10-K Filing

Mirion Technologies, Inc. CIK: 1809987 FY 2021

Filing Information

Form Type	10-K
Accession Number	`0001628280-22-004286`
Period End Date	20211231
Filing Date	20220228
Fiscal Year	2021
Fiscal Period	FY
XBRL Instance	mir-20211231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 123 Income Statement 110 Cash Flow Statement 252 Stockholders Equity 41 Comprehensive Income 35

Balance Sheet 123 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$101.10M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$84.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$35.80M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$101.80M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$118.40M	USD	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$600.00K	USD	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$1.10M	USD	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$800.00K	USD	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$1.40M	USD	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$800.00K	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	18.75M	shares	Point-in-time
Accounts receivable, net of allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$157.40M	USD	Point-in-time
Accounts receivable, net of allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$97.30M	USD	Point-in-time
Accounts receivable, net of allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$133.30M	USD	Point-in-time
Costs in excess of billings on uncompleted contracts	`CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsCurrent`	$56.30M	USD	Point-in-time
Costs in excess of billings on uncompleted contracts	`CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsCurrent`	$59.50M	USD	Point-in-time
Costs in excess of billings on uncompleted contracts	`CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsCurrent`	$57.20M	USD	Point-in-time
Inventories	`InventoryNet`	$123.60M	USD	Point-in-time
Inventories	`InventoryNet`	$113.20M	USD	Point-in-time
Inventories	`InventoryNet`	$90.20M	USD	Point-in-time
Deferred cost of revenue	`DeferredCostsCurrent`	$300.00K	USD	Point-in-time
Deferred cost of revenue	`DeferredCostsCurrent`	$6.50M	USD	Point-in-time
Deferred cost of revenue	`DeferredCostsCurrent`	$600.00K	USD	Point-in-time
Prepaid expenses and other currents assets	`PrepaidExpenseAndOtherAssetsCurrent`	$16.70M	USD	Point-in-time
Prepaid expenses and other currents assets	`PrepaidExpenseAndOtherAssetsCurrent`	$28.00M	USD	Point-in-time
Prepaid expenses and other currents assets	`PrepaidExpenseAndOtherAssetsCurrent`	$30.90M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$453.40M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$433.90M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$389.70M	USD	Point-in-time
Property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$88.80M	USD	Point-in-time
Property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$124.00M	USD	Point-in-time
Property, plant, and equipment, net	`PropertyPlantAndEquipmentNet`	$75.20M	USD	Point-in-time
Operating ROU assets	`OperatingLeaseRightOfUseAsset`	-	USD	Point-in-time
Operating ROU assets	`OperatingLeaseRightOfUseAsset`	-	USD	Point-in-time
Operating ROU assets	`OperatingLeaseRightOfUseAsset`	$45.70M	USD	Point-in-time
Goodwill	`Goodwill`	$1.66B	USD	Point-in-time
Goodwill	`Goodwill`	$511.60M	USD	Point-in-time
Goodwill	`Goodwill`	-	USD	Point-in-time
Goodwill	`Goodwill`	$681.50M	USD	Point-in-time
Goodwill	`Goodwill`	$522.60M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$806.90M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$248.30M	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$326.30M	USD	Point-in-time
Restricted cashnon-current	`RestrictedCashNoncurrent`	$500.00K	USD	Point-in-time
Restricted cashnon-current	`RestrictedCashNoncurrent`	$400.00K	USD	Point-in-time
Restricted cashnon-current	`RestrictedCashNoncurrent`	$500.00K	USD	Point-in-time
Restricted cashnon-current	`RestrictedCashNoncurrent`	$700.00K	USD	Point-in-time
Restricted cashnon-current	`RestrictedCashNoncurrent`	$500.00K	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$16.20M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$7.50M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$24.70M	USD	Point-in-time
Total Assets	`Assets`	$3.12B	USD	Point-in-time
Total Assets	`Assets`	$1.24B	USD	Point-in-time
Total Assets	`Assets`	$1.55B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$47.10M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$59.40M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$38.70M	USD	Point-in-time
Deferred contract revenue	`ContractWithCustomerLiabilityCurrent`	$39.60M	USD	Point-in-time
Deferred contract revenue	`ContractWithCustomerLiabilityCurrent`	$50.40M	USD	Point-in-time
Deferred contract revenue	`ContractWithCustomerLiabilityCurrent`	$73.00M	USD	Point-in-time
Notes payable to third-parties, current	`NotesPayableRelatedPartiesClassifiedCurrent`	$3.90M	USD	Point-in-time
Notes payable to third-parties, current	`NotesPayableRelatedPartiesClassifiedCurrent`	$41.10M	USD	Point-in-time
Notes payable to third-parties, current	`NotesPayableRelatedPartiesClassifiedCurrent`	$6.40M	USD	Point-in-time
Operating lease liability, current	`AccruedLiabilitiesCurrent`	$9.30M	USD	Point-in-time
Operating lease liability, current	`AccruedLiabilitiesCurrent`	-	USD	Point-in-time
Operating lease liability, current	`AccruedLiabilitiesCurrent`	-	USD	Point-in-time
Accrued expenses and other current liabilities	`AccruedLiabilitiesAndOtherLiabilities`	$75.40M	USD	Point-in-time
Accrued expenses and other current liabilities	`AccruedLiabilitiesAndOtherLiabilities`	$64.10M	USD	Point-in-time
Accrued expenses and other current liabilities	`AccruedLiabilitiesAndOtherLiabilities`	$84.30M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$183.50M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$188.20M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$221.00M	USD	Point-in-time
Notes payable to related parties, non-current	`NotesPayableRelatedPartiesNoncurrent`	$1.17B	USD	Point-in-time
Notes payable to related parties, non-current	`NotesPayableRelatedPartiesNoncurrent`	$987.10M	USD	Point-in-time
Notes payable to related parties, non-current	`NotesPayableRelatedPartiesNoncurrent`	-	USD	Point-in-time
Notes payable to third-parties, non-current	`NotesPayableThirdPartiesNoncurrent`	$806.80M	USD	Point-in-time
Notes payable to third-parties, non-current	`NotesPayableThirdPartiesNoncurrent`	$669.80M	USD	Point-in-time
Notes payable to third-parties, non-current	`NotesPayableThirdPartiesNoncurrent`	$885.70M	USD	Point-in-time
Warrant liabilities	`WarrantsAndRightsOutstanding`	$68.10M	USD	Point-in-time
Warrant liabilities	`WarrantsAndRightsOutstanding`	-	USD	Point-in-time
Warrant liabilities	`WarrantsAndRightsOutstanding`	-	USD	Point-in-time
Interest accrued on notes payable to related parties	`InterestAccruedOnNotesPayableToRelatedPartiesNoncurrent`	$56.40M	USD	Point-in-time
Interest accrued on notes payable to related parties	`InterestAccruedOnNotesPayableToRelatedPartiesNoncurrent`	-	USD	Point-in-time
Interest accrued on notes payable to related parties	`InterestAccruedOnNotesPayableToRelatedPartiesNoncurrent`	$64.80M	USD	Point-in-time
Operating lease liability, non-current	`OperatingLeaseLiabilityNoncurrent`	-	USD	Point-in-time
Operating lease liability, non-current	`OperatingLeaseLiabilityNoncurrent`	-	USD	Point-in-time
Operating lease liability, non-current	`OperatingLeaseLiabilityNoncurrent`	$40.60M	USD	Point-in-time
Deferred income taxes and other liabilities	`DeferredIncomeTaxAssetsNetAndOtherNoncurrentLiabilities`	$77.50M	USD	Point-in-time
Deferred income taxes and other liabilities	`DeferredIncomeTaxAssetsNetAndOtherNoncurrentLiabilities`	$63.50M	USD	Point-in-time
Deferred income taxes and other liabilities	`DeferredIncomeTaxAssetsNetAndOtherNoncurrentLiabilities`	$197.50M	USD	Point-in-time
Total liabilities	`Liabilities`	$1.33B	USD	Point-in-time
Total liabilities	`Liabilities`	$2.39B	USD	Point-in-time
Total liabilities	`Liabilities`	$1.96B	USD	Point-in-time
Commitments and contingencies (Note 9)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 9)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 9)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$1.85B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$9.50M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$9.50M	USD	Point-in-time
Receivable from Employees for purchase of Ordinary Shares	`ReceivableFromEmployeesForPurchaseOfCommonStock`	$-2.40M	USD	Point-in-time
Receivable from Employees for purchase of Ordinary Shares	`ReceivableFromEmployeesForPurchaseOfCommonStock`	-	USD	Point-in-time
Receivable from Employees for purchase of Ordinary Shares	`ReceivableFromEmployeesForPurchaseOfCommonStock`	$-2.70M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-131.60M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-729.70M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-888.00M	USD	Point-in-time
Accumulated other comprehensive (loss) income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$4.10M	USD	Point-in-time
Accumulated other comprehensive (loss) income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-20.70M	USD	Point-in-time
Accumulated other comprehensive (loss) income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$39.20M	USD	Point-in-time
Mirion Technologies, Inc. (Successor) and Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders equity (deficit)	`StockholdersEquity`	$1.69B	USD	Point-in-time
Mirion Technologies, Inc. (Successor) and Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders equity (deficit)	`StockholdersEquity`	$-718.70M	USD	Point-in-time
Mirion Technologies, Inc. (Successor) and Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders equity (deficit)	`StockholdersEquity`	$-841.60M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$2.10M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$2.20M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$90.80M	USD	Point-in-time
Total stockholders equity (deficit)	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-109.40M	USD	Point-in-time
Total stockholders equity (deficit)	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.78B	USD	Point-in-time
Total stockholders equity (deficit)	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-448.80M	USD	Point-in-time
Total stockholders equity (deficit)	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-587.70M	USD	Point-in-time
Total stockholders equity (deficit)	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-716.50M	USD	Point-in-time
Total stockholders equity (deficit)	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-839.50M	USD	Point-in-time
Total liabilities and stockholders equity (deficit)	`LiabilitiesAndStockholdersEquity`	$1.24B	USD	Point-in-time
Total liabilities and stockholders equity (deficit)	`LiabilitiesAndStockholdersEquity`	$1.55B	USD	Point-in-time
Total liabilities and stockholders equity (deficit)	`LiabilitiesAndStockholdersEquity`	$3.12B	USD	Point-in-time

Income Statement 110 line items

Line Item	Tag	Value	Unit	Period
Total revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$478.20M	USD	Annual
Total revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$168.00M	USD	1 Quarter
Total revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$154.10M	USD	1 Quarter
Total revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$440.10M	USD	Annual
Total revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$611.60M	USD	Annual
Total cost of revenues	`CostOfRevenue`	$281.20M	USD	Annual
Total cost of revenues	`CostOfRevenue`	$97.70M	USD	1 Quarter
Total cost of revenues	`CostOfRevenue`	$251.90M	USD	Annual
Total cost of revenues	`CostOfRevenue`	$359.80M	USD	Annual
Total cost of revenues	`CostOfRevenue`	$100.20M	USD	1 Quarter
Gross profit	`GrossProfit`	$251.80M	USD	Annual
Gross profit	`GrossProfit`	$188.20M	USD	Annual
Gross profit	`GrossProfit`	$197.00M	USD	Annual
Gross profit	`GrossProfit`	$70.30M	USD	1 Quarter
Gross profit	`GrossProfit`	$53.90M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$101.60M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$145.40M	USD	Annual
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$211.20M	USD	Annual
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$70.10M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$158.10M	USD	Annual
Research and development	`ResearchAndDevelopmentExpense`	$15.90M	USD	Annual
Research and development	`ResearchAndDevelopmentExpense`	$29.40M	USD	Annual
Research and development	`ResearchAndDevelopmentExpense`	$10.30M	USD	1 Quarter
Research and development	`ResearchAndDevelopmentExpense`	$6.70M	USD	1 Quarter
Research and development	`ResearchAndDevelopmentExpense`	$14.00M	USD	Annual
Total operating expenses	`OperatingExpenses`	$174.00M	USD	Annual
Total operating expenses	`OperatingExpenses`	$76.80M	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$159.40M	USD	Annual
Total operating expenses	`OperatingExpenses`	$240.60M	USD	Annual
Total operating expenses	`OperatingExpenses`	$111.90M	USD	1 Quarter
(Loss) income from operations	`OperatingIncomeLoss`	$11.20M	USD	Annual
(Loss) income from operations	`OperatingIncomeLoss`	$-22.90M	USD	1 Quarter
(Loss) income from operations	`OperatingIncomeLoss`	$-41.60M	USD	1 Quarter
(Loss) income from operations	`OperatingIncomeLoss`	$23.00M	USD	Annual
(Loss) income from operations	`OperatingIncomeLoss`	$28.80M	USD	Annual
Third party interest expense	`ThirdPartyInterestExpense`	$47.70M	USD	Annual
Third party interest expense	`ThirdPartyInterestExpense`	$12.50M	USD	1 Quarter
Third party interest expense	`ThirdPartyInterestExpense`	$41.50M	USD	Annual
Third party interest expense	`ThirdPartyInterestExpense`	$6.20M	USD	1 Quarter
Third party interest expense	`ThirdPartyInterestExpense`	$41.00M	USD	Annual
Related party interest expense	`InterestExpenseRelatedParty`	-	USD	1 Quarter
Related party interest expense	`InterestExpenseRelatedParty`	$122.20M	USD	Annual
Related party interest expense	`InterestExpenseRelatedParty`	$95.80M	USD	Annual
Related party interest expense	`InterestExpenseRelatedParty`	$40.30M	USD	1 Quarter
Related party interest expense	`InterestExpenseRelatedParty`	$107.70M	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-15.90M	USD	1 Quarter
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-12.80M	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Foreign currency loss (gain), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$3.20M	USD	Annual
Foreign currency loss (gain), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$600.00K	USD	Annual
Foreign currency loss (gain), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-13.40M	USD	Annual
Foreign currency loss (gain), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$600.00K	USD	1 Quarter
Foreign currency loss (gain), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.60M	USD	1 Quarter
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	Annual
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	Annual
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	$-1.20M	USD	1 Quarter
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	Annual
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	1 Quarter
Other expense (income), net	`OtherNonoperatingIncomeExpense`	$-1.90M	USD	Annual
Other expense (income), net	`OtherNonoperatingIncomeExpense`	$1.10M	USD	Annual
Other expense (income), net	`OtherNonoperatingIncomeExpense`	$-300.00K	USD	1 Quarter
Other expense (income), net	`OtherNonoperatingIncomeExpense`	$1.00M	USD	Annual
Other expense (income), net	`OtherNonoperatingIncomeExpense`	$-1.60M	USD	1 Quarter
Loss before benefit from income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-111.30M	USD	1 Quarter
Loss before benefit from income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-29.80M	USD	1 Quarter
Loss before benefit from income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-124.60M	USD	Annual
Loss before benefit from income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-164.30M	USD	Annual
Loss before benefit from income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-126.20M	USD	Annual
Benefit from income taxes	`IncomeTaxExpenseBenefit`	$-4.20M	USD	Annual
Benefit from income taxes	`IncomeTaxExpenseBenefit`	$-6.80M	USD	1 Quarter
Benefit from income taxes	`IncomeTaxExpenseBenefit`	$-5.90M	USD	Annual
Benefit from income taxes	`IncomeTaxExpenseBenefit`	$-5.50M	USD	Annual
Benefit from income taxes	`IncomeTaxExpenseBenefit`	$-5.60M	USD	1 Quarter
Net loss	`ProfitLoss`	$-122.00M	USD	Annual
Net loss	`ProfitLoss`	$-105.70M	USD	1 Quarter
Net loss	`ProfitLoss`	$-119.10M	USD	Annual
Net loss	`ProfitLoss`	$-23.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-158.40M	USD	Annual
Loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-100.00K	USD	Annual
Loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-800.00K	USD	1 Quarter
Net loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`NetIncomeLoss`	$-105.70M	USD	1 Quarter
Net loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`NetIncomeLoss`	$-119.10M	USD	Annual
Net loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`NetIncomeLoss`	$-22.20M	USD	1 Quarter
Net loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`NetIncomeLoss`	$-158.30M	USD	Annual
Net loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`NetIncomeLoss`	$-122.00M	USD	Annual
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders basic (in dollars per share)	`EarningsPerShareBasic`	$-0.12	USD	1 Quarter
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders basic (in dollars per share)	`EarningsPerShareBasic`	$-19.36	USD	Annual
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders basic (in dollars per share)	`EarningsPerShareBasic`	$-18.45	USD	Annual
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders basic (in dollars per share)	`EarningsPerShareBasic`	$-24.18	USD	Annual
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders basic (in dollars per share)	`EarningsPerShareBasic`	$-15.81	USD	1 Quarter
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$-0.12	USD	1 Quarter
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$-24.18	USD	Annual
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$-19.36	USD	Annual
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$-18.45	USD	Annual
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$-15.81	USD	1 Quarter
Weighted average common shares outstanding basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	6.45M	shares	Annual
Weighted average common shares outstanding basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	6.68M	shares	1 Quarter
Weighted average common shares outstanding basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	6.55M	shares	Annual
Weighted average common shares outstanding basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	6.30M	shares	Annual
Weighted average common shares outstanding basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	180.77M	shares	1 Quarter
Weighted average common shares outstanding diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	6.68M	shares	1 Quarter
Weighted average common shares outstanding diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	6.55M	shares	Annual
Weighted average common shares outstanding diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	6.45M	shares	Annual
Weighted average common shares outstanding diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	180.77M	shares	1 Quarter
Weighted average common shares outstanding diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	6.30M	shares	Annual

Cash Flow Statement 252 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-122.00M	USD	Annual
Net loss	`ProfitLoss`	$-105.70M	USD	1 Quarter
Net loss	`ProfitLoss`	$-119.10M	USD	Annual
Net loss	`ProfitLoss`	$-23.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-158.40M	USD	Annual
Accrual of in-kind interest on notes payable to related parties	`PaidInKindInterest`	$121.20M	USD	Annual
Accrual of in-kind interest on notes payable to related parties	`PaidInKindInterest`	$95.60M	USD	Annual
Accrual of in-kind interest on notes payable to related parties	`PaidInKindInterest`	$107.70M	USD	Annual
Accrual of in-kind interest on notes payable to related parties	`PaidInKindInterest`	-	USD	1 Quarter
Accrual of in-kind interest on notes payable to related parties	`PaidInKindInterest`	$40.20M	USD	1 Quarter
Depreciation and amortization expense	`DepreciationAndAmortization`	$68.40M	USD	Annual
Depreciation and amortization expense	`DepreciationAndAmortization`	$69.50M	USD	Annual
Depreciation and amortization expense	`DepreciationAndAmortization`	$37.30M	USD	1 Quarter
Depreciation and amortization expense	`DepreciationAndAmortization`	$83.60M	USD	Annual
Depreciation and amortization expense	`DepreciationAndAmortization`	$25.90M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$5.30M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$9.30M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$100.00K	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	-	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$200.00K	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-15.90M	USD	1 Quarter
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-12.80M	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Amortization of debt issuance costs	`AmortizationOfFinancingCosts`	$3.20M	USD	Annual
Amortization of debt issuance costs	`AmortizationOfFinancingCosts`	$700.00K	USD	1 Quarter
Amortization of debt issuance costs	`AmortizationOfFinancingCosts`	$2.60M	USD	Annual
Amortization of debt issuance costs	`AmortizationOfFinancingCosts`	$1.10M	USD	1 Quarter
Amortization of debt issuance costs	`AmortizationOfFinancingCosts`	$3.60M	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$600.00K	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$500.00K	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$300.00K	USD	1 Quarter
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$2.10M	USD	Annual
Provision for doubtful accounts	`ProvisionForDoubtfulAccounts`	$-800.00K	USD	1 Quarter
Inventory obsolescence write down	`InventoryWriteDown`	$700.00K	USD	Annual
Inventory obsolescence write down	`InventoryWriteDown`	$300.00K	USD	1 Quarter
Inventory obsolescence write down	`InventoryWriteDown`	-	USD	Annual
Inventory obsolescence write down	`InventoryWriteDown`	-	USD	1 Quarter
Inventory obsolescence write down	`InventoryWriteDown`	$1.90M	USD	Annual
Change in deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$-15.50M	USD	Annual
Change in deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$-16.60M	USD	Annual
Change in deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$-16.10M	USD	Annual
Change in deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$-8.40M	USD	1 Quarter
Change in deferred income taxes	`DeferredIncomeTaxesAndTaxCredits`	$-11.20M	USD	1 Quarter
Loss (gain) on disposal of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$-800.00K	USD	1 Quarter
Loss (gain) on disposal of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$-1.60M	USD	1 Quarter
Loss (gain) on disposal of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$-1.20M	USD	Annual
Loss (gain) on disposal of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$100.00K	USD	Annual
Loss (gain) on disposal of property, plant and equipment	`GainLossOnSaleOfPropertyPlantEquipment`	$-400.00K	USD	Annual
Loss (gain) on foreign currency transactions	`ForeignCurrencyTransactionGainLossUnrealized`	$-13.40M	USD	Annual
