v3.26.1
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS (Details)
6 Months Ended 9 Months Ended
Feb. 24, 2026
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Nov. 26, 2024
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Oct. 23, 2024
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Oct. 02, 2024
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Jul. 22, 2024
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Mar. 28, 2024
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Mar. 14, 2024
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Feb. 06, 2024
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Feb. 02, 2024
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Aug. 08, 2023
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Feb. 01, 2023
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Feb. 04, 2021
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Oct. 19, 2020
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Jun. 30, 2026
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Dec. 04, 2024
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Feb. 23, 2026
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Dec. 31, 2025
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Jul. 21, 2025
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Jul. 11, 2025
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Oct. 31, 2024
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Mar. 13, 2024
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Jan. 19, 2023
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Feb. 01, 2021
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DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Share redemption period upon notice of business combination                           2 days                    
Company obligation if business combination not formed, redemption percentage of outstanding public shares                           100.00%                    
Maximum number of times Business Combination period can be extended | item   23             11                              
Amount deposited into trust account for each extension of Business Combination period                 $ 25,000                              
Number of days prior notice for extension of business combination   5 days                                            
Threshold business combination extension period   23 months                                            
Cash                           $ 271,211                    
Working capital deficit                           2,360,778                    
Amount outstanding                           $ 500,000     $ 500,000              
Other Liability, Noncurrent, Related Party, Type [Extensible Enumeration]                           Related Party     Related Party              
Proceeds from working capital loan - related party                           $ 435,771                    
Outstanding note                           2,257,771     $ 1,822,000              
Mustang Sponsor LLC                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Trust assets available for working capital loan repayment                           0                    
2024 Note and the October 2024 Promissory Note                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Number of draws approved | item                             9                  
Amount approved in each draw                             $ 25,000                  
Aggregate amount of deposit into the trust account for its public stockholders     $ 50,000 $ 50,000                     $ 225,000                  
Sponsor | Mustang Sponsor LLC                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Principal amount                                           $ 500,000    
Sponsor | Founder Shares                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Percentage of outstanding shares held               99.60%                                
Sponsor | Related Party Loans | Mustang Sponsor LLC                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Maximum borrowing capacity of related party promissory note                                           $ 500,000    
Borrowings available                           0     0              
Sponsor | Promissory Notes with Related Party                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Maximum borrowing capacity of related party promissory note                   $ 500,000                            
Proceeds from working capital loan - related party                   $ 500,000                            
Borrowings available                                 0              
Outstanding note                           500,000     500,000              
Sponsor | 2024 Note                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Maximum borrowing capacity of related party promissory note                                         $ 500,000      
Proceeds from working capital loan - related party         $ 140,000 $ 235,000 $ 125,000                                  
Outstanding note                           500,000     500,000              
Sponsor | July 11th Note                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Borrowings available                           0     0              
Outstanding note                           150,000     150,000              
Principal amount of note                                     $ 150,000          
Sponsor | February 2026 Promissory note                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Maximum borrowing capacity of related party promissory note                               $ 435,771                
Proceeds from working capital loan - related party $ 435,771                                              
Borrowings available                           0                    
Starwood Capital Group Management LLC | October 2024 Promissory Note                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Borrowings available                           0                    
Outstanding note                           400,000     400,000              
Principal amount of note                                       $ 400,000        
Madison Grose | July 21st Note                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Borrowings available                           0     0              
Outstanding note                           $ 272,000     $ 272,000              
Principal amount of note                                   $ 272,000            
Class A ordinary shares                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Number of warrants issued | shares                           37,225,000     37,225,000              
Number of shares redeemed | shares                     101,396,386     1,315,813                    
Value of shares redeemed                     $ 1,032,028,964     $ 15,111,008                    
Ordinary shares, shares outstanding | shares                           25,589,480     25,589,480              
Redemption value per share | $ / shares                           $ 11.48                    
Class A ordinary shares | Sponsor                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Ordinary shares, shares outstanding | shares                           25,589,480     25,589,480              
Class A ordinary shares | Sponsor | Founder Shares                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Aggregate number of shares outstanding | shares               25,500,000                                
Class A ordinary shares subject to possible redemption                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Company obligation if business combination not formed, redemption percentage of outstanding public shares                           100.00%                    
Number of shares redeemed | shares                 698,321                              
Value of shares redeemed                 $ 7,662,572                              
Ordinary shares, shares outstanding | shares                           89,480     89,480              
Redemption value per share | $ / shares                           $ 11.99     $ 11.86              
Class B ordinary shares                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Ordinary shares, shares outstanding | shares                           375,000     375,000              
Class B ordinary shares | Sponsor                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Aggregate convertible securities | shares               25,500,000                                
Conversion of class split               1                                
Ordinary shares, shares outstanding | shares                           375,000     375,000              
Class B ordinary shares | Sponsor | Founder Shares                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Aggregate number of shares outstanding | shares                                             25,875,000 25,875,000
Working Capital Loan | Sponsor | Related Party Loans                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Price of warrant (in dollars per share) | $ / shares                           $ 2                    
Working Capital Loan | Sponsor | Related Party Loans | Mustang Sponsor LLC                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Price of warrant (in dollars per share) | $ / shares                           $ 2                    
Loan conversion agreement warrant                           $ 1,500,000                    
Amount outstanding                           $ 500,000     $ 500,000              
Other Liability, Noncurrent, Related Party, Type [Extensible Enumeration]                           us-gaap:NonrelatedPartyMember     us-gaap:NonrelatedPartyMember              
Working Capital Loan | Class A ordinary shares | Sponsor | Related Party Loans | Mustang Sponsor LLC                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Price of warrant (in dollars per share) | $ / shares                           $ 2                    
Initial Public Offering                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Number of units issued | shares                       103,500,000                        
Purchase price, per unit (in dollars per share) | $ / shares                       $ 10                        
Proceeds from issuance initial public offering                       $ 1,035,000,000                        
Transaction costs                       57,010,008                        
Underwriting fees, net                       19,800,000                        
Underwriting fee reimbursements                       900,000                        
Deferred underwriting fees                       36,225,000                        
Other offering costs                       $ 985,008                        
Over-allotment option                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Number of units issued | shares                       13,500,000                        
Purchase price, per unit (in dollars per share) | $ / shares                       $ 10                        
Private Placement | Private Placement Warrants                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Number of warrants issued | shares                       11,350,000                        
Price of warrant (in dollars per share) | $ / shares                       $ 2                        
Proceeds from sale of private placement warrants                       $ 22,700,000                        
Minimum                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Business combinations to complete, incorporation agreement | item                         1                      
Threshold minimum aggregate fair market value as percentage of net assets held In trust account                           80.00%                    
Post-transaction requirement, equity ownership in outstanding voting securities of target company                           50.00%                    
Maximum                                                
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS                                                
Maturity term of U.S. government securities                           185 days                    
Share redemption limit without Company consent, percentage                           15.00%                    
Period to cease operations if business combination not formed                           10 days                    
Interest earned on Trust assets to use for dissolution expenses                           $ 100,000