$GHC
Graham Holdings Co Stock $ghc

$ghc Overview Financials Valuation SEC Filings Company Website

2023 Q4 Form 10-K Financial Statement

#000010488924000010 Filed on February 23, 2024

Income Statement

Concept	2023 Q4	2023	2022 Q4
Revenue	$1.167B	$4.415B	$1.064B
YoY Change	9.66%	12.5%	23.3%
Cost Of Revenue	$826.3M	$3.103B	$715.6M
YoY Change	15.46%	16.75%	27.62%
Gross Profit	$340.5M	$1.312B	$348.4M
YoY Change	-2.26%	3.57%	15.29%
Gross Profit Margin	29.18%	29.72%	32.74%
Selling, General & Admin	$266.0M	$1.007B	$245.2M
YoY Change	8.48%	9.29%	0.21%
% of Gross Profit	78.11%	76.79%	70.37%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$33.76M	$86.06M	$158.2M
YoY Change	-78.65%	17.42%	352.34%
% of Gross Profit	9.91%	6.56%	45.4%
Operating Expenses	$299.7M	$1.143B	$274.3M
YoY Change	9.26%	8.5%	-1.41%
Operating Profit	$40.79M	$69.39M	$74.06M
YoY Change	-44.92%	-17.29%	209.62%
Interest Expense	-$4.300M	$63.30M	$22.21M
YoY Change	-119.37%	16.36%	-56.23%
% of Operating Profit	-10.54%	91.22%	29.98%
Other Income/Expense, Net	$35.35M	$19.09M	$46.13M
YoY Change	-23.38%	-43.0%	61.52%
Pretax Income	$72.59M	$299.0M	$31.14M
YoY Change	133.09%	145.62%	-69.73%
Income Tax	$16.90M	$87.30M	$24.50M
% Of Pretax Income	23.28%	29.2%	78.67%
Net Earnings	$53.26M	$205.3M	$6.136M
YoY Change	767.98%	206.04%	-92.61%
Net Earnings / Revenue	4.56%	4.65%	0.58%
Basic Earnings Per Share	$11.76	$43.96	$1.28
Diluted Earnings Per Share	$11.72	$43.82	$1.28
COMMON SHARES
Basic Shares Outstanding		4.639M shares
Diluted Shares Outstanding		4.654M shares

Balance Sheet

Concept	2023 Q4	2023	2022 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$866.9M	$866.9M	$791.7M
YoY Change	9.5%	9.5%	-18.41%
Cash & Equivalents	$169.9M	$169.9M	$169.3M
Short-Term Investments	$697.0M	$697.0M	$622.4M
Other Short-Term Assets	$1.298M	$153.2M	$1.547M
YoY Change	-16.1%	28.26%	24.66%
Inventory	$297.2M	$297.2M	$226.8M
Prepaid Expenses	$119.9M		$97.45M
Receivables	$496.2M	$496.2M	$533.6M
Other Receivables	$35.76M	$35.76M	$36.47M
Total Short-Term Assets	$1.849B	$1.849B	$1.708B
YoY Change	8.27%	8.27%	-7.53%
LONG-TERM ASSETS
Property, Plant & Equipment	$560.3M	$969.5M	$503.0M
YoY Change	11.39%	3.98%	7.45%
Goodwill	$1.525B		$1.561B
YoY Change	-2.29%		-5.37%
Intangibles
YoY Change
Long-Term Investments	$186.5M	$186.5M	$186.4M
YoY Change	0.03%	0.03%	19.93%
Other Assets	$233.0M	$2.357B	$189.1M
YoY Change	23.19%	27.14%	15.67%
Total Long-Term Assets	$5.338B	$5.338B	$4.874B
YoY Change	9.53%	9.53%	-12.62%
TOTAL ASSETS
Total Short-Term Assets	$1.849B	$1.849B	$1.708B
Total Long-Term Assets	$5.338B	$5.338B	$4.874B
Total Assets	$7.188B	$7.188B	$6.582B
YoY Change	9.2%	9.2%	-11.36%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$154.5M	$302.3M	$136.2M
YoY Change	13.44%	122.78%	7.25%
Accrued Expenses	$456.0M	$456.0M	$496.8M
YoY Change	-8.22%	-8.22%	-7.01%
Deferred Revenue
YoY Change
Short-Term Debt	$500.0K	$500.0K	$500.0K
YoY Change	0.0%	0.0%
Long-Term Debt Due	$66.75M	$66.75M	$155.8M
YoY Change	-57.16%	-57.16%	9.92%
Total Short-Term Liabilities	$1.230B	$1.230B	$1.174B
YoY Change	4.74%	4.74%	0.66%
LONG-TERM LIABILITIES
Long-Term Debt	$745.1M	$785.8M	$570.5M
YoY Change	30.59%	30.67%	8.52%
Other Long-Term Liabilities	$32.08M	$546.0M	$37.51M
YoY Change	-14.48%	-3.54%	2.76%
Total Long-Term Liabilities	$777.2M	$1.332B	$608.1M
YoY Change	27.81%	14.08%	8.15%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.230B	$1.230B	$1.174B
Total Long-Term Liabilities	$777.2M	$1.332B	$608.1M
Total Liabilities	$3.162B	$3.212B	$2.808B
YoY Change	12.61%	12.67%	-6.39%
SHAREHOLDERS EQUITY
Retained Earnings	$7.337B		$7.163B
YoY Change	2.43%		0.51%
Common Stock	$20.00M		$20.00M
YoY Change	0.0%		0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$4.368B		$4.178B
YoY Change	4.54%		1.71%
Treasury Stock Shares
Shareholders Equity	$3.976B	$3.976B	$3.731B
YoY Change
Total Liabilities & Shareholders Equity	$7.188B	$7.188B	$6.582B
YoY Change	9.2%	9.2%	-11.36%

Cashflow Statement

Concept	2023 Q4	2023	2022 Q4
OPERATING ACTIVITIES
Net Income	$53.26M	$205.3M	$6.136M
YoY Change	767.98%	206.04%	-92.61%
Depreciation, Depletion And Amortization	$33.76M	$86.06M	$158.2M
YoY Change	-78.65%	17.42%	352.34%
Cash From Operating Activities	$57.35M	$259.9M	$31.94M
YoY Change	79.56%	10.3%	519.57%
INVESTING ACTIVITIES
Capital Expenditures	$32.29M	$93.45M	$25.59M
YoY Change	26.2%	13.02%	-218.45%
Acquisitions		$78.15M
YoY Change		-39.93%
Other Investing Activities	-$1.253M	-$2.560M	$13.17M
YoY Change	-109.52%	146.39%	-125.04%
Cash From Investing Activities	-$33.54M	-$153.0M	-$12.42M
YoY Change	170.06%	-16.89%	-83.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$193.2M
YoY Change		170.59%
Debt Paid & Issued, Net		$121.7M
YoY Change		740.54%
Cash From Financing Activities	-30.13M	-$99.84M	-9.923M
YoY Change	203.64%	451.36%	-112.55%
NET CHANGE
Cash From Operating Activities	57.35M	$259.9M	31.94M
Cash From Investing Activities	-33.54M	-$153.0M	-12.42M
Cash From Financing Activities	-30.13M	-$99.84M	-9.923M
Net Change In Cash	-6.325M	$11.46M	9.595M
YoY Change	-165.92%	-63.72%	-4.32%
FREE CASH FLOW
Cash From Operating Activities	$57.35M	$259.9M	$31.94M
Capital Expenditures	$32.29M	$93.45M	$25.59M
Free Cash Flow	$25.06M	$166.4M	$6.352M
YoY Change	294.49%	8.83%	-76.26%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000104889
CY2023Q4	us-gaap	Supplier Finance Program Obligation Statement Of Financial Position Extensible Enumeration SupplierFinanceProgramObligationStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#AccountsPayableAndAccruedLiabilitiesCurrent
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
CY2023Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccountsPayableAndAccruedLiabilitiesCurrent
CY2022Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccountsPayableAndAccruedLiabilitiesCurrent
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-06714
CY2023	dei	Entity Registrant Name EntityRegistrantName	Graham Holdings Co
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	53-0182885
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	1300 North 17th Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Arlington
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	VA
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	22209
CY2023	dei	City Area Code CityAreaCode	703
CY2023	dei	Local Phone Number LocalPhoneNumber	345-6300
CY2023	dei	Security12b Title Security12bTitle	Class B Common Stock, par value$1.00 per share
CY2023	dei	Trading Symbol TradingSymbol	GHC
CY2023	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	true
CY2023	dei	Document Fin Stmt Restatement Recovery Analysis Flag DocumentFinStmtRestatementRecoveryAnalysisFlag	true
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	2000000000	usd
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Firm AuditorFirmId	238
CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2023	dei	Auditor Location AuditorLocation	Washington, District of Columbia
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4414877000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3924493000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3185974000	usd
CY2023	ghc	Selling Generaland Administrative Expenses SellingGeneralandAdministrativeExpenses	1007381000	usd
CY2022	ghc	Selling Generaland Administrative Expenses SellingGeneralandAdministrativeExpenses	921739000	usd
CY2021	ghc	Selling Generaland Administrative Expenses SellingGeneralandAdministrativeExpenses	831853000	usd
CY2023	us-gaap	Depreciation Depreciation	86064000	usd
CY2022	us-gaap	Depreciation Depreciation	73297000	usd
CY2021	us-gaap	Depreciation Depreciation	71415000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	50039000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	58851000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	57870000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	99066000	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	128990000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	32940000	usd
CY2023	us-gaap	Costs And Expenses CostsAndExpenses	4345484000	usd
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	3840595000	usd
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	3108599000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	69393000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	83898000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	77375000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2837000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17914000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	3409000	usd
CY2023	us-gaap	Interest Expense InterestExpense	63301000	usd
CY2022	us-gaap	Interest Expense InterestExpense	54403000	usd
CY2021	us-gaap	Interest Expense InterestExpense	33943000	usd
CY2023	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	138067000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	19094000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	33500000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	299004000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	121734000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	449627000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	87300000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51300000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96300000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	211704000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	70434000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	353327000	usd
CY2023	ghc	Income Loss Attributableto Redeemable Noncontrolling Interestand Nonredeemable Noncontrolling Interest IncomeLossAttributabletoRedeemableNoncontrollingInterestandNonredeemableNoncontrollingInterest	6416000	usd
CY2022	ghc	Income Loss Attributableto Redeemable Noncontrolling Interestand Nonredeemable Noncontrolling Interest IncomeLossAttributabletoRedeemableNoncontrollingInterestandNonredeemableNoncontrollingInterest	3355000	usd
CY2021	ghc	Income Loss Attributableto Redeemable Noncontrolling Interestand Nonredeemable Noncontrolling Interest IncomeLossAttributabletoRedeemableNoncontrollingInterestandNonredeemableNoncontrollingInterest	1252000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	205288000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	67079000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	352075000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	43.96
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.83
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	70.65
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4639000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4823000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4951000	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	43.82
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	13.79
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	70.45
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4654000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4836000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4965000	shares
CY2023	us-gaap	Profit Loss ProfitLoss	211704000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	70434000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	353327000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	21927000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-48340000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-16052000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	380593000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-727097000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	519595000	usd
CY2023	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	-11263000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax	2000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	42146000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	70833000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	5486000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	1641000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	2864000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	3170000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Before Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax	-1087000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Before Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Before Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax	-120000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-350264000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	795066000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-517157000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-5630000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	4765000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	349000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	366561000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-838641000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	501454000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	88375000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-203404000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	133380000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	278186000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-635237000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	368074000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	489890000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-564803000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	721401000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	6416000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3355000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1252000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	483474000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-568158000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	720149000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	169897000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	169319000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	31994000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	20467000	usd
CY2023Q4	ghc	Investments In Marketable Equity Securities And Other Investments InvestmentsInMarketableEquitySecuritiesAndOtherInvestments	697028000	usd
CY2022Q4	ghc	Investments In Marketable Equity Securities And Other Investments InvestmentsInMarketableEquitySecuritiesAndOtherInvestments	622408000	usd
CY2023Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	525087000	usd
CY2022Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	531941000	usd
CY2023Q4	us-gaap	Inventory Net Of Allowances Customer Advances And Progress Billings InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings	297211000	usd
CY2022Q4	us-gaap	Inventory Net Of Allowances Customer Advances And Progress Billings InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings	226811000	usd
CY2023Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	119933000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	97450000	usd
CY2023Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	6848000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	9313000	usd
CY2023Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1298000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1547000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	1849296000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	1679256000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	560314000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	503000000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	409183000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	429403000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	186480000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	186419000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1525194000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1560953000	usd
CY2023Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	187862000	usd
CY2022Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	178934000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	112194000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	161422000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	2113638000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1658046000	usd
CY2023Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	10578000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	6812000	usd
CY2023Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	0	usd
CY2022Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	646000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	232991000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	189132000	usd
CY2023Q4	us-gaap	Assets Assets	7187730000	usd
CY2022Q4	us-gaap	Assets Assets	6553377000	usd
CY2023Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	694521000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	574287000	usd
CY2023Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	396754000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	341296000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	7406000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	3766000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	64247000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	70007000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	66751000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	155813000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1229679000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1145169000	usd
CY2023Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	137275000	usd
CY2022Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	134921000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	32076000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	37506000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	600124000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	466275000	usd
CY2023Q4	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount Noncurrent SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent	40764000	usd
CY2022Q4	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount Noncurrent SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent	30845000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	376677000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	393626000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	745082000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	570547000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	3161677000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	2778889000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	24185000	usd
CY2022Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	21827000	usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	977000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	977000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	390438000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	7163128000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-54638000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-388591000	usd
CY2022Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	2198000	usd
CY2023Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	4368103000	usd
CY2022Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	4178334000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	3975737000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	3731383000	usd
CY2023Q4	us-gaap	Minority Interest MinorityInterest	26131000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	21278000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4001868000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7187730000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6553377000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	70434000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	353327000	usd
CY2023	ghc	Depreciation Depletion Amortization And Impairment DepreciationDepletionAmortizationAndImpairment	235169000	usd
CY2022	ghc	Depreciation Depletion Amortization And Impairment DepreciationDepletionAmortizationAndImpairment	261138000	usd
CY2021	ghc	Depreciation Depletion Amortization And Impairment DepreciationDepletionAmortizationAndImpairment	162225000	usd
CY2023	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	67734000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	67568000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	73752000	usd
CY2023	ghc	Net Periodic Benefit For Defined Benefit Pension Plans Excluding Curtailment NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingCurtailment	-101398000	usd
CY2022	ghc	Net Periodic Benefit For Defined Benefit Pension Plans Excluding Curtailment NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingCurtailment	-166611000	usd
CY2021	ghc	Net Periodic Benefit For Defined Benefit Pension Plans Excluding Curtailment NetPeriodicBenefitForDefinedBenefitPensionPlansExcludingCurtailment	-91898000	usd
CY2023	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	140671000	usd
CY2022	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-134011000	usd
CY2021	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	254844000	usd
CY2023	ghc	Credit Loss Expense And Provision For Other Receivables CreditLossExpenseAndProvisionForOtherReceivables	6045000	usd
CY2022	ghc	Credit Loss Expense And Provision For Other Receivables CreditLossExpenseAndProvisionForOtherReceivables	2958000	usd
CY2021	ghc	Credit Loss Expense And Provision For Other Receivables CreditLossExpenseAndProvisionForOtherReceivables	6824000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	6712000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	6121000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	5659000	usd
CY2023	ghc	Accretion Expense And Change In Fair Value AccretionExpenseAndChangeInFairValue	-6593000	usd
CY2022	ghc	Accretion Expense And Change In Fair Value AccretionExpenseAndChangeInFairValue	-5105000	usd
CY2021	ghc	Accretion Expense And Change In Fair Value AccretionExpenseAndChangeInFairValue	-4207000	usd
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1141000	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2023000	usd
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-179000	usd
CY2023	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	11811000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	24220000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	8554000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-20751000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-13503000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-4917000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	43765000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3844000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	65046000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-8231000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-45518000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	47430000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	62873000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	64324000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-4551000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	24695000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-33588000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	32397000	usd
CY2023	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	38497000	usd
CY2022	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	18219000	usd
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	7224000	usd
CY2023	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	6152000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	6766000	usd
CY2021	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-8689000	usd
CY2023	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-71471000	usd
CY2022	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-78471000	usd
CY2021	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-85147000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	12166000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	21275000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	14144000	usd
CY2023	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-3738000	usd
CY2022	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	4783000	usd
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1238000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	259875000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	235604000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	202426000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	93447000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	82684000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	162537000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	78149000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	130106000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	351882000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	61979000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	102040000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	65499000	usd
CY2023	us-gaap	Payments For Advance To Affiliate PaymentsForAdvanceToAffiliate	30000000	usd
CY2022	us-gaap	Payments For Advance To Affiliate PaymentsForAdvanceToAffiliate	0	usd
CY2021	us-gaap	Payments For Advance To Affiliate PaymentsForAdvanceToAffiliate	0	usd
CY2023	ghc	Payments To Acquire Equity Method Cost Method Investments And Other Investments PaymentsToAcquireEquityMethodCostMethodInvestmentsAndOtherInvestments	14050000	usd
CY2022	ghc	Payments To Acquire Equity Method Cost Method Investments And Other Investments PaymentsToAcquireEquityMethodCostMethodInvestmentsAndOtherInvestments	38894000	usd
CY2021	ghc	Payments To Acquire Equity Method Cost Method Investments And Other Investments PaymentsToAcquireEquityMethodCostMethodInvestmentsAndOtherInvestments	8531000	usd
CY2023	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	6162000	usd
CY2022	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	40518000	usd
CY2021	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	48036000	usd
CY2023	ghc	Net Proceeds From Sale Of Businesses Property Plant And Equipment And Other Assets NetProceedsFromSaleOfBusinessesPropertyPlantAndEquipmentAndOtherAssets	4294000	usd
CY2022	ghc	Net Proceeds From Sale Of Businesses Property Plant And Equipment And Other Assets NetProceedsFromSaleOfBusinessesPropertyPlantAndEquipmentAndOtherAssets	5057000	usd
CY2021	ghc	Net Proceeds From Sale Of Businesses Property Plant And Equipment And Other Assets NetProceedsFromSaleOfBusinessesPropertyPlantAndEquipmentAndOtherAssets	10295000	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2560000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1039000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-557000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-152975000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-184066000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-494635000	usd
CY2023	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	293387000	usd
CY2022	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	77299000	usd
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	70184000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	193160000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	71386000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	55683000	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	121744000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	14484000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	49645000	usd
CY2023	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-104244000	usd
CY2022	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	3000000	usd
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	134696000	usd
CY2023	ghc	Proceeds From Payments Of Vehicle Floor Plan Payable Net ProceedsFromPaymentsOfVehicleFloorPlanPayableNet	73732000	usd
CY2022	ghc	Proceeds From Payments Of Vehicle Floor Plan Payable Net ProceedsFromPaymentsOfVehicleFloorPlanPayableNet	26230000	usd
CY2021	ghc	Proceeds From Payments Of Vehicle Floor Plan Payable Net ProceedsFromPaymentsOfVehicleFloorPlanPayableNet	-10563000	usd
CY2023	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	30953000	usd
CY2022	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	30712000	usd
CY2021	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	30136000	usd
CY2023	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	5328000	usd
CY2022	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	5731000	usd
CY2021	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	30866000	usd
CY2023	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	5306000	usd
CY2022	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	2978000	usd
CY2021	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	639000	usd
CY2023	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	4988000	usd
CY2022	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	1200000	usd
CY2021	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	3508000	usd
CY2023	us-gaap	Proceeds From Contributed Capital ProceedsFromContributedCapital	3931000	usd
CY2022	us-gaap	Proceeds From Contributed Capital ProceedsFromContributedCapital	4918000	usd
CY2021	us-gaap	Proceeds From Contributed Capital ProceedsFromContributedCapital	3777000	usd
CY2023	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	usd
CY2022	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	3200000	usd
CY2021	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	usd
CY2023	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5162000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-6263000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	3410000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-99835000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18107000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	31027000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4394000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1842000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-3029000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	11459000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	31589000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-264211000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	190432000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	158843000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	423054000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	201891000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	190432000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	158843000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	39000000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	48000000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	39000000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	51000000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	37000000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	30000000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3766393000	usd
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	11928000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	353327000	usd
CY2021	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	3350000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	usd
CY2021	ghc	Equity Effectof Acquisitionof Redeemable Noncontrolling Interest EquityEffectofAcquisitionofRedeemableNoncontrollingInterest	0	usd
CY2021	ghc	Acquisitionof Redeemable Noncontrolling Interest AcquisitionofRedeemableNoncontrollingInterest	6617000	usd
CY2021	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-691000	usd
CY2021	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	-691000	usd
CY2021	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	549000	usd
CY2021	ghc	Temporary Equity Changein Redemption Value TemporaryEquityChangeinRedemptionValue	-35000	usd
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	555000	usd
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	30136000	usd
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	55683000	usd
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-939000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6598000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	368074000	usd
CY2021	ghc	Equityeffectofredemptionofredeemablenoncontrollinginterest Equityeffectofredemptionofredeemablenoncontrollinginterest	0	usd
CY2021	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	3508000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4411669000	usd
CY2021Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	14311000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	70434000	usd
CY2022	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	3900000	usd
CY2022	ghc	Temporary Equity Increase From Capital Contributions TemporaryEquityIncreaseFromCapitalContributions	1050000	usd
CY2022	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	512000	usd
CY2022	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	3200000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	usd
CY2022	ghc	Equity Effectof Acquisitionof Redeemable Noncontrolling Interest EquityEffectofAcquisitionofRedeemableNoncontrollingInterest	0	usd
CY2022	ghc	Acquisitionof Redeemable Noncontrolling Interest AcquisitionofRedeemableNoncontrollingInterest	2164000	usd
CY2022	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-29000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	1679256000	usd
CY2022Q4	us-gaap	Assets Assets	6553377000	usd
CY2022	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	-29000	usd
CY2022	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1905000	usd
CY2022	ghc	Temporary Equity Distribution To Noncontrolling Interests TemporaryEquityDistributionToNoncontrollingInterests	-750000	usd
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	30712000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	71386000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	341000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7596000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-635237000	usd
CY2022	ghc	Equityeffectofredemptionofredeemablenoncontrollinginterest Equityeffectofredemptionofredeemablenoncontrollinginterest	0	usd
CY2022	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	1200000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3752661000	usd
CY2022Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	21827000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	211704000	usd
CY2023	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	3520000	usd
CY2023	ghc	Purchase Of Equity From Noncontrolling Interest PurchaseOfEquityFromNoncontrollingInterest	-4988000	usd
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	usd
CY2023	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	2904000	usd
CY2023	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	2904000	usd
CY2023	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-14923000	usd
CY2023	ghc	Temporary Equity Changein Redemption Value TemporaryEquityChangeinRedemptionValue	15660000	usd
CY2023	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	3451000	usd
CY2023	ghc	Temporary Equity Distribution To Noncontrolling Interests TemporaryEquityDistributionToNoncontrollingInterests	-1241000	usd
CY2023	us-gaap	Dividends Common Stock DividendsCommonStock	30953000	usd
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	195002000	usd
CY2023	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1123000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6895000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	278186000	usd
CY2023	ghc	Equityeffectofredemptionofredeemablenoncontrollinginterest Equityeffectofredemptionofredeemablenoncontrollinginterest	0	usd
CY2023	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	14965000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4001868000	usd
CY2023Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	24185000	usd
CY2023	us-gaap	Nature Of Operations NatureOfOperations	ORGANIZATION AND NATURE OF OPERATIONS<div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%">Graham Holdings Company (the Company), is a diversified holding company whose operations include educational services, television broadcasting, manufacturing, healthcare, automotive dealerships and other businesses. </span></div><div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%">Through Kaplan, Inc. (Kaplan), the Company provides a wide variety of educational services to students, schools, colleges, universities and businesses, both domestically and outside the United States (U.S.), including academic preparation programs for international students, English-language programs, operations support services for pre-college, certificate, undergraduate and graduate programs, exam preparation for high school and graduate students and for professional certifications and licensures, career and academic advisement services to businesses, and operates a United Kingdom (U.K.) sixth-form college that prepares students for A-level examinations.</span></div><div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%">The Company’s television broadcasting segment owns and operates seven television broadcasting stations and provides social media management tools designed to connect newsrooms with their users. </span></div><div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%">The Company’s manufacturing companies comprise the ownership of a supplier of pressure treated wood, a manufacturer of electrical solutions, a manufacturer of lifting solutions, and a supplier of parts used in electric utilities and industrial systems. </span></div><div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%">The Company’s healthcare segment provides home health, hospice and palliative services, in-home specialty pharmacy infusion therapies, applied behavior analysis therapy, physician services for allergy, asthma and immunology patients, in-home aesthetics, and healthcare software-as-a-service technology. </span></div><div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%">The Company’s automotive business comprises eight dealerships and valet repair services. </span></div><div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%">The Company’s other businesses include an online art gallery and in-person art fair business; an online commerce platform featuring original art and designs on an array of consumer products; an owner and operator of websites; restaurants; a custom framing company; a marketing solutions provider; a customer data and analytics software company; </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:110%">Slate</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%"> and </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:110%">Foreign Policy</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%"> magazines; and a daily local news podcast and newsletter company.</span></div>
CY2022Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	531941000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	574287000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	341296000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1145169000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	2778889000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6553377000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	47430000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-33588000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	32397000	usd
CY2022	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	18219000	usd
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	7224000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	235604000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	202426000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:110%">Use of Estimates. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%"> The preparation of financial statements in conformity with GAAP requires management to make estimates and judgments that affect the amounts reported in the financial statements. Management bases its estimates and assumptions on historical experience and on various other factors that are believed to be reasonable under the circumstances. Due to the inherent uncertainty involved in making estimates, actual results reported in future periods may be affected by changes in those estimates. On an ongoing basis, the Company evaluates its estimates and assumptions.</span></div>
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:110%">Concentration of Credit Risk. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:110%"> Cash and cash equivalents are maintained with several financial institutions domestically and internationally. Deposits held with banks may exceed the amount of insurance provided on such deposits. Generally, these deposits may be redeemed upon demand and are maintained with financial institutions with investment-grade credit ratings. The Company routinely assesses the financial strength of significant customers, and this assessment, combined with the large number and geographical diversity of its customers, limits the Company’s concentration of risk with respect to receivables from contracts with customers.</span></div>
CY2023	ghc	Maximum Termof Contract MaximumTermofContract	P1Y
CY2023	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	5	business
CY2023	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	83300000	usd
CY2022	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	7	business
CY2022	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	143200000	usd
CY2021	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	6	business
CY2021	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	392400000	usd
CY2023Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	1200000	usd
CY2022Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	1700000	usd
