S-K 1602(a)(3) Forepart, Sponsor Compensation - Black Spade Sponsor LLC III |
Sep. 30, 2025
USD ($)
$ / shares
shares
|
|---|---|
| Common Class B [Member] | |
| SPAC Offering Forepart, Sponsor Compensation [Line Items] | |
| Securities Issued or to be Issued, Shares | shares | 5,000,000 |
| Price Paid or to be Paid for Securities, Total Amount | $ | $ 25,000 |
| Price Paid or to be Paid for Securities, Per Share | $ / shares | $ 0.004 |
| Private Placement Warrants [Member] | |
| SPAC Offering Forepart, Sponsor Compensation [Line Items] | |
| Securities Issued or to be Issued, Shares | shares | 6,550,000 |
| Price Paid or to be Paid for Securities, Total Amount | $ | $ 3,275,000 |
| Price Paid or to be Paid for Securities, Per Share | $ / shares | $ 0.5 |