$NRP
NATURAL RESOURCE PARTNERS LP Stock $nrp

$nrp Overview Financials Valuation SEC Filings Company Website

2020 Q3 Form 10-Q Financial Statement

#000117148620000032 Filed on August 07, 2020

Income Statement

Concept	2020 Q3	2020 Q2	2019 Q2
Revenue	$29.93M	$30.55M	$81.22M
YoY Change	-48.04%	-62.39%	16.95%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$9.415M	$11.84M	$16.66M
YoY Change	-8.12%	-28.92%	46.1%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$2.111M	$2.062M	$3.970M
YoY Change	-37.62%	-48.06%	-26.15%
% of Gross Profit
Operating Expenses	$12.46M	$146.2M	$20.63M
YoY Change	-11.73%	608.77%	23.09%
Operating Profit	$17.47M	-$115.2M	$60.84M
YoY Change	-64.77%	-289.29%	15.1%
Interest Expense	$10.25M	$10.33M	$12.46M
YoY Change	-1.7%	-17.08%	-29.76%
% of Operating Profit	58.69%		20.47%
Other Income/Expense, Net	$10.25M	$10.33M	$41.74M
YoY Change	-1.7%	-75.25%	135.36%
Pretax Income	$7.216M	-$125.5M	$19.11M
YoY Change	-81.57%	-756.87%	-45.57%
Income Tax
% Of Pretax Income
Net Earnings	$7.216M	-$125.5M	$19.35M
YoY Change	-81.58%	-748.55%	-48.04%
Net Earnings / Revenue	24.11%	-410.86%	23.82%
Basic Earnings Per Share
Diluted Earnings Per Share	$588.5K	-$10.24M	$1.445M
COMMON SHARES
Basic Shares Outstanding	12.26M shares	12.26M shares	12.26M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2020 Q3	2020 Q2	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$115.6M	$110.8M	$70.85M
YoY Change	16.0%	56.43%	33.68%
Cash & Equivalents	$115.6M	$110.8M	$70.85M
Short-Term Investments
Other Short-Term Assets	$3.972M	$4.931M	$21.87M
YoY Change	-76.11%	-77.46%	305.04%
Inventory
Prepaid Expenses
Receivables	$17.46M	$22.04M	$28.55M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$137.0M	$137.8M	$121.3M
YoY Change	-4.66%	13.63%	-3.64%
LONG-TERM ASSETS
Property, Plant & Equipment	$489.9M	$492.9M	$825.0K
YoY Change	64188.45%	59641.94%	-98.28%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$256.8M	$252.4M	$251.1M
YoY Change	-0.48%	0.51%	2.29%
Other Assets	$7.447M	$8.554M	$6.806M
YoY Change	18.7%	25.68%	10.06%
Total Long-Term Assets	$805.6M	$805.8M	$1.098B
YoY Change	-26.78%	-26.63%	-14.58%
TOTAL ASSETS
Total Short-Term Assets	$137.0M	$137.8M	$121.3M
Total Long-Term Assets	$805.6M	$805.8M	$1.098B
Total Assets	$942.6M	$943.6M	$1.219B
YoY Change	-24.23%	-22.62%	-13.61%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.372M	$1.228M	$1.211M
YoY Change	-13.76%	1.4%	-84.48%
Accrued Expenses	$6.859M	$6.027M	$6.856M
YoY Change	-5.91%	-12.09%	-46.64%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$39.07M	$45.79M	$46.04M
YoY Change	-14.67%	-0.55%	-38.77%
Total Short-Term Liabilities	$67.61M	$63.92M	$68.55M
YoY Change	-8.95%	-6.74%	-40.2%
LONG-TERM LIABILITIES
Long-Term Debt	$452.4M	$452.1M	$498.0M
YoY Change	-7.74%	-9.22%	-31.13%
Other Long-Term Liabilities	$5.020M	$4.901M	$4.731M
YoY Change	3.65%	3.59%	98.36%
Total Long-Term Liabilities	$457.4M	$457.0M	$502.8M
YoY Change	-7.63%	-9.1%	-30.7%
TOTAL LIABILITIES
Total Short-Term Liabilities	$67.61M	$63.92M	$68.55M
Total Long-Term Liabilities	$457.4M	$457.0M	$502.8M
Total Liabilities	$576.0M	$574.4M	$614.6M
YoY Change	-6.04%	-6.55%	-30.12%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$366.5M	$369.2M	$607.8M
YoY Change
Total Liabilities & Shareholders Equity	$942.6M	$943.6M	$1.219B
YoY Change	-24.23%	-22.62%	-13.61%

Cashflow Statement

Concept	2020 Q3	2020 Q2	2019 Q2
OPERATING ACTIVITIES
Net Income	$7.216M	-$125.5M	$19.35M
YoY Change	-81.58%	-748.55%	-48.04%
Depreciation, Depletion And Amortization	$2.111M	$2.062M	$3.970M
YoY Change	-37.62%	-48.06%	-26.15%
Cash From Operating Activities	$24.32M	$19.94M	$53.59M
YoY Change	-41.21%	-62.8%	-1.3%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	$332.0K	$365.0K	$654.0K
YoY Change	-94.85%	-44.19%	-140.88%
Cash From Investing Activities	$332.0K	$365.0K	$654.0K
YoY Change	-94.85%	-44.19%	-140.88%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-19.91M	-9.978M	-98.18M
YoY Change	-7.1%	-89.84%	369.76%
NET CHANGE
Cash From Operating Activities	24.32M	19.94M	53.59M
Cash From Investing Activities	332.0K	365.0K	654.0K
Cash From Financing Activities	-19.91M	-9.978M	-98.18M
Net Change In Cash	4.745M	10.32M	-43.93M
YoY Change	-82.02%	-123.5%	-238.15%
FREE CASH FLOW
Cash From Operating Activities	$24.32M	$19.94M	$53.59M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Entity Central Index Key EntityCentralIndexKey	0001171486
	dei	Document Period End Date DocumentPeriodEndDate	2020-06-30
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	12261199	shares
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-31465
	dei	Entity Registrant Name EntityRegistrantName	NATURAL RESOURCE PARTNERS LP
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	35-2164875
	dei	Entity Address Address Line1 EntityAddressAddressLine1	1201 Louisiana Street, Suite 3400
	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77002
	dei	City Area Code CityAreaCode	713
	dei	Local Phone Number LocalPhoneNumber	751-7507
	dei	Security12b Title Security12bTitle	Common Units representing limited partner interests
	dei	Trading Symbol TradingSymbol	NRP
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	110828000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	98265000	USD
CY2020Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	22044000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	30869000	USD
CY2020Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	4931000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1244000	USD
CY2020Q2	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	1706000	USD
CY2020Q2	us-gaap	Assets Current AssetsCurrent	137803000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1179000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	6027000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	8764000	USD
CY2020Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	2026000	USD
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	2316000	USD
CY2020Q2	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	8857000	USD
CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	4608000	USD
CY2020Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	45786000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	132084000	USD
CY2020Q2	us-gaap	Land Land	24008000	USD
CY2019Q4	us-gaap	Land Land	24008000	USD
CY2020Q2	us-gaap	Mineral Properties Net MineralPropertiesNet	468863000	USD
CY2019Q4	us-gaap	Mineral Properties Net MineralPropertiesNet	605096000	USD