CY2021Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	3000000	usd
CY2023Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	45000000	usd
CY2022Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	39700000	usd
CY2021Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	80600000	usd
CY2023	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	45200000	usd
CY2023	us-gaap	Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual	-2200000	usd
CY2023	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	4529817000	usd
CY2022	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	4252847000	usd
CY2021	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3827486000	usd
CY2023	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	218394000	usd
CY2022	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	87571000	usd
CY2021	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	376478000	usd
CY2023Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	5600000	usd
CY2022Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	7700000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	225971000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	270764000	usd
CY2023Q4	ghc	Equity Securities Fvni Accumulated Gross Unrealized Gain EquitySecuritiesFVNIAccumulatedGrossUnrealizedGain	464182000	usd
CY2022Q4	ghc	Equity Securities Fvni Accumulated Gross Unrealized Gain EquitySecuritiesFVNIAccumulatedGrossUnrealizedGain	363147000	usd
CY2023Q4	ghc	Equity Securities Fvni Accumulated Gross Unrealized Loss EquitySecuritiesFVNIAccumulatedGrossUnrealizedLoss	0	usd
CY2022Q4	ghc	Equity Securities Fvni Accumulated Gross Unrealized Loss EquitySecuritiesFVNIAccumulatedGrossUnrealizedLoss	23990000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	690153000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	609921000	usd
CY2023	ghc	Investments In Marketable Securities InvestmentsInMarketableSecurities	4600000	usd
CY2022	ghc	Investments In Marketable Securities InvestmentsInMarketableSecurities	42100000	usd
CY2023Q1	ghc	Portion Of2022 Investments In Marketable Equity Securities That Settled In January2023 PortionOf2022InvestmentsInMarketableEquitySecuritiesThatSettledInJanuary2023	1500000	usd
CY2021	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	48000000	usd
CY2023	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	13000000	usd
CY2022	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	58100000	usd
CY2021	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	46000000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	62000000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	102000000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	65500000	usd
CY2023	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	138067000	usd
CY2022	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-139589000	usd
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	243088000	usd
CY2023	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	5475000	usd
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-27786000	usd
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	17830000	usd
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	132592000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-111803000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	225258000	usd
CY2023Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	36900000	usd
CY2022Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	49100000	usd
CY2021Q3	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	6600000	usd
CY2021Q3	ghc	Number Of Equity Method Investments Impaired NumberOfEquityMethodInvestmentsImpaired	1	investment
CY2023Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	74000000	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	66700000	usd
CY2023	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	3100000	usd
CY2022	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	6900000	usd
CY2021	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	11800000	usd
CY2023	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	500000	usd
CY2022	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	1300000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	24667000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	21387000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	496172000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	504784000	usd
CY2023Q4	us-gaap	Other Receivables OtherReceivables	28915000	usd
CY2022Q4	us-gaap	Other Receivables OtherReceivables	27157000	usd
CY2023Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	525087000	usd
CY2022Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	531941000	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	154484000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	136186000	usd
CY2023Q4	ghc	Vehicle Floor Plan Facility Payable VehicleFloorPlanFacilityPayable	148300000	usd
CY2022Q4	ghc	Vehicle Floor Plan Facility Payable VehicleFloorPlanFacilityPayable	69756000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	154580000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	149823000	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	237157000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	218522000	usd
CY2023Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	694521000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	574287000	usd
CY2022Q4	us-gaap	Bank Overdrafts BankOverdrafts	500000	usd
CY2023Q4	us-gaap	Bank Overdrafts BankOverdrafts	500000	usd
CY2023Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	63884000	usd
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	68494000	usd
CY2023Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	15387000	usd
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	15718000	usd
CY2023Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	215283000	usd
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	140548000	usd
CY2023Q4	us-gaap	Inventory For Long Term Contracts Or Programs InventoryForLongTermContractsOrPrograms	2657000	usd
CY2022Q4	us-gaap	Inventory For Long Term Contracts Or Programs InventoryForLongTermContractsOrPrograms	2051000	usd
CY2023Q4	us-gaap	Inventory Net Of Allowances Customer Advances And Progress Billings InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings	297211000	usd
CY2022Q4	us-gaap	Inventory Net Of Allowances Customer Advances And Progress Billings InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings	226811000	usd
CY2023Q4	us-gaap	Land Land	98332000	usd
CY2022Q4	us-gaap	Land Land	86892000	usd
CY2023Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	238776000	usd
CY2022Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	203256000	usd
CY2023Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	521773000	usd
CY2022Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	457145000	usd
CY2023Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	225004000	usd
CY2022Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	226967000	usd
CY2023Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	36217000	usd
CY2022Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	35150000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1120102000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1009410000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	559788000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	506410000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	560314000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	503000000	usd
CY2023	us-gaap	Depreciation Depreciation	86100000	usd
CY2022	us-gaap	Depreciation Depreciation	73300000	usd
CY2021	us-gaap	Depreciation Depreciation	71400000	usd
CY2023	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	300000	usd
CY2021	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	2400000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	89994000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	91613000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	96078000	usd
CY2023	ghc	Short Termand Monthto Month Lease Cost ShortTermandMonthtoMonthLeaseCost	44457000	usd
CY2022	ghc	Short Termand Monthto Month Lease Cost ShortTermandMonthtoMonthLeaseCost	30754000	usd
CY2021	ghc	Short Termand Monthto Month Lease Cost ShortTermandMonthtoMonthLeaseCost	17724000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	23080000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	21265000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	20889000	usd
CY2023	us-gaap	Sublease Income SubleaseIncome	16035000	usd
CY2022	us-gaap	Sublease Income SubleaseIncome	14734000	usd
CY2021	us-gaap	Sublease Income SubleaseIncome	16918000	usd
CY2023	ghc	Lease Cost Netof Sublease Income LeaseCostNetofSubleaseIncome	141496000	usd
CY2022	ghc	Lease Cost Netof Sublease Income LeaseCostNetofSubleaseIncome	128898000	usd
CY2021	ghc	Lease Cost Netof Sublease Income LeaseCostNetofSubleaseIncome	117773000	usd
CY2023	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	800000	usd
CY2021	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	3900000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	94630000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	100207000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	105164000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	38967000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	81838000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	59409000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	409183000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	429403000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	64247000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	70007000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	376677000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	393626000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	440924000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	463633000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y7M6D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y8M12D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.052
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.049
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	84677000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	70072000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	62262000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	55687000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	45486000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	272850000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	591034000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	150110000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	440924000	usd
