Related Party Transactions	6 Months Ended
Jun. 30, 2025
Related Party Transactions [Abstract]
Related Party Transactions	Note 5 — Related Party Transactions Founder Shares On May 22, 2024, the Sponsor made a capital contribution of $25,000, or approximately $0.004 per Class B Ordinary Share, to cover certain of the Company’s deferred offering costs and expenses, for which the Company issued 5,750,000 Class B Ordinary Shares, to the Sponsor (the “Founder Shares”). In December 2024, the Company effected a share dividend of 0.33 shares for each Class B Ordinary Share outstanding, resulting in holder of the Founder Shares prior to the Initial Public Offering (the “Initial Shareholders”) holding an aggregate of 7,666,667 Founder Shares. The Founder Shares included an aggregate of up to 1,000,000 shares that were subject to forfeiture by the Sponsor for no consideration depending on the extent to which the Over-Allotment Option was exercised. On March 3, 2025, the Over-Allotment Option was exercised in full as part of the closing of the Initial Public Offering. As such, those 1,000,000 Founder Shares are no longer subject to forfeiture. The Initial Shareholders have agreed not to transfer, assign or sell any of their Founder Shares and any Class A Ordinary Shares issued upon conversion thereof until the earlier to occur of (i) one year after the completion of the initial Business Combination or (ii) the date on which the Company completes a liquidation, merger, share exchange or other similar transaction after the initial Business Combination that results in all of the Company’s shareholders having the right to exchange their Class A Ordinary Shares for cash, securities or other property. Any permitted transferees will be subject to the same restrictions and other agreements of the Initial Shareholders with respect to any Founder Shares (the “Lock-up”). Notwithstanding the foregoing, if (x) the closing price of the Class A Ordinary Shares equals or exceeds $12.00 per share (as adjusted for share subdivisions, share capitalizations, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the initial Business Combination or (y) the Company consummates a transaction after the initial Business Combination that results in the Company’s shareholders having the right to exchange their shares for cash, securities or other property, the Founder Shares will be released from the Lock-up. IPO Promissory Note — Related Party The Sponsor agreed to loan the Company an aggregate of up to $300,000 to be used for a portion of the expenses of the Initial Public Offering pursuant to an unsecured promissory note (the “IPO Promissory Note”). The loan was non-interest bearing, unsecured and due at the earlier of June 30, 2025, or the closing of the Initial Public Offering. On March 3, 2025, the Company repaid the total outstanding balance of the IPO Promissory Note amounting to $222,141. Borrowings under the IPO Promissory Note are no longer available. Due from Sponsor The Company paid the Sponsor an amount of $21,550 in excess of the outstanding IPO Promissory Note balance at the closing of the Initial Public Offering. Subsequently, on March 6, 2025, the Sponsor repaid the Company a total of $21,550. As of June 30, 2025 and December 31, 2024, there were no outstanding amounts due from the Sponsor. Administrative Services Agreement The Company entered into an agreement with the managing member of the Sponsor, commencing on February 27, 2025, through the earlier of the Company’s consummation of initial Business Combination and its liquidation, to pay an affiliate of the Sponsor an aggregate of $15,000 per month for office space, utilities and secretarial and administrative support services. For the three and six months ended June 30, 2025, the Company incurred $45,000 and $61,071, respectively, in fees for these services, of which such amount is included in accrued expenses in the accompanying condensed balance sheets. For the period from May 22, 2024 (inception) through June 30, 2024, no fees were incurred for these services. Working Capital Loans In order to finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor or certain of the Company’s officers and directors may, but are not obligated to, loan the Company Working Capital Loans as may be required. If the Company completes a Business Combination, the Company would repay the Working Capital Loans. In the event that a Business Combination does not close, the Company may use a portion of the working capital held outside the Trust Account to repay the Working Capital Loans, but no proceeds from the Trust Account would be used to repay the Working Capital Loans. Up to $1,500,000 of such Working Capital Loans may be convertible into units of the post-Business Combination entity at a price of $10.00 per unit at the option of the lender. The units would be identical to the Private Placement Units. As of June 30, 2025 and December 31, 2024, no such Working Capital Loans were outstanding.

Related Party Transactions

6 Months Ended

Jun. 30, 2025

Note 5 — Related Party Transactions

Founder Shares

On May 22, 2024, the Sponsor made a capital contribution of $25,000, or approximately $0.004 per Class B Ordinary Share, to cover certain of the Company’s deferred offering costs and expenses, for which the Company issued 5,750,000 Class B Ordinary Shares, to the Sponsor (the “Founder Shares”). In December 2024, the Company effected a share dividend of 0.33 shares for each Class B Ordinary Share outstanding, resulting in holder of the Founder Shares prior to the Initial Public Offering (the “Initial Shareholders”) holding an aggregate of 7,666,667 Founder Shares. The Founder Shares included an aggregate of up to 1,000,000 shares that were subject to forfeiture by the Sponsor for no consideration depending on the extent to which the Over-Allotment Option was exercised. On March 3, 2025, the Over-Allotment Option was exercised in full as part of the closing of the Initial Public Offering. As such, those 1,000,000 Founder Shares are no longer subject to forfeiture.

The Initial Shareholders have agreed not to transfer, assign or sell any of their Founder Shares and any Class A Ordinary Shares issued upon conversion thereof until the earlier to occur of (i) one year after the completion of the initial Business Combination or (ii) the date on which the Company completes a liquidation, merger, share exchange or other similar transaction after the initial Business Combination that results in all of the Company’s shareholders having the right to exchange their Class A Ordinary Shares for cash, securities or other property. Any permitted transferees will be subject to the same restrictions and other agreements of the Initial Shareholders with respect to any Founder Shares (the “Lock-up”). Notwithstanding the foregoing, if (x) the closing price of the Class A Ordinary Shares equals or exceeds $12.00 per share (as adjusted for share subdivisions, share capitalizations, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the initial Business Combination or (y) the Company consummates a transaction after the initial Business Combination that results in the Company’s shareholders having the right to exchange their shares for cash, securities or other property, the Founder Shares will be released from the Lock-up.

IPO Promissory Note — Related Party

The Sponsor agreed to loan the Company an aggregate of up to $300,000 to be used for a portion of the expenses of the Initial Public Offering pursuant to an unsecured promissory note (the “IPO Promissory Note”). The loan was non-interest bearing, unsecured and due at the earlier of June 30, 2025, or the closing of the Initial Public Offering. On March 3, 2025, the Company repaid the total outstanding balance of the IPO Promissory Note amounting to $222,141. Borrowings under the IPO Promissory Note are no longer available.

Due from Sponsor

The Company paid the Sponsor an amount of $21,550 in excess of the outstanding IPO Promissory Note balance at the closing of the Initial Public Offering. Subsequently, on March 6, 2025, the Sponsor repaid the Company a total of $21,550. As of June 30, 2025 and December 31, 2024, there were no outstanding amounts due from the Sponsor.

Administrative Services Agreement

The Company entered into an agreement with the managing member of the Sponsor, commencing on February 27, 2025, through the earlier of the Company’s consummation of initial Business Combination and its liquidation, to pay an affiliate of the Sponsor an aggregate of $15,000 per month for office space, utilities and secretarial and administrative support services. For the three and six months ended June 30, 2025, the Company incurred $45,000 and $61,071, respectively, in fees for these services, of which such amount is included in accrued expenses in the accompanying condensed balance sheets. For the period from May 22, 2024 (inception) through June 30, 2024, no fees were incurred for these services.

Working Capital Loans

In order to finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor or certain of the Company’s officers and directors may, but are not obligated to, loan the Company Working Capital Loans as may be required. If the Company completes a Business Combination, the Company would repay the Working Capital Loans. In the event that a Business Combination does not close, the Company may use a portion of the working capital held outside the Trust Account to repay the Working Capital Loans, but no proceeds from the Trust Account would be used to repay the Working Capital Loans. Up to $1,500,000 of such Working Capital Loans may be convertible into units of the post-Business Combination entity at a price of $10.00 per unit at the option of the lender. The units would be identical to the Private Placement Units. As of June 30, 2025 and December 31, 2024, no such Working Capital Loans were outstanding.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/1943274/2147480990/946-20-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480990/946-20-50-5

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-URI https://asc.fasb.org/1943274/2147480990/946-20-50-6

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
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-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477968/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
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-URI https://asc.fasb.org/1943274/2147477968/946-235-50-2

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
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-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Subparagraph (SX 210.6-07(2)(c))
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(e))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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-URI https://asc.fasb.org/850/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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-URI https://asc.fasb.org/1943274/2147483326/850-10-50-6

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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-Subparagraph (a)
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-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

+ Details

Fifth Era Acquisition Corp I 10-Q