XML 168 R153.htm IDEA: XBRL DOCUMENT
v3.22.1

Mezzanine and Members' Equity (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 person Vote | Dec. 31, 2021 person Vote
Mezzanine and Members' Equity |  |
Number of managers on board | person | 6 | 6
Number of votes per unit | Vote | 1 | 1

X
- Definition Represents the number of managers on board. + References No definition available. + Details
Name: | svsvu_NumberOfManagersOnBoard
Namespace Prefix: | svsvu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of votes per unit. + References No definition available. + Details
Name: | svsvu_NumberOfVotesPerUnit
Namespace Prefix: | svsvu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration