [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,010
Minimum [Member] | Foreign Tax Authority [Member] | Germany [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,012
Examination in progress	2,011
Minimum [Member] | Foreign Tax Authority [Member] | France [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,014
Examination in progress	2,011
Minimum [Member] | Foreign Tax Authority [Member] | United Kingdom [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,015
Minimum [Member] | Foreign Tax Authority [Member] | Philippines [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,015
Examination in progress	2,013
Maximum [Member] | United States - Federal [Member] | United States [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,016
Maximum [Member] | United States - State [Member] | United States [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,016
Maximum [Member] | Foreign Tax Authority [Member] | Canada [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,016
Maximum [Member] | Foreign Tax Authority [Member] | Germany [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,016
Examination in progress	2,013
Maximum [Member] | Foreign Tax Authority [Member] | France [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,016
Examination in progress	2,012
Maximum [Member] | Foreign Tax Authority [Member] | United Kingdom [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,016
Maximum [Member] | Foreign Tax Authority [Member] | Philippines [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2,016
Examination in progress	2,014

Income Taxes - Summary of Infor

Income Taxes - Summary of Information Related to Interest and Penalties on Uncertain Tax Positions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Accrued interest payable	$ 0.5	$ 0.6	$ 0.6
Interest expense (income)	$ (0.1)

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restricted Stock Units (RSU) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
The vesting graded scale	The vesting of RSUs is generally based on the passage of time, generally on a graded scale over a three, four, and five-year period.
Performance Share Awards (PSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants under performance share awards	199,693	105,017	101,743
Number of award issued to participants	0
Weighted average grant date fair value	$ 18.08	$ 24.62	$ 28.89
Restricted Stock Units (RSU) and Performance Share Awards (PSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants under performance share awards	302,722	164,666	178,882
Number of award issued to participants	149,975	286,902	244,375
Unrecognized compensation expense for outstanding RSUs and PSAs	$ 5.4
The weighted average remaining period over which the expense will be recognized	2 years 1 month 6 days
Stock Only Stock Appreciation Rights (SOSARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of stock	3 years
Intrinsic value of SOSARs vested and expected to vest	$ 18.9
The remaining weighted average contractual life of outstanding SOSARs	5 years 2 months 12 days
Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for future issuance	611,699

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of RSU and PSA Activity (Detail) - Restricted Stock Units (RSU) and Performance Share Awards (PSAs) [Member] - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance	674,523	888,942	1,001,814
Granted	302,722	164,666	178,882
Forfeited	(148,232)	(92,183)	(47,379)
Shares delivered	(149,975)	(286,902)	(244,375)
Ending Balance	679,038	674,523	888,942

Stock-Based Compensation - Comp

Stock-Based Compensation - Compensation Expense for Periods (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restricted Stock Units (RSU) and Performance Share Awards (PSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 3,154	$ 1,758	$ 2,652

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Information Related to Outstanding SOSARS (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised	(22,000)	(26,000)	(110,000)
Stock Only Stock Appreciation Rights (SOSARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Outstanding	2,199,742	1,864,707	1,977,133
Granted	743,925	423,590	281,881
Exercised	(61,190)	(70,347)	(364,465)
Canceled / forfeited	(145,861)	(18,208)	(29,842)
Ending Balance, Outstanding	2,736,616	2,199,742	1,864,707
Exercisable at December 31	1,740,591	1,504,599	1,285,998
Vested and expected to vest	2,725,611	2,178,708	1,754,295
Beginning Balance, Weighted Average Exercise Price, Outstanding	$ 17.82	$ 16.20	$ 13.91
Weighted Average Exercise Price, Granted	17.54	24.62	29.78
Weighted Average Exercise Price, Exercised	10.70	14.12	13.99
Weighted Average Exercise Price, Canceled / forfeited	22.80	25.41	19.36
Ending Balance, Weighted Average Exercise Price, Outstanding	17.64	17.82	16.20
Weighted Average Exercise Price, Exercisable at December 31,	16.19	14.48	12.94
Weighted average grant date fair value per share	$ 4.07	$ 7.46	$ 9.81
Aggregate grant date fair value	$ 3,013	$ 3,134	$ 2,764
Black-Scholes assumptions
Dividend yield	2.85%	1.94%	1.48%
Risk free rate of return	1.34%	1.64%	1.74%
Volatility	31.97%	36.38%	37.59%
Expected life	6 years	6 years	6 years
Compensation expense	$ 2,735	$ 2,645	$ 2,086

Retirement Plans and Other Po79

Retirement Plans and Other Post-Retirement Benefits - Schedule of Change in Benefit Obligation and Plan Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Change in Plan Assets
Fair value of plan assets at beginning of year	$ 594.9
Fair value of plan assets at end of year	610.7	$ 594.9
Pension Benefits [Member]
Change in Benefit Obligation
Balance at beginning of year	541.9	577.6
Service cost	10.5	11.6	$ 10.4
Interest cost	24.5	23.3	24.8
Plan amendments	5.5
Actuarial (gain)/loss	17	(34.8)
Benefits paid	(22.9)	(34.8)
One-time settlement	(24.2)
Effect of currency rate changes	(0.3)	(1)
Balance at end of year	552	541.9	577.6
Change in Plan Assets
Fair value of plan assets at beginning of year	594.9	638
Actual return on plan assets	60.8	(10.3)
Total contributions	2.1	2
Benefits paid	(22.9)	(34.8)
One-time settlement	(24.2)
Fair value of plan assets at end of year	610.7	594.9	638
Funded status at end of year	58.7	53
Other Benefits [Member]
Change in Benefit Obligation
Balance at beginning of year	51	59.8
Service cost	1.1	1.4	1.5
Interest cost	2	2	2.5
Participant contributions	1	1.2
Actuarial (gain)/loss	(3.4)	(10.1)
Benefits paid	(3.8)	(3.3)
Balance at end of year	47.9	51	$ 59.8
Change in Plan Assets
Total contributions	3.8	3.3
Benefits paid	(3.8)	(3.3)
Funded status at end of year	$ (47.9)	$ (51)

Retirement Plans and Other Po80

Retirement Plans and Other Post-Retirement Benefits - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation for all defined benefit pension plans	$ 537.6	$ 526.7
Defined contribution plans Employees contribution	50.00%
Expense associated with Defined Contribution Plans	$ 2	$ 2.1	$ 2
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension settlement charge	7.3
Pension settlement charge settled	$ 24.2
Discount rates	4.43%	4.65%
Prior service cost as a component of net periodic benefit cost from accumulated other comprehensive income (loss)	$ 2.8
Actuarial net (gain) loss as a component of net periodic benefit cost from accumulated other comprehensive income (loss)	$ 0.2
Pension Benefits [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rates	1.90%
Pension Benefits [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rates	4.55%
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rates	4.18%	4.38%
Prior service cost as a component of net periodic benefit cost from accumulated other comprehensive income (loss)		$ 11.3
Actuarial net (gain) loss as a component of net periodic benefit cost from accumulated other comprehensive income (loss)		$ 0.6
Other Benefits [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rates	4.02%
Other Benefits [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rates	4.21%

Retirement Plans and Other Po81

Retirement Plans and Other Post-Retirement Benefits - Summary of Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	$ 58.7	$ 53
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	(47.9)	(50.9)
Other Assets [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	96.7	89.1
Current Liabilities [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	(2)	(2.1)
Current Liabilities [Member] | Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	(3.2)	(3.2)
Other Long-Term Liabilities [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	(36)	(34)
Other Long-Term Liabilities [Member] | Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized	$ (44.7)	$ (47.7)

Retirement Plans and Other Po82

Retirement Plans and Other Post-Retirement Benefits - Components of Amounts Recognized as Accumulated Other Comprehensive Income on Pre-Tax Basis (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost/(credit)	$ 14.8	$ 12
Net actuarial loss	165.9	185
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost/(credit)	(0.6)	(0.8)
Net actuarial loss	$ (7.4)	$ (4.8)

Retirement Plans and Other Po83

Retirement Plans and Other Post-Retirement Benefits - Weighted-Average Assumptions Used in Computing Benefit Obligations (Detail)	Dec. 31, 2016	Dec. 31, 2015
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate - benefit obligation	4.43%	4.65%
Future compensation growth rate	3.00%	3.50%
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate - benefit obligation	4.18%	4.38%

Retirement Plans and Other Po84

Retirement Plans and Other Post-Retirement Benefits - Information for Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract]
Projected benefit obligation	$ 37.9	$ 36.1
Accumulated benefit obligation	$ 34.6	$ 33.1

Retirement Plans and Other Po85

Retirement Plans and Other Post-Retirement Benefits - Schedule of Net Periodic Benefit Cost of Pension and Other Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 10.5	$ 11.6	$ 10.4
Interest cost	24.5	23.3	24.8
Expected return on plan assets	(45.4)	(46)	(43.9)
Amortization of prior service cost/(credit)	2.7	3.1	3.3
Amortization of actuarial loss	13.2	17.1	12.1
One-time settlement charge	7.3
Total net periodic benefit cost	12.8	9.1	6.7
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1.1	1.4	1.5
Interest cost	2	2	2.5
Amortization of prior service cost/(credit)	(0.2)	(0.3)	(0.3)
Amortization of actuarial loss	(0.8)	0.2	0.4
Total net periodic benefit cost	$ 2.1	$ 3.3	$ 4.1

Retirement Plans and Other Po86

Retirement Plans and Other Post-Retirement Benefits - Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss	$ 1.4	$ 21.5
Plan amendments	5.5
Recognized prior service cost	(2.7)	(3.1)	$ (3.3)
Recognized actuarial losses	(20.5)	(17.1)
Total recognized in other comprehensive (income) loss	(16.3)	1.3
Total recognized in net periodic benefit cost and other comprehensive (income) loss	(3.5)	10.4
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss	(3.4)	(10.1)
Recognized prior service cost	0.2	0.3	$ 0.3
Recognized actuarial losses	0.8	(0.2)
Total recognized in other comprehensive (income) loss	(2.4)	(10)
Total recognized in net periodic benefit cost and other comprehensive (income) loss	$ (0.3)	$ (6.7)

Retirement Plans and Other Po87

Retirement Plans and Other Post-Retirement Benefits - Schedule of Defined Benefit Plan Weighted-Average Assumptions Used in Computing Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate - benefit expense	4.65%	4.21%	5.20%
Future compensation growth rate	3.50%	4.00%	4.00%
Expected long-term rate of return on plan assets	7.75%	8.00%	8.00%
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate - benefit expense	4.38%	3.89%	4.52%

Retirement Plans and Other Po88

Retirement Plans and Other Post-Retirement Benefits - Schedule of Health Care Cost Trend Rates Used in Calculating Benefit Obligations (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Assumed Health Care Cost Trend Rates [Abstract]
Health care cost trend rate assumed for next year	6.50%	6.80%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	4.50%	4.50%
Year that the rate reaches the ultimate rate	2,037	2,037

Retirement Plans and Other Po89

Retirement Plans and Other Post-Retirement Benefits - Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Defined Benefit Plan Effect Of One Percentage Point Change In Assumed Health Care Cost Trend Rates [Abstract]
Post-retirement benefit obligation, Increase	$ 3.8
Total of service and interest cost components, Increase	0.3
Post-retirement benefit obligation, Decrease	(3.4)
Total of service and interest cost components, Decrease	$ (0.3)

Retirement Plans and Other Po90

Retirement Plans and Other Post-Retirement Benefits - Schedule of Targeted Range of Investment Allocations of Plan Assets (Detail)	12 Months Ended
	Dec. 31, 2016
Domestic Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for the plan assets, minimum	35.00%
Target allocation for the plan assets, maximum	45.00%
International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for the plan assets, minimum	8.00%
Target allocation for the plan assets, maximum	14.00%
Real Estate Investment Trusts (REIT) [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for the plan assets, minimum	2.00%
Target allocation for the plan assets, maximum	6.00%
Fixed Income, Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for the plan assets, minimum	55.00%
Target allocation for the plan assets, maximum	35.00%

Retirement Plans and Other Po91

Retirement Plans and Other Post-Retirement Benefits - Schedule of Fair Value of Benefit Plan Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 610.7	$ 594.9
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	153.2	233.5
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	457.5	361.4
Large Cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	201.9	175.1
Large Cap [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.1	58.4
Large Cap [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	194.8	116.7
Small and Mid Cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	50.9	68.7
Small and Mid Cap [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	50.9	68.7
International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	79.5	79.8
International Equity [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	38.8	42.2
International Equity [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40.7	37.6
Real Estate Investment Trusts (REIT) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27.9	31.9
Real Estate Investment Trusts (REIT) [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27.9	31.9
Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	237.7	222.4
Fixed Income [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	28.5	32.3
Fixed Income [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	209.2	190.1
Cash and Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12.8	17
Cash and Equivalents [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 12.8	$ 17

Retirement Plans and Other Po92

Retirement Plans and Other Post-Retirement Benefits - Benefit Payments Expected to be Made under Non-Qualified Pension Plans and Other Benefit Plans (Detail) $ in Thousands	Dec. 31, 2016USD ($)
Nonqualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit payments expected	$ 1,991
Other Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit payments expected	$ 3,212

Retirement Plans and Other Po93

Retirement Plans and Other Post-Retirement Benefits - Summary of Benefit Expected to be Paid Out (Detail) $ in Thousands	Dec. 31, 2016USD ($)
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2,017	$ 36,885
2,018	37,033
2,019	36,520
2,020	36,871
2,021	36,871
2022 through 2026	184,679
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2,017	3,212
2,018	3,548
2,019	4,013
2,020	4,389
2,021	4,488
2022 through 2026	$ 21,009

Inventories - Inventories, Net

Inventories - Inventories, Net of Reserves (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 66,359	$ 60,098
In-process and finished	112,507	115,874
Supplies	70,803	71,242
Total	$ 249,669	$ 247,214

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventories using first-in, first-out method	$ 21.3	$ 28.2

Plant, Equipment and Timberla96

Plant, Equipment and Timberlands - Summary of Plant, Equipment and Timberlands (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ (1,036,825)	$ (1,009,331)
Subtotal	633,831	636,429
Construction in progress	137,665	58,657
Asset retirement obligation, net		579
Timberlands, less depletion	4,402	3,199
Total	775,898	698,864	$ 697,608
Land and Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	192,877	205,338
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,335,669	1,305,067
Furniture, Fixtures, and Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 142,110	$ 135,355

Plant, Equipment and Timberla97

Plant, Equipment and Timberlands - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Accrued capital expenditures	$ 24.3	$ 13.4

Goodwill and Intangible Asset98

Goodwill and Intangible Assets - Goodwill and Other Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Goodwill – Composite Fibers	$ 73,094	$ 76,056
Total intangibles	82,549	85,858
Accumulated amortization	(26,290)	(22,801)
Net intangibles	56,259	63,057
Specialty Papers [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles	6,155	6,155
Composite Fibers [Member] | Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles	4,195	4,332
Composite Fibers [Member] | Technology and Related [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles	35,874	37,625
Composite Fibers [Member] | Customer Relationships and Related [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles	32,310	33,618
Advanced Airlaid Materials [Member] | Technology and Related [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles	1,377	1,403
Advanced Airlaid Materials [Member] | Customer Relationships and Related [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles	$ 2,638	$ 2,725

Goodwill and Intangible Asset99

Goodwill and Intangible Assets - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	13 years 1 month 6 days
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	10 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	14 years
Technology and Related [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	14 years
Technology and Related [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	20 years

Goodwill and Intangible Asse100

Goodwill and Intangible Assets - Summary of Amortization of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]
Aggregate amortization expense:	$ 4,852	$ 5,340	$ 6,136
2,017	4,464
2,018	4,464
2,019	4,464
2,020	4,336
2,021	$ 3,973

Other Long-Term Assets - Summar

Other Long-Term Assets - Summary of Other Long-Term Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Assets Noncurrent [Abstract]
Pension	$ 96,699	$ 89,093
Other	25,050	20,979
Total	$ 121,749	$ 110,072

Other Current Liabilities - Sum

Other Current Liabilities - Summary of Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities Current [Abstract]
Accrued payroll and benefits	$ 48,306	$ 35,079
Other accrued compensation and retirement benefits	6,828	6,866
Income taxes payable	211	2,921
Accrued rebates	14,329	18,248
Other accrued expenses	49,576	43,330
Total	$ 119,250	$ 106,444

Long-Term Debt - Summary of Lon

Long-Term Debt - Summary of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total long-term debt	$ 375,161	$ 363,870
Less current portion	(8,961)	(7,366)
Unamortized deferred issuance costs	(2,553)	(3,208)
Long-term debt, net of current portion	363,647	353,296
5.375% Notes, Due Oct. 2020 [Member]
Debt Instrument [Line Items]
Total long-term debt	250,000	250,000
Long-term debt, net of current portion	250,000	250,000
2.40% Term Loan, Due Jun. 2022 [Member]
Debt Instrument [Line Items]
Total long-term debt	8,282	10,109
2.05% Term Loan, Due Mar. 2023 [Member]
Debt Instrument [Line Items]
Total long-term debt	35,163	42,130
1.30% Term Loan, Due Jun. 2023 [Member]
Debt Instrument [Line Items]
Total long-term debt	9,788
1.55% Term Loan, Due Sep. 2025 [Member]
Debt Instrument [Line Items]
Total long-term debt	10,333	2,839
Revolving Credit Facility, Due Mar. 2020 [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 61,595	$ 58,792

Long-Term Debt - Summary of 104

Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
5.375% Notes, Due Oct. 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, maturity date	Oct. 31, 2020
Interest rate on debt	5.375%	5.375%
2.40% Term Loan, Due Jun. 2022 [Member]
Debt Instrument [Line Items]
Long-term debt, maturity date	Jun. 30, 2022
Interest rate on debt	2.40%	2.40%
2.05% Term Loan, Due Mar. 2023 [Member]
Debt Instrument [Line Items]
Long-term debt, maturity date	Mar. 31, 2023
Interest rate on debt	2.05%	2.05%
1.30% Term Loan, Due Jun. 2023 [Member]
Debt Instrument [Line Items]
Long-term debt, maturity date	Jun. 30, 2023
Interest rate on debt	1.30%	1.30%
1.55% Term Loan, Due Sep. 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, maturity date	Sep. 30, 2025
Interest rate on debt	1.55%	1.55%
Revolving Credit Facility, Due Mar. 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, maturity date	Mar. 31, 2020

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Mar. 12, 2015	Oct. 03, 2012
Debt Instrument [Line Items]
Debt instrument covenant compliance leverage ratio, threshold	3.5
Debt instrument covenant compliance leverage ratio, actual	2.2
Amortization expense related to deferred debt issuance costs	$ 1,200,000
Other Assets [Member]
Debt Instrument [Line Items]
Unamortized deferred debt issuance costs	$ 4,200,000
5.375% Notes [Member]
Debt Instrument [Line Items]
Long-term debt, maturity date	Oct. 15, 2020
Aggregate principal amount				$ 250,000,000
Interest rate on debt	5.375%			5.375%
Frequency of interest payable	Semiannually
Debt instrument redemption	The 5.375% Notes are redeemable, in whole or in part, at any time on or after October 15, 2016 at the redemption prices specified in the applicable Indenture.
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 400,000,000
Long-term debt, maturity date	Mar. 12, 2020
Federal fund rate spread	1.00%
Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Federal fund rate spread	0.125%
Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Federal fund rate spread	1.00%
Revolving Credit Facility [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Federal fund rate spread	0.50%
Revolving Credit Facility [Member] | Daily Euro Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Federal fund rate spread	1.125%
Revolving Credit Facility [Member] | Daily Euro Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Federal fund rate spread	2.00%
Letters of Credit [Member]
Debt Instrument [Line Items]
Letters of credit issued	$ 5,100,000	$ 5,300,000
Letters of credit outstanding	$ 0

Long-Term Debt - Summary of Deb

Long-Term Debt - Summary of Debts Borrowed by Subsidiary (Detail) - IKB Deutsche Industriebank AG Borrowing Agreements [Member] - Glatfelter Gernsbach GmbH and Co KG [Member] - IKB Deutsche Industriebank AG Member - EUR (€) € in Thousands	May 04, 2016	Apr. 26, 2016	Oct. 10, 2015	Sep. 04, 2014	Apr. 11, 2013
Debt Instrument [Line Items]
Original Principal	€ 7,195	€ 10,000	€ 2,608	€ 10,000	€ 42,700
Interest Rate	1.55%	1.30%	1.55%	2.40%	2.05%
Maturity	Sep. 30, 2025	Jun. 30, 2023	Sep. 30, 2025	Jun. 30, 2022	Mar. 31, 2023

