$MP
MP Materials Corp. / DE Stock $mp

$mp Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000180136822000010 Filed on February 28, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$99.11M	$332.0M	$134.3M
YoY Change	-26.2%	147.15%
Cost Of Revenue	$18.46M	$74.31M	$66.20M
YoY Change	-72.12%	12.25%
Gross Profit	$80.65M	$257.6M	$68.10M
YoY Change	18.43%	278.33%
Gross Profit Margin	81.38%	77.61%	50.71%
Selling, General & Admin	$15.88M	$57.59M	$23.70M
YoY Change	-33.0%	113.29%
% of Gross Profit	19.69%	22.35%	34.8%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$4.615M	$24.38M	$6.930M
YoY Change	-33.41%	251.78%
% of Gross Profit	5.72%	9.46%	10.18%
Operating Expenses	$23.23M	$88.92M	$32.80M
YoY Change	-29.19%	145.63%
Operating Profit	$57.43M	$165.3M	$35.30M
YoY Change	62.69%	-576.46%
Interest Expense	-$2.487M	$8.904M	-$5.100M
YoY Change	-51.24%	77.76%
% of Operating Profit	-4.33%	5.39%	-14.45%
Other Income/Expense, Net	$98.00K	$3.754M	$300.0K
YoY Change	-67.33%	1395.62%
Pretax Income	$54.69M	$160.2M	-$36.10M
YoY Change	-251.49%	-505.96%
Income Tax	$5.700M	$25.16M	-$17.60M
% Of Pretax Income	10.42%	15.7%
Net Earnings	$48.99M	$135.0M	-$18.40M
YoY Change	-366.24%	-718.73%
Net Earnings / Revenue	49.43%	40.68%	-13.7%
Basic Earnings Per Share		$0.78
Diluted Earnings Per Share	$253.2K	$0.73	-$97.15K
COMMON SHARES
Basic Shares Outstanding	177.7M shares	173.5M shares
Diluted Shares Outstanding		189.8M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.179B	$1.179B	$519.7M
YoY Change	126.92%	126.92%
Cash & Equivalents	$1.179B	$1.179B	$519.7M
Short-Term Investments	$0.00
Other Short-Term Assets	$7.809M	$7.809M	$5.500M
YoY Change	41.98%	41.98%
Inventory	$38.69M	$38.69M	$32.27M
Prepaid Expenses
Receivables	$51.01M	$51.01M	$3.589M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.277B	$1.277B	$561.0M
YoY Change	127.58%	127.59%	1946.94%
LONG-TERM ASSETS
Property, Plant & Equipment	$610.6M	$611.7M	$502.0M
YoY Change	21.64%	21.61%	982.17%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$2.247M	$1.149M	$1.139M
YoY Change	97.28%	-88.74%	83.12%
Total Long-Term Assets	$612.9M	$612.9M	$513.2M
YoY Change	19.41%	19.4%	589.98%
TOTAL ASSETS
Total Short-Term Assets	$1.277B	$1.277B	$561.0M
Total Long-Term Assets	$612.9M	$612.9M	$513.2M
Total Assets	$1.890B	$1.890B	$1.074B
YoY Change	75.9%	75.9%	955.35%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$35.73M	$35.73M	$16.20M
YoY Change	120.58%	120.58%
Accrued Expenses	$357.0K	$357.0K
YoY Change		-55.38%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$16.34M	$2.403M
YoY Change	-100.0%	-33.86%
Total Short-Term Liabilities	$59.54M	$59.54M	$43.06M
YoY Change	38.28%	38.15%	37.51%
LONG-TERM LIABILITIES
Long-Term Debt	$674.9M	$675.5M	$961.0K
YoY Change	70131.74%	1365.25%
Other Long-Term Liabilities	$7.751M	$41.41M	$1.628M
YoY Change	376.11%	-5.46%	-67.78%
Total Long-Term Liabilities	$821.4M	$716.9M	$177.4M
YoY Change	363.15%	697.43%	100.39%
TOTAL LIABILITIES
Total Short-Term Liabilities	$59.54M	$59.54M	$43.06M
Total Long-Term Liabilities	$821.4M	$716.9M	$177.4M
Total Liabilities	$880.9M	$880.9M	$220.4M
YoY Change	299.68%	299.7%	83.96%
SHAREHOLDERS EQUITY
Retained Earnings	$72.42M		-$62.62M
YoY Change	-215.64%		53.5%
Common Stock	$18.00K		$17.00K
YoY Change	5.88%		142.86%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.009B	$1.009B	$853.9M
YoY Change
Total Liabilities & Shareholders Equity	$1.890B	$1.890B	$1.074B
YoY Change	75.9%	75.9%	955.35%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$48.99M	$135.0M	-$18.40M
YoY Change	-366.24%	-718.73%
Depreciation, Depletion And Amortization	$4.615M	$24.38M	$6.930M
YoY Change	-33.41%	251.78%
Cash From Operating Activities	$31.51M	$102.0M	$4.150M
YoY Change	659.2%	3011.72%
INVESTING ACTIVITIES
Capital Expenditures	-$37.45M	$123.9M	-$22.37M
YoY Change	67.41%	453.73%
Acquisitions
YoY Change
Other Investing Activities	$1.767M	$4.507M	$345.0M
YoY Change	-99.49%
Cash From Investing Activities	-$35.68M	-$119.4M	$322.6M
YoY Change	-111.06%	433.59%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-3.501M	$666.1M	175.2M
YoY Change	-102.0%	27.62%
NET CHANGE
Cash From Operating Activities	31.51M	$102.0M	4.150M
Cash From Investing Activities	-35.68M	-$119.4M	322.6M
Cash From Financing Activities	-3.501M	$666.1M	175.2M
Net Change In Cash	-7.677M	$648.7M	502.0M
YoY Change	-101.53%	29.0%
FREE CASH FLOW
Cash From Operating Activities	$31.51M	$102.0M	$4.150M
Capital Expenditures	-$37.45M	$123.9M	-$22.37M
Free Cash Flow	$68.96M	-$21.90M	$26.52M
YoY Change	160.02%	14.7%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001801368
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Registrant Name EntityRegistrantName	MP Materials Corp. / DE
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssetsNoncurrent
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssetsNoncurrent
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesCurrent
CY2021Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesCurrent
CY2021	dei	Trading Symbol TradingSymbol	MP
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-39277
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	84-4465489
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	6720 Via Austi Parkway, Suite 450
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Las Vegas
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	NV
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	89119
CY2021	dei	City Area Code CityAreaCode	702
CY2021	dei	Local Phone Number LocalPhoneNumber	844-6111
CY2021	dei	Security12b Title Security12bTitle	Common Stock, par value of $0.0001 per share
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	3400000000	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	177524993	shares
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1179297000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	519652000	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	0	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	0	USD
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	51009000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3589000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	38692000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	32272000	USD
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	7809000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5534000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	1276807000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	561047000	USD
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	516000	USD
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	9100000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	610612000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501974000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	758000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1028000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	973000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1139000	USD
CY2021Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	612859000	USD
CY2020Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	513241000	USD
CY2021Q4	us-gaap	Assets Assets	1889666000	USD
CY2020Q4	us-gaap	Assets Assets	1074288000	USD
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	35734000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	16159000	USD
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3463000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	0	USD
CY2021Q4	mp	Long Term Debt Current Maturities Excluding Related Parties LongTermDebtCurrentMaturitiesExcludingRelatedParties	0	USD
CY2020Q4	mp	Long Term Debt Current Maturities Excluding Related Parties LongTermDebtCurrentMaturitiesExcludingRelatedParties	2403000	USD
CY2021Q4	mp	Long Term Debt Current Maturities Related Parties LongTermDebtCurrentMaturitiesRelatedParties	16082000	USD
CY2020Q4	mp	Long Term Debt Current Maturities Related Parties LongTermDebtCurrentMaturitiesRelatedParties	22070000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	254000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	266000	USD
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	4010000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2163000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	59543000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	43061000	USD
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	17615000	USD
CY2020Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	25570000	USD
CY2021Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	16598000	USD
