v3.26.1
Cover
Apr. 29, 2026
Document Information Line Items  
Entity Registrant Name Plutonian Acquisition Corp II
Entity Central Index Key 0002065661
Document Type 8-K
Amendment Flag false
Entity Emerging Growth Company true
Document Period End Date Apr. 29, 2026
Entity Ex Transition Period false
Entity File Number 0-43249
Entity Incorporation State Country Code E9
Entity Address Address Line 1 1216 Broadway
Entity Address City Or Town New York
Entity Address State Or Province NY
Entity Address Postal Zip Code 10001
City Area Code 646
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Local Phone Number 886-8892
Units Class A Ordinary Share [Member]  
Document Information Line Items  
Security 12b Title Units, each consisting of one Class A ordinary share, par value $0.0001 per share, and right
Trading Symbol PLUNU
Security Exchange Name NYSE
Class A ordinary shares [Member]  
Document Information Line Items  
Security 12b Title Class A ordinary shares, par value $0.0001 per share
Trading Symbol PLUN
Security Exchange Name NYSE
One Class A ordinary share upon initial business combination [Member]  
Document Information Line Items  
Security 12b Title Rights, with each right entitling the holder to receive one-fourth of one Class A ordinary share upon completion of an initial business combination
Trading Symbol PLUNR
Security Exchange Name NYSE