Long-Term Debt - Amortization o

Long-Term Debt - Amortization of Term Loan Agreements Together with Maturities of Other Long-term Debt (Detail) $ in Thousands	Dec. 31, 2016USD ($)
Maturities Of Long Term Debt [Abstract]
2,017	$ 8,961
2,018	9,930
2,019	9,930
2,020	321,525
2,021	9,930
Thereafter	$ 14,885

Fair Value of Financial Inst108

Fair Value of Financial Instruments - Carrying Value and Fair Value of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	$ 375,161	$ 363,870
Fair Value	384,268	365,675
Revolving Credit Facility Due Mar. 2020 And Nov. 2016 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	61,595	58,792
Fair Value	61,595	58,792
5.375% Notes, Due Oct. 2020 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	250,000	250,000
Fair Value	256,563	250,938
2.40% Term Loan, Due Jun. 2022 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	8,282	10,109
Fair Value	8,877	10,535
2.05% Term Loan, Due Mar. 2023 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	35,163	42,130
Fair Value	37,089	42,886
1.30% Term Loan, Due Jun. 2023 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	9,788
Fair Value	10,062
1.55% Term Loan, Due Sep. 2025 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	10,333	2,839
Fair Value	$ 10,082	$ 2,524

Fair Value of Financial Inst109

Fair Value of Financial Instruments - Carrying Value and Fair Value of Long-Term Debt (Parenthetical) (Detail)	Dec. 31, 2016	Dec. 31, 2015
2.40% Term Loan, Due Jun. 2022 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percent on aggregate principal amount of outstanding	2.40%	2.40%
2.05% Term Loan, Due Mar. 2023 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percent on aggregate principal amount of outstanding	2.05%	2.05%
1.30% Term Loan, Due Jun. 2023 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percent on aggregate principal amount of outstanding	1.30%	1.30%
1.55% Term Loan, Due Sep. 2025 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percent on aggregate principal amount of outstanding	1.55%	1.55%

Fair Value of Financial Inst110

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount of fixed rate debt	$ 363,647	$ 353,296
5.375% Notes, Due Oct. 2020 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount of fixed rate debt	$ 250,000	$ 250,000
Interest rate on debt	5.375%	5.375%

Financial Derivatives and He111

Financial Derivatives and Hedging Activities - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016
Maximum [Member] | Fair Value, Measurements [Member]
Derivative [Line Items]
Accumulated other comprehensive income realization period	18 months
Minimum [Member] | Fair Value, Measurements [Member]
Derivative [Line Items]
Accumulated other comprehensive income realization period	12 months
Designated as Hedging [Member] | Foreign Exchange [Member]
Derivative [Line Items]
Maturities of foreign currency derivative contracts	19 months
Designated as Hedging [Member] | Cash Flow Hedges [Member] | Maximum [Member]
Derivative [Line Items]
Period of production costs expected to be incurred	19 months
Not Designated as Hedging [Member]
Derivative [Line Items]
Maturities of foreign currency derivative contracts	1 month

Financial Derivatives and He112

Financial Derivatives and Hedging Activities - Outstanding Derivatives Used to Hedge Foreign Exchange Risks (Detail)	Dec. 31, 2016USD ($)	Dec. 31, 2016EUR (€)	Dec. 31, 2016PHP	Dec. 31, 2016CAD	Dec. 31, 2016GBP (£)	Dec. 31, 2015USD ($)	Dec. 31, 2015EUR (€)	Dec. 31, 2015PHP	Dec. 31, 2015CAD	Dec. 31, 2015GBP (£)
Cash Flow Hedges [Member] | Euro / British Pound [Member] | Designated as Hedging [Member] | Sell Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | €		€ 10,373,000					€ 10,527,000
Cash Flow Hedges [Member] | Euro / Philippine Peso [Member] | Designated as Hedging [Member] | Buy Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | PHP			PHP 699,279,000					PHP 758,634,000
Cash Flow Hedges [Member] | British Pound / Philippine Peso [Member] | Designated as Hedging [Member] | Buy Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | PHP			PHP 557,025,000					PHP 542,063,000
Cash Flow Hedges [Member] | Euro / U.S. Dollar [Member] | Designated as Hedging [Member] | Buy Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | $	$ 43,951,000					$ 51,433,000
Cash Flow Hedges [Member] | U.S. Dollar / Canadian Dollar [Member] | Designated as Hedging [Member] | Buy Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | CAD				CAD 35,290,000					CAD 34,649,000
Cash Flow Hedges [Member] | U.S Dollar / Euro [Member] | Designated as Hedging [Member] | Buy Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | €		15,379,000
Foreign Currency Hedges [Member] | Euro / U.S. Dollar [Member] | Not Designated as Hedging [Member] | Buy Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | $	3,500,000					12,500,000
Foreign Currency Hedges [Member] | U.S. Dollar / British Pound [Member] | Not Designated as Hedging [Member] | Sell Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | $	$ 10,500,000					$ 10,000,000
Foreign Currency Hedges [Member] | British Pound / Euro [Member] | Not Designated as Hedging [Member] | Sell Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | £					£ 2,500,000					£ 3,500,000
Foreign Currency Hedges [Member] | British Pound / Euro [Member] | Not Designated as Hedging [Member] | Buy Notional [Member]
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative notional amount | €		€ 18,500,000					€ 13,500,000

Financial Derivatives and He113

Financial Derivatives and Hedging Activities - Fair Values of Derivative Instruments (Detail) - Forward Foreign Currency Exchange Contracts [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Designated as Hedging [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives Fair Value [Line Items]
Derivative asset, fair value	$ 2,625	$ 955
Designated as Hedging [Member] | Other Current Liabilities [Member]
Derivatives Fair Value [Line Items]
Derivative liability, fair value	1,493	1,545
Not Designated as Hedging [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives Fair Value [Line Items]
Derivative asset, fair value	60	68
Not Designated as Hedging [Member] | Other Current Liabilities [Member]
Derivatives Fair Value [Line Items]
Derivative liability, fair value	$ 104	$ 49

Financial Derivatives and He114

Financial Derivatives and Hedging Activities - Income or (Loss) from Derivative Instruments Recognized in Results of Operations (Detail) - Forward Foreign Currency Exchange Contracts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Costs of Products Sold [Member] | Designated as Hedging [Member]
Derivative Instruments Gain Loss [Line Items]
Effective portion of derivative instruments, gain (loss)	$ (551)	$ 5,752	$ (655)
Other - Net [Member] | Designated as Hedging [Member]
Derivative Instruments Gain Loss [Line Items]
Ineffective portion of derivative instruments, gain (loss)	(166)	(152)	184
Other - Net [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative instruments, gain (loss)	$ 806	$ 599	$ 1,599