CY2020Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	17608000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	17687000	USD
CY2020Q2	us-gaap	Equity Method Investments EquityMethodInvestments	252420000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	263080000	USD
CY2020Q2	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	34309000	USD
CY2019Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	36963000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	8554000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	6989000	USD
CY2020Q2	us-gaap	Assets Assets	943565000	USD
CY2019Q4	us-gaap	Assets Assets	1085907000	USD
CY2020Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	1228000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	45776000	USD
CY2020Q2	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	65000	USD
CY2020Q2	us-gaap	Liabilities Current LiabilitiesCurrent	63924000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	62708000	USD
CY2020Q2	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	53431000	USD
CY2019Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	47213000	USD
CY2020Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	452101000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	470422000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4901000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4949000	USD
CY2020Q2	us-gaap	Liabilities Liabilities	574357000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	585292000	USD
CY2020Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q2	us-gaap	Preferred Units Outstanding PreferredUnitsOutstanding	250000	shares
CY2019Q4	us-gaap	Preferred Units Issued PreferredUnitsIssued	250000	shares
CY2019Q4	us-gaap	Preferred Units Outstanding PreferredUnitsOutstanding	250000	shares
CY2020Q2	us-gaap	Preferred Units Issued PreferredUnitsIssued	250000	shares
CY2020Q2	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	1000
CY2019Q4	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	1000
CY2020Q2	us-gaap	Temporary Equity Liquidation Preference Per Share TemporaryEquityLiquidationPreferencePerShare	1700
CY2019Q4	us-gaap	Temporary Equity Liquidation Preference Per Share TemporaryEquityLiquidationPreferencePerShare	1500
CY2020Q2	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	164587000	USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	164587000	USD
CY2019Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	12261199	shares
CY2020Q2	us-gaap	Limited Partners Capital Account Units Issued LimitedPartnersCapitalAccountUnitsIssued	12261199	shares
CY2019Q4	us-gaap	Limited Partners Capital Account Units Issued LimitedPartnersCapitalAccountUnitsIssued	12261199	shares
CY2020Q2	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	12261199	shares
CY2020Q2	us-gaap	Limited Partners Capital Account LimitedPartnersCapitalAccount	139517000	USD
CY2019Q4	us-gaap	Limited Partners Capital Account LimitedPartnersCapitalAccount	271471000	USD
CY2020Q2	us-gaap	General Partners Capital Account GeneralPartnersCapitalAccount	546000	USD
CY2019Q4	us-gaap	General Partners Capital Account GeneralPartnersCapitalAccount	3270000	USD
CY2020Q2	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	66816000	USD
CY2019Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	66816000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2258000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2594000	USD
CY2020Q2	us-gaap	Partners Capital PartnersCapital	204621000	USD
CY2019Q4	us-gaap	Partners Capital PartnersCapital	338963000	USD
CY2020Q2	us-gaap	Partners Capital Attributable To Noncontrolling Interest PartnersCapitalAttributableToNoncontrollingInterest	0	USD
CY2019Q4	us-gaap	Partners Capital Attributable To Noncontrolling Interest PartnersCapitalAttributableToNoncontrollingInterest	-2935000	USD
CY2020Q2	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	204621000	USD
CY2019Q4	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	336028000	USD
CY2020Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	943565000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1085907000	USD
CY2020Q2	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	465000	USD
CY2019Q2	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	246000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	465000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	502000	USD
CY2020Q2	nrp	Revenue Net Including Gain Losson Dispositionof Assets RevenueNetIncludingGainLossonDispositionofAssets	31011000	USD
CY2019Q2	nrp	Revenue Net Including Gain Losson Dispositionof Assets RevenueNetIncludingGainLossonDispositionofAssets	81469000	USD
	nrp	Revenue Net Including Gain Losson Dispositionof Assets RevenueNetIncludingGainLossonDispositionofAssets	71225000	USD
	nrp	Revenue Net Including Gain Losson Dispositionof Assets RevenueNetIncludingGainLossonDispositionofAssets	148510000	USD
CY2020Q2	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	8217000	USD
CY2019Q2	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	12459000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	13419000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	20819000	USD
CY2020Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2062000	USD
CY2019Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	3970000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4074000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8362000	USD
CY2020Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	3621000	USD
CY2019Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	4196000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7534000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	8546000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132283000	USD
CY2020Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132283000	USD
CY2019Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132283000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020Q2	us-gaap	Operating Expenses OperatingExpenses	146183000	USD
CY2019Q2	us-gaap	Operating Expenses OperatingExpenses	20625000	USD
	us-gaap	Operating Expenses OperatingExpenses	157310000	USD
	us-gaap	Operating Expenses OperatingExpenses	37727000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-115172000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	60844000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-86085000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	110783000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	10329000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	12456000	USD
