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

No definition available.

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Balance Type:	na
Period Type:	instant

- Definition

Amount of maximum borrowing capacity of related party promissory note.

+ References

No definition available.

+ Details

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Namespace Prefix:	fronu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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
Balance Type:	credit
Period Type:	instant

- Definition

The contractual monthly amount to be paid for support services.

+ References

No definition available.

+ Details

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Namespace Prefix:	fronu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
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-URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
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+ Details

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

- 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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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

- Details

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Balance Type:
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- Details

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- Details

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- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
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- Details

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RELATED PARTY TRANSACTIONS - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Mar. 17, 2021	Mar. 15, 2021	Jan. 20, 2021
Related Party Transaction [Line Items]
Due to related party	$ 155,161		$ 155,161		$ 95,161
Sponsor
Related Party Transaction [Line Items]
Due to related party	0		0		0
Promissory Note with Related Party
Related Party Transaction [Line Items]
Maximum borrowing capacity of related party promissory note								$ 300,000
Outstanding balance of related party note						$ 116,000	$ 116,000
Administrative Support Agreement
Related Party Transaction [Line Items]
Expenses per month			10,000
Expenses incurred and paid	30,000	$ 30,000	60,000	$ 35,000
Due to related party	155,000		155,000		$ 95,000
Related Party Loans
Related Party Transaction [Line Items]
Loan conversion agreement warrant	1,500,000		1,500,000
Related Party Loans \| Private Placement Warrants
Related Party Transaction [Line Items]
Loan conversion agreement warrant	$ 1,000,000		$ 1,000,000
Related Party Loans \| Working capital loans warrant \| Private Placement Warrants
Related Party Transaction [Line Items]
Price of warrant	$ 1.50		$ 1.50