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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions | 2 Months Ended | 10 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2021 | Nov. 08, 2021 | Dec. 31, 2022 | Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract] |  |  |  |
Purchase obligation expense | $ 7.7 | $ 36.1 | $ 43.9 | $ 31.8
Purchase agreement |  |  | 5.0 |
Purchase agreement, paid in 2022 |  |  | 2.0 |
Outstanding purchase obligation |  |  | $ 3.0 |

X
- Definition Purchase Commitment, Costs Incurred + References No definition available. + Details
Name: | prm_PurchaseCommitmentCostsIncurred
Namespace Prefix: | prm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Purchase Obligation, Outstanding + References No definition available. + Details
Name: | prm_PurchaseObligationOutstanding
Namespace Prefix: | prm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Purchase Obligation, Paid In Current Fiscal Year + References No definition available. + Details
Name: | prm_PurchaseObligationPaidInCurrentFiscalYear
Namespace Prefix: | prm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant