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Segment and Geographic Information - Schedule of Financial and Other Information by Business Unit (Detail) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 436,261,000 us-gaap_SalesRevenueGoodsNet | $ 465,092,000 us-gaap_SalesRevenueGoodsNet | $ 445,341,000 us-gaap_SalesRevenueGoodsNet | $ 455,721,000 us-gaap_SalesRevenueGoodsNet | $ 434,811,000 us-gaap_SalesRevenueGoodsNet | $ 456,648,000 us-gaap_SalesRevenueGoodsNet | $ 425,967,000 us-gaap_SalesRevenueGoodsNet | $ 405,189,000 us-gaap_SalesRevenueGoodsNet | $ 1,802,415,000 us-gaap_SalesRevenueGoodsNet | $ 1,722,615,000 us-gaap_SalesRevenueGoodsNet | $ 1,577,788,000 us-gaap_SalesRevenueGoodsNet
Energy and related sales, net |  |  |  |  |  |  |  |  | 7,927,000 glt_EnergyAndRelatedSalesNet | 3,153,000 glt_EnergyAndRelatedSalesNet | 7,000,000 glt_EnergyAndRelatedSalesNet
Total revenue |  |  |  |  |  |  |  |  | 1,810,342,000 us-gaap_SalesRevenueNet | 1,725,768,000 us-gaap_SalesRevenueNet | 1,584,788,000 us-gaap_SalesRevenueNet
Cost of products sold |  |  |  |  |  |  |  |  | 1,575,188,000 us-gaap_CostOfGoodsSold | 1,507,108,000 us-gaap_CostOfGoodsSold | 1,371,139,000 us-gaap_CostOfGoodsSold
Gross profit | 58,164,000 us-gaap_GrossProfit | 80,513,000 us-gaap_GrossProfit | 41,437,000 us-gaap_GrossProfit | 55,040,000 us-gaap_GrossProfit | 54,406,000 us-gaap_GrossProfit | 66,039,000 us-gaap_GrossProfit | 40,840,000 us-gaap_GrossProfit | 57,375,000 us-gaap_GrossProfit | 235,154,000 us-gaap_GrossProfit | 218,660,000 us-gaap_GrossProfit | 213,649,000 us-gaap_GrossProfit
SG&A |  |  |  |  |  |  |  |  | 133,235,000 us-gaap_SellingGeneralAndAdministrativeExpense | 133,867,000 us-gaap_SellingGeneralAndAdministrativeExpense | 121,590,000 us-gaap_SellingGeneralAndAdministrativeExpense
Gains on dispositions of plant, equipment and timberlands, net |  |  |  |  |  |  |  |  | (4,861,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (1,726,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (9,815,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Total operating income (loss) |  |  |  |  |  |  |  |  | 106,780,000 us-gaap_OperatingIncomeLoss | 86,519,000 us-gaap_OperatingIncomeLoss | 101,874,000 us-gaap_OperatingIncomeLoss
Non-operating expense |  |  |  |  |  |  |  |  | (19,397,000)us-gaap_NonoperatingIncomeExpense | (17,318,000)us-gaap_NonoperatingIncomeExpense | (22,933,000)us-gaap_NonoperatingIncomeExpense
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 87,383,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 69,201,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 78,941,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Supplementary Data |  |  |  |  |  |  |  |  |  |  |
Plant, equipment and timberlands, net | 697,608,000 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 723,340,000 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 697,608,000 us-gaap_PropertyPlantAndEquipmentNet | 723,340,000 us-gaap_PropertyPlantAndEquipmentNet | 621,200,000 us-gaap_PropertyPlantAndEquipmentNet
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 70,555,000 us-gaap_DepreciationDepletionAndAmortization | 68,196,000 us-gaap_DepreciationDepletionAndAmortization | 69,500,000 us-gaap_DepreciationDepletionAndAmortization
Capital expenditures |  |  |  |  |  |  |  |  | 66,000,000 us-gaap_PaymentsToAcquireProductiveAssets | 103,000,000 us-gaap_PaymentsToAcquireProductiveAssets | 58,800,000 us-gaap_PaymentsToAcquireProductiveAssets
Composite Fibers [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 617,851,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 566,360,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 436,740,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Total revenue |  |  |  |  |  |  |  |  | 617,900,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 566,400,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 436,700,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Cost of products sold |  |  |  |  |  |  |  |  | 498,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 456,500,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 362,600,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Gross profit |  |  |  |  |  |  |  |  | 119,900,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 109,800,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 74,200,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
SG&A |  |  |  |  |  |  |  |  | 51,600,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 47,400,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 38,100,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Total operating income (loss) |  |  |  |  |  |  |  |  | 68,300,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 62,400,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 36,100,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 68,300,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 62,400,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 36,100,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Supplementary Data |  |  |  |  |  |  |  |  |  |  |
Plant, equipment and timberlands, net | 277,800,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember |  |  |  | 300,000,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember |  |  |  | 277,800,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 300,000,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 200,100,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 29,700,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 24,800,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 23,500,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Capital expenditures |  |  |  |  |  |  |  |  | 23,900,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 56,900,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember | 31,400,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_CompositeFibersMember
Advanced Airlaid Materials [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 281,673,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 268,396,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 246,282,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Total revenue |  |  |  |  |  |  |  |  | 281,700,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 268,400,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 246,300,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Cost of products sold |  |  |  |  |  |  |  |  | 247,600,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 238,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 218,700,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Gross profit |  |  |  |  |  |  |  |  | 34,100,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 30,400,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 27,600,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
