| Document and Entity Information | Dec. 08, 2023 |
| 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 |
| Current Fiscal Year End Date | --12-31 |
| Document Type | 8-K/A |
| Document Period End Date | Dec. 08, 2023 |
| 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, 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 December 19, 2023, the Company (as defined below) filed an amended Current Report on Form 8-K (the “Amended Form 8-K”) with the U.S. Securities and Exchange Commission (the “SEC”), amending the Current Report on Form 8-K originally filed by the Company with the SEC on December 14, 2024 (the “Original Form 8-K”). This Amendment No. 2 to the Original Form 8-K corrects for the fact that, following the redemptions elected in connection with the Extension Amendment Proposal (as defined below), 5,597,624 Public Shares (as defined below) remained outstanding (as opposed to the 9,910,124 Public Shares previously reported). Except as described above, all other information in the Amended 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 [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 |
| Capital Unit, Class A [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 [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 |