CY2023Q4	ghc	Lessee Operating Lease Lease Notyet Commenced Payments Due LesseeOperatingLeaseLeaseNotyetCommencedPaymentsDue	23300000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	5687000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2351000	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	989000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	317000	usd
CY2023	ghc	Finance Lease Fixed Cost FinanceLeaseFixedCost	6676000	usd
CY2022	ghc	Finance Lease Fixed Cost FinanceLeaseFixedCost	2668000	usd
CY2023	ghc	Finance Lease Variable Cost FinanceLeaseVariableCost	133000	usd
CY2022	ghc	Finance Lease Variable Cost FinanceLeaseVariableCost	85000	usd
CY2023	ghc	Total Finance Lease Cost TotalFinanceLeaseCost	6809000	usd
CY2022	ghc	Total Finance Lease Cost TotalFinanceLeaseCost	2753000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	17000000	usd
CY2021Q4	us-gaap	Goodwill Gross GoodwillGross	2029598000	usd
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	380016000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	1649582000	usd
CY2022	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-853000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	56163000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	102124000	usd
CY2022	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-41815000	usd
CY2022Q4	us-gaap	Goodwill Gross GoodwillGross	2043093000	usd
CY2023	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	989000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	317000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	10376000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	6237000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	20265000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	9182000	usd
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	22831000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	13835000	usd
CY2023Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	17357000	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	8697000	usd
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	6571000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	5362000	usd
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	23928000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	14059000	usd
CY2023Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y9M18D
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y
CY2023Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.063
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.046
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	17960000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Two FinanceLeaseLiabilityPaymentsDueInRollingYearTwo	5194000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Three FinanceLeaseLiabilityPaymentsDueInRollingYearThree	1702000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	22000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	11000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	24889000	usd
CY2023Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	961000	usd
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	23928000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	50000000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	58900000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	57900000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	37000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	29000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	20000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3000000	usd
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	482140000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1560953000	usd
CY2023	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-2217000	usd
CY2023	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	45968000	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	97999000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	18489000	usd
CY2023Q4	us-gaap	Goodwill Gross GoodwillGross	2105333000	usd
CY2023Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	580139000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1525194000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	521752000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	409558000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	112194000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	544128000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	382706000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	161422000	usd
CY2023Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	187862000	usd
CY2022Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	178934000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	219240000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	69499000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	421420000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	79764000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	52235000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	28207000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	299004000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	121734000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	449627000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	19752000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	36640000	usd
CY2023	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	56392000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5886000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	10044000	usd
CY2023	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	15930000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	17897000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2919000	usd
CY2023	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	14978000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	43535000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	43765000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	87300000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	37525000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-6180000	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	31345000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5676000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2513000	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	8189000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	11943000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-177000	usd
CY2022	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	11766000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	55144000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3844000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51300000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	20806000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	64356000	usd
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	85162000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4354000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-435000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	3919000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6094000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1125000	usd
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	7219000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	31254000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	65046000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96300000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	62791000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	25564000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	94422000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7477000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-331000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2238000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	10864000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	15628000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	1612000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4431000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3376000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-6873000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	87300000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51300000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	96300000	usd
CY2021	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	-17200000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2200000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	51666000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	53307000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	4160000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	3770000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	64381000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	61826000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	58424000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	64310000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	23850000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	19937000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	57564000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	59072000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	10705000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	2350000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	275247000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	269758000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	66298000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	62816000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	208949000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	206942000	usd
CY2023Q4	ghc	Deferred Tax Liabilities Unrealized Gains On Marketable Equity Securities DeferredTaxLiabilitiesUnrealizedGainsOnMarketableEquitySecurities	116396000	usd