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	16602000	USD
CY2021Q4	mp	Long Term Debt Excluding Current Maturities And Related Parties LongTermDebtExcludingCurrentMaturitiesAndRelatedParties	674927000	USD
CY2020Q4	mp	Long Term Debt Excluding Current Maturities And Related Parties LongTermDebtExcludingCurrentMaturitiesAndRelatedParties	961000	USD
CY2021Q4	mp	Long Term Debt Excluding Current Maturities Related Parties LongTermDebtExcludingCurrentMaturitiesRelatedParties	0	USD
CY2020Q4	mp	Long Term Debt Excluding Current Maturities Related Parties LongTermDebtExcludingCurrentMaturitiesRelatedParties	44380000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	554000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	736000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	104500000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	87473000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	7197000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1628000	USD
CY2021Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	821391000	USD
CY2020Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	177350000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	880934000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	220411000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	450000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	450000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	177816554	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	177816554	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	170719979	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	170719979	shares
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	18000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	17000	USD
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	936299000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	916482000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	72415000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-62622000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1008732000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	853877000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1889666000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1074288000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	328563000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	133697000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	73017000	USD
CY2021	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	3389000	USD
CY2020	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	613000	USD
CY2019	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	394000	USD
CY2021	us-gaap	Revenues Revenues	331952000	USD
CY2020	us-gaap	Revenues Revenues	134310000	USD
CY2019	us-gaap	Revenues Revenues	73411000	USD
CY2021	mp	Cost Of Revenue Excluding Depreciation Depletion And Amortization CostOfRevenueExcludingDepreciationDepletionAndAmortization	76253000	USD
CY2020	mp	Cost Of Revenue Excluding Depreciation Depletion And Amortization CostOfRevenueExcludingDepreciationDepletionAndAmortization	63798000	USD
CY2019	mp	Cost Of Revenue Excluding Depreciation Depletion And Amortization CostOfRevenueExcludingDepreciationDepletionAndAmortization	61261000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	57215000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	26868000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11104000	USD
CY2021	mp	Advanced Projects Development And Other Expense AdvancedProjectsDevelopmentAndOtherExpense	4573000	USD
CY2020	mp	Advanced Projects Development And Other Expense AdvancedProjectsDevelopmentAndOtherExpense	140000	USD
CY2019	mp	Advanced Projects Development And Other Expense AdvancedProjectsDevelopmentAndOtherExpense	0	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	24382000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6931000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4687000	USD
CY2021	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2375000	USD
CY2020	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2255000	USD
CY2019	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2094000	USD
CY2021	us-gaap	Royalty Expense RoyaltyExpense	0	USD
CY2020	us-gaap	Royalty Expense RoyaltyExpense	2406000	USD
CY2019	us-gaap	Royalty Expense RoyaltyExpense	1885000	USD
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	1809000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2021	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2020	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	-66615000	USD
CY2019	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	166607000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	169013000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	81031000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	165345000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-34703000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-7620000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	3754000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	251000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4278000	USD
CY2021	us-gaap	Interest Expense InterestExpense	8904000	USD
CY2020	us-gaap	Interest Expense InterestExpense	5009000	USD
CY2019	us-gaap	Interest Expense InterestExpense	3412000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	160195000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-39461000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-6754000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25158000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-17636000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	135037000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-21825000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-6755000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.78
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.27
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.27
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	173469546	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79690821	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	66556975	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	189844028	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79690821	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	66556975	shares
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	-11267000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-6755000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-18022000	USD
CY2020	mp	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised	53846000	USD
CY2020	mp	Stock Issued During Period Value Acquisitions And Private Placement Financing StockIssuedDuringPeriodValueAcquisitionsAndPrivatePlacementFinancing	509275000	USD
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	326649000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	0	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5014000	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	996000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-21825000	USD
CY2020	us-gaap	Stockholders Equity Other StockholdersEquityOther	64000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	853877000	USD
CY2021	mp	Stock Issued During Period Value Warrants Redeemed StockIssuedDuringPeriodValueWarrantsRedeemed	-1000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	22931000	USD
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	3330000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	135037000	USD
CY2021	us-gaap	Stockholders Equity Other StockholdersEquityOther	-218000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1008732000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	135037000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-21825000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-6755000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	24382000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6931000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4687000	USD
CY2021	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2375000	USD
CY2020	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2255000	USD
CY2019	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2094000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	3401000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-569000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-101000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	3375000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	22931000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	5014000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	0	USD
CY2021	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	7384000	USD
CY2020	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3146000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1001000	USD
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	1809000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2021	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2020	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	-66615000	USD
CY2019	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2021	mp	Contract With Customer Liability Related Parties Revenue Recognized For Debt Principal Reduction ContractWithCustomerLiabilityRelatedPartiesRevenueRecognizedForDebtPrincipalReduction	54828000	USD
CY2020	mp	Contract With Customer Liability Related Parties Revenue Recognized For Debt Principal Reduction ContractWithCustomerLiabilityRelatedPartiesRevenueRecognizedForDebtPrincipalReduction	21312000	USD
CY2019	mp	Contract With Customer Liability Related Parties Revenue Recognized For Debt Principal Reduction ContractWithCustomerLiabilityRelatedPartiesRevenueRecognizedForDebtPrincipalReduction	0	USD
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-17425000	USD
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	17792000	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	47420000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3219000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	145000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	8229000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9224000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9573000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4154000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1794000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	82000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	5530000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-3848000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	6246000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	3463000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	0	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	0	USD
CY2021	mp	Increase Decrease In Contract With Customer Liability Related Parties Refund Liability IncreaseDecreaseInContractWithCustomerLiabilityRelatedPartiesRefundLiability	0	USD
CY2020	mp	Increase Decrease In Contract With Customer Liability Related Parties Refund Liability IncreaseDecreaseInContractWithCustomerLiabilityRelatedPartiesRefundLiability	-2746000	USD
CY2019	mp	Increase Decrease In Contract With Customer Liability Related Parties Refund Liability IncreaseDecreaseInContractWithCustomerLiabilityRelatedPartiesRefundLiability	162000	USD
CY2021	mp	Increase Decrease In Contract With Customer Liability Related Parties IncreaseDecreaseInContractWithCustomerLiabilityRelatedParties	0	USD
CY2020	mp	Increase Decrease In Contract With Customer Liability Related Parties IncreaseDecreaseInContractWithCustomerLiabilityRelatedParties	1933000	USD
CY2019	mp	Increase Decrease In Contract With Customer Liability Related Parties IncreaseDecreaseInContractWithCustomerLiabilityRelatedParties	7061000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-902000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-4546000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1759000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	101971000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3277000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-437000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	123870000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	22370000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2274000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	125000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	7898000	USD
CY2021	mp	Proceeds From Government Reimbursements For Property Plant And Equipment ProceedsFromGovernmentReimbursementsForPropertyPlantAndEquipment	4382000	USD
CY2020	mp	Proceeds From Government Reimbursements For Property Plant And Equipment ProceedsFromGovernmentReimbursementsForPropertyPlantAndEquipment	0	USD
CY2019	mp	Proceeds From Government Reimbursements For Property Plant And Equipment ProceedsFromGovernmentReimbursementsForPropertyPlantAndEquipment	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-119363000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-22370000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	5624000	USD
CY2021	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	690000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	3364000	USD
CY2019	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	7236000	USD
CY2021	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	0	USD
CY2020	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	35450000	USD
CY2019	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	0	USD
CY2021	mp	Proceeds From Business Combination And Private Placement Financing ProceedsFromBusinessCombinationAndPrivatePlacementFinancing	0	USD
CY2020	mp	Proceeds From Business Combination And Private Placement Financing ProceedsFromBusinessCombinationAndPrivatePlacementFinancing	544712000	USD
CY2019	mp	Proceeds From Business Combination And Private Placement Financing ProceedsFromBusinessCombinationAndPrivatePlacementFinancing	0	USD
CY2021	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	2435000	USD
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	20180000	USD
CY2019	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	11332000	USD
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2020	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	40325000	USD
CY2019	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	17749000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3330000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	996000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-377000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-64000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	666109000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	521961000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4096000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	648717000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	502868000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1091000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	532440000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29572000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	28481000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1181157000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	532440000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29572000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1179297000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	519652000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2757000	USD
CY2021Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	1344000	USD
CY2020Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	3688000	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	24000	USD
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	516000	USD
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	9100000	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	26791000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1181157000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	532440000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29572000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	As of December 31, 2021, Shenghe accounted for more than 90% of product sales. Shenghe has entered into an arrangement to purchase substantially all of the Company’s production of rare earth concentrate. As with any contract, there is risk of nonperformance; however, we do not believe that it is reasonably possible that Shenghe would terminate the agreement as it would delay Shenghe’s recovery of non-interest-bearing advance payments that are recognized by the Company as debt. As discussed in <span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline"><a href="#i8ee915207ea04d95a548923ad88c977a_190" style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Note 9, </a><a href="#i8ee915207ea04d95a548923ad88c977a_190" style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">“</a><a href="#i8ee915207ea04d95a548923ad88c977a_190" style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Debt </a><a href="#i8ee915207ea04d95a548923ad88c977a_190" style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Obligations,</a><a href="#i8ee915207ea04d95a548923ad88c977a_190" style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">”</a></span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> full repayment of the obligation will occur by the end of the </span><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">first quarter of 2022 whether through non-cash recoupments from sales or a cash payment based, in part, on the Company’s GAAP net income for the year ended December 31, 2021. See also </span><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline"><a href="#i8ee915207ea04d95a548923ad88c977a_175" style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Note 4, “Relationship and Agreements with Shenghe,”</a></span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> for additional information.</span></div><div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Furthermore, while revenue is generated in the United States, our principal customer conducts its primary operations in China and may transport and sell products in the Chinese market; therefore, the Company’s revenue is affected by Shenghe’s ultimate realized prices in China. In addition, there is an ongoing economic conflict between China and the United States that has resulted in tariffs and trade barriers that may negatively affect the Company’s business and results of operations.</span></div><div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In December 2019, a novel strain of coronavirus (known as “COVID-19”) began to impact the population of China. In March 2020, the outbreak of COVID-19 was declared a global pandemic after growing both in the United States and globally. The responses by governments, societies, and private sector entities to the COVID-19 pandemic, which include temporary closures of businesses, social distancing, travel restrictions, “shelter in place,” and other governmental regulations and various economic stimulus programs, have significantly impacted market volatility and general global economic conditions, including significant business and supply chain disruption as well as broad-based changes in supply and demand.</span></div><div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Since the onset of the COVID-19 pandemic in the first quarter of 2020, we have experienced, at times, significant shipping delays due to congestion and slowdowns at U.S. and international ports caused by shortages in vessels, containers, and truckers, also disrupting the global supply chain. Congestion and slowdowns have affected and may continue to affect the capacity at ports to receive deliveries of products or the loading of shipments onto vessels. Despite these factors, we have not experienced a reduction in production or sales due to the COVID-19 pandemic; however, the COVID-19 pandemic has contributed to certain cost and schedule pressures on the Stage II optimization project. The Company has worked proactively and diligently to adjust working schedules and hours to optimize logistics and shipping, which has thus far prevented a significant negative impact on our product sales and has mitigated certain impacts on Stage II construction and recommissioning progress. However, there can be no assurance that the ongoing COVID-19 pandemic will not have a negative impact on our production, sales, or growth projects in the future.</span></div><div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Furthermore, as the situation continues to evolve, including as a result of new and potential future variants of COVID-19 (such as the Delta and Omicron variants), the possibility of federal or state mandates on vaccinations, or other factors that may affect international shipping and logistics or involve responses to government actions such as strikes or other disruptions, it is impossible to predict the effect and ultimate impact of the COVID-19 pandemic on the Company’s business and results of operations. The extent and duration of any business disruptions, and related financial impact, cannot be estimated at this time.</span></div>
CY2021	us-gaap	Use Of Estimates UseOfEstimates	The preparation of the Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect (i) the reported amounts of assets and liabilities, (ii) the disclosure of contingent assets and liabilities at the date of the Consolidated Financial Statements, and (iii) the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions relate to the useful lives and recoverability of long-lived assets (such as the effects of mineral reserves and cash flows from operating the mine in determining the life of the mine); uncertain tax positions; the valuation allowance of deferred tax assets; asset retirement and environmental obligations; and determining the fair value of assets and liabilities in acquisitions and financial instruments in connection with transactions that require initial measurement to be at fair value. Management bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Accordingly, actual results may differ from those estimates.
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	0	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	0	USD
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain amounts in prior periods have been reclassified to conform to the current year presentation.
CY2020Q4	mp	Conversion Of Stock Shares Issued Conversion Ratio ConversionOfStockSharesIssuedConversionRatio	59908.35
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	149308637	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	149308637	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	149308637	shares
CY2020Q4	mp	Business Combination And Asset Acquisition Acquisition And Transaction Costs BusinessCombinationAndAssetAcquisitionAcquisitionAndTransactionCosts	33500000	USD
CY2020Q4	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	28200000	USD
CY2020Q4	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3300000	USD
CY2017Q2	mp	Percentage Of Preferred Interest In Company Held By Principal Customer And Related Party PercentageOfPreferredInterestInCompanyHeldByPrincipalCustomerAndRelatedParty	0.0999
CY2020	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	-66600000	USD
CY2020Q4	mp	Contract With Customer Liability Related Parties Deferred Revenue ContractWithCustomerLiabilityRelatedPartiesDeferredRevenue	0	USD
CY2019Q4	mp	Contract With Customer Liability Related Parties Deferred Revenue ContractWithCustomerLiabilityRelatedPartiesDeferredRevenue	35543000	USD
CY2018Q4	mp	Contract With Customer Liability Related Parties Deferred Revenue ContractWithCustomerLiabilityRelatedPartiesDeferredRevenue	28482000	USD
CY2021	mp	Contract With Customer Liability Related Parties Deferred Revenue Additions ContractWithCustomerLiabilityRelatedPartiesDeferredRevenueAdditions	0	USD
CY2020	mp	Contract With Customer Liability Related Parties Deferred Revenue Additions ContractWithCustomerLiabilityRelatedPartiesDeferredRevenueAdditions	11050000	USD
CY2019	mp	Contract With Customer Liability Related Parties Deferred Revenue Additions ContractWithCustomerLiabilityRelatedPartiesDeferredRevenueAdditions	10311000	USD
CY2021	mp	Contract With Customer Liability Related Parties Revenue Recognized ContractWithCustomerLiabilityRelatedPartiesRevenueRecognized	0	USD
CY2020	mp	Contract With Customer Liability Related Parties Revenue Recognized ContractWithCustomerLiabilityRelatedPartiesRevenueRecognized	9117000	USD
CY2019	mp	Contract With Customer Liability Related Parties Revenue Recognized ContractWithCustomerLiabilityRelatedPartiesRevenueRecognized	3250000	USD
CY2021	mp	Contract With Customer Liability Related Parties Derecognition From Contract Modification ContractWithCustomerLiabilityRelatedPartiesDerecognitionFromContractModification	0	USD
CY2020	mp	Contract With Customer Liability Related Parties Derecognition From Contract Modification ContractWithCustomerLiabilityRelatedPartiesDerecognitionFromContractModification	37476000	USD
CY2019	mp	Contract With Customer Liability Related Parties Derecognition From Contract Modification ContractWithCustomerLiabilityRelatedPartiesDerecognitionFromContractModification	0	USD
CY2021Q4	mp	Contract With Customer Liability Related Parties Deferred Revenue ContractWithCustomerLiabilityRelatedPartiesDeferredRevenue	0	USD
CY2020Q4	mp	Contract With Customer Liability Related Parties Deferred Revenue ContractWithCustomerLiabilityRelatedPartiesDeferredRevenue	0	USD
CY2019Q4	mp	Contract With Customer Liability Related Parties Deferred Revenue ContractWithCustomerLiabilityRelatedPartiesDeferredRevenue	35543000	USD
CY2019Q4	mp	Contract With Customer Liability Deferred Revenue Current ContractWithCustomerLiabilityDeferredRevenueCurrent	6600000	USD
CY2018Q4	mp	Contract With Customer Liability Deferred Revenue Current ContractWithCustomerLiabilityDeferredRevenueCurrent	3300000	USD
CY2021Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	1344000	USD
CY2020Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	3688000	USD
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	516000	USD
CY2020Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	9100000	USD
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	1860000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	12788000	USD
CY2021Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	10711000	USD
CY2020Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	5124000	USD
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	25574000	USD
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	24524000	USD
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	2407000	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	2624000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	38692000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	32272000	USD
CY2021Q2	us-gaap	Inventory Write Down InventoryWriteDown	1800000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	650241000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	516866000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	39629000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	14892000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	610612000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	501974000	USD
CY2021	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	138000000	USD
CY2020	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	26200000	USD
CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	2800000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	300000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	200000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
CY2021Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9400000	USD
CY2020Q4	mp	Proceeds From Government Awards For Property Plant And Equipment ProceedsFromGovernmentAwardsForPropertyPlantAndEquipment	9600000	USD
CY2021	mp	Proceeds From Government Reimbursements For Property Plant And Equipment ProceedsFromGovernmentReimbursementsForPropertyPlantAndEquipment	4400000	USD
CY2021Q4	mp	Technology Investment Agreement Stage Ii Optimization Contribution TechnologyInvestmentAgreementStageIIOptimizationContribution	5200000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	-8700000	USD
CY2021	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Period Increase Decrease AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentPeriodIncreaseDecrease	-1100000	USD
CY2021	us-gaap	Depreciation Depreciation	6825000	USD
CY2020	us-gaap	Depreciation Depreciation	4702000	USD
CY2019	us-gaap	Depreciation Depreciation	4414000	USD
CY2021	us-gaap	Depletion Depletion	17200000	USD
CY2020	us-gaap	Depletion Depletion	1961000	USD
CY2019	us-gaap	Depletion Depletion	114000	USD
CY2021	mp	Increase Decrease In Depletion IncreaseDecreaseInDepletion	-1500000	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	15073000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	0	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	674927000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	3364000	USD
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2403000	USD
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	674927000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	961000	USD
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	9168000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	5171000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	3412000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	264000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	162000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
CY2021	us-gaap	Interest Expense InterestExpense	8904000	USD
CY2020	us-gaap	Interest Expense InterestExpense	5009000	USD
CY2019	us-gaap	Interest Expense InterestExpense	3412000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P91M
CY2021Q4	mp	Lessee Operating Lease Number Of Renewal Options LesseeOperatingLeaseNumberOfRenewalOptions	1	renewalOption
CY2021Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2021Q4	mp	Annual Base Rent AnnualBaseRent	1200000	USD
CY2021Q4	mp	Tenant Improvement Allowance TenantImprovementAllowance	1800000	USD
CY2021Q4	us-gaap	Prepaid Rent PrepaidRent	200000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	780000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	2466000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	218000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	357000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	268000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	159000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	60000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	50000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	42000	USD
CY2021	mp	Finance Lease Cost FinanceLeaseCost	417000	USD
CY2020	mp	Finance Lease Cost FinanceLeaseCost	318000	USD
CY2019	mp	Finance Lease Cost FinanceLeaseCost	201000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1163000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1246000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	913000	USD
CY2021	us-gaap	Lease Cost LeaseCost	2360000	USD
CY2020	us-gaap	Lease Cost LeaseCost	4030000	USD
CY2019	us-gaap	Lease Cost LeaseCost	1332000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	790000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	2432000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	223000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	60000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	50000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	42000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	278000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	249000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	121000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2932000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	549000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	88000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	724000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	671000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y3M18D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y8M12D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y6M
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.052
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.052
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.063
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.067
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	361000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	280000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	359000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	137000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	100000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	1000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	361000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	877000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	69000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	357000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	808000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	340000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1090000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	357000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	761000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	357000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	357000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1118000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	758000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1028000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	254000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	266000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	554000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	736000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	808000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1002000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-9800000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	-8700000	USD
CY2021	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Period Increase Decrease AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentPeriodIncreaseDecrease	-1100000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	25646000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Discount Rate AccrualForEnvironmentalLossContingenciesDiscountRate	0.0293
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	23966000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	199000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	75000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1876000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1755000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	213000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	USD
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-9779000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	0	USD
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	17757000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	25646000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	100000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	100000	USD
CY2021Q4	mp	Asset Retirement Obligations Estimated Undiscounted Cash Flows To Satisfy Obligation AssetRetirementObligationsEstimatedUndiscountedCashFlowsToSatisfyObligation	167300000	USD
CY2020Q4	mp	Asset Retirement Obligations Estimated Undiscounted Cash Flows To Satisfy Obligation AssetRetirementObligationsEstimatedUndiscountedCashFlowsToSatisfyObligation	142300000	USD
CY2021Q4	mp	Asset Retirement Obligation Closure And Reclamation Obligations Financial Assurances AssetRetirementObligationClosureAndReclamationObligationsFinancialAssurances	39000000	USD
CY2020Q4	mp	Asset Retirement Obligation Closure And Reclamation Obligations Financial Assurances AssetRetirementObligationClosureAndReclamationObligationsFinancialAssurances	38400000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	27700000	USD
CY2021	mp	Accrual For Environmental Loss Contingencies Remediation Term AccrualForEnvironmentalLossContingenciesRemediationTerm	P26Y
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	28200000	USD
CY2021Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	500000	USD
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	500000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due Within One Year AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear	504000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Second Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear	520000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Third Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear	536000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fourth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear	552000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear	569000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due After Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear	24998000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	27679000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Discount AccrualForEnvironmentalLossContingenciesDiscount	10576000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	17103000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4818000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2915000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	156000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7733000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	156000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	15851000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-14088000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1574000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3704000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17425000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-17792000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25158000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-17636000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1000	USD
CY2021	mp	Adjustments To Additional Paid In Capital Business Combination Adjustment To Proceeds For Deductible Expenditures AdjustmentsToAdditionalPaidInCapitalBusinessCombinationAdjustmentToProceedsForDeductibleExpenditures	400000	USD
CY2020	mp	Adjustments To Additional Paid In Capital Business Combination Adjustment To Proceeds For Deductible Expenditures AdjustmentsToAdditionalPaidInCapitalBusinessCombinationAdjustmentToProceedsForDeductibleExpenditures	4700000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	160195000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-39461000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-6754000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	33641000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-8287000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-1419000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.027
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4288000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.043
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1729000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.068
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-459000	USD
CY2021	mp	Effective Income Tax Rate Reconciliation Officers Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationOfficersCompensationLimitationPercent	0.017
CY2021	mp	Effective Income Tax Rate Reconciliation Officers Compensation Limitation Amount EffectiveIncomeTaxRateReconciliationOfficersCompensationLimitationAmount	2638000	USD
CY2020	mp	Effective Income Tax Rate Reconciliation Officers Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationOfficersCompensationLimitationPercent	-0.012
CY2020	mp	Effective Income Tax Rate Reconciliation Officers Compensation Limitation Amount EffectiveIncomeTaxRateReconciliationOfficersCompensationLimitationAmount	478000	USD
CY2019	mp	Effective Income Tax Rate Reconciliation Officers Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationOfficersCompensationLimitationPercent	0
CY2019	mp	Effective Income Tax Rate Reconciliation Officers Compensation Limitation Amount EffectiveIncomeTaxRateReconciliationOfficersCompensationLimitationAmount	0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.061
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-9663000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0.011
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-425000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	0	USD
CY2021	mp	Effective Income Tax Rate Reconciliation Paycheck Protection Loan Forgiveness Percent EffectiveIncomeTaxRateReconciliationPaycheckProtectionLoanForgivenessPercent	-0.005
CY2021	mp	Effective Income Tax Rate Reconciliation Paycheck Protection Loan Forgiveness Amount EffectiveIncomeTaxRateReconciliationPaycheckProtectionLoanForgivenessAmount	714000	USD
CY2020	mp	Effective Income Tax Rate Reconciliation Paycheck Protection Loan Forgiveness Percent EffectiveIncomeTaxRateReconciliationPaycheckProtectionLoanForgivenessPercent	0
CY2020	mp	Effective Income Tax Rate Reconciliation Paycheck Protection Loan Forgiveness Amount EffectiveIncomeTaxRateReconciliationPaycheckProtectionLoanForgivenessAmount	0	USD
CY2019	mp	Effective Income Tax Rate Reconciliation Paycheck Protection Loan Forgiveness Percent EffectiveIncomeTaxRateReconciliationPaycheckProtectionLoanForgivenessPercent	0
CY2019	mp	Effective Income Tax Rate Reconciliation Paycheck Protection Loan Forgiveness Amount EffectiveIncomeTaxRateReconciliationPaycheckProtectionLoanForgivenessAmount	0	USD
CY2021	mp	Effective Income Tax Rate Reconciliation Deduction Foreign Derived Intangible Income Percent EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomePercent	0.018
CY2021	mp	Effective Income Tax Rate Reconciliation Deduction Foreign Derived Intangible Income Amount EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomeAmount	2886000	USD
CY2020	mp	Effective Income Tax Rate Reconciliation Deduction Foreign Derived Intangible Income Percent EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomePercent	0
CY2020	mp	Effective Income Tax Rate Reconciliation Deduction Foreign Derived Intangible Income Amount EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomeAmount	0	USD
CY2019	mp	Effective Income Tax Rate Reconciliation Deduction Foreign Derived Intangible Income Percent EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomePercent	0
CY2019	mp	Effective Income Tax Rate Reconciliation Deduction Foreign Derived Intangible Income Amount EffectiveIncomeTaxRateReconciliationDeductionForeignDerivedIntangibleIncomeAmount	0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.012
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	1975000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	-67000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.003
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	110000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.005
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	35000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.005
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	821000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.237
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-9333000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.255
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1720000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-925000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.039
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1550000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.018
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	124000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.157
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25158000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.447
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-17636000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1000	USD
CY2021Q4	mp	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement And Environmental Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementAndEnvironmentalObligations	8744000	USD
CY2020Q4	mp	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement And Environmental Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementAndEnvironmentalObligations	10727000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	636000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	860000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	2174000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	4248000	USD
CY2021Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	0	USD
CY2020Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	63000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	6695000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	1667000	USD
CY2021Q4	mp	Deferred Tax Assets Offtake Advances Net Of Debt Discount DeferredTaxAssetsOfftakeAdvancesNetOfDebtDiscount	4034000	USD
CY2020Q4	mp	Deferred Tax Assets Offtake Advances Net Of Debt Discount DeferredTaxAssetsOfftakeAdvancesNetOfDebtDiscount	16665000	USD
CY2021Q4	mp	Deferred Tax Assets Warrants DeferredTaxAssetsWarrants	2329000	USD
CY2020Q4	mp	Deferred Tax Assets Warrants DeferredTaxAssetsWarrants	10087000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2688000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	536000	USD
CY2021Q4	mp	Deferred Tax Assets Organization Costs DeferredTaxAssetsOrganizationCosts	860000	USD
CY2020Q4	mp	Deferred Tax Assets Organization Costs DeferredTaxAssetsOrganizationCosts	943000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	764000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	28924000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	45796000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3192000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2370000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	25732000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	43426000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	14077000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7653000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	1192000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	273000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	9938000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	13260000	USD
CY2021Q4	mp	Deferred Tax Liabilities Mineral Rights DeferredTaxLiabilitiesMineralRights	104735000	USD
CY2020Q4	mp	Deferred Tax Liabilities Mineral Rights DeferredTaxLiabilitiesMineralRights	109174000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	290000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	539000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	130232000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	130899000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	104500000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	87473000	USD
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-1000000	USD
CY2020Q4	mp	Capital Stock Authorized CapitalStockAuthorized	221000000	shares
CY2020Q4	mp	Capital Stock Authorized CapitalStockAuthorized	500000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	450000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	149308637	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	149308637	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	149308637	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2215637	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	14.54
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1044781	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	41.24
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	271828	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	22.19
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	118910	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	15.12
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2869680	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	23.51
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	48400000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y3M18D
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	10900000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	2900000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22900000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5000000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3200000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1300000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	0	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	173469546	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79690821	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	66556975	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	2840624	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	11997860	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	189844028	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79690821	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	66556975	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	135037000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-21825000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-6755000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	173469546	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	79690821	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	66556975	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.78
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.27
CY2021	us-gaap	Net Income Loss NetIncomeLoss	135037000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-21825000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-6755000	USD
CY2021	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	3366000	USD
CY2020	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	USD
CY2019	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	0	USD
CY2021	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	138403000	USD
CY2020	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	-21825000	USD
CY2019	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	-6755000	USD
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	189844028	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79690821	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	66556975	shares
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.27
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.157
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	18322	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	13710636	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1204000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	3089000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	926000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	4172000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	255000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1000	USD
CY2021	mp	Capital Expenditures Acquired On Seller Financed Equipment Notes CapitalExpendituresAcquiredOnSellerFinancedEquipmentNotes	9407000	USD
CY2020	mp	Capital Expenditures Acquired On Seller Financed Equipment Notes CapitalExpendituresAcquiredOnSellerFinancedEquipmentNotes	1216000	USD
CY2019	mp	Capital Expenditures Acquired On Seller Financed Equipment Notes CapitalExpendituresAcquiredOnSellerFinancedEquipmentNotes	569000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	14082000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4054000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	USD
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	USD
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	324125000	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed1 NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1	0	USD
CY2021	mp	Notes Reduction Due To Revenue Recognized In Exchange NotesReductionDueToRevenueRecognizedInExchange	54802000	USD
CY2020	mp	Notes Reduction Due To Revenue Recognized In Exchange NotesReductionDueToRevenueRecognizedInExchange	21312000	USD
CY2019	mp	Notes Reduction Due To Revenue Recognized In Exchange NotesReductionDueToRevenueRecognizedInExchange	0	USD
CY2021	mp	Increase Decrease In Estimates Of Asset Retirement Costs IncreaseDecreaseInEstimatesOfAssetRetirementCosts	-8713000	USD
CY2020	mp	Increase Decrease In Estimates Of Asset Retirement Costs IncreaseDecreaseInEstimatesOfAssetRetirementCosts	0	USD
CY2019	mp	Increase Decrease In Estimates Of Asset Retirement Costs IncreaseDecreaseInEstimatesOfAssetRetirementCosts	0	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	3401000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	dei	Auditor Name AuditorName	KPMG LLP
CY2021	dei	Auditor Location AuditorLocation	Denver, CO
CY2021	dei	Auditor Firm AuditorFirmId	185

Files In Submission

Name	View Source	Status
0001801368-22-000010-index-headers.html	Edgar Link	pending
0001801368-22-000010-index.html	Edgar Link	pending
0001801368-22-000010.txt	Edgar Link	pending
0001801368-22-000010-xbrl.zip	Edgar Link	pending
d215279dex961.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
g215279dsp001.jpg	Edgar Link	pending
g215279dsp025.jpg	Edgar Link	pending
g215279dsp031.jpg	Edgar Link	pending
g215279dsp038.jpg	Edgar Link	pending
g215279dsp039.jpg	Edgar Link	pending
g215279dsp056.jpg	Edgar Link	pending
g215279dsp057.jpg	Edgar Link	pending
g215279dsp065.jpg	Edgar Link	pending
g215279dsp072.jpg	Edgar Link	pending
g215279dsp073.jpg	Edgar Link	pending
g215279dsp074.jpg	Edgar Link	pending
g215279dsp075.jpg	Edgar Link	pending
g215279dsp081.jpg	Edgar Link	pending
g215279dsp082.jpg	Edgar Link	pending
g215279dsp083.jpg	Edgar Link	pending
g215279dsp087.jpg	Edgar Link	pending
g215279dsp088.jpg	Edgar Link	pending
g215279dsp094a.jpg	Edgar Link	pending
g215279dsp094b.jpg	Edgar Link	pending
g215279dsp097.jpg	Edgar Link	pending
g215279dsp099.jpg	Edgar Link	pending
g215279dsp100.jpg	Edgar Link	pending
g215279dsp106.jpg	Edgar Link	pending
g215279dsp107.jpg	Edgar Link	pending
g215279dsp109.jpg	Edgar Link	pending
g215279dsp111.jpg	Edgar Link	pending
g215279dsp112.jpg	Edgar Link	pending
g215279dsp114.jpg	Edgar Link	pending
g215279dsp115.jpg	Edgar Link	pending
g215279dsp118.jpg	Edgar Link	pending
g215279dsp119.jpg	Edgar Link	pending
g215279dsp120.jpg	Edgar Link	pending
g215279dsp121.jpg	Edgar Link	pending
g215279dsp123.jpg	Edgar Link	pending
g215279dsp124.jpg	Edgar Link	pending
g215279dsp125.jpg	Edgar Link	pending
g215279dsp126.jpg	Edgar Link	pending
g215279dsp128.jpg	Edgar Link	pending
g215279dsp129.jpg	Edgar Link	pending
g215279dsp133.jpg	Edgar Link	pending
g215279dsp137.jpg	Edgar Link	pending
g215279dsp145.jpg	Edgar Link	pending
g215279dsp146.jpg	Edgar Link	pending
g215279dsp150.jpg	Edgar Link	pending
g215279dsp151.jpg	Edgar Link	pending
g215279dsp153.jpg	Edgar Link	pending
g215279dsp160.jpg	Edgar Link	pending
g215279dsp161.jpg	Edgar Link	pending
g215279dsp162.jpg	Edgar Link	pending
g215279dsp163.jpg	Edgar Link	pending
g215279dsp164a.jpg	Edgar Link	pending
g215279dsp164b.jpg	Edgar Link	pending
g215279dsp165a.jpg	Edgar Link	pending
g215279dsp165b.jpg	Edgar Link	pending
g215279dsp166a.jpg	Edgar Link	pending
g215279dsp166b.jpg	Edgar Link	pending
g215279dsp168.jpg	Edgar Link	pending
g215279dsp171.jpg	Edgar Link	pending
g215279dsp182.jpg	Edgar Link	pending
g215279dsp192.jpg	Edgar Link	pending
g215279dsp195.jpg	Edgar Link	pending
g215279dsp200.jpg	Edgar Link	pending
g215279dsp201.jpg	Edgar Link	pending
g215279dsp202a.jpg	Edgar Link	pending
g215279dsp202b.jpg	Edgar Link	pending
g215279dsp203.jpg	Edgar Link	pending
g215279dsp204a.jpg	Edgar Link	pending
g215279dsp204b.jpg	Edgar Link	pending
g215279dsp205.jpg	Edgar Link	pending
g215279dsp206.jpg	Edgar Link	pending
g215279dsp207.jpg	Edgar Link	pending
g215279dsp209.jpg	Edgar Link	pending
g215279dsp211.jpg	Edgar Link	pending
g215279dsp214.jpg	Edgar Link	pending
g215279dsp217.jpg	Edgar Link	pending
g215279dsp220.jpg	Edgar Link	pending
g215279dsp236.jpg	Edgar Link	pending
g215279dsp242.jpg	Edgar Link	pending
g215279dsp243a.jpg	Edgar Link	pending
g215279dsp243b.jpg	Edgar Link	pending
g215279dsp244a.jpg	Edgar Link	pending
g215279dsp244b.jpg	Edgar Link	pending
g215279dsp246a.jpg	Edgar Link	pending
g215279dsp246b.jpg	Edgar Link	pending
g215279dsp247.jpg	Edgar Link	pending
g215279dsp263.jpg	Edgar Link	pending
g215279dsp264.jpg	Edgar Link	pending
g215279dsp265.jpg	Edgar Link	pending
g215279dsp266.jpg	Edgar Link	pending
g215279dsp267.jpg	Edgar Link	pending
g215279dsp268.jpg	Edgar Link	pending
g215279dsp269.jpg	Edgar Link	pending
g215279dsp270.jpg	Edgar Link	pending
g215279dsp271.jpg	Edgar Link	pending
g215279dsp272.jpg	Edgar Link	pending
g215279dsp273.jpg	Edgar Link	pending
g215279dsp274.jpg	Edgar Link	pending
g215279dsp275.jpg	Edgar Link	pending
g215279dsp276.jpg	Edgar Link	pending
g215279dsp277.jpg	Edgar Link	pending
g215279dsp278.jpg	Edgar Link	pending
g215279dsp279.jpg	Edgar Link	pending
g215279dsp280.jpg	Edgar Link	pending
g215279dsp281.jpg	Edgar Link	pending
g215279dsp283.jpg	Edgar Link	pending
g215279dsp284.jpg	Edgar Link	pending
g215279dsp285.jpg	Edgar Link	pending
g215279dsp286.jpg	Edgar Link	pending
g215279dsp287.jpg	Edgar Link	pending
g215279g11i11.jpg	Edgar Link	pending
g215279g22i11.jpg	Edgar Link	pending
g215279g22i22.jpg	Edgar Link	pending
g215279g33i33.jpg	Edgar Link	pending
g215279g44i44.jpg	Edgar Link	pending
g215279g55i55.jpg	Edgar Link	pending
g215279g66i66.jpg	Edgar Link	pending
g215279g77i77.jpg	Edgar Link	pending
g215279g88i88.jpg	Edgar Link	pending
g215279g99i99.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
mp-20211231.htm	Edgar Link	pending
mp-20211231.xsd	Edgar Link	pending
mp-20211231_cal.xml	Edgar Link	unprocessable
mp-20211231_def.xml	Edgar Link	unprocessable
mp-20211231_g1.jpg	Edgar Link	pending
mp-20211231_g2.jpg	Edgar Link	pending
mp-20211231_g3.jpg	Edgar Link	pending
mp-20211231_htm.xml	Edgar Link	completed
mp-20211231_lab.xml	Edgar Link	unprocessable
mp-20211231_pre.xml	Edgar Link	unprocessable
mpmcexhibit1015123121.htm	Edgar Link	pending
mpmcexhibit211123121.htm	Edgar Link	pending
mpmcexhibit231123121.htm	Edgar Link	pending
mpmcexhibit232123121srk.htm	Edgar Link	pending
mpmcexhibit232123121srk001.jpg	Edgar Link	pending
mpmcexhibit232123121srk002.jpg	Edgar Link	pending
mpmcexhibit233123121cru.htm	Edgar Link	pending
mpmcexhibit233123121cru001.jpg	Edgar Link	pending
mpmcexhibit234123121sgs.htm	Edgar Link	pending
mpmcexhibit234123121sgs001.jpg	Edgar Link	pending
mpmcexhibit311123121.htm	Edgar Link	pending
mpmcexhibit312123121.htm	Edgar Link	pending
mpmcexhibit321123121.htm	Edgar Link	pending
mpmcexhibit322123121.htm	Edgar Link	pending
mpmcexhibit41123121.htm	Edgar Link	pending
mpmcexhibit951123121.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$MP
MP Materials Corp. / DE Stock $mp

2021 Q4 Form 10-K Financial Statement

#000180136822000010 Filed on February 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MP MP Materials Corp. / DE Stock $mp

2021 Q4 Form 10-K Financial Statement

#000180136822000010 Filed on February 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MP
MP Materials Corp. / DE Stock $mp