| Document and Entity Information | Apr. 06, 2024 |
| Document And Entity Information [Line Items] | |
| Entity Tax Identification Number | 00-0000000 |
| Entity Address, Region | GRAND CAYMAN |
| Amendment Flag | true |
| Entity Central Index Key | 0001868573 |
| Document Type | 8-K/A |
| Document Period End Date | Apr. 06, 2024 |
| Entity Registrant Name | APX Acquisition Corp. I |
| Entity Incorporation State Country Code | E9 |
| Entity File Number | 001-41125 |
| Entity Address, Address Line One | 714 Westview Avenue |
| Entity Address, City or Town | Nashville |
| Entity Address, Country | TN |
| 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 |
| Entity Ex Transition Period | false |
| Amendment Description | On April 11, 2024, the Company (as defined below) filed a Current Report on Form 8-K (the “Form 8-K”) with the U.S. Securities and Exchange Commission (the “SEC”) regarding the appointment of Thomas P.M. Barry and Fara Remtulla to the board of directors of the Company. This Amendment to the Form 8-K is being filed to provide further disclosure on director independence and committee appointments in connection therewith. Except as described above, all other information in the Form 8-K remains unchanged. |
| Units Each Consisting Of One Class A Ordinary Share Par Value 0.0001 Per Share And One Half Of One Redeemable Warrant 3 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 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 1 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 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 2 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrant, each whole warrant exercisable for one Class A Ordinary Share for $11.50 per share |
| Trading Symbol | APXIW |
| Security Exchange Name | NASDAQ |
