Initial Public Offering - Additional Information (Detail) - $ / shares	Oct. 06, 2025	Sep. 30, 2025
Public Warrants [Member]
Initial Public Offering [Line Items]
Class of warrant issued		0
Class of warrant or right, outstanding		0
Warrant [Member]
Initial Public Offering [Line Items]
Warrant redemption price per warrant		$ 0.01
Warrant [Member] \| Common Class A [Member]
Initial Public Offering [Line Items]
Shares Issued, Price Per Share		11.5
Warrant redemption price per warrant		$ 18
Subsequent Event [Member] \| Common Stock [Member]
Initial Public Offering [Line Items]
Shares Issued, Price Per Share	$ 10
Subsequent Event [Member] \| Common Stock [Member] \| IPO [Member]
Initial Public Offering [Line Items]
Stock issued during period, shares, new issues	23,000,000
Subsequent Event [Member] \| Common Stock [Member] \| Over-Allotment Option [Member]
Initial Public Offering [Line Items]
Stock issued during period, shares, new issues	3,000,000
Subsequent Event [Member] \| Warrant [Member] \| Common Class A [Member]
Initial Public Offering [Line Items]
Shares Issued, Price Per Share	$ 11.5

Range Capital Acquisition Corp II 10-Q