XML 94 R52.htm IDEA: XBRL DOCUMENT
v3.23.3

Related Party Transactions, Administrative Support Agreement (Q3) (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 10 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2021 | Dec. 31, 2022
Related Party Transactions [Abstract] |  |  |  |  |  |
Administrative support fees | $ 2,485,780 | $ 306,223 | $ 4,027,550 | $ 1,063,554 | $ 431,275 | $ 1,784,832
Due to Sponsor | 210,000 |  | 210,000 |  | 0 | 120,000
Administrative Support Agreement [Member] |  |  |  |  |  |
Related Party Transactions [Abstract] |  |  |  |  |  |
Monthly related party fee |  |  |  |  |  | 10,000
Related Party [Member] | Administrative Support Agreement [Member] |  |  |  |  |  |
Related Party Transactions [Abstract] |  |  |  |  |  |
Monthly related party fee |  |  | 10,000 |  |  |
Administrative support fees | 30,000 | $ 26,146 | 90,000 | $ 78,283 | $ 0 | 120,000
Due to Sponsor | $ 210,000 |  | $ 210,000 |  |  | $ 120,000

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

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
Name: | us-gaap_OperatingExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481372/852-10-55-10 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_OtherLiabilitiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483326/850-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483326/850-10-50-3 + Details
Name: | us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=fiac_AdministrativeSupportAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |