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Cover
Aug. 30, 2021
Document Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Aug. 30, 2021
Entity File Number 001-39736
Entity Registrant Name Spring Valley Acquisition Corp.
Entity Central Index Key 0001822966
Entity Tax Identification Number 98-1588588
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, and one-half of one redeemable warrant  
Document Information [Line Items]  
Title of 12(b) Security Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant
Trading Symbol SVSVU
Security Exchange Name NASDAQ
Common Class A [Member]  
Document Information [Line Items]  
Title of 12(b) Security Class A ordinary shares included as part of the units
Trading Symbol SV
Security Exchange Name NASDAQ
Warrant [Member]  
Document Information [Line Items]  
Title of 12(b) Security Warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50
Trading Symbol SVSVW
Security Exchange Name NASDAQ