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SCHEDULE OF RECONCILIATION OF ORDINARY SHARE SUBJECT TO POSSIBLE REDEMPTION (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Class A ordinary shares subject to possible redemption balance | $ 208,932,880 |
Class A ordinary shares subject to possible redemption balance | 83,523,112 | $ 208,932,880
Class A Ordinary Shares Subject to Redemption [Member] |  |
Class A ordinary shares subject to possible redemption balance | 208,932,880 | 202,998,782
Class A ordinary shares subject to possible redemption balance | 7,715,207 | 5,934,098
Class A ordinary shares subject to possible redemption balance | (133,124,975) |
Class A ordinary shares subject to possible redemption balance | $ 83,523,112 | $ 208,932,880

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- Definition Redemption Of Class Ordinary Shares + References No definition available. + Details
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Namespace Prefix: | IFIN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Value of accretion of temporary equity to its redemption value during the period. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_StatementClassOfStockAxis=IFIN_ClassAOrdinarySharesSubjectToRedemptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |