10-K Filing

NATURAL RESOURCE PARTNERS LP CIK: 1171486 FY 2021

Filing Information

Form Type	10-K
Accession Number	`0001171486-22-000021`
Period End Date	20211231
Filing Date	20220315
Fiscal Year	2021
Fiscal Period	FY
XBRL Instance	nrp-20211231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 70 Income Statement 76 Cash Flow Statement 130 Stockholders Equity 29

Balance Sheet 70 line items

Line Item	Tag	Value	Unit	Period
Class A convertible preferred units (in units)	`PreferredUnitsIssued`	269,321.00	shares	Point-in-time
Class A convertible preferred units (in units)	`PreferredUnitsIssued`	253,750.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$135.52M	USD	Point-in-time
Class A preferred units, outstanding (in units)	`PreferredUnitsOutstanding`	269,321.00	shares	Point-in-time
Class A preferred units, outstanding (in units)	`PreferredUnitsOutstanding`	253,750.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$99.79M	USD	Point-in-time
Class A convertible preferred units (in units)	`TemporaryEquityParOrStatedValuePerShare`	$1.00K	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$24.54M	USD	Point-in-time
Class A convertible preferred units (in units)	`TemporaryEquityParOrStatedValuePerShare`	$1.00K	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$12.32M	USD	Point-in-time
Other current assets, net	`PrepaidExpenseAndOtherAssetsCurrent`	$2.72M	USD	Point-in-time
Class A convertible preferred units, liquidation preference (in USD per unit)	`TemporaryEquityLiquidationPreferencePerShare`	$1.70K	USD	Point-in-time
Other current assets, net	`PrepaidExpenseAndOtherAssetsCurrent`	$5.08M	USD	Point-in-time
Class A convertible preferred units, liquidation preference (in USD per unit)	`TemporaryEquityLiquidationPreferencePerShare`	$1.85K	USD	Point-in-time
Total current assets	`AssetsCurrent`	$117.19M	USD	Point-in-time
Common unitholders', units issued (in units)	`LimitedPartnersCapitalAccountUnitsIssued`	12.26M	shares	Point-in-time
Total current assets	`AssetsCurrent`	$162.78M	USD	Point-in-time
Common unitholders', units issued (in units)	`LimitedPartnersCapitalAccountUnitsIssued`	12.35M	shares	Point-in-time
Common unitholders', units outstanding (in units)	`LimitedPartnersCapitalAccountUnitsOutstanding`	12.26M	shares	Point-in-time
Land	`Land`	$24.01M	USD	Point-in-time
Land	`Land`	$24.01M	USD	Point-in-time
Common unitholders', units outstanding (in units)	`LimitedPartnersCapitalAccountUnitsOutstanding`	12.35M	shares	Point-in-time
Mineral rights, net	`MineralPropertiesNet`	$460.37M	USD	Point-in-time
Mineral rights, net	`MineralPropertiesNet`	$437.70M	USD	Point-in-time
Intangible assets, net	`FiniteLivedIntangibleAssetsNet`	$16.13M	USD	Point-in-time
Intangible assets, net	`FiniteLivedIntangibleAssetsNet`	$17.46M	USD	Point-in-time
Equity in unconsolidated investment	`EquityMethodInvestments`	$262.51M	USD	Point-in-time
Equity in unconsolidated investment	`EquityMethodInvestments`	$276.00M	USD	Point-in-time
Long-term contract receivable, net	`NontradeReceivablesNoncurrent`	$33.26M	USD	Point-in-time
Long-term contract receivable, net	`NontradeReceivablesNoncurrent`	$31.37M	USD	Point-in-time
Other long-term assets, net	`OtherAssetsNoncurrent`	$5.83M	USD	Point-in-time
Other long-term assets, net	`OtherAssetsNoncurrent`	$7.07M	USD	Point-in-time
Total assets	`Assets`	$953.82M	USD	Point-in-time
Total assets	`Assets`	$921.88M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$1.39M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$1.96M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$7.73M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$10.30M	USD	Point-in-time
Accrued interest	`InterestPayableCurrentAndNoncurrent`	$1.21M	USD	Point-in-time
Accrued interest	`InterestPayableCurrentAndNoncurrent`	$1.71M	USD	Point-in-time
Current portion of deferred revenue	`DeferredRevenueCurrent`	$11.48M	USD	Point-in-time
Current portion of deferred revenue	`DeferredRevenueCurrent`	$11.82M	USD	Point-in-time
Current portion of long-term debt, net	`LongTermDebtCurrent`	$39.10M	USD	Point-in-time
Current portion of long-term debt, net	`LongTermDebtCurrent`	$39.05M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$64.39M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$61.37M	USD	Point-in-time
Deferred revenue	`DeferredRevenueNoncurrent`	$50.05M	USD	Point-in-time
Deferred revenue	`DeferredRevenueNoncurrent`	$50.07M	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$394.44M	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$432.44M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$5.02M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$5.13M	USD	Point-in-time
Total liabilities	`Liabilities`	$513.89M	USD	Point-in-time
Total liabilities	`Liabilities`	$549.02M	USD	Point-in-time
Class A Convertible Preferred Units (269,321 and 253,750 units issued and outstanding at December 31, 2021 and 2020, respectively, at $1,000 par value per unit; liquidation preference of $1,850 per unit at December 31, 2021 and $1,700 per unit per unit at December 31, 2020)	`TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests`	$183.91M	USD	Point-in-time
Class A Convertible Preferred Units (269,321 and 253,750 units issued and outstanding at December 31, 2021 and 2020, respectively, at $1,000 par value per unit; liquidation preference of $1,850 per unit at December 31, 2021 and $1,700 per unit per unit at December 31, 2020)	`TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests`	$168.34M	USD	Point-in-time
Common unitholders interest (12,351,306 and 12,261,199 units issued and outstanding at December 31, 2021 and 2020, respectively)	`LimitedPartnersCapitalAccount`	$136.93M	USD	Point-in-time
Common unitholders interest (12,351,306 and 12,261,199 units issued and outstanding at December 31, 2021 and 2020, respectively)	`LimitedPartnersCapitalAccount`	$203.06M	USD	Point-in-time
General partners interest	`GeneralPartnersCapitalAccount`	$459.00K	USD	Point-in-time
General partners interest	`GeneralPartnersCapitalAccount`	$1.79M	USD	Point-in-time
Warrant holders interest	`WarrantsAndRightsOutstanding`	$47.96M	USD	Point-in-time
Warrant holders interest	`WarrantsAndRightsOutstanding`	$66.82M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$3.21M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$322.00K	USD	Point-in-time
Total partners' capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$204.52M	USD	Point-in-time
Total partners' capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$256.02M	USD	Point-in-time
Total partners' capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$420.55M	USD	Point-in-time
Total partners' capital	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$336.03M	USD	Point-in-time
Total liabilities and partners' capital	`LiabilitiesAndStockholdersEquity`	$953.82M	USD	Point-in-time
Total liabilities and partners' capital	`LiabilitiesAndStockholdersEquity`	$921.88M	USD	Point-in-time

Income Statement 76 line items

Line Item	Tag	Value	Unit	Period
Revenues	`Revenues`	$257.44M	USD	Annual
Revenues	`Revenues`	$216.12M	USD	Annual
Revenues	`Revenues`	$139.74M	USD	Annual
Gain on asset sales and disposals	`GainLossOnDispositionOfAssets1`	$581.00K	USD	Annual
Gain on asset sales and disposals	`GainLossOnDispositionOfAssets1`	$6.50M	USD	Annual
Gain on asset sales and disposals	`GainLossOnDispositionOfAssets1`	$245.00K	USD	Annual
Total revenues and other income	`RevenueNetIncludingGainLossonDispositionofAssets`	$216.36M	USD	Annual
Total revenues and other income	`RevenueNetIncludingGainLossonDispositionofAssets`	$140.32M	USD	Annual
Total revenues and other income	`RevenueNetIncludingGainLossonDispositionofAssets`	$263.94M	USD	Annual
Operating and maintenance expenses	`OperatingCostsAndExpenses`	$32.74M	USD	Annual
Operating and maintenance expenses	`OperatingCostsAndExpenses`	$27.05M	USD	Annual
Operating and maintenance expenses	`OperatingCostsAndExpenses`	$24.80M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$14.93M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$9.20M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$19.07M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$14.29M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$16.73M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$17.36M	USD	Annual
Asset impairments	`AssetImpairmentCharges`	$135.88M	USD	Annual
Asset impairments	`AssetImpairmentCharges`	$148.21M	USD	Annual
Asset impairments	`AssetImpairmentCharges`	$5.10M	USD	Annual
Total operating expenses	`OperatingExpenses`	$184.17M	USD	Annual
Total operating expenses	`OperatingExpenses`	$68.59M	USD	Annual
Total operating expenses	`OperatingExpenses`	$212.61M	USD	Annual
Income (loss) from operations	`OperatingIncomeLoss`	$-43.85M	USD	Annual
Income (loss) from operations	`OperatingIncomeLoss`	$51.32M	USD	Annual
Income (loss) from operations	`OperatingIncomeLoss`	$147.78M	USD	Annual
Interest expense, net	`InterestExpense`	$40.97M	USD	Annual
Interest expense, net	`InterestExpense`	$47.45M	USD	Annual
Interest expense, net	`InterestExpense`	$38.88M	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-29.28M	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Other expenses, net	`OtherExpenses`	$40.97M	USD	Annual
Other expenses, net	`OtherExpenses`	$76.73M	USD	Annual
Other expenses, net	`OtherExpenses`	$38.88M	USD	Annual
Net income (loss) from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$108.90M	USD	Annual
Net income (loss) from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-25.41M	USD	Annual
Net income (loss) from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-84.82M	USD	Annual
Income from discontinued operations	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	$956.00K	USD	Annual
Income from discontinued operations	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	-	USD	Annual
Income from discontinued operations	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	-	USD	Annual
Net income (loss)	`ProfitLoss`	$-24.46M	USD	Annual
Net income (loss)	`ProfitLoss`	$-84.82M	USD	Annual
Net income (loss)	`ProfitLoss`	$108.90M	USD	Annual
Net income attributable to non-controlling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Less: income attributable to preferred unitholders	`IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders`	$-30.23M	USD	Annual
Less: income attributable to preferred unitholders	`IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders`	$-31.61M	USD	Annual
Less: income attributable to preferred unitholders	`IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders`	$-30.00M	USD	Annual
Net income (loss) attributable to common unitholders and the general partner	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-115.04M	USD	Annual
Net income (loss) attributable to common unitholders and the general partner	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-54.46M	USD	Annual
Net income (loss) attributable to common unitholders and the general partner	`NetIncomeLossAvailableToCommonStockholdersBasic`	$77.29M	USD	Annual
Net income (loss) attributable to common unitholders	`NetIncomeLossAllocatedToLimitedPartners`	$75.75M	USD	Annual
Net income (loss) attributable to common unitholders	`NetIncomeLossAllocatedToLimitedPartners`	$-53.37M	USD	Annual
Net income (loss) attributable to common unitholders	`NetIncomeLossAllocatedToLimitedPartners`	$-112.74M	USD	Annual
Net income (loss) attributable to the general partner	`NetIncomeLossAllocatedToGeneralPartners`	$1.55M	USD	Annual
Net income (loss) attributable to the general partner	`NetIncomeLossAllocatedToGeneralPartners`	$-1.09M	USD	Annual
Net income (loss) attributable to the general partner	`NetIncomeLossAllocatedToGeneralPartners`	$-2.30M	USD	Annual
Income (loss) from continuing operations per common unit (basic)	`IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax`	$6.14	USD	Annual
Income (loss) from continuing operations per common unit (basic)	`IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax`	$-9.20	USD	Annual
Income (loss) from continuing operations per common unit (basic)	`IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax`	$-4.43	USD	Annual
Income (loss) from continuing operations per common unit (diluted)	`IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted`	$4.81	USD	Annual
Income (loss) from continuing operations per common unit (diluted)	`IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted`	$-9.20	USD	Annual
Income (loss) from continuing operations per common unit (diluted)	`IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted`	$-4.43	USD	Annual
Net income per common unit (basic)	`NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax`	$-4.35	USD	Annual
Net income per common unit (basic)	`NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax`	$6.14	USD	Annual
Net income per common unit (basic)	`NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax`	$-9.20	USD	Annual
Net income per common unit (diluted)	`NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted`	$-4.35	USD	Annual
Net income per common unit (diluted)	`NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted`	$4.81	USD	Annual
Net income per common unit (diluted)	`NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted`	$-9.20	USD	Annual
Comprehensive income from unconsolidated investment and other	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$2.89M	USD	Annual
Comprehensive income from unconsolidated investment and other	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$2.92M	USD	Annual
Comprehensive income from unconsolidated investment and other	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$868.00K	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-81.90M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-23.59M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$111.79M	USD	Annual

Cash Flow Statement 130 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$-24.46M	USD	Annual
Net income (loss)	`ProfitLoss`	$-84.82M	USD	Annual
Net income (loss)	`ProfitLoss`	$108.90M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$14.93M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$9.20M	USD	Annual
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$19.07M	USD	Annual
Distributions from unconsolidated investment	`EquityMethodInvestmentDividendsOrDistributions`	$14.21M	USD	Annual
Distributions from unconsolidated investment	`EquityMethodInvestmentDividendsOrDistributions`	$11.27M	USD	Annual
Distributions from unconsolidated investment	`EquityMethodInvestmentDividendsOrDistributions`	$31.85M	USD	Annual
Equity earnings from unconsolidated investment	`EquityEarningsFromUnconsolidatedInvestment`	$47.09M	USD	Annual
Equity earnings from unconsolidated investment	`EquityEarningsFromUnconsolidatedInvestment`	$10.73M	USD	Annual
Equity earnings from unconsolidated investment	`EquityEarningsFromUnconsolidatedInvestment`	$21.87M	USD	Annual
Gain on asset sales and disposals	`GainLossOnDispositionOfAssets1`	$581.00K	USD	Annual
Gain on asset sales and disposals	`GainLossOnDispositionOfAssets1`	$6.50M	USD	Annual
Gain on asset sales and disposals	`GainLossOnDispositionOfAssets1`	$245.00K	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-29.28M	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Income from discontinued operations	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	$956.00K	USD	Annual
Income from discontinued operations	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	-	USD	Annual
Income from discontinued operations	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax`	-	USD	Annual
Asset impairments	`AssetImpairmentCharges`	$135.88M	USD	Annual
Asset impairments	`AssetImpairmentCharges`	$148.21M	USD	Annual
Asset impairments	`AssetImpairmentCharges`	$5.10M	USD	Annual
Bad debt expense	`ProvisionForOtherLosses`	$2.57M	USD	Annual
Bad debt expense	`ProvisionForOtherLosses`	$4.00M	USD	Annual
Bad debt expense	`ProvisionForOtherLosses`	$7.46M	USD	Annual
Unit-based compensation expense	`ShareBasedCompensation`	$2.36M	USD	Annual
Unit-based compensation expense	`ShareBasedCompensation`	$3.57M	USD	Annual
Unit-based compensation expense	`ShareBasedCompensation`	$4.04M	USD	Annual
Amortization of debt issuance costs and other	`OtherOperatingActivitiesCashFlowStatement`	$2.27M	USD	Annual
Amortization of debt issuance costs and other	`OtherOperatingActivitiesCashFlowStatement`	$1.32M	USD	Annual
Amortization of debt issuance costs and other	`OtherOperatingActivitiesCashFlowStatement`	$3.69M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$14.41M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$6.04M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-12.85M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$207.00K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$570.00K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-1.23M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-3.66M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$3.02M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-2.21M	USD	Annual
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$-12.03M	USD	Annual
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$-602.00K	USD	Annual
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$-501.00K	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$-732.00K	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$9.73M	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$307.00K	USD	Annual
Other items, net	`IncreaseDecreaseInOtherOperatingAssets`	$4.48M	USD	Annual
Other items, net	`IncreaseDecreaseInOtherOperatingAssets`	$-1.71M	USD	Annual
Other items, net	`IncreaseDecreaseInOtherOperatingAssets`	$-2.22M	USD	Annual
Net cash provided by operating activities of continuing operations	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$121.80M	USD	Annual
Net cash provided by operating activities of continuing operations	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$87.57M	USD	Annual
Net cash provided by operating activities of continuing operations	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$137.32M	USD	Annual
Net cash provided by (used in) operating activities of discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$1.71M	USD	Annual
Net cash provided by (used in) operating activities of discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-8.00K	USD	Annual
Net cash provided by (used in) operating activities of discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	-	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$121.80M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$89.27M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$137.31M	USD	Annual
Proceeds from asset sales and disposals	`ProceedsFromSaleOfProductiveAssets`	$623.00K	USD	Annual
Proceeds from asset sales and disposals	`ProceedsFromSaleOfProductiveAssets`	$6.50M	USD	Annual
Proceeds from asset sales and disposals	`ProceedsFromSaleOfProductiveAssets`	$249.00K	USD	Annual
Acquisition of non-controlling interest in BRP	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Acquisition of non-controlling interest in BRP	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Acquisition of non-controlling interest in BRP	`PaymentsToAcquireEquityMethodInvestments`	$1.00M	USD	Annual
Acquisition of mineral rights	`PaymentsToAcquireMineralRights`	-	USD	Annual
Acquisition of mineral rights	`PaymentsToAcquireMineralRights`	-	USD	Annual
Acquisition of mineral rights	`PaymentsToAcquireMineralRights`	$22.00K	USD	Annual
Return of long-term contract receivable	`ProceedsFromCollectionOfLeaseReceivables`	$1.74M	USD	Annual
Return of long-term contract receivable	`ProceedsFromCollectionOfLeaseReceivables`	$2.12M	USD	Annual
Return of long-term contract receivable	`ProceedsFromCollectionOfLeaseReceivables`	$2.16M	USD	Annual
Net cash provided by investing activities of continuing operations	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$1.75M	USD	Annual
Net cash provided by investing activities of continuing operations	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$2.41M	USD	Annual
Net cash provided by investing activities of continuing operations	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$8.22M	USD	Annual
Net cash used in investing activities of discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$-629.00K	USD	Annual
Net cash used in investing activities of discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$-65.00K	USD	Annual
Net cash used in investing activities of discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	-	USD	Annual
Debt borrowings	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Debt borrowings	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Debt borrowings	`ProceedsFromIssuanceOfLongTermDebt`	$300.00M	USD	Annual
Debt repayments	`RepaymentsOfLongTermDebt`	$39.40M	USD	Annual
Debt repayments	`RepaymentsOfLongTermDebt`	$46.18M	USD	Annual
Debt repayments	`RepaymentsOfLongTermDebt`	$463.08M	USD	Annual
Cash Settlement, Warrant Redemption	`CashSettlementWarrantRedemption`	-	USD	Annual
Cash Settlement, Warrant Redemption	`CashSettlementWarrantRedemption`	-	USD	Annual
Cash Settlement, Warrant Redemption	`CashSettlementWarrantRedemption`	$9.18M	USD	Annual
Payments to Acquire Equity Method Investments, Financing Activities	`PaymentsToAcquireEquityMethodInvestmentsFinancingActivities`	$1.00M	USD	Annual
Payments to Acquire Equity Method Investments, Financing Activities	`PaymentsToAcquireEquityMethodInvestmentsFinancingActivities`	-	USD	Annual
Payments to Acquire Equity Method Investments, Financing Activities	`PaymentsToAcquireEquityMethodInvestmentsFinancingActivities`	-	USD	Annual
Contributions from (to) discontinued operations	`ProceedsFromPaymentstoDiscontinuedOperations`	$-1.64M	USD	Annual
Contributions from (to) discontinued operations	`ProceedsFromPaymentstoDiscontinuedOperations`	-	USD	Annual
Contributions from (to) discontinued operations	`ProceedsFromPaymentstoDiscontinuedOperations`	$637.00K	USD	Annual
Other items	`ProceedsFromPaymentsForOtherFinancingActivities`	$-26.44M	USD	Annual
Other items	`ProceedsFromPaymentsForOtherFinancingActivities`	$-691.00K	USD	Annual
Other items	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Net cash used in financing activities of continuing operations	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-87.79M	USD	Annual
Net cash used in financing activities of continuing operations	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-253.31M	USD	Annual
Net cash used in financing activities of continuing operations	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-88.49M	USD	Annual
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$2.41M	USD	Annual
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$1.68M	USD	Annual
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$7.59M	USD	Annual
Net cash provided by (used in) financing activities of discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	Annual
Net cash provided by (used in) financing activities of discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	$637.00K	USD	Annual
Net cash provided by (used in) financing activities of discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	$-1.64M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-89.43M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-88.49M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-252.67M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-107.77M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$35.73M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.52M	USD	Annual
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$99.79M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$135.52M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$98.27M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$206.03M	USD	Point-in-time
Cash, cash equivalents and restricted cash of continuing operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$99.79M	USD	Point-in-time
Cash, cash equivalents and restricted cash of continuing operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$135.52M	USD	Point-in-time
