| Cover | Dec. 10, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 10, 2024 |
| Entity File Number | 001-41125 |
| Entity Registrant Name | APX Acquisition Corp. I |
| Entity Central Index Key | 0001868573 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 714 Westview Avenue |
| Entity Address, City or Town | Nashville |
| Entity Address, State or Province | TN |
| Entity Address, Postal Zip Code | 37205 |
| City Area Code | (202) |
| Local Phone Number | 465-5882 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one-half of one Redeemable Warrant | |
| Title of 12(b) Security | Units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one-half of one Redeemable Warrant |
| Trading Symbol | APXIU |
| Security Exchange Name | NASDAQ |
| Class A Ordinary Shares, par value $0.0001 per share | |
| Title of 12(b) Security | Class A Ordinary Shares, par value $0.0001 per share |
| Trading Symbol | APXI |
| Security Exchange Name | NASDAQ |
| Warrant, each whole warrant exercisable for one Class A Ordinary Share for $11.50 per share | |
| Title of 12(b) Security | Warrant, each whole warrant exercisable for one Class A Ordinary Share for $11.50 per share |
| Trading Symbol | APXIW |
| Security Exchange Name | NASDAQ |
