Amount of Additional borrowing capacity of related party promissory note.

No definition available.

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- Definition

Price per share or per unit of warrants or rights outstanding.

+ References

No definition available.

+ Details

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- Definition

Amount of maximum borrowing capacity of related party promissory note.

+ References

No definition available.

+ Details

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Namespace Prefix:	pmgmu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Working capital loans outstanding which were converted into working capital warrants.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum amount which a potential loan could have repaid through issuance of warrants.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The contractual monthly amount to be paid for support services.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Represents the amount of working capital loan.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount for notes payable (written promise to pay), due to related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 10
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-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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RELATED PARTY TRANSACTIONS - Additional Information (Details) - USD ($)				3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 08, 2021	Jan. 13, 2021	Dec. 17, 2020	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Jun. 30, 2021	Feb. 11, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Maximum borrowing capacity of related party promissory note								$ 266,964
Sponsor
Related Party Transaction [Line Items]
Promissory note - related party										$ 73,295
Promissory Note with Related Party
Related Party Transaction [Line Items]
Maximum borrowing capacity of related party promissory note			$ 75,000
Additional borrowing capacity of related party promissory note		$ 50,000
Repayment of promissory note - related party		$ 50,000
Outstanding balance of related party note				$ 0		$ 0		0
Promissory note - related party								$ 0			$ 38,588
Working Capital Loans
Related Party Transaction [Line Items]
Price of warrant				$ 1.50		$ 1.50		$ 1.50
Working capital loans				$ 0		$ 0		$ 0			$ 0
Maximum loans convertible into warrants				1,500,000		1,500,000		1,500,000
Working Capital Loans \| Warrants
Related Party Transaction [Line Items]
Loan conversion agreement warrant									66,667
Working capital loans					$ 100,000		$ 100,000		$ 100,000
Maximum loans convertible into warrants					66,667		66,667
Administrative Service Fee
Related Party Transaction [Line Items]
Outstanding balance of related party note	$ 15,000
Expenses per month	25,000							$ 10,000
Expenses incurred and paid				$ 75,000	$ 191,964	$ 225,000	$ 191,964
Administrative Service Fee \| Sponsor
Related Party Transaction [Line Items]
Expenses per month	10,000
Administrative Service Fee \| CEO and CFO
Related Party Transaction [Line Items]
Expenses per month	$ 15,000