Financial Derivatives and He115

Financial Derivatives and Hedging Activities - Fair Value Amounts Recorded as Component of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Balance at January 1,	$ (178)	$ 3,282
Deferred (losses) gains on cash flow hedges	1,509	2,292
Reclassified to earnings	551	(5,752)
Balance at December 31,	$ 1,882	$ (178)

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Outstanding Shares of Common Stock (Detail) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Stockholders' Equity [Abstract]
Shares outstanding at beginning of year	43,420,000	43,054,000	43,130,000
Shares repurchased			(464,000)
Treasury shares issued for:
Restricted stock awards	108,000	206,000	162,000
401(k) plan		134,000	116,000
Employee stock options exercised	22,000	26,000	110,000
Shares outstanding at end of year	43,550,000	43,420,000	43,054,000

Commitments, Contingencies a117

Commitments, Contingencies and Legal Proceedings - Summary of Minimum Annual Payment Due on Noncancelable Operating Lease (Detail) $ in Thousands	Dec. 31, 2016USD ($)
Leases [Member]
Operating Leased Assets [Line Items]
2,017	$ 5,298
2,018	3,706
2,019	3,030
2,020	2,472
2,021	1,896
Thereafter	7,270
Other [Member]
Operating Leased Assets [Line Items]
2,017	87,831
2,018	23,584
2,019	5,193
2,020	3,115
2,021	2,961
Thereafter	$ 1,890

Commitments, Contingencies a118

Commitments, Contingencies and Legal Proceedings - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)Operable_Unit	Dec. 31, 2015USD ($)
Commitments Contingencies And Litigation [Line Items]
Annual payments due under operating leases	$ 23,700
Aggregate contractual obligation	$ 124,600
Number of operable units | Operable_Unit	5
Increase in remediation activities reserve	$ 40,000	$ 10,000
Reserve for Environmental liabilities, current portion	25,000	12,544
Other Long-Term Liabilities [Member]
Commitments Contingencies And Litigation [Line Items]
Reserve for Environmental liabilities, remaining portion	27,800
January 17, 2017 Consent Decree [Member]
Commitments Contingencies And Litigation [Line Items]
Contribution payment towards remedial action and natural resource damages	65,000
Anticipated cost to complete work for remaining site remedy	200,000
Expected payments for governments unreimbursed past costs which are under dispute	34,000
GP [Member] | January 17, 2017 Consent Decree [Member]
Commitments Contingencies And Litigation [Line Items]
Contribution payment towards remedial action and natural resource damages	$ 145,000
Minimum [Member] | December 2009 – Long Term Monitoring Plan [Member]
Commitments Contingencies And Litigation [Line Items]
Period over which cash expenditure to be incurred for monitoring activities	30 years
Minimum [Member] | GLT, GP and NCR [Member] | January 17, 2017 Consent Decree [Member]
Commitments Contingencies And Litigation [Line Items]
Contribution payment towards remedial action and natural resource damages	$ 1,000,000
Maximum [Member]
Commitments Contingencies And Litigation [Line Items]
Estimated cost related to Fox River matter	150,000
Maximum [Member] | January 17, 2017 Consent Decree [Member]
Commitments Contingencies And Litigation [Line Items]
Estimated cost related to Fox River matter	40,000
OU2-5 [Member]
Commitments Contingencies And Litigation [Line Items]
Estimated future cost of cleanup work	$ 13,400	$ 13,400
Expected cleanup work continuation year	through 2,018
NCR costs and damages percentage	100.00%
OU2-5 [Member] | Whiting Litigation [Member]
Commitments Contingencies And Litigation [Line Items]
NCR costs and damages percentage	100.00%

Commitments, Contingencies a119

Commitments, Contingencies and Legal Proceedings - Schedule of Reserves (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Environmental Remediation Obligations [Abstract]
Beginning balance	$ 17,105	$ 16,223
Payments	(4,317)	(9,118)
Accruals	40,000	10,000
Ending balance	$ 52,788	$ 17,105

Segment and Geographic Informat

Segment and Geographic Information - Schedule of Financial and Other Information by Business Unit (Detail) - USD ($) $ in Thousands	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales	$ 390,865	$ 405,301	$ 406,413	$ 402,218	$ 412,852	$ 410,803	$ 417,469	$ 419,960	$ 1,604,797	$ 1,661,084	$ 1,802,415
Energy and related sales, net									6,141	5,664	7,927
Total revenues									1,610,938	1,666,748	1,810,342
Cost of products sold									1,392,335	1,463,783	1,575,188
Gross profit	56,867	$ 61,170	$ 42,723	$ 57,843	58,116	$ 32,833	$ 52,108	$ 59,908	218,603	202,965	235,154
SG&A									190,694	127,706	133,235
Losses (gains) on dispositions of plant, equipment and timberlands, net									216	(21,113)	(4,861)
Operating income									27,693	96,372	106,780
Non-operating expense									(16,887)	(17,796)	(19,397)
Income before income taxes									10,806	78,576	87,383
Supplementary Data
Plant, equipment and timberlands, net	775,898				698,864				775,898	698,864	697,608
Depreciation, depletion and amortization									65,826	63,236	70,555
Capital expenditures									160,200	99,900	66,000
Composite Fibers [Member]
Segment Reporting Information [Line Items]
Net sales									516,954	541,468	617,851
Total revenues									517,000	541,500	617,900
Cost of products sold									416,400	434,400	498,000
Gross profit									100,600	107,100	119,900
SG&A									46,300	45,700	51,600
Operating income									54,300	61,400	68,300
Income before income taxes									54,300	61,400	68,300
Supplementary Data
Plant, equipment and timberlands, net	235,100				258,100				235,100	258,100	277,800
Depreciation, depletion and amortization									27,800	26,200	29,700
Capital expenditures									18,800	26,800	23,900
Advanced Airlaid Materials [Member]
Segment Reporting Information [Line Items]
Net sales									244,262	244,589	281,673
Total revenues									244,300	244,600	281,700
Cost of products sold									209,500	215,700	247,600
Gross profit									34,800	28,900	34,100
SG&A									8,400	7,600	8,800
Operating income									26,400	21,300	25,300
Income before income taxes									26,400	21,300	25,300
Supplementary Data
Plant, equipment and timberlands, net	179,300				153,500				179,300	153,500	163,600
Depreciation, depletion and amortization									9,000	8,800	9,100
Capital expenditures									36,800	7,800	7,600
Specialty Papers [Member]
Segment Reporting Information [Line Items]
Net sales									843,582	875,026	902,891
Energy and related sales, net									6,100	5,700	7,900
Total revenues									849,700	880,700	910,800
Cost of products sold									752,600	804,500	821,800
Gross profit									97,100	76,200	89,000
SG&A									55,900	43,300	50,400
Operating income									41,200	32,900	38,600
Income before income taxes									41,200	32,900	38,600
Supplementary Data
Plant, equipment and timberlands, net	352,900				281,600				352,900	281,600	250,100
Depreciation, depletion and amortization									26,300	26,000	29,900
Capital expenditures									99,000	63,500	32,100
Other and Unallocated [Member]
Segment Reporting Information [Line Items]
Cost of products sold									13,800	9,200	7,800
Gross profit									(13,800)	(9,200)	(7,800)
SG&A									80,100	31,000	22,400
Losses (gains) on dispositions of plant, equipment and timberlands, net									200	(21,100)	(4,900)
Operating income									(94,100)	(19,100)	(25,300)
Non-operating expense									(16,900)	(17,800)	(19,400)
Income before income taxes									(111,000)	(36,900)	(44,700)
Supplementary Data
Plant, equipment and timberlands, net	$ 8,600				$ 5,700				8,600	5,700	6,100
Depreciation, depletion and amortization									2,700	2,200	1,900
Capital expenditures									$ 5,600	$ 1,800	$ 2,400