CY2022Q4	ghc	Deferred Tax Liabilities Unrealized Gains On Marketable Equity Securities DeferredTaxLiabilitiesUnrealizedGainsOnMarketableEquitySecurities	87204000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	69358000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	81593000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	21612000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	19703000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	48230000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	49473000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	1962000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	2084000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	798495000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	666405000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	589546000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	459463000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	2000000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3897000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3004000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1898000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	135000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	300000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1061000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	778000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	45000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	165000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	185000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	604000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3263000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3897000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3004000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	400000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	usd
CY2023Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	30574000	usd
CY2022Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	11993000	usd
CY2023Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	811833000	usd
CY2022Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	726360000	usd
CY2023Q4	us-gaap	Debt Current DebtCurrent	66751000	usd
CY2022Q4	us-gaap	Debt Current DebtCurrent	155813000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	745082000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	570547000	usd
CY2023	ghc	Average Outstanding Debt Amount AverageOutstandingDebtAmount	745000000	usd
CY2022	ghc	Average Outstanding Debt Amount AverageOutstandingDebtAmount	689900000	usd
CY2023	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.061
CY2022	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.048
CY2023	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-56200000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-51200000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-30500000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	99100000	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	129000000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	32900000	usd
CY2023	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	3100000	usd
CY2022	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	6900000	usd
CY2021	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	11800000	usd
CY2023	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	500000	usd
CY2022	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	1300000	usd
CY2021	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	6600000	usd
CY2021	ghc	Number Of Equity Method Investments Impaired NumberOfEquityMethodInvestmentsImpaired	1	investment
CY2023Q4	ghc	Percentage Of Refundable Amounts Included Within Contract Liabilities PercentageOfRefundableAmountsIncludedWithinContractLiabilities	0.20
CY2022Q4	ghc	Percentage Of Refundable Amounts Included Within Contract Liabilities PercentageOfRefundableAmountsIncludedWithinContractLiabilities	0.18
CY2023Q4	us-gaap	Deferred Revenue DeferredRevenue	400347000	usd
CY2022Q4	us-gaap	Deferred Revenue DeferredRevenue	345387000	usd
CY2023	ghc	Deferred Revenue Period Increase Decrease Percentage DeferredRevenuePeriodIncreaseDecreasePercentage	0.16
CY2023	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	302200000	usd
CY2023	ghc	Deferred Revenue Recognizedof Refundable Prepaid Amounts DeferredRevenueRecognizedofRefundablePrepaidAmounts	54300000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	31647000	usd
CY2023	ghc	Contract Costs Capitalized Duringthe Period ContractCostsCapitalizedDuringthePeriod	98527000	usd
CY2023	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	-90839000	usd
CY2023	ghc	Changein Capitalized Contract Cost Other ChangeinCapitalizedContractCostOther	2299000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	41634000	usd
CY2021Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	26081000	usd
CY2022	ghc	Contract Costs Capitalized Duringthe Period ContractCostsCapitalizedDuringthePeriod	72606000	usd
CY2022	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	-66064000	usd
CY2022	ghc	Changein Capitalized Contract Cost Other ChangeinCapitalizedContractCostOther	-976000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	31647000	usd
CY2020Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	24363000	usd
CY2021	ghc	Contract Costs Capitalized Duringthe Period ContractCostsCapitalizedDuringthePeriod	61214000	usd
CY2021	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	-59116000	usd
CY2021	ghc	Changein Capitalized Contract Cost Other ChangeinCapitalizedContractCostOther	-380000	usd
CY2021Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	26081000	usd
CY2021	ghc	Dividends Paid Common Stock And Sharebased Compensation Cash DividendsPaidCommonStockAndSharebasedCompensationCash	30136000	usd
CY2023	us-gaap	Undistributed Earnings UndistributedEarnings	174335000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	27218	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	579.84
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	14630	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	609.02
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	11120	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	639.31
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	1079	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	602.40
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	29649	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	571.11
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	178105	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	619.44
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3060	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	426.86
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	0	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	175045	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	622.80
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	175045	shares
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y4M24D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	622.80
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	136415	shares
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y6M
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	678.29
CY2023	us-gaap	Net Income Loss NetIncomeLoss	205288000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	67079000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	352075000	usd
CY2023	ghc	Dividends Paid Common Stock And Sharebased Compensation Cash DividendsPaidCommonStockAndSharebasedCompensationCash	30953000	usd
CY2022	ghc	Dividends Paid Common Stock And Sharebased Compensation Cash DividendsPaidCommonStockAndSharebasedCompensationCash	30712000	usd
CY2022	us-gaap	Undistributed Earnings UndistributedEarnings	36367000	usd
CY2021	us-gaap	Undistributed Earnings UndistributedEarnings	321939000	usd
CY2023	ghc	Percentage Of Undistributed Earnings Allocated To Common Stockholders PercentageOfUndistributedEarningsAllocatedToCommonStockholders	0.9934
CY2022	ghc	Percentage Of Undistributed Earnings Allocated To Common Stockholders PercentageOfUndistributedEarningsAllocatedToCommonStockholders	0.9943
CY2021	ghc	Percentage Of Undistributed Earnings Allocated To Common Stockholders PercentageOfUndistributedEarningsAllocatedToCommonStockholders	0.9936
CY2023	ghc	Undistributed Earnings Allocated To Common Stockholders UndistributedEarningsAllocatedToCommonStockholders	173182000	usd
CY2022	ghc	Undistributed Earnings Allocated To Common Stockholders UndistributedEarningsAllocatedToCommonStockholders	36160000	usd
CY2021	ghc	Undistributed Earnings Allocated To Common Stockholders UndistributedEarningsAllocatedToCommonStockholders	319867000	usd
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	30756000	usd
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	30540000	usd
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	29946000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	203938000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	66700000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	349813000	usd
CY2023	ghc	Additional Undistributed Earnings Due To Dilutive Stock Options AdditionalUndistributedEarningsDueToDilutiveStockOptions	4000	usd
CY2022	ghc	Additional Undistributed Earnings Due To Dilutive Stock Options AdditionalUndistributedEarningsDueToDilutiveStockOptions	0	usd
CY2021	ghc	Additional Undistributed Earnings Due To Dilutive Stock Options AdditionalUndistributedEarningsDueToDilutiveStockOptions	5000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	203942000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	66700000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	349818000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4639000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4823000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4951000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4654000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4836000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4965000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	43.96
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.83
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	70.65
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	43.82
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	13.79
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	70.45
CY2023	ghc	Antidilutive Restricted Stock AntidilutiveRestrictedStock	12000	shares
CY2022	ghc	Antidilutive Restricted Stock AntidilutiveRestrictedStock	18000	shares
CY2021	ghc	Antidilutive Restricted Stock AntidilutiveRestrictedStock	13000	shares
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	6.60
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	6.32
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	6.04
CY2022	ghc	Number Of Multiemployer Plans Contributed To NumberOfMultiemployerPlansContributedTo	1	multiemployer_plan
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CY2022	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	1305000	usd
CY2021	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	usd
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CY2022	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	604000	usd
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CY2022	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	3368000	usd
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CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	19094000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	33500000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	32554000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	366561000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	88375000	usd
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CY2021	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	133380000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	368074000	usd
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CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	7	segment
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4414877000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3924493000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3185974000	usd
CY2023	ghc	Operating Income Before Amortization Of Intangible Assets And Impairment Of Goodwill And Other Long Lived Assets OperatingIncomeBeforeAmortizationOfIntangibleAssetsAndImpairmentOfGoodwillAndOtherLongLivedAssets	218498000	usd
CY2022	ghc	Operating Income Before Amortization Of Intangible Assets And Impairment Of Goodwill And Other Long Lived Assets OperatingIncomeBeforeAmortizationOfIntangibleAssetsAndImpairmentOfGoodwillAndOtherLongLivedAssets	271739000	usd
CY2021	ghc	Operating Income Before Amortization Of Intangible Assets And Impairment Of Goodwill And Other Long Lived Assets OperatingIncomeBeforeAmortizationOfIntangibleAssetsAndImpairmentOfGoodwillAndOtherLongLivedAssets	168185000	usd
CY2023	ghc	Amortization Of Intangible Assets And Impairment Of Goodwill And Other Long Lived Assets AmortizationOfIntangibleAssetsAndImpairmentOfGoodwillAndOtherLongLivedAssets	149105000	usd
CY2022	ghc	Amortization Of Intangible Assets And Impairment Of Goodwill And Other Long Lived Assets AmortizationOfIntangibleAssetsAndImpairmentOfGoodwillAndOtherLongLivedAssets	187841000	usd
CY2021	ghc	Amortization Of Intangible Assets And Impairment Of Goodwill And Other Long Lived Assets AmortizationOfIntangibleAssetsAndImpairmentOfGoodwillAndOtherLongLivedAssets	90810000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	69393000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	83898000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	77375000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-5183000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2837000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17914000	usd
CY2023	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-56179000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-51177000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-30534000	usd
CY2023	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-133812000	usd
CY2022	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-197939000	usd
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-109230000	usd
CY2023	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	138067000	usd
CY2022	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-139589000	usd
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	243088000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	19094000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	33500000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	32554000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	299004000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	121734000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	449627000	usd
CY2023	us-gaap	Depreciation Depreciation	86064000	usd
CY2022	us-gaap	Depreciation Depreciation	73297000	usd
CY2021	us-gaap	Depreciation Depreciation	71415000	usd
CY2023	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	33787000	usd
CY2022	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	32567000	usd
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	22991000	usd
CY2023	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	107286000	usd
CY2022	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	82402000	usd
CY2021	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	162769000	usd
CY2023Q4	ghc	Identifiable Assets IdentifiableAssets	4197459000	usd
CY2022Q4	ghc	Identifiable Assets IdentifiableAssets	4098991000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	690153000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	609921000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	186480000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	186419000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	2113638000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1658046000	usd
CY2023Q4	us-gaap	Assets Assets	7187730000	usd
CY2022Q4	us-gaap	Assets Assets	6553377000	usd
CY2023Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1031546000	usd
CY2023Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1104999000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1111519000	usd
CY2023Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1166813000	usd
CY2023Q1	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	727214000	usd
CY2023Q2	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	767854000	usd
CY2023Q3	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	781587000	usd
CY2023Q4	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	826279000	usd
CY2023Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	276676000	usd
CY2023Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	279090000	usd
CY2023Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	387044000	usd
CY2023Q4	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	299740000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	27656000	usd
CY2023Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	58055000	usd
CY2023Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-57112000	usd
CY2023Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	40794000	usd
CY2023Q1	us-gaap	Profit Loss ProfitLoss	52977000	usd
CY2023Q2	us-gaap	Profit Loss ProfitLoss	124171000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	-21134000	usd
CY2023Q4	us-gaap	Profit Loss ProfitLoss	55690000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	52272000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	122788000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-23031000	usd
CY2023Q4	us-gaap	Net Income Loss NetIncomeLoss	53259000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.91
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	25.96
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.02
CY2023Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.76
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.88
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	25.89
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.02
CY2023Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.72
CY2022Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	914721000	usd
CY2022Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	933302000	usd
CY2022Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1012438000	usd
CY2022Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1064032000	usd
CY2022Q1	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	615501000	usd
CY2022Q2	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	631828000	usd
CY2022Q3	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	694757000	usd
CY2022Q4	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	715632000	usd
CY2022Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	259249000	usd
CY2022Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	262146000	usd
CY2022Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	258149000	usd
CY2022Q4	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	403333000	usd
CY2022Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	39971000	usd
CY2022Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	39328000	usd
CY2022Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	59532000	usd
CY2022Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-54933000	usd
CY2022Q1	us-gaap	Profit Loss ProfitLoss	96566000	usd
CY2022Q2	us-gaap	Profit Loss ProfitLoss	-66615000	usd
CY2022Q3	us-gaap	Profit Loss ProfitLoss	33840000	usd
CY2022Q4	us-gaap	Profit Loss ProfitLoss	6643000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	95624000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	-67485000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	32780000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	6160000	usd
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	19.50
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-13.95
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.78
CY2022Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.28
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	19.45
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-13.95
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.76
CY2022Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.28
CY2023Q1	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-47244000	usd
CY2023Q1	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	4614000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	22811000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-83226000	usd
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-48235000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	62239000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-12381000	usd
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	48070000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	202526000	usd

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$GHC
Graham Holdings Co Stock $ghc

2023 Q4 Form 10-K Financial Statement

#000010488924000010 Filed on February 23, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GHC Graham Holdings Co Stock $ghc

2023 Q4 Form 10-K Financial Statement

#000010488924000010 Filed on February 23, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GHC
Graham Holdings Co Stock $ghc