	us-gaap	Interest Expense InterestExpense	20637000	USD
	us-gaap	Interest Expense InterestExpense	26630000	USD
CY2020Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-29282000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-29282000	USD
CY2020Q2	us-gaap	Other Expenses OtherExpenses	10329000	USD
CY2019Q2	us-gaap	Other Expenses OtherExpenses	41738000	USD
	us-gaap	Other Expenses OtherExpenses	20637000	USD
	us-gaap	Other Expenses OtherExpenses	55912000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-125501000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	19106000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-106722000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	54871000	USD
CY2020Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
CY2019Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	245000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	199000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	-125501000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	19351000	USD
	us-gaap	Profit Loss ProfitLoss	-106722000	USD
	us-gaap	Profit Loss ProfitLoss	55070000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7613000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15113000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15000000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-133114000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	11851000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-121835000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	40070000	USD
CY2020Q2	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-130452000	USD
CY2019Q2	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	11614000	USD
	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-119398000	USD
	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	39269000	USD
CY2020Q2	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-2662000	USD
CY2019Q2	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	237000	USD
	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-2437000	USD
	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	801000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-10.64
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.93
	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-9.74
	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	3.19
CY2020Q2	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-10.64
CY2019Q2	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	0.85
	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-9.74
	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	2.58
CY2020Q2	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-10.64
CY2019Q2	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.95
	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-9.74
	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	3.20
CY2020Q2	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-10.64
CY2019Q2	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	0.87
	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-9.74
	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	2.59
CY2020Q2	us-gaap	Profit Loss ProfitLoss	-125501000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	19351000	USD
	us-gaap	Profit Loss ProfitLoss	-106722000	USD
	us-gaap	Profit Loss ProfitLoss	55070000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1359000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-825000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	336000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	180000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-124142000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	18526000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-106386000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	55250000	USD
CY2020Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-3911000	USD
CY2020Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-3911000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	18779000	USD
CY2019Q4	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	336028000	USD
CY2020Q1	nrp	Partners Capital Account Unitbased Compensation Amortization PartnersCapitalAccountUnitbasedCompensationAmortization	673000	USD
CY2020Q1	nrp	Other Comprehensive Income Loss Netof Tax Portion Attributableto Parent Excluding General Partner Distributions OtherComprehensiveIncomeLossNetofTaxPortionAttributabletoParentExcludingGeneralPartnerDistributions	-1023000	USD
CY2020Q1	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	337416000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	-125501000	USD
CY2020Q2	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-1909000	USD
CY2020Q2	nrp	Partners Capital Account Unitbased Compensation Amortization PartnersCapitalAccountUnitbasedCompensationAmortization	869000	USD
CY2020Q2	nrp	Other Comprehensive Income Loss Netof Tax Portion Attributableto Parent Excluding General Partner Distributions OtherComprehensiveIncomeLossNetofTaxPortionAttributabletoParentExcludingGeneralPartnerDistributions	1359000	USD
CY2020Q2	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	204621000	USD
CY2020Q1	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7600000	USD
CY2018Q4	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	420546000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	35719000	USD
CY2019Q1	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	486000	USD
CY2019Q1	nrp	Partners Capital Account Unitbased Compensation Amortization PartnersCapitalAccountUnitbasedCompensationAmortization	399000	USD
CY2019Q1	nrp	Other Comprehensive Income Loss Netof Tax Portion Attributableto Parent Excluding General Partner Distributions OtherComprehensiveIncomeLossNetofTaxPortionAttributabletoParentExcludingGeneralPartnerDistributions	1015000	USD
CY2019Q1	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	445040000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	19351000	USD
CY2019Q2	nrp	Partners Capital Account Unitbased Compensation Amortization PartnersCapitalAccountUnitbasedCompensationAmortization	460000	USD
CY2019Q2	nrp	Other Comprehensive Income Loss Netof Tax Portion Attributableto Parent Excluding General Partner Distributions OtherComprehensiveIncomeLossNetofTaxPortionAttributabletoParentExcludingGeneralPartnerDistributions	-825000	USD
CY2019Q2	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	440261000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
CY2019Q1	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
	us-gaap	Profit Loss ProfitLoss	-106722000	USD
	us-gaap	Profit Loss ProfitLoss	55070000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4074000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8362000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	14210000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	19110000	USD
	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	3214000	USD
	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	23015000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	465000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	502000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-29282000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	199000	USD
CY2020Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132283000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Provision For Other Losses ProvisionForOtherLosses	3657000	USD
	us-gaap	Provision For Other Losses ProvisionForOtherLosses	6691000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1653000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1376000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-1086000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	2151000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-3373000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3107000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	49000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1177000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-3776000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-5522000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-291000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-7144000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	10467000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-2684000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4122000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2501000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	50090000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	76191000	USD
	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	1706000	USD
	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	355000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	51796000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	76546000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	-507000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	-503000	USD
	us-gaap	Proceeds From Collection Of Lease Receivables ProceedsFromCollectionOfLeaseReceivables	1130000	USD
	us-gaap	Proceeds From Collection Of Lease Receivables ProceedsFromCollectionOfLeaseReceivables	892000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	1000000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	637000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	1395000	USD
	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-66000	USD
	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-434000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	571000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	961000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	300000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	19061000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	434470000	USD
	nrp	Proceeds From Paymentsto Discontinued Operations ProceedsFromPaymentstoDiscontinuedOperations	-1640000	USD
	nrp	Proceeds From Paymentsto Discontinued Operations ProceedsFromPaymentstoDiscontinuedOperations	79000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-26402000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-38164000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-197841000	USD
	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-1640000	USD
	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	79000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-39804000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-197762000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	12563000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-120255000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	98265000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	206030000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	110828000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	85775000	USD
	us-gaap	Interest Paid Net InterestPaidNet	20222000	USD
	us-gaap	Interest Paid Net InterestPaidNet	33045000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	924000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2020Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-3900000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	33604000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	69890000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	67546000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	124993000	USD
CY2019Q4	us-gaap	Deferred Revenue DeferredRevenue	51821000	USD
CY2018Q4	us-gaap	Deferred Revenue DeferredRevenue	52553000	USD
	nrp	Deferred Revenue Contractual Minimum Payments DeferredRevenueContractualMinimumPayments	42611000	USD
	nrp	Deferred Revenue Contractual Minimum Payments DeferredRevenueContractualMinimumPayments	29776000	USD
	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	32144000	USD
	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	32460000	USD
CY2020Q2	us-gaap	Deferred Revenue DeferredRevenue	62288000	USD
CY2019Q2	us-gaap	Deferred Revenue DeferredRevenue	49869000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P4Y
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	15233000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P6Y1M6D
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	7478000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P13Y9M18D
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	30802000	USD
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P9Y6M
CY2020Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	53513000	USD
	nrp	Paymentsfor Proceedsfrom Loans Receivable Annual Minimum Payment PaymentsforProceedsfromLoansReceivableAnnualMinimumPayment	5000000.0	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7600000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15100000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15000000.0	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-125501000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	19106000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-106722000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	54871000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7613000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15113000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15000000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partnerand Limited Partners IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartnerandLimitedPartners	-133114000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partnerand Limited Partners IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartnerandLimitedPartners	11606000	USD
	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partnerand Limited Partners IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartnerandLimitedPartners	-121835000	USD
	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partnerand Limited Partners IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartnerandLimitedPartners	39871000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	-2662000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	232000	USD
	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	-2437000	USD
	nrp	Income Lossfrom Continuing Operationsand Income Attributableto Preferred Unitholders Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandIncomeAttributabletoPreferredUnitholdersIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	797000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Limited Partners IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoLimitedPartners	-130452000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Limited Partners IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoLimitedPartners	11374000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Limited Partners IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoLimitedPartners	-119398000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Limited Partners IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoLimitedPartners	39074000	USD
CY2020Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
CY2019Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	245000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	0	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	199000	USD
CY2020Q2	nrp	Net Income Lossfrom Discontinued Operations Allocatedto General Partner NetIncomeLossfromDiscontinuedOperationsAllocatedtoGeneralPartner	0	USD
CY2019Q2	nrp	Net Income Lossfrom Discontinued Operations Allocatedto General Partner NetIncomeLossfromDiscontinuedOperationsAllocatedtoGeneralPartner	5000	USD
	nrp	Net Income Lossfrom Discontinued Operations Allocatedto General Partner NetIncomeLossfromDiscontinuedOperationsAllocatedtoGeneralPartner	0	USD
	nrp	Net Income Lossfrom Discontinued Operations Allocatedto General Partner NetIncomeLossfromDiscontinuedOperationsAllocatedtoGeneralPartner	-4000	USD
CY2020Q2	nrp	Net Income Loss Allocatedto Common Unitholders Discontinued Operations NetIncomeLossAllocatedtoCommonUnitholdersDiscontinuedOperations	0	USD
CY2019Q2	nrp	Net Income Loss Allocatedto Common Unitholders Discontinued Operations NetIncomeLossAllocatedtoCommonUnitholdersDiscontinuedOperations	240000	USD
	nrp	Net Income Loss Allocatedto Common Unitholders Discontinued Operations NetIncomeLossAllocatedtoCommonUnitholdersDiscontinuedOperations	0	USD
	nrp	Net Income Loss Allocatedto Common Unitholders Discontinued Operations NetIncomeLossAllocatedtoCommonUnitholdersDiscontinuedOperations	195000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	-125501000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	19351000	USD
	us-gaap	Profit Loss ProfitLoss	-106722000	USD
	us-gaap	Profit Loss ProfitLoss	55070000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7613000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15113000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15000000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-133114000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	11851000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-121835000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	40070000	USD
CY2020Q2	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-2662000	USD
CY2019Q2	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	237000	USD
	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-2437000	USD
	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	801000	USD
CY2020Q2	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-130452000	USD
CY2019Q2	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	11614000	USD
	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-119398000	USD
	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12261000	shares
	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	39269000	USD
CY2019Q2	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12261000	shares
CY2020Q2	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12261000	shares
CY2019Q2	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12261000	shares
	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12261000	shares
	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12258000	shares
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-10.64
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.93
	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-9.74
	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	3.19
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Basic IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitBasic	0.00
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Basic IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitBasic	0.02
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Basic IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitBasic	0.00
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Basic IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitBasic	0.02
CY2020Q2	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-10.64
CY2019Q2	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.95
	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-9.74
	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	3.20