Cash, cash equivalents and restricted cash of continuing operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$98.27M	USD	Point-in-time
Cash, cash equivalents and restricted cash of continuing operations at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$206.03M	USD	Point-in-time
Cash paid for interest	`InterestPaidNet`	$39.83M	USD	Annual
Cash paid for interest	`InterestPaidNet`	$37.38M	USD	Annual
Cash paid for interest	`InterestPaidNet`	$58.60M	USD	Annual
Plant, equipment and mineral rights funded with accounts payable or accrued liabilities	`CapitalExpendituresIncurredButNotYetPaid`	-	USD	Annual
Plant, equipment and mineral rights funded with accounts payable or accrued liabilities	`CapitalExpendituresIncurredButNotYetPaid`	-	USD	Annual
Plant, equipment and mineral rights funded with accounts payable or accrued liabilities	`CapitalExpendituresIncurredButNotYetPaid`	$970.00K	USD	Annual
Dividends, Paid-in-kind	`DividendsPaidinkind`	$15.57M	USD	Annual
Dividends, Paid-in-kind	`DividendsPaidinkind`	$3.75M	USD	Annual
Dividends, Paid-in-kind	`DividendsPaidinkind`	-	USD	Annual
Dividends, Paid-in-kind	`DividendsPaidinkind`	$3.75K	USD	1 Quarter
Dividends, Paid-in-kind	`DividendsPaidinkind`	$3.75K	USD	1 Quarter

Stockholders Equity 29 line items

Line Item	Tag	Value	Unit	Period
Balance, beginning of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$204.52M	USD	Point-in-time
Balance, beginning of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$256.02M	USD	Point-in-time
Balance, beginning of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$420.55M	USD	Point-in-time
Balance, beginning of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$336.03M	USD	Point-in-time
Net income (loss)	`ProfitLoss`	$-24.46M	USD	Annual
Net income (loss)	`ProfitLoss`	$-84.82M	USD	Annual
Net income (loss)	`ProfitLoss`	$108.90M	USD	Annual
Partners' Capital Account, Unit-based Payment Arrangement, Amount	`PartnersCapitalAccountUnitBasedCompensation`	$486.00K	USD	Annual
Partners' Capital Account, Unit-based Payment Arrangement, Amount	`PartnersCapitalAccountUnitBasedCompensation`	-	USD	Annual
Partners' Capital Account, Unit-based Compensation, Amortization	`PartnersCapitalAccountUnitbasedCompensationAmortization`	$2.65M	USD	Annual
Partners' Capital Account, Unit-based Compensation, Amortization	`PartnersCapitalAccountUnitbasedCompensationAmortization`	$1.80M	USD	Annual
Partners' Capital Account, Contributions	`PartnersCapitalAccountContributions`	$32.00K	USD	Annual
Partners' Capital Account, Warrant Settlement	`PartnersCapitalAccountWarrantSettlement`	$-9.18M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Excluding General Partner Distributions	`OtherComprehensiveIncomeLossNetofTaxPortionAttributabletoParentExcludingGeneralPartnerDistributions`	$800.00K	USD	Annual
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Excluding General Partner Distributions	`OtherComprehensiveIncomeLossNetofTaxPortionAttributabletoParentExcludingGeneralPartnerDistributions`	$2.92M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Excluding General Partner Distributions	`OtherComprehensiveIncomeLossNetofTaxPortionAttributabletoParentExcludingGeneralPartnerDistributions`	$2.89M	USD	Annual
Unit-based awards amortization and vesting	`AdjustmentsToAdditionalPaidInCapitalWarrantIssued`	$3.22M	USD	Annual
Comprehensive income (loss) from unconsolidated investment and other	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$2.89M	USD	Annual
Comprehensive income (loss) from unconsolidated investment and other	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$2.92M	USD	Annual
Comprehensive income (loss) from unconsolidated investment and other	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$868.00K	USD	Annual
Balance, end of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$204.52M	USD	Point-in-time
Balance, end of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$256.02M	USD	Point-in-time
Balance, end of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$420.55M	USD	Point-in-time
Balance, end of period	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$336.03M	USD	Point-in-time
Net Income (Loss) Attributable to Noncontrolling Interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Income attributable to preferred unitholders	`IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders`	$-30.23M	USD	Annual
Income attributable to preferred unitholders	`IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders`	$-31.61M	USD	Annual
Income attributable to preferred unitholders	`IncomeLossfromContinuingOperationsIncludingPortionAttributabletoNoncontrollingInterestAllocatedtoPreferredUnitHolders`	$-30.00M	USD	Annual
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	`MinorityInterestDecreaseFromRedemptions`	$1.91M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.