Segment and Geographic Infor121

Segment and Geographic Information - Schedule of Segment Reporting Information of Revenue by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales	$ 390,865	$ 405,301	$ 406,413	$ 402,218	$ 412,852	$ 410,803	$ 417,469	$ 419,960	$ 1,604,797	$ 1,661,084	$ 1,802,415
Composite Fibers [Member]
Segment Reporting Information [Line Items]
Net sales									516,954	541,468	617,851
Composite Fibers [Member] | Food & Beverage [Member]
Segment Reporting Information [Line Items]
Net sales									258,463	274,865	296,304
Composite Fibers [Member] | Wallcovering [Member]
Segment Reporting Information [Line Items]
Net sales									90,767	91,620	149,957
Composite Fibers [Member] | Metallized [Member]
Segment Reporting Information [Line Items]
Net sales									61,059	68,397	80,839
Composite Fibers [Member] | Composite Laminates [Member]
Segment Reporting Information [Line Items]
Net sales									35,107	34,897	38,159
Composite Fibers [Member] | Technical Specialties and Other [Member]
Segment Reporting Information [Line Items]
Net sales									71,558	71,689	52,592
Advanced Airlaid Materials [Member]
Segment Reporting Information [Line Items]
Net sales									244,262	244,589	281,673
Advanced Airlaid Materials [Member] | Feminine Hygiene [Member]
Segment Reporting Information [Line Items]
Net sales									173,902	182,048	216,836
Advanced Airlaid Materials [Member] | Specialty Wipes [Member]
Segment Reporting Information [Line Items]
Net sales									25,206	22,950	16,002
Advanced Airlaid Materials [Member] | Adult Incontinence [Member]
Segment Reporting Information [Line Items]
Net sales									12,281	10,720	17,586
Advanced Airlaid Materials [Member] | Home Care [Member]
Segment Reporting Information [Line Items]
Net sales									12,630	13,345	15,401
Advanced Airlaid Materials [Member] | Other [Member]
Segment Reporting Information [Line Items]
Net sales									20,243	15,526	15,848
Specialty Papers [Member]
Segment Reporting Information [Line Items]
Net sales									843,582	875,026	902,891
Specialty Papers [Member] | Other [Member]
Segment Reporting Information [Line Items]
Net sales									3,568	3,538	3,805
Specialty Papers [Member] | Carbonless & Forms [Member]
Segment Reporting Information [Line Items]
Net sales									319,648	349,831	376,959
Specialty Papers [Member] | Engineered Products [Member]
Segment Reporting Information [Line Items]
Net sales									189,463	190,943	194,189
Specialty Papers [Member] | Envelope & Converting [Member]
Segment Reporting Information [Line Items]
Net sales									173,362	178,067	183,194
Specialty Papers [Member] | Book Publishing [Member]
Segment Reporting Information [Line Items]
Net sales									$ 157,541	$ 152,647	$ 144,744

Segment and Geographic Infor122

Segment and Geographic Information - Additional Information (Detail) - Customer	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of customers accounting for percentage of net sales	0	0	0
Customers accounted for certain percentage in net sales	10.00%	10.00%	10.00%
Advanced Airlaid Materials [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of customers accounting for percentage of net sales	1	1	1

Segment and Geographic Infor123

Segment and Geographic Information - Schedule of Net Sales to External Customers and Location of Net Plant, Equipment and Timberlands (Detail) - USD ($) $ in Thousands	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 390,865	$ 405,301	$ 406,413	$ 402,218	$ 412,852	$ 410,803	$ 417,469	$ 419,960	$ 1,604,797	$ 1,661,084	$ 1,802,415
Plant, Equipment and Timberlands – Net	775,898				698,864				775,898	698,864	697,608
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									918,567	959,730	980,933
Plant, Equipment and Timberlands – Net	391,977				287,447				391,977	287,447	256,251
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									427,520	444,009	529,003
Plant, Equipment and Timberlands – Net	220,380				232,340				220,380	232,340	257,311
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									78,759	86,442	103,219
Plant, Equipment and Timberlands – Net	51,903				62,931				51,903	62,931	62,617
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									115,902	118,568	129,401
Plant, Equipment and Timberlands – Net	79,727				81,201				79,727	81,201	82,774
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									64,049	52,335	59,859
Plant, Equipment and Timberlands – Net	$ 31,911				$ 34,945				$ 31,911	$ 34,945	$ 38,655

Condensed Consolidating Fina124

Condensed Consolidating Financial Statements - Additional Information (Detail)	Dec. 31, 2016	Oct. 03, 2012
PHG Tea Leaves, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Percentage owned in domestic subsidiaries	100.00%
Mollanvick, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Percentage owned in domestic subsidiaries	100.00%
Glatfelter Holdings, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage owned in domestic subsidiaries	100.00%
Glatfelter Composite Fibers N. A., Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Percentage owned in domestic subsidiaries	100.00%
Glatfelter Advanced Materials N.A., Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Percentage owned in domestic subsidiaries	100.00%
5.375% Notes [Member]
Schedule of Equity Method Investments [Line Items]
Percent on aggregate principal amount of outstanding	5.375%	5.375%

Condensed Consolidating Fina125

Condensed Consolidating Financial Statements - Condensed Consolidating Statement of Income (Detail) - USD ($) $ in Thousands	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Income Statements, Captions [Line Items]
Net sales	$ 390,865	$ 405,301	$ 406,413	$ 402,218	$ 412,852	$ 410,803	$ 417,469	$ 419,960	$ 1,604,797	$ 1,661,084	$ 1,802,415
Energy and related sales, net									6,141	5,664	7,927
Total revenues									1,610,938	1,666,748	1,810,342
Costs of products sold									1,392,335	1,463,783	1,575,188
Gross profit	$ 56,867	$ 61,170	$ 42,723	$ 57,843	$ 58,116	$ 32,833	$ 52,108	$ 59,908	218,603	202,965	235,154
Selling, general and administrative expenses									190,694	127,706	133,235
Losses (gains) on dispositions of plant, equipment and timberlands, net									216	(21,113)	(4,861)
Operating income									27,693	96,372	106,780
Other non-operating income (expense)
Interest expense									(15,822)	(17,464)	(18,921)
Interest income									206	283	159
Other, net									(1,271)	(615)	(635)
Total non-operating expense									(16,887)	(17,796)	(19,397)
Income before income taxes									10,806	78,576	87,383
Income tax provision (benefit)									(10,748)	14,001	18,137
Net income									21,554	64,575	69,246
Other comprehensive income (loss)									(14,120)	(35,616)	(79,513)
Comprehensive income (loss)									7,434	28,959	(10,267)
Adjustments/ Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Net sales									(69,645)	(78,026)	(75,917)
Total revenues									(69,645)	(78,026)	(75,917)
Costs of products sold									(69,645)	(78,026)	(75,917)
Other non-operating income (expense)
Interest expense									4,715	37,542	102,755
Interest income									(4,715)	(37,543)	(102,756)
Equity in earnings of subsidiaries									(119,354)	(86,683)	(33,325)
Total non-operating expense									(119,354)	(86,684)	(33,326)
Income before income taxes									(119,354)	(86,684)	(33,326)
Net income									(119,354)	(86,684)	(33,326)
Other comprehensive income (loss)									51,092	11,330	11,864
Comprehensive income (loss)									(68,262)	(75,354)	(21,462)
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Net sales									843,582	875,026	902,892
Energy and related sales, net									6,141	5,664	7,927
Total revenues									849,723	880,690	910,819
Costs of products sold									763,109	811,329	830,710
Gross profit									86,614	69,361	80,109
Selling, general and administrative expenses									133,387	71,751	67,086
Losses (gains) on dispositions of plant, equipment and timberlands, net									177	(19,720)	(3,545)
Operating income									(46,950)	17,330	16,568
Other non-operating income (expense)
Interest expense									(17,436)	(18,147)	(19,105)
Interest income									687	673	638
Equity in earnings of subsidiaries									61,007	61,946	67,590
Other, net									(2,312)	(3,389)	(1,366)
Total non-operating expense									41,946	41,083	47,757
Income before income taxes									(5,004)	58,413	64,325
Income tax provision (benefit)									(26,558)	(6,162)	(4,921)
Net income									21,554	64,575	69,246
Other comprehensive income (loss)									(14,120)	(35,616)	(79,513)
Comprehensive income (loss)									7,434	28,959	(10,267)
Guarantors [Member]
Condensed Income Statements, Captions [Line Items]
Net sales									75,000	84,704	78,077
Total revenues									75,000	84,704	78,077
Costs of products sold									70,991	80,455	74,414
Gross profit									4,009	4,249	3,663
Selling, general and administrative expenses									(156)	821	1,765
Losses (gains) on dispositions of plant, equipment and timberlands, net										(1,183)	(1,316)
Operating income									4,165	4,611	3,214
Other non-operating income (expense)
Interest expense									(41)
Interest income									4,177	37,127	102,241
Equity in earnings of subsidiaries									58,347	24,737	(34,265)
Other, net									(3,966)	(1,471)	317
Total non-operating expense									58,517	60,393	68,293
Income before income taxes									62,682	65,004	71,507
Income tax provision (benefit)									1,675	2,922	3,916
Net income									61,007	62,082	67,591
Other comprehensive income (loss)									(25,916)	(41,010)	(40,704)
Comprehensive income (loss)									35,091	21,072	26,887
Non Guarantors [Member]
Condensed Income Statements, Captions [Line Items]
Net sales									755,860	779,380	897,363
Total revenues									755,860	779,380	897,363
Costs of products sold									627,880	650,025	745,981
Gross profit									127,980	129,355	151,382
Selling, general and administrative expenses									57,463	55,134	64,384
Losses (gains) on dispositions of plant, equipment and timberlands, net									39	(210)
Operating income									70,478	74,431	86,998
Other non-operating income (expense)
Interest expense									(3,060)	(36,859)	(102,571)
Interest income									57	26	36
Other, net									5,007	4,245	414
Total non-operating expense									2,004	(32,588)	(102,121)
Income before income taxes									72,482	41,843	(15,123)
Income tax provision (benefit)									14,135	17,241	19,142
Net income									58,347	24,602	(34,265)
Other comprehensive income (loss)									(25,176)	29,680	28,840
Comprehensive income (loss)									$ 33,171	$ 54,282	$ (5,425)

Condensed Consolidating Fina126

Condensed Consolidating Financial Statements - Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 55,444	$ 105,304	$ 99,837	$ 122,882
Other current assets	438,815	447,063
Plant, equipment and timberlands, net	775,898	698,864	697,608
Other assets	251,102	249,185
Total assets	1,521,259	1,500,416
Liabilities and Shareholders' Equity
Current liabilities	323,011	304,320
Long-term debt	363,647	353,296
Deferred income taxes	54,995	76,458
Other long-term liabilities	125,780	103,095
Total liabilities	867,433	837,169
Shareholders' equity	653,826	663,247	649,109	684,476
Total liabilities and shareholders’ equity	1,521,259	1,500,416
Adjustments/ Eliminations [Member]
Assets
Other current assets	(265,663)	(230,509)
Investments in subsidiaries	(1,329,594)	(1,244,566)
Total assets	(1,595,257)	(1,475,075)
Liabilities and Shareholders' Equity
Current liabilities	(265,663)	(230,523)
Total liabilities	(265,663)	(230,523)
Shareholders' equity	(1,329,594)	(1,244,552)
Total liabilities and shareholders’ equity	(1,595,257)	(1,475,075)
Parent Company [Member]
Assets
Cash and cash equivalents	5,082	59,130	42,208	56,216
Other current assets	206,002	199,690
Plant, equipment and timberlands, net	360,521	286,334
Investments in subsidiaries	789,565	737,450
Other assets	123,010	106,586
Total assets	1,484,180	1,389,190
Liabilities and Shareholders' Equity
Current liabilities	426,628	363,037
Long-term debt	283,686	247,075
Deferred income taxes	10,221	28,561
Other long-term liabilities	109,819	87,270
Total liabilities	830,354	725,943
Shareholders' equity	653,826	663,247
Total liabilities and shareholders’ equity	1,484,180	1,389,190
Guarantors [Member]
Assets
Cash and cash equivalents	1,461	465	509	495
Other current assets	256,289	238,515
Plant, equipment and timberlands, net	31,455	1,114
Investments in subsidiaries	540,029	507,116
Total assets	829,234	747,210
Liabilities and Shareholders' Equity
Current liabilities	26,085	9,725
Long-term debt	14,000
Deferred income taxes	(729)	(79)
Other long-term liabilities	313
Total liabilities	39,669	9,646
Shareholders' equity	789,565	737,564
Total liabilities and shareholders’ equity	829,234	747,210
Non Guarantors [Member]
Assets
Cash and cash equivalents	48,901	45,709	$ 57,120	$ 66,171
Other current assets	242,187	239,367
Plant, equipment and timberlands, net	383,922	411,416
Other assets	128,092	142,599
Total assets	803,102	839,091
Liabilities and Shareholders' Equity
Current liabilities	135,961	162,081
Long-term debt	65,961	106,221
Deferred income taxes	45,503	47,976
Other long-term liabilities	15,648	15,825
Total liabilities	263,073	332,103
Shareholders' equity	540,029	506,988
Total liabilities and shareholders’ equity	$ 803,102	$ 839,091

Condensed Consolidating Fina127

Condensed Consolidating Financial Statements - Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided (used) by Operating activities	$ 116,110	$ 133,743	$ 99,577
Investing activities
Expenditures for purchases of plant, equipment and timberlands	(160,158)	(99,889)	(66,046)
Proceeds from disposals of plant, equipment and timberlands, net	70	24,459	5,072
Acquisition, net of cash acquired		(224)	(8,015)
Other	(800)	(1,600)	(600)
Net cash used by investing activities	(160,888)	(77,254)	(69,589)
Financing activities
Net long-term borrowings	14,114	(24,650)	(18,128)
Payments of borrowing costs	(136)	(1,329)
Payments of dividends	(21,589)	(20,443)	(18,696)
Repurchases of common stock			(12,180)
Proceeds from government grants	5,582	421
Payments related to share-based compensation awards and other	(990)	(2,015)	(1,877)
Net cash used by financing activities	(3,019)	(48,016)	(50,881)
Effect of exchange rate on cash	(2,063)	(3,006)	(2,152)
Net increase (decrease) in cash and cash equivalents	(49,860)	5,467	(23,045)
Cash and cash equivalents at the beginning of period	105,304	99,837	122,882
Cash and cash equivalents at the end of period	55,444	105,304	99,837
Adjustments/ Eliminations [Member]
Investing activities
Repayments from intercompany loans	(15,601)	(57,855)	(20,840)
Advances of intercompany loans	18,330	49,230	39,011
Intercompany capital contributed	17,500	(9,800)
Net cash used by investing activities	20,229	(18,425)	18,171
Financing activities
Repayments of intercompany loans	15,601	57,855	20,840
Borrowings of intercompany loans	(18,330)	(49,230)	(39,011)
Intercompany capital (returned) received	(17,500)	9,800
Net cash used by financing activities	(20,229)	18,425	(18,171)
Parent Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided (used) by Operating activities	33,109	34,391	36,240
Investing activities
Expenditures for purchases of plant, equipment and timberlands	(104,595)	(65,265)	(34,518)
Proceeds from disposals of plant, equipment and timberlands, net	41	22,741	3,707
Advances of intercompany loans			(12,671)
Intercompany capital contributed	(17,000)	10,100
Other	(800)	(1,600)	(600)
Net cash used by investing activities	(122,354)	(34,024)	(44,082)
Financing activities
Net long-term borrowings	36,000
Payments of borrowing costs	(136)	(1,329)
Payments of dividends	(21,589)	(20,443)	(18,696)
Repurchases of common stock			(12,180)
Repayments of intercompany loans		(9,158)
Borrowings of intercompany loans	18,330	49,230	26,340
Proceeds from government grants	3,582	421
Payments related to share-based compensation awards and other	(990)	(2,166)	(1,630)
Net cash used by financing activities	35,197	16,555	(6,166)
Net increase (decrease) in cash and cash equivalents	(54,048)	16,922	(14,008)
Cash and cash equivalents at the beginning of period	59,130	42,208	56,216
Cash and cash equivalents at the end of period	5,082	59,130	42,208
Guarantors [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided (used) by Operating activities	1,275	627	4,159
Investing activities
Expenditures for purchases of plant, equipment and timberlands	(30,682)	(109)
Proceeds from disposals of plant, equipment and timberlands, net		1,213	1,355
Repayments from intercompany loans	15,601	57,855	20,840
Advances of intercompany loans	(18,330)	(49,230)	(26,340)
Intercompany capital contributed	(500)	(300)
Net cash used by investing activities	(33,911)	9,429	(4,145)
Financing activities
Net long-term borrowings	14,000
Intercompany capital (returned) received	17,000	(10,100)
Payment of intercompany dividend	632
Proceeds from government grants	2,000
Net cash used by financing activities	33,632	(10,100)
Net increase (decrease) in cash and cash equivalents	996	(44)	14
Cash and cash equivalents at the beginning of period	465	509	495
Cash and cash equivalents at the end of period	1,461	465	509
Non Guarantors [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided (used) by Operating activities	81,726	98,725	59,178
Investing activities
Expenditures for purchases of plant, equipment and timberlands	(24,881)	(34,515)	(31,528)
Proceeds from disposals of plant, equipment and timberlands, net	29	505	10
Acquisition, net of cash acquired		(224)	(8,015)
Net cash used by investing activities	(24,852)	(34,234)	(39,533)
Financing activities
Net long-term borrowings	(35,886)	(24,650)	(18,128)
Repayments of intercompany loans	(15,601)	(48,697)	(20,840)
Borrowings of intercompany loans			12,671
Intercompany capital (returned) received	500	300
Payment of intercompany dividend	(632)
Payments related to share-based compensation awards and other		151	(247)
Net cash used by financing activities	(51,619)	(72,896)	(26,544)
Effect of exchange rate on cash	(2,063)	(3,006)	(2,152)
Net increase (decrease) in cash and cash equivalents	3,192	(11,411)	(9,051)
Cash and cash equivalents at the beginning of period	45,709	57,120	66,171
Cash and cash equivalents at the end of period	$ 48,901	$ 45,709	$ 57,120

Quarterly Results - Schedule of

Quarterly Results - Schedule of Net Income (Loss) and Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Selected Quarterly Financial Information [Abstract]
Net sales	$ 390,865	$ 405,301	$ 406,413	$ 402,218	$ 412,852	$ 410,803	$ 417,469	$ 419,960	$ 1,604,797	$ 1,661,084	$ 1,802,415
Gross profit	56,867	61,170	42,723	57,843	58,116	32,833	52,108	59,908	$ 218,603	$ 202,965	$ 235,154
Net income (loss)	$ (16,180)	$ 19,601	$ 1,965	$ 16,168	$ 34,298	$ 2,848	$ 13,925	$ 13,504
Earnings (loss) per share	$ (0.37)	$ 0.44	$ 0.04	$ 0.37	$ 0.78	$ 0.06	$ 0.32	$ 0.31

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, beginning of year	$ 2,239	$ 2,703	$ 2,725
Provision	32	7	1,061
Write-offs, recoveries and discounts allowed	(497)	(275)	(946)
Other	(55)	(196)	(137)
Balance, end of year	1,719	2,239	2,703
Allowance for Sales Discounts and Deductions [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, beginning of year	1,593	1,809	1,810
Provision	4,283	3,856	4,356
Write-offs, recoveries and discounts allowed	(4,368)	(3,649)	(4,719)
Other	(46)	(423)	362
Balance, end of year	$ 1,462	$ 1,593	$ 1,809