SG&A |  |  |  |  |  |  |  |  | 8,800,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 8,900,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 9,600,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Total operating income (loss) |  |  |  |  |  |  |  |  | 25,300,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 21,500,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 18,000,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 25,300,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 21,500,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 18,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Supplementary Data |  |  |  |  |  |  |  |  |  |  |
Plant, equipment and timberlands, net | 163,600,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember |  |  |  | 175,100,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember |  |  |  | 163,600,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 175,100,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 172,900,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 9,100,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 8,900,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 8,700,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Capital expenditures |  |  |  |  |  |  |  |  | 7,600,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 6,700,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember | 3,900,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_AdvancedAirlaidMaterialsMember
Specialty Papers [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 902,891,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 887,859,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 894,777,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Energy and related sales, net |  |  |  |  |  |  |  |  | 7,900,000 glt_EnergyAndRelatedSalesNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 3,200,000 glt_EnergyAndRelatedSalesNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 7,000,000 glt_EnergyAndRelatedSalesNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Total revenue |  |  |  |  |  |  |  |  | 910,800,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 891,000,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 901,800,000 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Cost of products sold |  |  |  |  |  |  |  |  | 821,800,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 799,300,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 779,500,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Gross profit |  |  |  |  |  |  |  |  | 89,000,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 91,700,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 122,300,000 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
SG&A |  |  |  |  |  |  |  |  | 50,400,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 52,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 55,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Total operating income (loss) |  |  |  |  |  |  |  |  | 38,600,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 39,700,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 67,300,000 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 38,600,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 39,700,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 67,300,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Supplementary Data |  |  |  |  |  |  |  |  |  |  |
Plant, equipment and timberlands, net | 250,100,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember |  |  |  | 242,600,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember |  |  |  | 250,100,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 242,600,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 247,900,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 29,900,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 33,200,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 37,400,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Capital expenditures |  |  |  |  |  |  |  |  | 32,100,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 34,300,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember | 23,100,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = glt_SpecialtyPapersMember
Other and Unallocated [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cost of products sold |  |  |  |  |  |  |  |  | 7,800,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 13,300,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 10,300,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
Gross profit |  |  |  |  |  |  |  |  | (7,800,000)us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (13,300,000)us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (10,400,000)us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
SG&A |  |  |  |  |  |  |  |  | 22,400,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 25,500,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 18,900,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
Gains on dispositions of plant, equipment and timberlands, net |  |  |  |  |  |  |  |  | (4,900,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (1,700,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (9,800,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
Total operating income (loss) |  |  |  |  |  |  |  |  | (25,300,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (37,100,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (19,500,000)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
Non-operating expense |  |  |  |  |  |  |  |  | (19,400,000)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (17,300,000)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (22,900,000)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (44,700,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (54,400,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | (42,400,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
Supplementary Data |  |  |  |  |  |  |  |  |  |  |
Plant, equipment and timberlands, net | 6,100,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember |  |  |  | 5,600,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember |  |  |  | 6,100,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 5,600,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 300,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 1,900,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | 1,300,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember |
Capital expenditures |  |  |  |  |  |  |  |  | $ 2,400,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | $ 5,100,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember | $ 300,000 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AllOtherSegmentsMember

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- Definition Revenue from sales of excess internally generated power, net of costs to produce, and revenue from sales of renewable energy credits. + References No definition available. + Details
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- Definition Total costs related to goods produced and sold during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
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