$MTRN
Materion Corp Stock $mtrn

$mtrn Overview Financials Valuation SEC Filings Company Website

2021 Q1 Form 10-K Financial Statement

#000110465721000010 Filed on February 18, 2021

Income Statement

Concept	2021 Q1	2019 Q4	2019 Q3
Revenue		$280.2M	$17.16M
YoY Change		-6.01%	29.35%
Cost Of Revenue		$225.7M	$239.4M
YoY Change		-2.64%	3.06%
Gross Profit		$54.48M	$66.61M
YoY Change		-17.52%	2.57%
Gross Profit Margin		19.45%	388.12%
Selling, General & Admin		$30.90M	$35.81M
YoY Change		-18.04%	-7.87%
% of Gross Profit		56.72%	53.77%
Research & Development		$5.200M	$5.262M
YoY Change		52.94%	23.81%
% of Gross Profit		9.54%	7.9%
Depreciation & Amortization		$9.100M	$9.400M
YoY Change		1.11%	14.63%
% of Gross Profit		16.7%	14.11%
Operating Expenses		$37.90M	$41.07M
YoY Change		-16.52%	-4.75%
Operating Profit		$16.05M	$7.663M
YoY Change		-22.29%	-58.95%
Interest Expense		$0.00	$436.0K
YoY Change		-100.0%	-28.87%
% of Operating Profit		0.0%	5.69%
Other Income/Expense, Net		$100.0K	-$127.0K
YoY Change		-100.24%	-84.13%
Pretax Income		$15.93M	$7.100M
YoY Change		-159.42%	-58.85%
Income Tax		$1.579M	$2.578M
% Of Pretax Income		9.92%	36.31%
Net Earnings		$14.35M	$4.522M
YoY Change		-168.88%	-77.35%
Net Earnings / Revenue		5.12%	26.35%
Basic Earnings Per Share		$0.70	$0.22
Diluted Earnings Per Share		$0.69	$0.22
COMMON SHARES
Basic Shares Outstanding	20.33M shares		20.40M shares
Diluted Shares Outstanding			20.68M shares

Balance Sheet

Concept	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$125.0M	$94.50M
YoY Change	77.05%	76.31%
Cash & Equivalents	$125.0M	$94.53M
Short-Term Investments
Other Short-Term Assets	$21.70M	$23.70M
YoY Change	-6.87%	19.1%
Inventory	$236.3M	$192.0M
Prepaid Expenses
Receivables	$154.8M	$165.5M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$537.7M	$475.6M
YoY Change	22.4%	16.77%
LONG-TERM ASSETS
Property, Plant & Equipment	$232.3M	$234.2M
YoY Change	-7.47%	-7.68%
Goodwill	$79.01M	$78.96M
YoY Change	-12.85%	-13.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$17.94M	$17.45M
YoY Change	147.89%	145.32%
Total Long-Term Assets	$360.7M	$364.2M
YoY Change	-10.71%	-4.41%
TOTAL ASSETS
Total Short-Term Assets	$537.7M	$475.6M
Total Long-Term Assets	$360.7M	$364.2M
Total Assets	$898.4M	$839.8M
YoY Change	6.54%	6.53%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$43.21M	$43.68M
YoY Change	-12.93%	2.25%
Accrued Expenses	$32.48M	$35.55M
YoY Change	-2.47%	22.86%
Deferred Revenue
YoY Change
Short-Term Debt	$868.0K	$857.0K
YoY Change	5.47%	6.2%
Long-Term Debt Due	$868.0K	$2.100M
YoY Change	5.47%	162.5%
Total Short-Term Liabilities	$122.4M	$127.0M
YoY Change	-12.41%	0.3%
LONG-TERM LIABILITIES
Long-Term Debt	$1.260M	$1.467M
YoY Change	-39.01%	-37.07%
Other Long-Term Liabilities	$11.56M	$11.02M
YoY Change	-21.7%	-20.3%
Total Long-Term Liabilities	$12.82M	$12.49M
YoY Change	-23.83%	-22.72%
TOTAL LIABILITIES
Total Short-Term Liabilities	$122.4M	$127.0M
Total Long-Term Liabilities	$12.82M	$12.49M
Total Liabilities	$135.3M	$139.5M
YoY Change	-13.63%	-2.3%
SHAREHOLDERS EQUITY
Retained Earnings	$625.0M	$577.4M
YoY Change	13.96%	1.06%
Common Stock	$249.7M	$247.7M
YoY Change	6.38%	6.36%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$186.8M	$187.5M
YoY Change	6.51%	7.41%
Treasury Stock Shares	6.744M shares
Shareholders Equity	$645.7M	$597.8M
YoY Change
Total Liabilities & Shareholders Equity	$898.4M	$839.8M
YoY Change	12.26%	6.53%

Cashflow Statement

Concept	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	$14.35M	$4.522M
YoY Change	-168.88%	-77.35%
Depreciation, Depletion And Amortization	$9.100M	$9.400M
YoY Change	1.11%	14.63%
Cash From Operating Activities	$39.70M	$29.50M
YoY Change	45.96%	48.24%
INVESTING ACTIVITIES
Capital Expenditures	-$6.100M	-$4.400M
YoY Change	3.39%	-4.35%
Acquisitions
YoY Change
Other Investing Activities	-$300.0K	-$300.0K
YoY Change	-66.67%	-83.33%
Cash From Investing Activities	-$6.400M	-$4.700M
YoY Change	-5.88%	-26.56%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-2.900M	-4.900M
YoY Change	-9.37%	81.48%
NET CHANGE
Cash From Operating Activities	39.70M	29.50M
Cash From Investing Activities	-6.400M	-4.700M
Cash From Financing Activities	-2.900M	-4.900M
Net Change In Cash	30.40M	19.90M
YoY Change	76.74%	84.26%
FREE CASH FLOW
Cash From Operating Activities	$39.70M	$29.50M
Capital Expenditures	-$6.100M	-$4.400M
Free Cash Flow	$45.80M	$33.90M
YoY Change	38.37%	38.37%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
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CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
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CY2019Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
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CY2020	mtrn	Lease Hold Improvements Useful Life Maximum LeaseHoldImprovementsUsefulLifeMaximum	Life of lease
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CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	1-15885
CY2020	dei	Entity Registrant Name EntityRegistrantName	MATERION CORPORATION
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OH
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	34-1919973
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	6070 Parkland Blvd
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Mayfield Heights
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	OH
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CY2020	dei	City Area Code CityAreaCode	216
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CY2020	dei	Security12b Title Security12bTitle	Common Stock, no par value
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CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2020	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	2935000	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-2538000	USD
CY2018	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	477000	USD
CY2020	mtrn	Increase Decrease In Interest And Taxes Payable IncreaseDecreaseInInterestAndTaxesPayable	-157000	USD
CY2019	mtrn	Increase Decrease In Interest And Taxes Payable IncreaseDecreaseInInterestAndTaxesPayable	-805000	USD
CY2018	mtrn	Increase Decrease In Interest And Taxes Payable IncreaseDecreaseInInterestAndTaxesPayable	435000	USD
CY2020	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	54103000	USD
CY2019	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	4733000	USD
CY2018	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	0	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	0	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-42000000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	378000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-1300000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1616000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	101057000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	99222000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	76374000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	130715000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	67274000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24251000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	27702000	USD
CY2020	mtrn	Payments For Mine Development PaymentsForMineDevelopment	0	USD
CY2019	mtrn	Payments For Mine Development PaymentsForMineDevelopment	2277000	USD
CY2018	mtrn	Payments For Mine Development PaymentsForMineDevelopment	6558000	USD
CY2020	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	3249000	USD
CY2019	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	0	USD
CY2018	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	0	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	33000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	44000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	432000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-194707000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-26484000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-33828000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	34000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	20634000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	823000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	777000	USD
CY2020	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	2213000	USD
CY2019	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1200000	USD
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	861000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9257000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	8856000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	8389000	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2130000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	6766000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	199000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	422000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2221000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4846000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3156000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-7091000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18054000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13605000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1612000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-322000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-140000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-99129000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	54362000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	28801000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	125007000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70645000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	41844000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	25878000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	125007000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70645000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	25878000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	125007000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	166447000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	154751000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	250778000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	32477000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1898000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1342000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	236253000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	20896000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	21736000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	463999000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	537747000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	3134000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1666000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	998312000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	916965000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	688626000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	684689000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	309686000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	232276000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	62089000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	23413000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	54672000	USD
CY2020Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	7713000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6380000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	19364000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	17937000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	144916000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	79011000	USD
CY2020Q4	us-gaap	Assets Assets	1057860000	USD
CY2019Q4	us-gaap	Assets Assets	898430000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1937000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	868000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	55640000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	43206000	USD
CY2020Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	18809000	USD
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	41167000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	40887000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	13104000	USD
CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	3380000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	126884000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	122440000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	14313000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	11560000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	56761000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	18091000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	20539000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	17424000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	41877000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	32466000	USD
CY2020Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	86761000	USD
CY2019Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	32891000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	2689000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	3451000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	15864000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	36542000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1260000	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	258642000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	249674000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	631058000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	624954000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	199187000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	186845000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-38639000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-45462000	USD
CY2020Q4	us-gaap	Other Additional Capital OtherAdditionalCapital	3756000	USD
CY2019Q4	us-gaap	Other Additional Capital OtherAdditionalCapital	3422000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	655630000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	645743000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1057860000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	898430000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	527115000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	21044000	USD
CY2018	mtrn	Other Comprehensive Income Loss Netof Tax Reform OtherComprehensiveIncomeLossNetofTaxReform	2722000	USD
CY2018	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-41406000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	0	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8389000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5314000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3156000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	422000	USD
CY2018	mtrn	Stock Issued During Period Value Directors Deferred Compensation StockIssuedDuringPeriodValueDirectorsDeferredCompensation	179000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	586238000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	53394000	USD
CY2019	mtrn	Other Comprehensive Income Loss Netof Tax Reform OtherComprehensiveIncomeLossNetofTaxReform	9444000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-3328000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8856000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	1200000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7170000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4846000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	199000	USD
CY2019	mtrn	Stock Issued During Period Value Directors Deferred Compensation StockIssuedDuringPeriodValueDirectorsDeferredCompensation	249000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	645743000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	15462000	USD
CY2020	mtrn	Other Comprehensive Income Loss Netof Tax Reform OtherComprehensiveIncomeLossNetofTaxReform	6729000	USD
CY2020	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-94000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9257000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5619000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2221000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	6766000	USD
CY2020	mtrn	Stock Issued During Period Value Directors Deferred Compensation StockIssuedDuringPeriodValueDirectorsDeferredCompensation	227000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	655630000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	Segment
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CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	500000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	400000	USD
CY2020	mtrn	Cost Of Mine Development CostOfMineDevelopment	12900000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	300000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	700000	USD
CY2020Q4	us-gaap	Deferred Income DeferredIncome	58800000	USD
CY2020Q4	us-gaap	Percentage Of Lifo Inventory PercentageOfLIFOInventory	0.45
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	983641000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	922734000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	956454000	USD
CY2020	us-gaap	Gross Profit GrossProfit	192633000	USD
CY2019	us-gaap	Gross Profit GrossProfit	262690000	USD
CY2018	us-gaap	Gross Profit GrossProfit	251361000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	8215000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	70546000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	61752000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8275000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65536000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	16598000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7187000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12142000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4446000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	15462000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	53394000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	21044000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.62
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.04
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.75
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.59
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
CY2020	us-gaap	Net Income Loss NetIncomeLoss	15462000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	53394000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	21044000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	22285000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	66166000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	65747000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	250778000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	236253000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	20896000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	21736000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	15864000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	13104000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	631058000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	624954000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	15462000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	53394000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	21044000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9850000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3945000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1912000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1288000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-20485000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3978000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-2475000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-869000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1814000	USD
CY2020Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	233376000	USD
CY2020Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	224513000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	44570000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	46955000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-5568000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	7571000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-4870000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7163000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-992000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	8215000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	70546000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1360000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-3878000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	5803000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.19
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.19
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	241860000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	283892000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	45311000	USD
	us-gaap	Gross Profit GrossProfit	55797000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-616000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	6828000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-874000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6856000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-6345000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1210000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	5471000	USD
	us-gaap	Net Income Loss NetIncomeLoss	8066000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.27
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2019Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	231835000	USD
CY2019Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	225846000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	69606000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	71997000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	21681000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	25153000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20970000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21541000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3837000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4148000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	17133000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	17393000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	239374000	USD
CY2019Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	225679000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	66605000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	54482000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	7663000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	16049000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7100000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	15925000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2578000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1579000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	4522000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	14346000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2020Q3	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	136100000	USD
CY2020Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Long Term Debt BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt	22500000	USD
CY2020Q2	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	150000000.0	USD
CY2020	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	6500000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	8215000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	42384000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	67274000	USD
CY2020Q4	us-gaap	Assets Assets	1057860000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	70546000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	41116000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	26528000	USD
CY2019Q4	us-gaap	Assets Assets	898430000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	61752000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	35524000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	34260000	USD
CY2018Q4	us-gaap	Assets Assets	843310000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	61752000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3939000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3431000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-42683000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-3879000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1579000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2471000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8275000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65536000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	16598000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1176274000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1185424000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1207815000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	309686000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	232276000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	251018000	USD
CY2020	mtrn	Entity Wide Revenue Major Customer Threshold EntityWideRevenueMajorCustomerThreshold	0.10
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1176274000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1185424000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	10200000	USD
CY2020	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	3200000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	9100000	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	200000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	11237000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	785000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	5599000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	8587000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	9247000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	10999000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2377000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1400000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2265000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2569000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-666000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1487000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-466000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-344000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-518000	USD
CY2020	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	0	USD
CY2019	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	87000	USD
CY2018	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	416000	USD
CY2020	mtrn	Other Net OtherNet	-398000	USD
CY2019	mtrn	Other Net OtherNet	213000	USD
CY2018	mtrn	Other Net OtherNet	481000	USD
CY2020	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-8463000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-11783000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-15334000	USD
CY2020	us-gaap	Interest Costs Incurred InterestCostsIncurred	3889000	USD
CY2019	us-gaap	Interest Costs Incurred InterestCostsIncurred	1641000	USD
CY2018	us-gaap	Interest Costs Incurred InterestCostsIncurred	2870000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	10000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	62000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	399000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-3879000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1579000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2471000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8275000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65536000	USD
CY2020	us-gaap	Interest Paid InterestPaid	3442000	USD
CY2019	us-gaap	Interest Paid InterestPaid	1799000	USD
CY2018	us-gaap	Interest Paid InterestPaid	1436000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	800000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1000000.0	USD
CY2018	mtrn	Tax Cutsand Jobs Actof2017 Complete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit TaxCutsandJobsActof2017CompleteAccountingChangeinTaxRateProvisionalIncomeTaxExpenseBenefit	11100000	USD
CY2018	mtrn	Tax Cutsand Jobs Act Changein Tax Rate Deferred Tax Asset Liability Income Tax Expense Credit TaxCutsandJobsActChangeinTaxRateDeferredTaxAssetLiabilityIncomeTaxExpenseCredit	2800000	USD
CY2018	mtrn	Tax Cutsand Jobs Act Transition Tax Income Tax Expense Credit TaxCutsandJobsActTransitionTaxIncomeTaxExpenseCredit	1200000	USD
CY2018	mtrn	Tax Cutsand Jobs Act Valuation Allowance Reversal Tax Benefit TaxCutsandJobsActValuationAllowanceReversalTaxBenefit	7100000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-1153000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	60271000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	20528000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	9428000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	5265000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3930000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3945000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	16598000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	812000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6995000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-5244000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1851000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1202000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2710000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2663000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8197000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-2534000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-5641000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2687000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4677000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4209000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1258000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	2765000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9850000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1912000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7187000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12142000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4446000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.100