Loss (gain) on foreign currency transactions	`ForeignCurrencyTransactionGainLossUnrealized`	$-1.60M	USD	1 Quarter
Loss (gain) on foreign currency transactions	`ForeignCurrencyTransactionGainLossUnrealized`	$-2.70M	USD	Annual
Loss (gain) on foreign currency transactions	`ForeignCurrencyTransactionGainLossUnrealized`	$1.70M	USD	Annual
Loss (gain) on foreign currency transactions	`ForeignCurrencyTransactionGainLossUnrealized`	$600.00K	USD	1 Quarter
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	Annual
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	Annual
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	$-1.20M	USD	1 Quarter
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	Annual
Change in fair values of warrant liabilities	`FairValueAdjustmentOfWarrants`	-	USD	1 Quarter
Amortization of deferred revenue step-down	`AmortizationOfDeferredRevenueStepDown`	$200.00K	USD	Annual
Amortization of deferred revenue step-down	`AmortizationOfDeferredRevenueStepDown`	$2.30M	USD	1 Quarter
Amortization of deferred revenue step-down	`AmortizationOfDeferredRevenueStepDown`	$8.00M	USD	Annual
Amortization of deferred revenue step-down	`AmortizationOfDeferredRevenueStepDown`	-	USD	Annual
Amortization of deferred revenue step-down	`AmortizationOfDeferredRevenueStepDown`	$4.50M	USD	1 Quarter
Amortization of inventory step-up	`AmortizationOfInventoryStepUp`	-	USD	1 Quarter
Amortization of inventory step-up	`AmortizationOfInventoryStepUp`	$1.60M	USD	Annual
Amortization of inventory step-up	`AmortizationOfInventoryStepUp`	$100.00K	USD	Annual
Amortization of inventory step-up	`AmortizationOfInventoryStepUp`	$15.80M	USD	1 Quarter
Amortization of inventory step-up	`AmortizationOfInventoryStepUp`	$5.20M	USD	Annual
Other	`OtherNoncashIncomeExpense`	-	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$900.00K	USD	Annual
Other	`OtherNoncashIncomeExpense`	$100.00K	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$100.00K	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-1.40M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-10.60M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-18.20M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$4.20M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$42.50M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-3.80M	USD	Annual
Costs in excess of billings on uncompleted contracts	`IncreaseDecreaseCostsInExcessOfBillingsOnUncompletedContracts`	$5.70M	USD	1 Quarter
Costs in excess of billings on uncompleted contracts	`IncreaseDecreaseCostsInExcessOfBillingsOnUncompletedContracts`	$2.90M	USD	Annual
Costs in excess of billings on uncompleted contracts	`IncreaseDecreaseCostsInExcessOfBillingsOnUncompletedContracts`	$3.80M	USD	Annual
Costs in excess of billings on uncompleted contracts	`IncreaseDecreaseCostsInExcessOfBillingsOnUncompletedContracts`	$-6.30M	USD	1 Quarter
Costs in excess of billings on uncompleted contracts	`IncreaseDecreaseCostsInExcessOfBillingsOnUncompletedContracts`	$8.10M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$10.20M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$7.90M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$4.20M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-5.10M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$-2.70M	USD	Annual
Deferred cost of revenue	`IncreaseDecreaseInDeferredCostsCurrent`	$300.00K	USD	1 Quarter
Deferred cost of revenue	`IncreaseDecreaseInDeferredCostsCurrent`	$200.00K	USD	Annual
Deferred cost of revenue	`IncreaseDecreaseInDeferredCostsCurrent`	$3.50M	USD	Annual
Deferred cost of revenue	`IncreaseDecreaseInDeferredCostsCurrent`	$-6.60M	USD	Annual
Deferred cost of revenue	`IncreaseDecreaseInDeferredCostsCurrent`	$400.00K	USD	1 Quarter
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-1.40M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-2.60M	USD	1 Quarter
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$2.50M	USD	1 Quarter
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$10.10M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$1.60M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-2.70M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$2.60M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-2.50M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$19.20M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-8.90M	USD	1 Quarter
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilitiesCurrent`	$400.00K	USD	1 Quarter
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilitiesCurrent`	$-2.20M	USD	Annual
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilitiesCurrent`	$7.30M	USD	Annual
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilitiesCurrent`	$-8.40M	USD	1 Quarter
Accrued expenses and other current liabilities	`IncreaseDecreaseInAccruedLiabilitiesAndOtherLiabilitiesCurrent`	$-13.10M	USD	Annual
Deferred contract revenue	`IncreaseDecreaseInDeferredRevenue`	$-1.90M	USD	Annual
Deferred contract revenue	`IncreaseDecreaseInDeferredRevenue`	$-8.40M	USD	Annual
Deferred contract revenue	`IncreaseDecreaseInDeferredRevenue`	$10.60M	USD	1 Quarter
Deferred contract revenue	`IncreaseDecreaseInDeferredRevenue`	$-2.80M	USD	Annual
Deferred contract revenue	`IncreaseDecreaseInDeferredRevenue`	$4.50M	USD	1 Quarter
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$2.20M	USD	1 Quarter
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-200.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-500.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-500.00K	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$6.10M	USD	1 Quarter
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$6.70M	USD	1 Quarter
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-5.30M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-8.50M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$2.60M	USD	1 Quarter
