$NHC
NATIONAL HEALTHCARE CORP Stock $nhc

$nhc Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000143774920022765 Filed on November 05, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q4
Revenue	$259.8M	$250.6M	$253.9M
YoY Change	2.34%	1.44%	1.99%
Cost Of Revenue	$147.4M	$149.1M	$151.4M
YoY Change	-2.67%	-2.05%	2.31%
Gross Profit	$112.5M	$101.6M	$102.5M
YoY Change	9.74%	7.04%	1.53%
Gross Profit Margin	43.29%	40.53%	40.37%
Selling, General & Admin	$9.522M	$10.32M	$9.916M
YoY Change	-3.97%	1.5%	-3.09%
% of Gross Profit	8.47%	10.16%	9.68%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$10.49M	$10.55M	$10.90M
YoY Change	-3.82%	-1.08%	1.96%
% of Gross Profit	9.32%	10.39%	10.64%
Operating Expenses	$76.04M	$83.34M	$85.50M
YoY Change	-11.07%	-4.82%	3.36%
Operating Profit	$36.43M	$7.022M	$16.50M
YoY Change	120.85%	6.91%	-4.05%
Interest Expense	$24.02M	$285.0K	$1.454M
YoY Change	1552.06%	-62.7%	-76.92%
% of Operating Profit	65.93%	4.06%	8.81%
Other Income/Expense, Net		$6.478M	$5.811M
YoY Change		-2.78%	-12.14%
Pretax Income	$37.05M	$13.26M	$18.44M
YoY Change	100.89%	-41.18%	-24.82%
Income Tax	$9.633M	$391.0K	$4.755M
% Of Pretax Income	26.0%	2.95%	25.78%
Net Earnings	$27.55M	$12.85M	$13.77M
YoY Change	100.07%	-33.98%	-24.14%
Net Earnings / Revenue	10.6%	5.13%	5.42%
Basic Earnings Per Share		$0.84	$0.91
Diluted Earnings Per Share	$1.792M	$0.84	$0.89
COMMON SHARES
Basic Shares Outstanding	15.36M	15.31M
Diluted Shares Outstanding		15.37M

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$470.2M	$203.0M	$70.91M
YoY Change	563.09%	152.24%	14.51%
Cash & Equivalents	$147.1M	$183.8M	$50.33M
Short-Term Investments	$323.1M	$19.25M	$20.58M
Other Short-Term Assets	$33.93M	$33.55M	$33.60M
YoY Change	1.0%	4.82%	3.35%
Inventory	$8.781M	$7.188M	$7.441M
Prepaid Expenses
Receivables	$89.67M	$84.60M	$92.98M
Other Receivables	$928.0K	$1.253M	$4.255M
Total Short-Term Assets	$456.8M	$422.2M	$341.1M
YoY Change	33.92%	20.23%	5.91%
LONG-TERM ASSETS
Property, Plant & Equipment	$520.3M	$530.6M	$535.4M
YoY Change	-2.82%	-1.67%	0.15%
Goodwill	$168.3M	$21.34M	$21.00M
YoY Change	701.6%	1.65%	0.0%
Intangibles	$0.00
YoY Change
Long-Term Investments	$40.78M	$36.89M	$39.19M
YoY Change	4.06%	-0.27%	21.1%
Other Assets	$385.1M	$385.9M	$410.2M
YoY Change	-6.12%	-7.32%	82.87%
Total Long-Term Assets	$905.4M	$916.6M	$945.6M
YoY Change	-4.25%	-4.13%	24.59%
TOTAL ASSETS
Total Short-Term Assets	$456.8M	$422.2M	$341.1M
Total Long-Term Assets	$905.4M	$916.6M	$945.6M
Total Assets	$1.362B	$1.339B	$1.287B
YoY Change	5.87%	2.41%	19.03%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$21.11M	$19.89M	$18.90M
YoY Change	11.69%	6.4%	-4.33%
Accrued Expenses	$142.6M	$115.7M	$123.6M
YoY Change	15.37%	3.48%	28.39%
Deferred Revenue	$51.25M	$51.25M	$0.00
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$0.00	$10.00M
YoY Change	-100.0%
Total Short-Term Liabilities	$281.2M	$259.7M	$194.8M
YoY Change	44.39%	43.4%	23.33%
LONG-TERM LIABILITIES
Long-Term Debt	$10.54M	$0.00	$0.00
YoY Change		-100.0%	-100.0%
Other Long-Term Liabilities	$28.38M	$32.67M	$21.23M
YoY Change	33.66%	137.37%	39.63%
Total Long-Term Liabilities	$28.38M	$32.67M	$21.23M
YoY Change	33.66%	-25.34%	-69.76%
TOTAL LIABILITIES
Total Short-Term Liabilities	$281.2M	$259.7M	$194.8M
Total Long-Term Liabilities	$28.38M	$32.67M	$21.23M
Total Liabilities	$563.9M	$561.6M	$507.6M
YoY Change	11.09%	4.93%	46.49%
SHAREHOLDERS EQUITY
Retained Earnings	$563.0M	$543.5M	$553.1M
YoY Change	1.8%	-0.7%	7.1%
Common Stock	$153.0K	$153.0K	$153.0K
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$795.2M	$774.0M	$778.6M
YoY Change
Total Liabilities & Shareholders Equity	$1.362B	$1.339B	$1.287B
YoY Change	5.87%	2.41%	19.03%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q4
OPERATING ACTIVITIES
Net Income	$27.55M	$12.85M	$13.77M
YoY Change	100.07%	-33.98%	-24.14%
Depreciation, Depletion And Amortization	$10.49M	$10.55M	$10.90M
YoY Change	-3.82%	-1.08%	1.96%
Cash From Operating Activities	$19.36M	$29.17M	$25.22M
YoY Change	-23.24%	-18.31%	18.2%
INVESTING ACTIVITIES
Capital Expenditures	-$4.156M	-$5.200M	-$6.730M
YoY Change	-38.25%	-8.47%	-4.84%
Acquisitions
YoY Change
Other Investing Activities	-$44.45M	$8.494M	$2.288M
YoY Change	-2042.7%	17.52%	348.63%
Cash From Investing Activities	-$48.61M	$3.294M	-$4.442M
YoY Change	994.21%	112.93%	-32.31%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-8.370M	-7.128M	-27.85M
YoY Change	-69.95%	-79.68%	1.0%
NET CHANGE
Cash From Operating Activities	19.36M	29.17M	25.22M
Cash From Investing Activities	-48.61M	3.294M	-4.442M
Cash From Financing Activities	-8.370M	-7.128M	-27.85M
Net Change In Cash	-37.62M	25.34M	-7.072M
YoY Change	431.9%	1064.48%	-44.75%
FREE CASH FLOW
Cash From Operating Activities	$19.36M	$29.17M	$25.22M
Capital Expenditures	-$4.156M	-$5.200M	-$6.730M
Free Cash Flow	$23.51M	$34.37M	$31.95M
YoY Change	-26.4%	-16.96%	12.47%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	15359488
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	45000000
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	45000000
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	15359488
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15359488
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	15332206
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15332206
CY2020Q3	nhc	Number Of Independent Living Facilities NumberOfIndependentLivingFacilities	5	pure
CY2020Q3	nhc	Number Of Geriatric Psychiatric Hospitals NumberOfGeriatricPsychiatricHospitals	1	pure
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	pure
CY2019Q4	us-gaap	Contract With Customer Refund Liability ContractWithCustomerRefundLiability	7455000	USD
CY2019Q4	us-gaap	Continuing Care Retirement Communities Advance Fees Obligation For Future Services Amount ContinuingCareRetirementCommunitiesAdvanceFeesObligationForFutureServicesAmount	2035000	USD
CY2020Q3	nhc	Proceeds From Government Assistance Cares Act ProceedsFromGovernmentAssistanceCaresAct	58184000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	69573000	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y
CY2020Q3	nhc	Income Tax Reconciliation Expiration Of Statute Of Limitations IncomeTaxReconciliationExpirationOfStatuteOfLimitations	2234000	USD
CY2019Q3	nhc	Income Tax Reconciliation Expiration Of Statute Of Limitations IncomeTaxReconciliationExpirationOfStatuteOfLimitations	2064000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	227383000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	235090000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	697149000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	706465000	USD