CY2020Q2	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12261000	shares
	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	12258000	shares
CY2020Q2	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Preferred Units WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofPreferredUnits	0	shares
CY2019Q2	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Preferred Units WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofPreferredUnits	0	shares
	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Preferred Units WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofPreferredUnits	0	shares
	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Preferred Units WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofPreferredUnits	7443000	shares
CY2020Q2	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Warrants WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofWarrants	0	shares
CY2019Q2	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Warrants WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofWarrants	1087000	shares
	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Warrants WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofWarrants	0	shares
	nrp	Weighted Average Number Diluted Limited Partnership Units Outstanding Adjustment Effectof Warrants WeightedAverageNumberDilutedLimitedPartnershipUnitsOutstandingAdjustmentEffectofWarrants	1091000	shares
CY2020Q2	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	12261000	shares
CY2019Q2	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	13388000	shares
	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	12261000	shares
	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	20828000	shares
CY2020Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-125501000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	19106000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-106722000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	54871000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7613000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
CY2019Q2	nrp	Diluted Income Loss From Continuing Operations Net Of Tax Including Portion Attributable To Noncontrolling Interest DilutedIncomeLossFromContinuingOperationsNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	11606000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15113000	USD
CY2020Q2	nrp	Diluted Income Loss From Continuing Operations Net Of Tax Including Portion Attributable To Noncontrolling Interest DilutedIncomeLossFromContinuingOperationsNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-133114000	USD
	nrp	Diluted Income Loss From Continuing Operations Net Of Tax Including Portion Attributable To Noncontrolling Interest DilutedIncomeLossFromContinuingOperationsNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-121835000	USD
	nrp	Diluted Income Loss From Continuing Operations Net Of Tax Including Portion Attributable To Noncontrolling Interest DilutedIncomeLossFromContinuingOperationsNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	54871000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operationsand Other Incomefrom Warrant Liability Fair Value Adjustments Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandOtherIncomefromWarrantLiabilityFairValueAdjustmentsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	-2662000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operationsand Other Incomefrom Warrant Liability Fair Value Adjustments Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandOtherIncomefromWarrantLiabilityFairValueAdjustmentsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	232000	USD
	nrp	Income Lossfrom Continuing Operationsand Other Incomefrom Warrant Liability Fair Value Adjustments Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandOtherIncomefromWarrantLiabilityFairValueAdjustmentsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	-2437000	USD
	nrp	Income Lossfrom Continuing Operationsand Other Incomefrom Warrant Liability Fair Value Adjustments Including Portion Attributableto Noncontrolling Interest Allocatedto General Partner IncomeLossfromContinuingOperationsandOtherIncomefromWarrantLiabilityFairValueAdjustmentsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoGeneralPartner	1097000	USD
CY2020Q2	nrp	Diluted Income Lossfrom Continuing Operations Attributableto Parent DilutedIncomeLossfromContinuingOperationsAttributabletoParent	-130452000	USD
CY2019Q2	nrp	Diluted Income Lossfrom Continuing Operations Attributableto Parent DilutedIncomeLossfromContinuingOperationsAttributabletoParent	11374000	USD
	nrp	Diluted Income Lossfrom Continuing Operations Attributableto Parent DilutedIncomeLossfromContinuingOperationsAttributabletoParent	-119398000	USD
	nrp	Diluted Income Lossfrom Continuing Operations Attributableto Parent DilutedIncomeLossfromContinuingOperationsAttributabletoParent	53774000	USD
CY2020Q2	nrp	Net Income Loss Availableto Common Stockholders Discontinued Operations Diluted NetIncomeLossAvailabletoCommonStockholdersDiscontinuedOperationsDiluted	0	USD
CY2019Q2	nrp	Net Income Loss Availableto Common Stockholders Discontinued Operations Diluted NetIncomeLossAvailabletoCommonStockholdersDiscontinuedOperationsDiluted	240000	USD
	nrp	Net Income Loss Availableto Common Stockholders Discontinued Operations Diluted NetIncomeLossAvailabletoCommonStockholdersDiscontinuedOperationsDiluted	0	USD
	nrp	Net Income Loss Availableto Common Stockholders Discontinued Operations Diluted NetIncomeLossAvailabletoCommonStockholdersDiscontinuedOperationsDiluted	195000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	-125501000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	19351000	USD
	us-gaap	Profit Loss ProfitLoss	-106722000	USD
	us-gaap	Profit Loss ProfitLoss	55070000	USD
CY2020Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7613000	USD
CY2019Q2	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	7500000	USD
	nrp	Income Lossfrom Continuing Operations Including Portion Attributableto Noncontrolling Interest Allocatedto Preferred Unit Holders IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders	15113000	USD
CY2020Q2	nrp	Net Income Loss Allocated To General Partners And Limited Partners Diluted NetIncomeLossAllocatedToGeneralPartnersAndLimitedPartnersDiluted	-133114000	USD
CY2019Q2	nrp	Net Income Loss Allocated To General Partners And Limited Partners Diluted NetIncomeLossAllocatedToGeneralPartnersAndLimitedPartnersDiluted	11851000	USD