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$7.50M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$53.60M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$39.50M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$13.10M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$14.70M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-12.20M	USD	1 Quarter
Acquisition of Mirion Topco, net of cash and cash equivalents acquired	`PaymentsToAcquireAcquisitionCompanyNetOfCashAcquired`	-	USD	Annual
Acquisition of Mirion Topco, net of cash and cash equivalents acquired	`PaymentsToAcquireAcquisitionCompanyNetOfCashAcquired`	$2.12B	USD	1 Quarter
Acquisition of Mirion Topco, net of cash and cash equivalents acquired	`PaymentsToAcquireAcquisitionCompanyNetOfCashAcquired`	-	USD	Annual
Acquisition of Mirion Topco, net of cash and cash equivalents acquired	`PaymentsToAcquireAcquisitionCompanyNetOfCashAcquired`	-	USD	Annual
Acquisition of Mirion Topco, net of cash and cash equivalents acquired	`PaymentsToAcquireAcquisitionCompanyNetOfCashAcquired`	-	USD	1 Quarter
Acquisitions of businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$9.10M	USD	Annual
Acquisitions of businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$900.00K	USD	1 Quarter
Acquisitions of businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$58.60M	USD	1 Quarter
Acquisitions of businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$55.70M	USD	Annual
Acquisitions of businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$290.10M	USD	Annual
Purchases of property, plant, and equipment and badges	`PaymentsToAcquirePropertyPlantAndEquipment`	$11.60M	USD	1 Quarter
Purchases of property, plant, and equipment and badges	`PaymentsToAcquirePropertyPlantAndEquipment`	$16.50M	USD	Annual
Purchases of property, plant, and equipment and badges	`PaymentsToAcquirePropertyPlantAndEquipment`	$19.90M	USD	Annual
Purchases of property, plant, and equipment and badges	`PaymentsToAcquirePropertyPlantAndEquipment`	$23.20M	USD	Annual
Purchases of property, plant, and equipment and badges	`PaymentsToAcquirePropertyPlantAndEquipment`	$6.00M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-12.50M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.19B	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-313.30M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-25.60M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-75.60M	USD	Annual
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	1 Quarter
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	$900.00M	USD	1 Quarter
Common stock issuance costs	`PaymentsOfStockIssuanceCosts`	-	USD	Annual
Common stock issuance costs	`PaymentsOfStockIssuanceCosts`	-	USD	Annual
Common stock issuance costs	`PaymentsOfStockIssuanceCosts`	-	USD	1 Quarter
Common stock issuance costs	`PaymentsOfStockIssuanceCosts`	$13.30M	USD	1 Quarter
Common stock issuance costs	`PaymentsOfStockIssuanceCosts`	-	USD	Annual
Transaction fees reimbursed by Sellers	`TransactionFeesReimbursedBySellers`	$-18.70M	USD	1 Quarter
Transaction fees reimbursed by Sellers	`TransactionFeesReimbursedBySellers`	-	USD	Annual
Transaction fees reimbursed by Sellers	`TransactionFeesReimbursedBySellers`	-	USD	1 Quarter
Transaction fees reimbursed by Sellers	`TransactionFeesReimbursedBySellers`	-	USD	Annual
Transaction fees reimbursed by Sellers	`TransactionFeesReimbursedBySellers`	-	USD	Annual
Payment of deferred underwriting costs	`PaymentOfDeferredUnderwritingCosts`	-	USD	1 Quarter
Payment of deferred underwriting costs	`PaymentOfDeferredUnderwritingCosts`	$26.30M	USD	1 Quarter
Payment of deferred underwriting costs	`PaymentOfDeferredUnderwritingCosts`	-	USD	Annual
Payment of deferred underwriting costs	`PaymentOfDeferredUnderwritingCosts`	-	USD	Annual
Payment of deferred underwriting costs	`PaymentOfDeferredUnderwritingCosts`	-	USD	Annual
SPAC share redemption	`ReverseRecapitalizationShareRedemption`	-	USD	Annual
SPAC share redemption	`ReverseRecapitalizationShareRedemption`	$146.30M	USD	Point-in-time
SPAC share redemption	`ReverseRecapitalizationShareRedemption`	-	USD	1 Quarter
SPAC share redemption	`ReverseRecapitalizationShareRedemption`	-	USD	Annual
SPAC share redemption	`ReverseRecapitalizationShareRedemption`	-	USD	Annual
Borrowings from notes payable to third-parties, net of discount and issuance costs	`ProceedsFromNotesPayable`	$596.80M	USD	Annual
Borrowings from notes payable to third-parties, net of discount and issuance costs	`ProceedsFromNotesPayable`	$98.80M	USD	Annual
Borrowings from notes payable to third-parties, net of discount and issuance costs	`ProceedsFromNotesPayable`	$218.80M	USD	Annual
Borrowings from notes payable to third-parties, net of discount and issuance costs	`ProceedsFromNotesPayable`	$807.30M	USD	1 Quarter
Borrowings from notes payable to third-parties, net of discount and issuance costs	`ProceedsFromNotesPayable`	$1.90M	USD	1 Quarter
Principal repayments	`RepaymentsOfNotesPayable`	$1.70M	USD	1 Quarter
Principal repayments	`RepaymentsOfNotesPayable`	$560.20M	USD	Annual
Principal repayments	`RepaymentsOfNotesPayable`	$14.80M	USD	Annual
Principal repayments	`RepaymentsOfNotesPayable`	$2.40M	USD	1 Quarter
Principal repayments	`RepaymentsOfNotesPayable`	$13.40M	USD	Annual
Deferred finance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	1 Quarter
Deferred finance costs	`PaymentsOfDebtIssuanceCosts`	$8.10M	USD	Annual
Deferred finance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Deferred finance costs	`PaymentsOfDebtIssuanceCosts`	$900.00K	USD	1 Quarter
Deferred finance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Borrowings from notes payable related parties	`ProceedsFromRelatedPartyDebt`	$70.00M	USD	Annual
Borrowings from notes payable related parties	`ProceedsFromRelatedPartyDebt`	-	USD	Annual
Borrowings from notes payable related parties	`ProceedsFromRelatedPartyDebt`	-	USD	1 Quarter
Borrowings from notes payable related parties	`ProceedsFromRelatedPartyDebt`	-	USD	1 Quarter
Borrowings from notes payable related parties	`ProceedsFromRelatedPartyDebt`	-	USD	Annual
Borrowing on revolving term loan	`ProceedsFromLongTermLinesOfCredit`	-	USD	Annual
Borrowing on revolving term loan	`ProceedsFromLongTermLinesOfCredit`	$80.00M	USD	Annual
Borrowing on revolving term loan	`ProceedsFromLongTermLinesOfCredit`	-	USD	1 Quarter
Borrowing on revolving term loan	`ProceedsFromLongTermLinesOfCredit`	-	USD	1 Quarter
Borrowing on revolving term loan	`ProceedsFromLongTermLinesOfCredit`	-	USD	Annual
Payment on revolving term loan	`RepaymentsOfLongTermLinesOfCredit`	$35.00M	USD	Annual
Payment on revolving term loan	`RepaymentsOfLongTermLinesOfCredit`	$45.00M	USD	Annual
Payment on revolving term loan	`RepaymentsOfLongTermLinesOfCredit`	$13.00M	USD	Annual
Payment on revolving term loan	`RepaymentsOfLongTermLinesOfCredit`	-	USD	1 Quarter
Payment on revolving term loan	`RepaymentsOfLongTermLinesOfCredit`	-	USD	1 Quarter
Payment of contingent considerations	`PaymentForContingentConsiderationLiabilityFinancingActivities`	-	USD	1 Quarter
Payment of contingent considerations	`PaymentForContingentConsiderationLiabilityFinancingActivities`	-	USD	Annual
Payment of contingent considerations	`PaymentForContingentConsiderationLiabilityFinancingActivities`	-	USD	Annual
Payment of contingent considerations	`PaymentForContingentConsiderationLiabilityFinancingActivities`	$2.00M	USD	Annual
Payment of contingent considerations	`PaymentForContingentConsiderationLiabilityFinancingActivities`	-	USD	1 Quarter
Contribution from noncontrolling interests	`ProceedsFromMinorityShareholders`	-	USD	Annual
Contribution from noncontrolling interests	`ProceedsFromMinorityShareholders`	-	USD	Annual
Contribution from noncontrolling interests	`ProceedsFromMinorityShareholders`	-	USD	1 Quarter
Contribution from noncontrolling interests	`ProceedsFromMinorityShareholders`	-	USD	1 Quarter
Contribution from noncontrolling interests	`ProceedsFromMinorityShareholders`	$100.00K	USD	Annual
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$100.00K	USD	Annual
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	-	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	-	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$400.00K	USD	Annual
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	-	USD	Annual
Other financing	`ProceedsFromPaymentsForOtherFinancingActivities`	$1.50M	USD	1 Quarter
Other financing	`ProceedsFromPaymentsForOtherFinancingActivities`	$200.00K	USD	1 Quarter
Other financing	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Other financing	`ProceedsFromPaymentsForOtherFinancingActivities`	$900.00K	USD	Annual
Other financing	`ProceedsFromPaymentsForOtherFinancingActivities`	$-500.00K	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.54B	USD	1 Quarter
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$15.00M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$239.00M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.00M	USD	1 Quarter
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$118.90M	USD	Annual
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-1.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-400.00K	USD	Annual
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.10M	USD	Annual
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-2.40M	USD	Annual
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-900.00K	USD	1 Quarter
Net (decrease) increase in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$700.00K	USD	1 Quarter
Net (decrease) increase in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-17.60M	USD	Annual
Net (decrease) increase in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-664.90M	USD	1 Quarter
Net (decrease) increase in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.70M	USD	Annual
Net (decrease) increase in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$82.40M	USD	Annual
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$37.60M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$35.90M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.30M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$120.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$103.10M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$102.40M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$37.60M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$35.90M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$85.30M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$120.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$103.10M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$102.40M	USD	Point-in-time

Stockholders Equity 41 line items

Line Item	Tag	Value	Unit	Period
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-109.40M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.78B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-448.80M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-587.70M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-716.50M	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-839.50M	USD	Point-in-time
Contribution from noncontrolling interests	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$100.00K	USD	Annual
Distribution to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$100.00K	USD	Annual
Distribution to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$400.00K	USD	Annual
Reclassification of temporary equity shares previously subject to redemption	`StockRedeemedOrCalledDuringPeriodValue`	$603.70M	USD	1 Quarter
Issuance of Common Shares to Mirion Sellers and recognition of noncontrolling interests in Mirion Business Combination	`StockIssuedDuringPeriodNoncontrollingInterestsValueNewIssues`	-	USD	Annual
Issuance of Common Shares to Mirion Sellers and recognition of noncontrolling interests in Mirion Business Combination	`StockIssuedDuringPeriodNoncontrollingInterestsValueNewIssues`	-	USD	Annual
Issuance of Common Shares to Mirion Sellers and recognition of noncontrolling interests in Mirion Business Combination	`StockIssuedDuringPeriodNoncontrollingInterestsValueNewIssues`	-	USD	Annual
Issuance of Common Shares to Mirion Sellers and recognition of noncontrolling interests in Mirion Business Combination	`StockIssuedDuringPeriodNoncontrollingInterestsValueNewIssues`	$420.70M	USD	1 Quarter
Issuance of Common Shares to Mirion Sellers and recognition of noncontrolling interests in Mirion Business Combination	`StockIssuedDuringPeriodNoncontrollingInterestsValueNewIssues`	-	USD	1 Quarter
Equity contribution from Mirion Sellers	`EquityContributionFromSellersAmount`	$18.70M	USD	1 Quarter
Forgiveness of working capital note from Sponsor	`RelatedPartyLoanForgivenessAmount`	$2.00M	USD	1 Quarter
Stock-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$5.30M	USD	1 Quarter
Stock-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$9.30M	USD	1 Quarter
Stock-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$100.00K	USD	Annual
Stock-based compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$200.00K	USD	Annual
Receivable from Employees	`ReceivableFromEmployeesPeriodIncreaseDecrease`	$-400.00K	USD	Annual
Receivable from Employees	`ReceivableFromEmployeesPeriodIncreaseDecrease`	$300.00K	USD	Annual
Receivable from Employees	`ReceivableFromEmployeesPeriodIncreaseDecrease`	$1.60M	USD	1 Quarter
Receivable from Employees	`ReceivableFromEmployeesPeriodIncreaseDecrease`	$-200.00K	USD	Annual
Net loss	`ProfitLoss`	$-122.00M	USD	Annual
Net loss	`ProfitLoss`	$-105.70M	USD	1 Quarter
Net loss	`ProfitLoss`	$-119.10M	USD	Annual
Net loss	`ProfitLoss`	$-23.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-158.40M	USD	Annual
Other comprehensive loss (income), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-20.70M	USD	1 Quarter
Other comprehensive loss (income), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-9.30M	USD	Annual
Other comprehensive loss (income), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-16.60M	USD	Annual
Other comprehensive loss (income), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$35.10M	USD	Annual
Other comprehensive loss (income), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-6.90M	USD	1 Quarter
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-109.40M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.78B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-448.80M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-587.70M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-716.50M	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-839.50M	USD	Point-in-time

Comprehensive Income 35 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-122.00M	USD	Annual
Net loss	`ProfitLoss`	$-105.70M	USD	1 Quarter
Net loss	`ProfitLoss`	$-119.10M	USD	Annual
Net loss	`ProfitLoss`	$-23.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-158.40M	USD	Annual
Foreign currency translation, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-9.30M	USD	Annual
Foreign currency translation, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-15.10M	USD	Annual
Foreign currency translation, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-20.50M	USD	1 Quarter
Foreign currency translation, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-7.50M	USD	1 Quarter
Foreign currency translation, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$34.20M	USD	Annual
Unrecognized actuarial (loss) gain and prior service benefit, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$1.50M	USD	Annual
Unrecognized actuarial (loss) gain and prior service benefit, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$200.00K	USD	1 Quarter
Unrecognized actuarial (loss) gain and prior service benefit, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	-	USD	Annual
Unrecognized actuarial (loss) gain and prior service benefit, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-600.00K	USD	1 Quarter
Unrecognized actuarial (loss) gain and prior service benefit, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-900.00K	USD	Annual
Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-20.70M	USD	1 Quarter
Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-9.30M	USD	Annual
Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-16.60M	USD	Annual
Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$35.10M	USD	Annual
Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-6.90M	USD	1 Quarter
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-123.30M	USD	Annual
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-128.40M	USD	Annual
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-43.70M	USD	1 Quarter
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-112.60M	USD	1 Quarter
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-138.60M	USD	Annual
Less: Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-800.00K	USD	1 Quarter
Less: Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-100.00K	USD	Annual
Less: Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	Annual
Less: Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	Annual
Less: Comprehensive loss attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Comprehensive loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`ComprehensiveIncomeNetOfTax`	$-128.40M	USD	Annual
Comprehensive loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`ComprehensiveIncomeNetOfTax`	$-138.60M	USD	Annual
Comprehensive loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`ComprehensiveIncomeNetOfTax`	$-123.20M	USD	Annual
Comprehensive loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`ComprehensiveIncomeNetOfTax`	$-42.90M	USD	1 Quarter
Comprehensive loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders	`ComprehensiveIncomeNetOfTax`	$-112.60M	USD	1 Quarter

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