Registration	9 Months Ended
Sep. 30, 2026
Registration Of Securities [Abstract]
Registration	Note 3—Registration SPARs and Public Shares Pursuant to the Prospectus, the Company distributed the SPARs as discussed in Note 1, at no cost, to the holders of record of PSTH’s Class A common stock and distributable redeemable warrants. The SPARs were issued pursuant to a SPAR Rights Agreement between the Company and the Rights Agent. The Company intends that the SPARs will be quoted on the NYSE beginning at the SPAR Holder Election Period. The Public Shares will be issued in connection with the Closing. Depending on the form that the Business Combination takes, the Public Shares may be issued as shares of the Surviving Corporation. No fractional SPARs or Public Shares have been or will be issued, a SPAR cannot be exercised in part, and only whole SPARs and Public Shares will trade. The Company intends to issue up to 121,942,598 Public Shares in respect of SPARs issued and outstanding as of September 30, 2026 that will generate aggregate proceeds of a minimum of $1,219,425,980 if all such SPARs are exercised. NYSE SPAR Trading Rule Approved by SEC During 2024, the NYSE had been developing a rule change to the NYSE Listed Company Manual, Section 703.12 Listing Standards for Warrants and Rights. The effect of this rule change would have permitted SPAR trading during the SPAR Holder Election Period to occur on the NYSE (rather than over-the-counter or “pink sheet” markets). On August 19, 2024, the SEC instituted proceedings to determine whether to approve or disapprove the proposed rule change. On December 17, 2024, the NYSE withdrew its proposed rule change after discussions with the SEC. On February 4, 2026, the NYSE resubmitted the proposed rule change to the SEC and on May 18, 2026, the SEC granted approval for the rule change, with effect immediately, allowing SPARs to trade on the NYSE at the beginning of the SPAR Holder Election Period.

Registration

9 Months Ended

Sep. 30, 2026

Registration Of Securities [Abstract]

Note 3—Registration

SPARs and Public Shares

Pursuant to the Prospectus, the Company distributed the SPARs as discussed in Note 1, at no cost, to the holders of record of PSTH’s Class A common stock and distributable redeemable warrants. The SPARs were issued pursuant to a SPAR Rights Agreement between the Company and the Rights Agent. The Company intends that the SPARs will be quoted on the NYSE beginning at the SPAR Holder Election Period. The Public Shares will be issued in connection with the Closing. Depending on the form that the Business Combination takes, the Public Shares may be issued as shares of the Surviving Corporation. No fractional SPARs or Public Shares have been or will be issued, a SPAR cannot be exercised in part, and only whole SPARs and Public Shares will trade. The Company intends to issue up to 121,942,598 Public Shares in respect of SPARs issued and outstanding as of September 30, 2026 that will generate aggregate proceeds of a minimum of $1,219,425,980 if all such SPARs are exercised.

NYSE SPAR Trading Rule Approved by SEC

During 2024, the NYSE had been developing a rule change to the NYSE Listed Company Manual, Section 703.12 Listing Standards for Warrants and Rights. The effect of this rule change would have permitted SPAR trading during the SPAR Holder Election Period to occur on the NYSE (rather than over-the-counter or “pink sheet” markets). On August 19, 2024, the SEC instituted proceedings to determine whether to approve or disapprove the proposed rule change. On December 17, 2024, the NYSE withdrew its proposed rule change after discussions with the SEC. On February 4, 2026, the NYSE resubmitted the proposed rule change to the SEC and on May 18, 2026, the SEC granted approval for the rule change, with effect immediately, allowing SPARs to trade on the NYSE at the beginning of the SPAR Holder Election Period.