Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.22.2.2
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2022
Nov. 14, 2022
Entity Listings [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3  
Document Transition Report false  
Entity Registrant Name Ross Acquisition Corp II  
Entity Central Index Key 0001841610  
Entity Incorporation, State or Country Code E9  
Entity File Number 001-40201  
Entity Tax Identification Number 98-1578557  
Entity Address, Address Line One 1 Pelican Lane  
Entity Address, City or Town Palm Beach  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33480  
City Area Code 561  
Local Phone Number 655-2615  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company true  
Units [Member]    
Entity Listings [Line Items]    
Title of 12(b) Security Units, each consisting of one Class A ordinary share and one-third of one redeemable warrant  
Trading Symbol ROSS.U  
Security Exchange Name NYSE  
Class A Ordinary Shares [Member]    
Entity Listings [Line Items]    
Title of 12(b) Security Class A ordinary shares, par value $0.0001 per share  
Trading Symbol ROSS  
Security Exchange Name NYSE  
Entity Common Stock, Shares Outstanding   34,500,000
Redeemable Warrants [Member]    
Entity Listings [Line Items]    
Title of 12(b) Security Redeemable warrants included as part of the units, each whole warrant exercisable for1shareofClassAordinaryshareatanexercisepriceof$11.50pershare  
Trading Symbol ROSS WS  
Security Exchange Name NYSE  
Class B Ordinary Shares [Member]    
Entity Listings [Line Items]    
Entity Common Stock, Shares Outstanding   8,625,000