	nrp	Net Income Loss Allocated To General Partners And Limited Partners Diluted NetIncomeLossAllocatedToGeneralPartnersAndLimitedPartnersDiluted	-121835000	USD
	nrp	Net Income Loss Allocated To General Partners And Limited Partners Diluted NetIncomeLossAllocatedToGeneralPartnersAndLimitedPartnersDiluted	55070000	USD
CY2020Q2	nrp	Income Loss Attributableto Parentand Other Incomefrom Warrant Liability Fair Value Adjustments Allocatedto General Partner IncomeLossAttributabletoParentandOtherIncomefromWarrantLiabilityFairValueAdjustmentsAllocatedtoGeneralPartner	2662000	USD
CY2019Q2	nrp	Income Loss Attributableto Parentand Other Incomefrom Warrant Liability Fair Value Adjustments Allocatedto General Partner IncomeLossAttributabletoParentandOtherIncomefromWarrantLiabilityFairValueAdjustmentsAllocatedtoGeneralPartner	-237000	USD
	nrp	Income Loss Attributableto Parentand Other Incomefrom Warrant Liability Fair Value Adjustments Allocatedto General Partner IncomeLossAttributabletoParentandOtherIncomefromWarrantLiabilityFairValueAdjustmentsAllocatedtoGeneralPartner	2437000	USD
	nrp	Income Loss Attributableto Parentand Other Incomefrom Warrant Liability Fair Value Adjustments Allocatedto General Partner IncomeLossAttributabletoParentandOtherIncomefromWarrantLiabilityFairValueAdjustmentsAllocatedtoGeneralPartner	-1101000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-130452000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	0.85
	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-9.74
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	11614000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-119398000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	53969000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-10.64
	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	2.58
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted1 IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted1	0.00
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted1 IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted1	0.02
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted1 IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted1	0.00
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted1 IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted1	0.01
CY2020Q2	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-10.64
CY2019Q2	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	0.87
	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-9.74
	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	2.59
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2020Q2	us-gaap	Revenues Revenues	30546000	USD
CY2020Q2	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	465000	USD
CY2020Q2	nrp	Operating Costsand Expenses Including Affiliates OperatingCostsandExpensesIncludingAffiliates	8217000	USD
CY2020Q2	nrp	Depreciation Depletionand Amortization Including Related Parties DepreciationDepletionandAmortizationIncludingRelatedParties	2062000	USD
CY2020Q2	nrp	Generaland Administrative Expenseincludingaffiliates GeneralandAdministrativeExpenseincludingaffiliates	3621000	USD
CY2020Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132283000	USD
CY2020Q2	us-gaap	Other Expenses OtherExpenses	10329000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-125501000	USD
CY2019Q2	us-gaap	Revenues Revenues	81223000	USD
CY2019Q2	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	246000	USD
CY2019Q2	nrp	Operating Costsand Expenses Including Affiliates OperatingCostsandExpensesIncludingAffiliates	12459000	USD
CY2019Q2	nrp	Depreciation Depletionand Amortization Including Related Parties DepreciationDepletionandAmortizationIncludingRelatedParties	3970000	USD
CY2019Q2	nrp	Generaland Administrative Expenseincludingaffiliates GeneralandAdministrativeExpenseincludingaffiliates	4196000	USD
CY2019Q2	us-gaap	Other Expenses OtherExpenses	41738000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	19106000	USD
CY2019Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	245000	USD
	us-gaap	Revenues Revenues	70760000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	465000	USD
	nrp	Operating Costsand Expenses Including Affiliates OperatingCostsandExpensesIncludingAffiliates	13419000	USD
	nrp	Depreciation Depletionand Amortization Including Related Parties DepreciationDepletionandAmortizationIncludingRelatedParties	4074000	USD
	nrp	Generaland Administrative Expenseincludingaffiliates GeneralandAdministrativeExpenseincludingaffiliates	7534000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132283000	USD
	us-gaap	Other Expenses OtherExpenses	20637000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-106722000	USD
	us-gaap	Revenues Revenues	148008000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	502000	USD
	nrp	Operating Costsand Expenses Including Affiliates OperatingCostsandExpensesIncludingAffiliates	20819000	USD
	nrp	Depreciation Depletionand Amortization Including Related Parties DepreciationDepletionandAmortizationIncludingRelatedParties	8362000	USD
	nrp	Generaland Administrative Expenseincludingaffiliates GeneralandAdministrativeExpenseincludingaffiliates	8546000	USD
	us-gaap	Other Expenses OtherExpenses	55912000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	54871000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	199000	USD
CY2019Q4	us-gaap	Mineral Properties Gross MineralPropertiesGross	1048389000	USD
CY2019Q4	us-gaap	Mineral Properties Accumulated Depletion MineralPropertiesAccumulatedDepletion	443293000	USD
CY2020Q2	us-gaap	Mineral Properties Gross MineralPropertiesGross	834540000	USD
CY2020Q2	us-gaap	Mineral Properties Accumulated Depletion MineralPropertiesAccumulatedDepletion	365677000	USD
CY2020Q2	us-gaap	Mineral Properties Net MineralPropertiesNet	468863000	USD
CY2019Q4	us-gaap	Mineral Properties Net MineralPropertiesNet	605096000	USD
CY2020Q2	nrp	Depletion And Amortization Expense On Coal And Other Mineral Rights DepletionAndAmortizationExpenseOnCoalAndOtherMineralRights	2000000.0	USD
CY2019Q2	nrp	Depletion And Amortization Expense On Coal And Other Mineral Rights DepletionAndAmortizationExpenseOnCoalAndOtherMineralRights	3200000	USD
	nrp	Depletion And Amortization Expense On Coal And Other Mineral Rights DepletionAndAmortizationExpenseOnCoalAndOtherMineralRights	3900000	USD