CY2020Q3	nhc	Other Revenues OtherRevenues	11111000	USD
CY2019Q3	nhc	Other Revenues OtherRevenues	11977000	USD
	nhc	Other Revenues OtherRevenues	34463000	USD
	nhc	Other Revenues OtherRevenues	36038000	USD
CY2020Q3	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	12132000	USD
CY2019Q3	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	0	USD
	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	36780000	USD
	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	0	USD
CY2020Q3	us-gaap	Revenues Revenues	250626000	USD
CY2019Q3	us-gaap	Revenues Revenues	247067000	USD
	us-gaap	Revenues Revenues	768392000	USD
	us-gaap	Revenues Revenues	742503000	USD
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	151564000	USD
CY2019Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	152175000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	455947000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	441441000	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	70887000	USD
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	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20936000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-241000	USD
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	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	16096000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	13259000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	22543000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	15374000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	69573000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	391000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3167000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	800000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15284000	USD
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	us-gaap	Profit Loss ProfitLoss	14574000	USD
	us-gaap	Profit Loss ProfitLoss	54289000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	19000	USD
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CY2019Q3	us-gaap	Interest Expense InterestExpense	764000	USD
	us-gaap	Interest Expense InterestExpense	1150000	USD
	us-gaap	Interest Expense InterestExpense	2644000	USD
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	us-gaap	Costs And Expenses CostsAndExpenses	733016000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	709962000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	7022000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	6568000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	35376000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	32541000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6478000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-152000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	12849000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19461000	USD
	us-gaap	Net Income Loss NetIncomeLoss	14321000	USD
	us-gaap	Net Income Loss NetIncomeLoss	54441000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.94
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.57
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	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.93
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.55
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15310754
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CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15371311
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CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.52
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	us-gaap	Profit Loss ProfitLoss	14574000	USD
	us-gaap	Profit Loss ProfitLoss	54289000	USD
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CY2019Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	155000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	577000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1456000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	403000	USD
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	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16492000	USD
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CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	183765000	USD
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CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	10623000	USD
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CY2020Q3	us-gaap	Inventory Net InventoryNet	7188000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	7441000	USD
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CY2020Q3	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	1253000	USD
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CY2020Q3	us-gaap	Assets Current AssetsCurrent	422228000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	341053000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1041832000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1017204000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	511216000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	481774000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	530616000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	535430000	USD
CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1730000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1732000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	122791000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	126830000	USD
CY2020Q3	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	5503000	USD
CY2019Q4	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	5124000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	185003000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	202909000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	21341000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	20995000	USD
CY2020Q3	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	12679000	USD
CY2019Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	13384000	USD
CY2020Q3	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	36888000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	39191000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	385935000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	410165000	USD
CY2020Q3	us-gaap	Assets Assets	1338779000	USD
CY2019Q4	us-gaap	Assets Assets	1286648000	USD
CY2020Q3	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	19890000	USD
CY2019Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	18903000	USD
