$EAF
GRAFTECH INTERNATIONAL LTD Stock $eaf

$eaf Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000093114822000027 Filed on February 22, 2022

Income Statement

Concept	2021 Q4	2021 Q3	2021
Revenue	$363.3M	$347.3M	$1.346B
YoY Change	7.48%	21.03%	9.92%
Cost Of Revenue	$182.8M	$170.3M	$701.3M
YoY Change	12.48%	29.14%	24.38%
Gross Profit	$180.5M	$177.1M	$644.5M
YoY Change	2.85%	14.14%	-2.43%
Gross Profit Margin	49.69%	50.98%	47.89%
Selling, General & Admin	$17.67M	$19.01M	$132.6M
YoY Change	-1.31%	-0.29%	95.26%
% of Gross Profit	9.79%	10.73%	20.58%
Research & Development	$801.0K	$983.0K	$3.771M
YoY Change	-57.84%	51.23%	-5.13%
% of Gross Profit	0.44%	0.56%	0.59%
Depreciation & Amortization	$17.30M	$15.58M	$55.00M
YoY Change	-3.35%	-4.39%	6.8%
% of Gross Profit	9.58%	8.8%	8.53%
Operating Expenses	$18.47M	$19.99M	$136.4M
YoY Change	-6.73%	1.41%	89.71%
Operating Profit	$162.0M	$157.1M	$508.1M
YoY Change	4.07%	16.0%	-13.68%
Interest Expense	-$14.33M	$16.05M	$68.76M
YoY Change	-50.41%	-28.59%	-29.89%
% of Operating Profit	-8.84%	10.22%	13.53%
Other Income/Expense, Net	$15.91M	$364.0K	$16.45M
YoY Change	31.45%	-152.45%	-594.02%
Pretax Income	$163.6M	$141.8M	$456.4M
YoY Change	17.79%	26.23%	-10.51%
Income Tax	$22.13M	$21.92M	$68.08M
% Of Pretax Income	13.53%	15.46%	14.92%
Net Earnings	$141.5M	$119.9M	$388.3M
YoY Change	13.09%	27.22%	-10.6%
Net Earnings / Revenue	38.94%	34.51%	28.86%
Basic Earnings Per Share		$0.45	$1.46
Diluted Earnings Per Share	$537.9K	$0.45	$1.46
COMMON SHARES
Basic Shares Outstanding	263.2M shares	267.1M shares	266.3M shares
Diluted Shares Outstanding		267.2M shares	266.3M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments	$57.51M	$86.66M	$57.51M
YoY Change	-60.44%	-45.43%	-60.44%
Cash & Equivalents	$57.51M	$86.66M	$57.51M
Short-Term Investments
Other Short-Term Assets	$11.90M	$62.90M	$18.90M
YoY Change	252.03%	78.17%	49.96%
Inventory	$289.4M	$269.7M	$301.8M
Prepaid Expenses
Receivables	$208.7M	$185.3M	$208.7M
Other Receivables	$0.00	$0.00	$40.86M
Total Short-Term Assets	$627.9M	$604.5M	$627.9M
YoY Change	-0.21%	-8.07%	-0.21%
LONG-TERM ASSETS
Property, Plant & Equipment	$501.5M	$499.5M	$509.1M
YoY Change	-0.94%	-0.4%	-0.83%
Goodwill	$171.1M	$171.1M
YoY Change	-0.01%	-0.01%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$85.68M	$85.06M	$42.54M
YoY Change	-8.52%	-11.96%	-8.71%
Total Long-Term Assets	$784.5M	$788.6M	$784.5M
YoY Change	-2.37%	-2.64%	-2.37%
TOTAL ASSETS
Total Short-Term Assets	$627.9M	$604.5M	$627.9M
Total Long-Term Assets	$784.5M	$788.6M	$784.5M
Total Assets	$1.412B	$1.393B	$1.412B
YoY Change	-1.42%	-5.07%	-1.42%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$117.1M	$105.2M	$117.1M
YoY Change	64.97%	114.4%	64.95%
Accrued Expenses	$113.5M	$136.2M	$103.7M
YoY Change	7.89%	-7.25%	12.43%
Deferred Revenue	$9.840M
YoY Change
Short-Term Debt	$127.0K	$128.0K	$0.00
YoY Change	-3.05%	-12.93%
Long-Term Debt Due	$127.0K	$128.0K	$127.0K
YoY Change	-3.05%	-12.93%	27.0%
Total Short-Term Liabilities	$234.6M	$245.4M	$234.6M
YoY Change	18.41%	15.68%	18.41%
LONG-TERM LIABILITIES
Long-Term Debt	$1.030B	$1.127B	$1.030B
YoY Change	-27.5%	-27.93%	-27.5%
Other Long-Term Liabilities	$68.66M	$71.55M	$84.11M
YoY Change	-15.74%	-6.35%	-16.39%
Total Long-Term Liabilities	$1.098B	$1.199B	$1.114B
YoY Change	-26.86%	-26.93%	-26.76%
TOTAL LIABILITIES
Total Short-Term Liabilities	$234.6M	$245.4M	$234.6M
Total Long-Term Liabilities	$1.098B	$1.199B	$1.114B
Total Liabilities	$1.333B	$1.444B	$1.389B
YoY Change	-21.58%	-22.05%	-21.18%
SHAREHOLDERS EQUITY
Retained Earnings	-$733.2M	-$869.3M
YoY Change	-31.53%	-27.14%
Common Stock	$2.633M	$2.636M
YoY Change	-1.46%	-1.35%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$23.40M	-$110.7M	$23.40M
YoY Change
Total Liabilities & Shareholders Equity	$1.412B	$1.393B	$1.412B
YoY Change	-1.42%	-5.07%	-1.42%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021
OPERATING ACTIVITIES
Net Income	$141.5M	$119.9M	$388.3M
YoY Change	13.09%	27.22%	-10.6%
Depreciation, Depletion And Amortization	$17.30M	$15.58M	$55.00M
YoY Change	-3.35%	-4.39%	6.8%
Cash From Operating Activities	$100.0M	$134.3M	$443.0M
YoY Change	-31.91%	4.07%	-21.4%
INVESTING ACTIVITIES
Capital Expenditures	-$17.83M	-$14.37M	$58.26M
YoY Change	230.2%	128.16%	61.49%
Acquisitions
YoY Change
Other Investing Activities	$41.00K	$137.0K	$397.0K
YoY Change	-86.33%		-0.75%
Cash From Investing Activities	-$17.79M	-$14.24M	-$57.86M
YoY Change	248.82%	125.98%	62.09%
FINANCING ACTIVITIES
Cash Dividend Paid		$2.028M	$7.439M
YoY Change		113.92%	-13.53%
Common Stock Issuance & Retirement, Net			$50.00M
YoY Change			66.11%
Debt Paid & Issued, Net			$400.1M
YoY Change
Cash From Financing Activities	-111.0M	-146.2M	-$471.8M
YoY Change	-28.92%	-3.74%	1.75%
NET CHANGE
Cash From Operating Activities	100.0M	134.3M	$443.0M
Cash From Investing Activities	-17.79M	-14.24M	-$57.86M
Cash From Financing Activities	-111.0M	-146.2M	-$471.8M
Net Change In Cash	-28.71M	-26.21M	-$86.61M
YoY Change	100.8%	-10.25%	-234.77%
FREE CASH FLOW
Cash From Operating Activities	$100.0M	$134.3M	$443.0M
Capital Expenditures	-$17.83M	-$14.37M	$58.26M
Free Cash Flow	$117.9M	$148.6M	$384.8M
YoY Change	-22.61%	9.85%	-27.07%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000931148
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssetsNoncurrent
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CY2020Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
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CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.085
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CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	1-13888
CY2021	dei	Entity Registrant Name EntityRegistrantName	GRAFTECH INTERNATIONAL LTD.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-2496053
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	982 Keynote Circle
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	44131
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Brooklyn Heights
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	OH
CY2021	dei	City Area Code CityAreaCode	216
CY2021	dei	Local Phone Number LocalPhoneNumber	676-2000
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2021	dei	Trading Symbol TradingSymbol	EAF
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2021	dei	Auditor Firm AuditorFirmId	34
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CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.46
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.62
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.58
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	266251097	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	267916483	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	289057356	shares
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.46
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.62
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.58
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	266317194	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	267930644	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	289074601	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	388330000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	434374000	USD
	us-gaap	Net Income Loss NetIncomeLoss	744602000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-162000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-67000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-19605000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	6568000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-6371000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	8632000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-5399000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	1546000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	31802000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-18848000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	4810000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	12197000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12280000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1561000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	400527000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	422094000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	743041000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	388330000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	434374000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	744602000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	65716000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	62963000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	61819000	USD
CY2021	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	231000	USD
CY2020	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	-21090000	USD
CY2019	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	3393000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3657000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	20241000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17503000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-8329000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	16631000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	2665000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	2146000	USD
CY2021	us-gaap	Paid In Kind Interest PaidInKindInterest	12051000	USD
CY2020	us-gaap	Paid In Kind Interest PaidInKindInterest	6192000	USD
CY2019	us-gaap	Paid In Kind Interest PaidInKindInterest	6344000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-7107000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-7861000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-19685000	USD
CY2021	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	16377000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	-86438000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	47687000	USD
CY2021	gti	Repayments Of Related Party Payable RepaymentsOfRelatedPartyPayable	21799000	USD
CY2020	gti	Repayments Of Related Party Payable RepaymentsOfRelatedPartyPayable	27857000	USD
CY2019	gti	Repayments Of Related Party Payable RepaymentsOfRelatedPartyPayable	0	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	5193000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	16470000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	2489000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	443040000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	563646000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	805316000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	58257000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	36075000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	64103000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	397000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	379000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	219000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-57860000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-35696000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-63884000	USD
CY2021	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	142000	USD
CY2020	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	146000	USD
CY2019	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	0	USD
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3109000	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6278000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	500000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	400000000	USD
CY2020	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	896214000	USD
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	350140000	USD
CY2021	gti	Related Party Stock Repurchase RelatedPartyStockRepurchase	0	USD
CY2020	gti	Related Party Stock Repurchase RelatedPartyStockRepurchase	0	USD
CY2019	gti	Related Party Stock Repurchase RelatedPartyStockRepurchase	250000000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	50000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	30099000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10868000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4077000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	71000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	7439000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	8603000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	20613000	USD
CY2021	gti	Payment Of Dividends Related Party PaymentOfDividendsRelatedParty	3206000	USD
CY2020	gti	Payment Of Dividends Related Party PaymentOfDividendsRelatedParty	22272000	USD
CY2019	gti	Payment Of Dividends Related Party PaymentOfDividendsRelatedParty	78010000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3819000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-471792000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-463683000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-709631000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-86612000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	64267000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	31801000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1316000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	240000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-746000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	145442000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	80935000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	49880000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	57514000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	145442000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	80935000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	56333000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	86962000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	121075000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	63791000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	73971000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	99278000	USD
CY2021	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	28927000	USD
CY2020	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-63557000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	404000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	28165000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-44633000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	21549000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	31921000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3028000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3929000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5674000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-12420000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-18174000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	66591000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-12790000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-11551000	USD
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	371000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	430000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	62000	USD
CY2021	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	16377000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	-86438000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	47687000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	-1076769000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	744602000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-3418000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	11830000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	1872000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	7020000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-67000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-6371000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1561000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	10868000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2146000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.34
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	20613000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-691073000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	434374000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	4250000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-15594000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	879000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	3254000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-162000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	6568000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12280000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	30099000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2665000	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	71000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.115
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8603000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-329385000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	388330000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-6662000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	24525000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-1970000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-7277000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-19605000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	12197000	USD
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	50000000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	16631000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	351000	USD
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4077000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7439000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	23402000	USD
CY2021	us-gaap	Nature Of Operations NatureOfOperations	Discussion of Business and Structure
CY2018Q2	us-gaap	Shares Issued SharesIssued	38097525	shares
CY2018Q2	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	15.00
CY2021Q4	gti	Numberof Major Product Categories NumberofMajorProductCategories	2
CY2021	us-gaap	Depreciation Depreciation	55000000	USD
CY2020	us-gaap	Depreciation Depreciation	51500000	USD
CY2019	us-gaap	Depreciation Depreciation	49700000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	15700000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	8900000	USD
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	11800000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	18100000	USD
CY2021	gti	Deferred Costs Amount Deferred In Period DeferredCostsAmountDeferredInPeriod	700000	USD
CY2020	gti	Deferred Costs Amount Deferred In Period DeferredCostsAmountDeferredInPeriod	10200000	USD
CY2021	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	4600000	USD
CY2020	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	6000000	USD
CY2019	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	5100000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	8600000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	9200000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4100000	USD
CY2021Q4	gti	Related Party Tax Agreement Percent Of Savings RelatedPartyTaxAgreementPercentOfSavings	0.85
CY2021	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesThe preparation of financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the Consolidated Financial Statements and the reported amounts of revenue and expenses. Significant estimates and assumptions are used for, but are not limited to inventory valuation, pension and other post-employment benefits, allowance for doubtful accounts, contingent liabilities, accruals and valuation allowances, asset impairment, and environmental-related accruals. Actual results could differ from our estimates
CY2021	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	16900000	USD
CY2020	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	11100000	USD
CY2019	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	11600000	USD
CY2021	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	4900000	USD
CY2020	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	4900000	USD
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	.<div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Reclassifications and Adjustments</span></div><div style="margin-top:9pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain items previously reported in specific financial statement captions within the Consolidated Statements of Cash Flows have been reclassified between lines within cash flow from operations to conform to the current presentation.</span></div>
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1345788000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1224361000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1790793000	USD
CY2021Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	1200000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	2700000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	1500000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	1200000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	16600000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	2700000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	2100000	USD
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Accelerated Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost	14700000	USD
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Accelerated Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost	14700000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1800000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	500000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	500000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1248935	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.66
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	479500	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	11.49
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	39700	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.67
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	72015	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	14.02
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1616720	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.08
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	972123000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y7M6D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	1616720	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	13.08
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	972123000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P7Y7M6D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1500800	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	12.79
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	972123000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P7Y7M6D
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	906361	shares
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	4.94
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	479500	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.50
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	1227592	shares
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	5.38
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	42349	shares
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	5.09
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	115920	shares
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	6.64
CY2021	us-gaap	Restricted Stock Expense RestrictedStockExpense	10000000	USD
CY2020	us-gaap	Restricted Stock Expense RestrictedStockExpense	1000000	USD
CY2019	us-gaap	Restricted Stock Expense RestrictedStockExpense	500000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	10800000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	600000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	0	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	100000	USD
CY2021Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	10900000	USD
CY2020Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	8900000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1345788000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1224361000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1790793000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501473000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	506217000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	1029688000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	1420131000	USD
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1029561000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1420000000	USD
CY2020Q4	gti	Debt Instrument Event Of Default Percentage Of Debt Held DebtInstrumentEventOfDefaultPercentageOfDebtHeld	0.30
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	142300000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	80616000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	61684000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	142300000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	69871000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	72429000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10700000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11400000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12200000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	10100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	9200000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	8000000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	7300000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	6700000	USD
CY2021	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	56731000	USD
CY2020	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	83555000	USD
CY2019	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	121010000	USD
CY2021	us-gaap	Accretion Expense AccretionExpense	3387000	USD
CY2020	us-gaap	Accretion Expense AccretionExpense	5340000	USD
CY2019	us-gaap	Accretion Expense AccretionExpense	2196000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	8642000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	9179000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4125000	USD
CY2021	us-gaap	Interest Expense InterestExpense	68760000	USD
CY2020	us-gaap	Interest Expense InterestExpense	98074000	USD
CY2021Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	127127000	USD
CY2019	us-gaap	Interest Expense InterestExpense	127331000	USD
CY2021Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.042
CY2021	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	11500000	USD
CY2020	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	7400000	USD
CY2021Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	132113000	USD
CY2020Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	101098000	USD
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	110331000	USD
CY2021Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	30192000	USD
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	54535000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	289432000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	265964000	USD
CY2021Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	8193000	USD
CY2020Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	9242000	USD
CY2021Q4	us-gaap	Prepaid Taxes PrepaidTaxes	40861000	USD
CY2020Q4	us-gaap	Prepaid Taxes PrepaidTaxes	10666000	USD
CY2021Q4	us-gaap	Inventory Parts And Components Net Of Reserves InventoryPartsAndComponentsNetOfReserves	12408000	USD
CY2020Q4	us-gaap	Inventory Parts And Components Net Of Reserves InventoryPartsAndComponentsNetOfReserves	11825000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	11902000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	3381000	USD
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	73364000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	35114000	USD
CY2021Q4	us-gaap	Land Land	49201000	USD
CY2020Q4	us-gaap	Land Land	50285000	USD
CY2021Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	79660000	USD
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	80041000	USD
CY2021Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	621808000	USD
CY2020Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	621478000	USD
CY2021Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	64629000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	33098000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	815298000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	784902000	USD
CY2021Q4	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	16904000	USD
CY2020Q4	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	13159000	USD
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	7272000	USD
CY2020Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	7128000	USD
CY2021Q4	us-gaap	Deferred Revenue DeferredRevenue	9840000	USD
CY2020Q4	us-gaap	Deferred Revenue DeferredRevenue	13056000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	22389000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	56501000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	23158000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	56405000	USD
CY2021Q4	us-gaap	Postemployment Benefits Liability Noncurrent PostemploymentBenefitsLiabilityNoncurrent	14597000	USD
CY2020Q4	us-gaap	Postemployment Benefits Liability Noncurrent PostemploymentBenefitsLiabilityNoncurrent	15669000	USD
CY2021Q4	gti	Pension And Related Benefits PensionAndRelatedBenefits	31139000	USD
CY2020Q4	gti	Pension And Related Benefits PensionAndRelatedBenefits	37847000	USD
CY2021Q4	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	22921000	USD
CY2020Q4	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	27962000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	68657000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	81478000	USD
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	11500000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	8243000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-1266000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5474000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1458000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1129000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4636000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y3M18D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y8M12D
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-142000	USD
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-715000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-291000	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	6835000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	8243000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5474000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	5399000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	6138000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	4816000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	408000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	159000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	14000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	453000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	429000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	227000	USD
CY2021	us-gaap	Lease Cost LeaseCost	6260000	USD
CY2020	us-gaap	Lease Cost LeaseCost	6726000	USD
CY2019	us-gaap	Lease Cost LeaseCost	5057000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5584000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5262000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4995000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	5466000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	6177000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	4724000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7646000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7164000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4109000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4102000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0431
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3528000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3195000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	7637000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	7297000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0582
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4200000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2238000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	969000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	451000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	152000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	8010000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	373000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	7637000	USD
CY2001	gti	Defined Benefit Plan Maximum Salary Increase DefinedBenefitPlanMaximumSalaryIncrease	0.06
CY2001	gti	Defined Benefit Plan Option To Remain In Plan Period DefinedBenefitPlanOptionToRemainInPlanPeriod	P5Y
CY2021Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	166100000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	176300000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	136874000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	140650000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0214
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0178
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0146
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0146
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CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1058000	USD
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CY2021	us-gaap	Product Warranty Expense ProductWarrantyExpense	1183000	USD
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	2092000	USD
CY2021Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1088000	USD
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CY2020Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	40900000	USD
CY2020Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	21800000	USD
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CY2021Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	3800000	USD
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CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	458373000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	510045000	USD
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CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2132000	USD
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CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	75671000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	98225000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68100000	USD
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CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1414000	USD
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CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3591000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4231000	USD
CY2021	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	537000	USD
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CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-38464000	USD
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CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	37280000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	56171000	USD
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CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-6804000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1450000	USD
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CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68076000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	75671000	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	63244000	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	2163000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2175000	USD
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CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3079000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3254000	USD
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CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	14487000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	10620000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	61300000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	63200000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	75800000	USD
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CY2019	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	32981	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1499128	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1082113	shares
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	11511000	USD
CY2020	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	0	USD
CY2019	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	0	USD
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-5298000	USD
CY2020	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	3584000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	4382000	USD
CY2021	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	1098000	USD
CY2020	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	962000	USD
CY2019	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	1173000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	740000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1216000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	352000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	16451000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-3330000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-5203000	USD
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	11500000	USD
CY2021	gti	Value Added Tax Credit Amount Offset ValueAddedTaxCreditAmountOffset	1200000	USD
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss Immediate Recognition As Component In Net Periodic Benefit Cost Credit DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit	3800000	USD
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss Immediate Recognition As Component In Net Periodic Benefit Cost Credit DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit	-3200000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss Immediate Recognition As Component In Net Periodic Benefit Cost Credit DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit	-3500000	USD

Files In Submission

Name	View Source	Status
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0000931148-22-000027-index.html	Edgar Link	pending
0000931148-22-000027.txt	Edgar Link	pending
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a1035graftech-shortterminc.htm	Edgar Link	pending
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$EAF
GRAFTECH INTERNATIONAL LTD Stock $eaf

2021 Q4 Form 10-K Financial Statement

#000093114822000027 Filed on February 22, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EAF GRAFTECH INTERNATIONAL LTD Stock $eaf

2021 Q4 Form 10-K Financial Statement

#000093114822000027 Filed on February 22, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EAF
GRAFTECH INTERNATIONAL LTD Stock $eaf