XML 22 R1.htm IDEA: XBRL DOCUMENT
v3.21.2

Document and Entity Information | 3 Months Ended
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Mar. 31, 2021
Document and Entity Information |
Document Type | S-4/A
Entity Registrant Name | SPRING VALLEY ACQUISITION CORP.
Entity Filer Category | Non-accelerated Filer
Entity Small Business | true
Entity Emerging Growth Company | true
Entity Ex Transition Period | false
Entity Central Index Key | 0001822966
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Amendment Description | Amendment No. 1

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