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.010
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.002
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0.430
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0.043
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0.175
CY2020	mtrn	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activitiesand Nol EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivitiesandNOL	0
CY2019	mtrn	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activitiesand Nol EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivitiesandNOL	0
CY2018	mtrn	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activitiesand Nol EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivitiesandNOL	-0.062
CY2020	mtrn	Foreign Derived Intangible Income Tax Deduction ForeignDerivedIntangibleIncomeTaxDeduction	0.018
CY2019	mtrn	Foreign Derived Intangible Income Tax Deduction ForeignDerivedIntangibleIncomeTaxDeduction	0.030
CY2018	mtrn	Foreign Derived Intangible Income Tax Deduction ForeignDerivedIntangibleIncomeTaxDeduction	0.028
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.071
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.011
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2020	mtrn	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act2017 Impact EffectiveIncomeTaxRateReconciliationTaxCutsandJobsAct2017Impact	0
CY2019	mtrn	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act2017 Impact EffectiveIncomeTaxRateReconciliationTaxCutsandJobsAct2017Impact	0.023
CY2018	mtrn	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act2017 Impact EffectiveIncomeTaxRateReconciliationTaxCutsandJobsAct2017Impact	-0.667
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.164
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.011
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.075
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.003
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.019
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.053
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.009
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.018
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.069
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.002
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.013
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.038
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.018
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.002
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.027
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.053
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.032
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.043
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.068
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.008
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.455
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.021
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.381
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.008
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.026
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.869
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.185
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.268
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	1564000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	1626000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	226000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	543000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	3322000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	3314000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	1301000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	1384000	USD
CY2020Q4	mtrn	Deferred Tax Assets Lease Obligations DeferredTaxAssetsLeaseObligations	10469000	USD
CY2019Q4	mtrn	Deferred Tax Assets Lease Obligations DeferredTaxAssetsLeaseObligations	4614000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	7456000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	5149000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	2683000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	5364000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12685000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	13513000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	26000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	25000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	39732000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	35532000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14134000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	17676000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	25598000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	17856000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12112000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10780000	USD
CY2020Q4	mtrn	Deferred Tax Liabilities Lease Obligations DeferredTaxLiabilitiesLeaseObligations	10261000	USD
CY2019Q4	mtrn	Deferred Tax Liabilities Lease Obligations DeferredTaxLiabilitiesLeaseObligations	4428000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	3532000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	7954000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	10754000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	2426000	USD
CY2020Q4	mtrn	Deferred Tax Liabilities Deferred Expense Mine Development DeferredTaxLiabilitiesDeferredExpenseMineDevelopment	1669000	USD
CY2019Q4	mtrn	Deferred Tax Liabilities Deferred Expense Mine Development DeferredTaxLiabilitiesDeferredExpenseMineDevelopment	3706000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	38328000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	29294000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	12730000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	11438000	USD
CY2020Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	9500000	USD
CY2020	us-gaap	Income Tax Holiday Aggregate Dollar Amount IncomeTaxHolidayAggregateDollarAmount	500000	USD
CY2020	us-gaap	Income Tax Holiday Income Tax Benefits Per Share IncomeTaxHolidayIncomeTaxBenefitsPerShare	0.03
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3221000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2883000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	191000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	399000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	349000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	703000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	61000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2360000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3221000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2700000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2400000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	3900000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	9300000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	2600000	USD
CY2020Q4	mtrn	Unrepatriated Earnings UnrepatriatedEarnings	98400000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	15462000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	53394000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	21044000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20338000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20365000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20212000	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	265000	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	290000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	401000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20603000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20655000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20613000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.62
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.04
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.75
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.59
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
CY2020Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	42905000	USD
CY2019Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	35612000	USD
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	200741000	USD
CY2019Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	175135000	USD
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	7132000	USD
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	25506000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	250778000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	236253000	USD
CY2020	us-gaap	Notional Amount Of Nonderivative Instruments NotionalAmountOfNonderivativeInstruments	400000000.0	USD
CY2019	us-gaap	Notional Amount Of Nonderivative Instruments NotionalAmountOfNonderivativeInstruments	309300000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	309686000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	232276000	USD
CY2020	us-gaap	Recovery Of Direct Costs RecoveryOfDirectCosts	63500000	USD
CY2020	mtrn	Unearned Income UnearnedIncome	-4300000	USD
CY2019	mtrn	Unearned Income UnearnedIncome	-4400000	USD
CY2020	us-gaap	Depreciation Depreciation	30900000	USD
CY2019	us-gaap	Depreciation Depreciation	30300000	USD
CY2018	us-gaap	Depreciation Depreciation	33300000	USD
CY2020Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	5000000.0	USD
CY2019Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	7900000	USD
CY2020	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1800000	USD
CY2019	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	2400000	USD
CY2018	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	2600000	USD
CY2020Q4	mtrn	Future Customer Prepayments FutureCustomerPrepayments	70000000	USD
CY2020Q4	us-gaap	Deferred Income DeferredIncome	58800000	USD
CY2020	mtrn	Operating Lease Term Maximum OperatingLeaseTermMaximum	P25Y
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	10602000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	9835000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1324000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1414000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1021000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1028000	USD
CY2020	us-gaap	Lease Cost LeaseCost	12947000	USD
CY2019	us-gaap	Lease Cost LeaseCost	12277000	USD
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	11600000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	62089000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	23413000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	56761000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	18091000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	20539000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	17424000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	23464000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	18689000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y8M19D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y8M8D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P16Y7M2D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P19Y5M19D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0646
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0591
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0488
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0531
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	3877000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	10707000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	3827000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	9415000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4563000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	4084000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	2536000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	8750000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	1595000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	6608000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	1432000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6278000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	21906000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	53041000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	35173000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	94799000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	11709000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	31130000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	23464000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	63669000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	16216000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	15841000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1021000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1028000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2213000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1200000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	43037000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	32534000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	6736000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	3919000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	109603000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	56903000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	57235000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	53554000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2400000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1400000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2300000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	4596000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	4585000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	4565000	USD
CY2020Q3	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	136100000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	144900000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	79000000.0	USD
CY2018Q4	us-gaap	Goodwill Goodwill	90657000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	11560000	USD
CY2019	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	-86000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	79011000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	70577000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	9053000	USD
CY2020	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	4381000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	144916000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	9100000	USD
CY2019	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	2600000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	11600000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	34000000	USD
CY2019Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	USD
CY2020Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	3157000	USD
CY2019Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	0	USD
CY2020Q4	us-gaap	Longterm Debt Percentage Bearing Fixed Interest Amount LongtermDebtPercentageBearingFixedInterestAmount	1322000	USD
CY2019Q4	us-gaap	Longterm Debt Percentage Bearing Fixed Interest Amount LongtermDebtPercentageBearingFixedInterestAmount	2218000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	38479000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	2218000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1937000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	868000	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	36542000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1350000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-9812000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	0	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	90000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	36542000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1260000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1937000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	500000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	387000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	34387000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	387000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	881000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	38479000	USD
CY2020Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	375000000.0	USD
CY2020Q2	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	150000000.0	USD
CY2020Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	34000000.0	USD
CY2019Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	USD
CY2020Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	8000000.0	USD
CY2020Q4	us-gaap	Long Term Debt Percentage Bearing Fixed Interest Rate LongTermDebtPercentageBearingFixedInterestRate	0.0490
CY2020Q4	us-gaap	Longterm Debt Percentage Bearing Fixed Interest Amount LongtermDebtPercentageBearingFixedInterestAmount	1300000	USD
CY2019Q4	us-gaap	Longterm Debt Percentage Bearing Fixed Interest Amount LongtermDebtPercentageBearingFixedInterestAmount	2200000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-3300000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-3300000	USD
CY2018	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-41400000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.030
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.040
CY2020Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.0600
CY2019Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.0625
CY2020Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.0500
CY2019Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.0500
CY2020	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2025
CY2019	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2025
CY2020Q4	mtrn	Defined Benefit Plan Fair Valueof Plan Assets Excluding Net Asset Value Investments DefinedBenefitPlanFairValueofPlanAssetsExcludingNetAssetValueInvestments	77977000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	226176000	USD
CY2019Q4	mtrn	Defined Benefit Plan Fair Valueof Plan Assets Excluding Net Asset Value Investments DefinedBenefitPlanFairValueofPlanAssetsExcludingNetAssetValueInvestments	56484000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	174046000	USD
CY2020	mtrn	Investments In Real Estate Minimum Percentage InvestmentsInRealEstateMinimumPercentage	0.80
CY2020	mtrn	Target Funded Status Percentage TargetFundedStatusPercentage	1
CY2020	mtrn	Current Asset Allocation To Invest In Alternative Securities Maximum CurrentAssetAllocationToInvestInAlternativeSecuritiesMaximum	0.20
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	9800000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7000000.0	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5200000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-102937000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	10477000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-46854000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	57331000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	12628000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	44703000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-58234000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-58234000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	7696000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	17508000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	4736000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	12772000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-45462000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-45462000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	3584000	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-2560000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	6144000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-679000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6823000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-38639000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5700000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11100000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11400000	USD
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Shares Issued DeferredCompensationArrangementWithIndividualSharesIssued	100000	shares
CY2020	us-gaap	Gain Loss On Foreign Currency Derivatives Recorded In Earnings Net GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet	2700000	USD
CY2019	us-gaap	Gain Loss On Foreign Currency Derivatives Recorded In Earnings Net GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet	-100000	USD
CY2020	us-gaap	Gain Loss On Fair Value Hedge Ineffectiveness Net GainLossOnFairValueHedgeIneffectivenessNet	0	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-800000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-700000	USD
CY2020	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-800000	USD
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	2617000	USD
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	959000	USD
CY2020Q4	us-gaap	Loss Contingency Pending Claims Number LossContingencyPendingClaimsNumber	2	claim
CY2019Q4	us-gaap	Loss Contingency Pending Claims Number LossContingencyPendingClaimsNumber	1	claim
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	5937000	USD
CY2018Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	6521000	USD
CY2020	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	288000	USD
CY2019	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	482000	USD
CY2020	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	749000	USD
CY2019	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	1066000	USD
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	5476000	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	5937000	USD
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	845000	USD
CY2019Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	982000	USD
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	4631000	USD
CY2019Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	4955000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1421000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1257000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	137000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	164000	USD
CY2020	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	207000	USD
CY2019	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	0	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1765000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1421000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	277946000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	271468000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	287171000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	339689000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1176274000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	44570000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	46955000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	45311000	USD
	us-gaap	Gross Profit GrossProfit	55797000	USD
CY2020	us-gaap	Gross Profit GrossProfit	192633000	USD
CY2020Q1	mtrn	Gross Profit Percentage GrossProfitPercentage	0.160
CY2020Q2	mtrn	Gross Profit Percentage GrossProfitPercentage	0.173
CY2020Q3	mtrn	Gross Profit Percentage GrossProfitPercentage	0.158
	mtrn	Gross Profit Percentage GrossProfitPercentage	0.164
CY2020	mtrn	Gross Profit Percentage GrossProfitPercentage	0.164
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-3878000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	5803000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	5471000	USD
	us-gaap	Net Income Loss NetIncomeLoss	8066000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	15462000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.19
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.19
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.27
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.75
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	301441000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	297843000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	305979000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	280161000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1185424000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	69606000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	71997000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	66605000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	54482000	USD
CY2019	us-gaap	Gross Profit GrossProfit	262690000	USD
CY2019Q1	mtrn	Gross Profit Percentage GrossProfitPercentage	0.231
CY2019Q2	mtrn	Gross Profit Percentage GrossProfitPercentage	0.242
CY2019Q3	mtrn	Gross Profit Percentage GrossProfitPercentage	0.218
CY2019Q4	mtrn	Gross Profit Percentage GrossProfitPercentage	0.194
CY2019	mtrn	Gross Profit Percentage GrossProfitPercentage	0.222
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	17133000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	17393000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	4522000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	14346000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	53394000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.62
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.59
CY2020Q1	us-gaap	Asset Impairment Charges AssetImpairmentCharges	10800000	USD
CY2019Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	14100000	USD

Files In Submission

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$MTRN
Materion Corp Stock $mtrn

2021 Q1 Form 10-K Financial Statement

#000110465721000010 Filed on February 18, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MTRN Materion Corp Stock $mtrn

2021 Q1 Form 10-K Financial Statement

#000110465721000010 Filed on February 18, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MTRN
Materion Corp Stock $mtrn