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Private Placement - Additional Information (Detail) - USD ($)			3 Months Ended
	Mar. 17, 2023	Mar. 16, 2023	Mar. 31, 2024	Mar. 31, 2023
Disclosure of Private Placement [Line Items]
Proceeds from sale of Warrants			$ 0	$ 3,577,000
Sponsor [Member] | Private Placement Warrants [Member]
Disclosure of Private Placement [Line Items]
Class of warrant or right issued during the period		3,449,500
Price of warrant		$ 1
Proceeds from sale of Warrants		$ 3,449,500
Over-Allotment Option [Member] | Private Placement Warrants [Member]
Disclosure of Private Placement [Line Items]
Class of warrant or right issued during the period	127,400	127,400
Proceeds from sale of Warrants	$ 127,500

X

- Definition

Class of warrant or right issued during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	forlu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Class of warrant or right price of warrants or rights.

+ References

No definition available.

+ Details

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Namespace Prefix:	forlu_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Disclosure of private placement.

+ References

No definition available.

+ Details

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X

- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

+ Details

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- Details

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- Details

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X

- Details

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