CY2020Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4357000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4166000	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	25146000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	24243000	USD
CY2020Q3	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	60690000	USD
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	69826000	USD
CY2020Q3	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	15642000	USD
CY2019Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	15108000	USD
CY2020Q3	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	29873000	USD
CY2019Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	29520000	USD
CY2020Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	23431000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	15029000	USD
CY2020Q3	nhc	Provider Relief Funds ProviderReliefFunds	21404000	USD
CY2019Q4	nhc	Provider Relief Funds ProviderReliefFunds	0	USD
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	51253000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	0	USD
CY2020Q3	us-gaap	Dividends Payable Current DividendsPayableCurrent	7987000	USD
CY2019Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	7968000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	10000000	USD
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	259673000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	194763000	USD
CY2020Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	11671000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	14963000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	159857000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	178666000	USD
CY2020Q3	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	76080000	USD
CY2019Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	66491000	USD
CY2020Q3	us-gaap	Contract With Customer Refund Liability Noncurrent ContractWithCustomerRefundLiabilityNoncurrent	7462000	USD
CY2019Q4	us-gaap	Contract With Customer Refund Liability Noncurrent ContractWithCustomerRefundLiabilityNoncurrent	7455000	USD
CY2020Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	14185000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	24012000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	32674000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	21229000	USD
CY2020Q3	us-gaap	Liabilities Liabilities	561602000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	507579000	USD
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	153000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	153000	USD
CY2020Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	225616000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	222787000	USD
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	543460000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	553093000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	4731000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	2560000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	773960000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	778593000	USD
CY2020Q3	us-gaap	Minority Interest MinorityInterest	3217000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	476000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	777177000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	779069000	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1338779000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1286648000	USD
	us-gaap	Profit Loss ProfitLoss	14574000	USD
	us-gaap	Profit Loss ProfitLoss	54289000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	31531000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	31515000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8448000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7548000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	10050000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	3884000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-40580000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	16096000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	135000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	117000	USD
	nhc	Gain Loss On Acquisition Of Equity Method Investment GainLossOnAcquisitionOfEquityMethodInvestment	1707000	USD
	nhc	Gain Loss On Acquisition Of Equity Method Investment GainLossOnAcquisitionOfEquityMethodInvestment	1975000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	10405000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-6187000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1807000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1448000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-9604000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-5234000	USD
	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-0	USD
	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	2330000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-344000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	304000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-2992000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-169000	USD
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	207000	USD
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-1066000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	-9545000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	-8121000	USD
	nhc	Increase Decrease In Due To Third Party Payors IncreaseDecreaseInDueToThirdPartyPayors	388000	USD
	nhc	Increase Decrease In Due To Third Party Payors IncreaseDecreaseInDueToThirdPartyPayors	-197000	USD
	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	9977000	USD
	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	2241000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	21404000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	0	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	51253000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	0	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	7984000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	8345000	USD
	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	11445000	USD
	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-674000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	183900000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	74884000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	17717000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	19670000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	6648000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	15589000	USD
	nhc	Payments For Proceeds From Unconsolidated Investments PaymentsForProceedsFromUnconsolidatedInvestments	305000	USD
	nhc	Payments For Proceeds From Unconsolidated Investments PaymentsForProceedsFromUnconsolidatedInvestments	197000	USD
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	425000	USD
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	5462000	USD
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	1572000	USD
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	1010000	USD
	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	19754000	USD
	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	11187000	USD
	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	28004000	USD
	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	41272000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-15273000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-9823000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	40000000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	0	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	50000000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	25000000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3101000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2920000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	23935000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	23240000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	2488000	USD
	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	566000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1075000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1383000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	53000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	872000	USD
	nhc	Entrance Fee Deposits Refunds EntranceFeeDepositsRefunds	7000	USD
	nhc	Entrance Fee Deposits Refunds EntranceFeeDepositsRefunds	-684000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-33519000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-51899000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	135108000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	13162000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	61010000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	54920000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	196118000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	68082000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	743355000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	28522000	USD
CY2020Q2	nhc	Noncontrolling Interest Increase From Capital Contribution NoncontrollingInterestIncreaseFromCapitalContribution	244000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3780000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	823000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	549000	USD
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	7986000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	769287000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	12868000	USD
CY2020Q3	nhc	Noncontrolling Interest Increase From Capital Contribution NoncontrollingInterestIncreaseFromCapitalContribution	1963000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	403000	USD
CY2020Q1	nhc	Noncontrolling Interest Increase From Capital Contribution NoncontrollingInterestIncreaseFromCapitalContribution	281000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2012000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	466000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	400000	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	53000	USD
CY2020Q1	us-gaap	Dividends Common Stock DividendsCommonStock	7980000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	183765000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	59261000	USD
CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	12353000	USD
CY2019Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	8821000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	196118000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	68082000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	779069000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	-26816000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	518000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	126000	USD
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	7988000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	777177000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	734457000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	21231000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2548000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	424000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	579000	USD
CY2019Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	872000	USD
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	7652000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	750715000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	13682000	USD
CY2019Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	17000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2345000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	684000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	804000	USD
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	7966000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	760247000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	19376000	USD
CY2019Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	549000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	583000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	340000	USD
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	7966000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	772031000	USD
CY2020Q3	nhc	Number Of Skilled Nursing Centers NumberOfSkilledNursingCenters	76	pure
CY2020Q3	nhc	Number Of Beds NumberOfBeds	9633	pure
CY2020Q3	nhc	Number Of Assisted Living Facilities NumberOfAssistedLivingFacilities	24	pure
CY2020Q3	nhc	Number Of Homecare Programs NumberOfHomecarePrograms	35	pure
CY2020Q3	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	10	pure
	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"><i>Estimates and Assumptions</i></p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt 14.4pt;text-align:justify;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify; text-indent: 36pt;">The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates and could cause our reported net income to vary significantly from period to period, including but <em style="font: inherit;">not</em> limited to, the potential future effects of the novel coronavirus (“COVID-<em style="font: inherit;">19”</em>).</p>
CY2020Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1463000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3538000	USD
CY2019Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	827000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2866000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	6295000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4451000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	18991000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10921000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	24535000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7170000	USD
CY2020Q3	us-gaap	Contract With Customer Refund Liability ContractWithCustomerRefundLiability	7462000	USD
CY2020Q3	us-gaap	Continuing Care Retirement Communities Advance Fees Obligation For Future Services Amount ContinuingCareRetirementCommunitiesAdvanceFeesObligationForFutureServicesAmount	2035000	USD
CY2020Q2	nhc	Proceeds From Government Assistance Cares Act ProceedsFromGovernmentAssistanceCaresAct	58184000	USD
CY2020Q3	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	12132000	USD
	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	36780000	USD
CY2020Q3	nhc	Provider Relief Funds ProviderReliefFunds	21404000	USD
	nhc	Proceeds From Medicare Accelerated And Advance Payment Program ProceedsFromMedicareAcceleratedAndAdvancePaymentProgram	51253000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	227383000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	235090000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	697149000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	706465000	USD
CY2020Q3	nhc	Revenue From Contract With Customer Including Assessed Tax Percentage RevenueFromContractWithCustomerIncludingAssessedTaxPercentage	1	pure
CY2019Q3	nhc	Revenue From Contract With Customer Including Assessed Tax Percentage RevenueFromContractWithCustomerIncludingAssessedTaxPercentage	1	pure
	nhc	Revenue From Contract With Customer Including Assessed Tax Percentage RevenueFromContractWithCustomerIncludingAssessedTaxPercentage	1	pure
	nhc	Revenue From Contract With Customer Including Assessed Tax Percentage RevenueFromContractWithCustomerIncludingAssessedTaxPercentage	1	pure
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	51253000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	0	USD
	nhc	Proceeds From Government Assistance Medicare Accelerated And Advance Payment Program ProceedsFromGovernmentAssistanceMedicareAcceleratedAndAdvancePaymentProgram	51253000	USD
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	51253000	USD
CY2020Q3	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	5646000	USD
CY2019Q3	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	5678000	USD
	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	16972000	USD
	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	16963000	USD
CY2020Q3	nhc	Management And Accounting Services Fees Revenue ManagementAndAccountingServicesFeesRevenue	4052000	USD
CY2019Q3	nhc	Management And Accounting Services Fees Revenue ManagementAndAccountingServicesFeesRevenue	4520000	USD
	nhc	Management And Accounting Services Fees Revenue ManagementAndAccountingServicesFeesRevenue	12651000	USD
	nhc	Management And Accounting Services Fees Revenue ManagementAndAccountingServicesFeesRevenue	13567000	USD
CY2020Q3	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	1294000	USD
CY2019Q3	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	1528000	USD
	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	4074000	USD
	us-gaap	Insurance Services Revenue InsuranceServicesRevenue	4667000	USD
CY2020Q3	nhc	Miscellaneous Revenue MiscellaneousRevenue	119000	USD
CY2019Q3	nhc	Miscellaneous Revenue MiscellaneousRevenue	251000	USD
	nhc	Miscellaneous Revenue MiscellaneousRevenue	766000	USD
	nhc	Miscellaneous Revenue MiscellaneousRevenue	841000	USD
CY2020Q3	nhc	Other Revenues OtherRevenues	11111000	USD
CY2019Q3	nhc	Other Revenues OtherRevenues	11977000	USD
	nhc	Other Revenues OtherRevenues	34463000	USD
	nhc	Other Revenues OtherRevenues	36038000	USD
CY2020Q3	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	5505000	USD
CY2019Q3	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	5482000	USD
	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	16514000	USD
	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	16450000	USD
CY2020Q3	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	141000	USD
CY2019Q3	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	196000	USD
	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	458000	USD
	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	513000	USD
CY2020Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	5646000	USD
CY2019Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	5678000	USD
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	16972000	USD
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	16963000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3019000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2747000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8448000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7548000	USD
CY2020Q3	nhc	Dividends And Other Net Realized Gains And Losses On Sales Of Securities DividendsAndOtherNetRealizedGainsAndLossesOnSalesOfSecurities	2084000	USD
CY2019Q3	nhc	Dividends And Other Net Realized Gains And Losses On Sales Of Securities DividendsAndOtherNetRealizedGainsAndLossesOnSalesOfSecurities	2049000	USD
	nhc	Dividends And Other Net Realized Gains And Losses On Sales Of Securities DividendsAndOtherNetRealizedGainsAndLossesOnSalesOfSecurities	5997000	USD
	nhc	Dividends And Other Net Realized Gains And Losses On Sales Of Securities DividendsAndOtherNetRealizedGainsAndLossesOnSalesOfSecurities	5911000	USD
CY2020Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	1375000	USD
CY2019Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	1867000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	4426000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	5502000	USD
CY2020Q3	nhc	Gain Loss On Acquisition Of Equity Method Investment GainLossOnAcquisitionOfEquityMethodInvestment	0	USD
CY2019Q3	nhc	Gain Loss On Acquisition Of Equity Method Investment GainLossOnAcquisitionOfEquityMethodInvestment	0	USD
	nhc	Gain Loss On Acquisition Of Equity Method Investment GainLossOnAcquisitionOfEquityMethodInvestment	1707000	USD
	nhc	Gain Loss On Acquisition Of Equity Method Investment GainLossOnAcquisitionOfEquityMethodInvestment	1975000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6478000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6663000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20578000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20936000	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	pure
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	227383000	USD
CY2020Q3	nhc	Other Revenues OtherRevenues	11111000	USD
CY2020Q3	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	12132000	USD
CY2020Q3	us-gaap	Revenues Revenues	250626000	USD
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	151564000	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	70887000	USD
CY2020Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	10320000	USD
CY2020Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10548000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	285000	USD
CY2020Q3	us-gaap	Costs And Expenses CostsAndExpenses	243604000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	7022000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6478000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-241000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	13259000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	235090000	USD
CY2019Q3	nhc	Other Revenues OtherRevenues	11977000	USD
CY2019Q3	us-gaap	Revenues Revenues	247067000	USD
CY2019Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	152175000	USD
CY2019Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	66730000	USD
CY2019Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	10167000	USD
CY2019Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10663000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	764000	USD
CY2019Q3	us-gaap	Costs And Expenses CostsAndExpenses	240499000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	6568000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6663000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	9312000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	22543000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	697149000	USD
	nhc	Other Revenues OtherRevenues	34463000	USD
	nhc	Government Assistance Stimulus Income Cares Act GovernmentAssistanceStimulusIncomeCaresAct	36780000	USD
	us-gaap	Revenues Revenues	768392000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	455947000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	213416000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	30972000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	31531000	USD
	us-gaap	Interest Expense InterestExpense	1150000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	733016000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	35376000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20578000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-40580000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	15374000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	706465000	USD
	nhc	Other Revenues OtherRevenues	36038000	USD
	us-gaap	Revenues Revenues	742503000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	441441000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	203760000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	30602000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20936000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	16096000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	31515000	USD
	us-gaap	Interest Expense InterestExpense	2644000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	709962000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	32541000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	5200000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	35354000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	5200000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	35074000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	5200000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	34573000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	2167000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	34390000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	34228000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	48500000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	17767000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	222119000	USD
CY2020Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	1739000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	37116000	USD
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	16028000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	185003000	USD
CY2020Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4357000	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	25146000	USD
CY2020Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	11671000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	159857000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15310754
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15275709
	us-gaap	Net Income Loss NetIncomeLoss	14321000	USD
	us-gaap	Net Income Loss NetIncomeLoss	54441000	USD
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15368775
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15304235
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15267250
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	12849000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19461000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.94
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.57
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15310754
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15275709
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15304235
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15267250
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	60557
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	97908
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	64540
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	83058
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15371311
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15373617
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15350308
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	12849000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19461000	USD
	us-gaap	Net Income Loss NetIncomeLoss	14321000	USD
	us-gaap	Net Income Loss NetIncomeLoss	54441000	USD
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.27
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.93
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.55
CY2020Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	166227000	USD
CY2020Q3	us-gaap	Available For Sale Securities AvailableForSaleSecurities	253913000	USD
CY2019Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	174342000	USD
CY2019Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	299859000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	22860000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	22795000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	15726000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	15767000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	82046000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	85640000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	88314000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	90408000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	31145000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	33605000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	40126000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	41231000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	136051000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	142040000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	144166000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	147406000	USD
CY2020Q3	nhc	Equity Securities Fv Ni Gross Unrealized Gain EquitySecuritiesFvNiGrossUnrealizedGain	81804000	USD
CY2019Q4	nhc	Equity Securities Fv Ni Gross Unrealized Gain EquitySecuritiesFvNiGrossUnrealizedGain	122290000	USD
CY2020Q3	nhc	Equity Securities Fv Ni Gross Unrealized Loss EquitySecuritiesFvNiGrossUnrealizedLoss	107000	USD
CY2019Q4	nhc	Equity Securities Fv Ni Gross Unrealized Loss EquitySecuritiesFvNiGrossUnrealizedLoss	13000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-241000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-40580000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	9312000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	16096000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	6727000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3407000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	738000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	167000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	28004000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	41272000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	135000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	117000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	-0	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	10000000	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	518000	USD
CY2019Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	340000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1807000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1448000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	3024000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0085	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0230	pure
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.202	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.174	pure
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P2Y2M12D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P2Y3M18D
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0292	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0273	pure
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1163381
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	71.16
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	53316
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	77.89
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	346168
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	71.24
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	102124
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	75.74
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	71.57
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	85000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	72.94
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	785529
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	68.35
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	18000	USD
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	33573
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	62.46
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	3000
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	72.94
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	851080
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	72.12
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	66000	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	215456
CY2020Q3	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
CY2020Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	1.48
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.030	pure
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.052	pure
CY2019Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.14	pure
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.220	pure
	nhc	Income Tax Reconciliation Expiration Of Statute Of Limitations IncomeTaxReconciliationExpirationOfStatuteOfLimitations	2234000	USD
	nhc	Income Tax Reconciliation Expiration Of Statute Of Limitations IncomeTaxReconciliationExpirationOfStatuteOfLimitations	2064000	USD
CY2020Q3	us-gaap	Self Insurance Reserve SelfInsuranceReserve	105953000	USD
CY2019Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	96011000	USD

Files In Submission

Name	View Source	Status
0001437749-20-022765-index-headers.html	Edgar Link	pending
0001437749-20-022765-index.html	Edgar Link	pending
0001437749-20-022765.txt	Edgar Link	pending
0001437749-20-022765-xbrl.zip	Edgar Link	pending
ex_210241.htm	Edgar Link	pending
ex_210242.htm	Edgar Link	pending
ex_210243.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
nhc-20200930.xsd	Edgar Link	pending
nhc-20200930_cal.xml	Edgar Link	unprocessable
nhc-20200930_def.xml	Edgar Link	unprocessable
nhc-20200930_lab.xml	Edgar Link	unprocessable
nhc-20200930_pre.xml	Edgar Link	unprocessable
nhc20200930_10q.htm	Edgar Link	pending
nhc20200930_10qimg001.jpg	Edgar Link	pending
nhc20200930_10q_htm.xml	Edgar Link	completed
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$NHC
NATIONAL HEALTHCARE CORP Stock $nhc

2020 Q4 Form 10-Q Financial Statement

#000143774920022765 Filed on November 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NHC NATIONAL HEALTHCARE CORP Stock $nhc

2020 Q4 Form 10-Q Financial Statement

#000143774920022765 Filed on November 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NHC
NATIONAL HEALTHCARE CORP Stock $nhc