	nrp	Depletion And Amortization Expense On Coal And Other Mineral Rights DepletionAndAmortizationExpenseOnCoalAndOtherMineralRights	6700000	USD
CY2020Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132300000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132300000	USD
CY2020Q2	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	504995000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	524056000	USD
CY2020Q2	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	7108000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	7858000	USD
CY2020Q2	us-gaap	Long Term Debt LongTermDebt	497887000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	516198000	USD
CY2020Q2	us-gaap	Long Term Debt Current LongTermDebtCurrent	45786000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	45776000	USD
CY2020Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	452101000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	470422000	USD
CY2019Q2	us-gaap	Redemption Premium RedemptionPremium	18100000	USD
CY2019Q2	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	10400000	USD
CY2020Q2	us-gaap	Receivables Fair Value Disclosure ReceivablesFairValueDisclosure	36278000	USD
CY2019Q4	us-gaap	Receivables Fair Value Disclosure ReceivablesFairValueDisclosure	38945000	USD
CY2020Q2	nrp	Fairvaluepercentageofpar Fairvaluepercentageofpar	0.84
	nrp	Discount Rate DiscountRate	0.15
CY2020Q2	us-gaap	Embedded Derivative Fair Value Of Embedded Derivative Liability EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability	0	USD
CY2019Q4	us-gaap	Embedded Derivative Fair Value Of Embedded Derivative Liability EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability	0	USD
	nrp	Sharebased Compensation Arrangementby Sharebased Payment Award Equity Instruments Otherthan Options Grantsin Period Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodFairValue	3500000	USD
	nrp	Sharebased Compensation Arrangementby Sharebased Payment Award Equity Instruments Otherthan Options Grantsin Period Fair Value SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodFairValue	5400000	USD
CY2020Q2	nrp	Unaccrued Cost Associated With Outstanding Grants And Related Distribution Equivalent Rights UnaccruedCostAssociatedWithOutstandingGrantsAndRelatedDistributionEquivalentRights	5100000	USD
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P2Y1M6D
CY2019Q4	nrp	Unaccrued Cost Associated With Outstanding Grants And Related Distribution Equivalent Rights UnaccruedCostAssociatedWithOutstandingGrantsAndRelatedDistributionEquivalentRights	3500000	USD
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	0	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	157000	shares
CY2019Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	37.48
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	203000	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	17.20
CY2020Q2	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	360000	shares
CY2020Q2	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	26.08
CY2020Q2	us-gaap	Lessor Operating Lease Renewal Term LessorOperatingLeaseRenewalTerm	P80Y
	nrp	Paymentsfor Proceedsfrom Loans Receivable Annual Minimum Payment PaymentsforProceedsfromLoansReceivableAnnualMinimumPayment	5000000.0	USD
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020Q2	nrp	Shortterm Receivables Gross ShorttermReceivablesGross	29840000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2042000	USD
CY2020Q2	nrp	Shorttermreceivablesnetof Cecl ShorttermreceivablesnetofCECL	27798000	USD
CY2020Q2	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	35912000	USD
CY2020Q2	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	1603000	USD
CY2020Q2	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	34309000	USD
CY2020Q2	nrp	Totalreceivables Gross TotalreceivablesGross	65752000	USD
CY2020Q2	nrp	Cecl Allowancetotal CECLAllowancetotal	3645000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	11597000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	13770000	USD
CY2020Q2	nrp	Totalreceivablesnetof Cecl TotalreceivablesnetofCECL	62107000	USD
CY2020Q2	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-100000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	300000	USD
	us-gaap	Lessee Operating Lease Option To Extend LesseeOperatingLeaseOptionToExtend	five
CY2020Q2	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2020Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3500000	USD
CY2019Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	100000	USD
CY2020Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	100000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	200000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	200000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	241000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	483000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	483000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	483000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	483000	USD
CY2020Q2	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.135
CY2020Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	10269000	USD
CY2020Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	3501000	USD
CY2020Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P28Y6M

Files In Submission

Name	View Source	Status
0001171486-20-000032-index-headers.html	Edgar Link	pending
0001171486-20-000032-index.html	Edgar Link	pending
0001171486-20-000032.txt	Edgar Link	pending
0001171486-20-000032-xbrl.zip	Edgar Link	pending
a2020q2exhibit311.htm	Edgar Link	pending
a2020q2exhibit312.htm	Edgar Link	pending
a2020q2exhibit321.htm	Edgar Link	pending
a2020q2exhibit322.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
nrp-20200630.htm	Edgar Link	pending
nrp-20200630.xsd	Edgar Link	pending
nrp-20200630_cal.xml	Edgar Link	unprocessable
nrp-20200630_def.xml	Edgar Link	unprocessable
nrp-20200630_g1.gif	Edgar Link	pending
nrp-20200630_htm.xml	Edgar Link	completed
nrp-20200630_lab.xml	Edgar Link	unprocessable
nrp-20200630_pre.xml	Edgar Link	unprocessable
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$NRP
NATURAL RESOURCE PARTNERS LP Stock $nrp

2020 Q3 Form 10-Q Financial Statement

#000117148620000032 Filed on August 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NRP NATURAL RESOURCE PARTNERS LP Stock $nrp

2020 Q3 Form 10-Q Financial Statement

#000117148620000032 Filed on August 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NRP
NATURAL RESOURCE PARTNERS LP Stock $nrp