| Cover | Apr. 28, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Apr. 28, 2023 |
| Entity File Number | 001-40845 |
| Entity Registrant Name | Parabellum Acquisition Corp. |
| Entity Central Index Key | 0001848165 |
| Entity Tax Identification Number | 86-2219674 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 3811 Turtle Creek Blvd |
| Entity Address, Address Line Two | Suite 2125 |
| Entity Address, City or Town | Dallas |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 75219 |
| City Area Code | 972 |
| Local Phone Number | 591-8349 |
| 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 share of Class A Common Stock and three-quarters of one Redeemable Warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one share of Class A common stock, $0.0001 par value, and three-quarters of one redeemable warrant |
| Trading Symbol | PRBM.U |
| Security Exchange Name | NONE |
| Common Class A [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Shares of Class A common stock, $0.0001 par value |
| Trading Symbol | PRBM |
| Security Exchange Name | NONE |
| Redeemable Warrants, each exercisable for one share of Common Stock at an exercise price of $11.50 per share [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Redeemable warrants, each full warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share |
| Trading Symbol | PRBM.WS |
| Security Exchange Name | NONE |
