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Cover
Oct. 12, 2022
Document Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 12, 2022
Current Fiscal Year End Date --12-31
Entity File Number 001-41529
Entity Registrant Name SPRING VALLEY ACQUISITION CORP. II
Entity Central Index Key 0001843477
Entity Tax Identification Number 98-1579063
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 2100 McKinney Ave.
Entity Address, Address Line Two Suite 1675
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75201
City Area Code 214
Local Phone Number 308-5230
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 Class A ordinary share, $0.0001 par value, one right and one-half of one redeemable public warrant [Member]  
Document Information [Line Items]  
Title of 12(b) Security Units, each consisting of one Class A ordinary share, $0.0001 par value, one right and one-half of one redeemable public warrant
Trading Symbol SVIIU
Security Exchange Name NASDAQ
Common Class A [Member]  
Document Information [Line Items]  
Title of 12(b) Security Class A ordinary shares, par value $0.0001 per share
Trading Symbol SVII
Security Exchange Name NASDAQ
Rights included as part of the units to acquire one-tenth (1/10) of one share of Class A ordinary share [Member]  
Document Information [Line Items]  
Title of 12(b) Security Rights included as part of the units to acquire one-tenth (1/10) of one share of Class A ordinary share
Trading Symbol SVIIR
Security Exchange Name NASDAQ
Redeemable public warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 [Member]  
Document Information [Line Items]  
Title of 12(b) Security Redeemable public warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise
Trading Symbol SVIIW
Security Exchange Name NASDAQ