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Noncontrolling Interests and Loss Per Share - Schedule of Non-Controlling Interests (Details) | Jun. 30, 2022 shares
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Noncontrolling Interest And Earnings Per Share [Abstract] |
NuScale Corp Class A Common Stock (shares) | 42,028,341
NuScale Class B Units (Non-controlling interest) (shares) | 178,396,711
Economic interest (shares) | 220,425,052
NuScale Corp Class A Common Stock, percent of economic interest | 19.10%
NuScale Class B Units (Non-controlling interest). percent of economic interest | 80.90%
Economic interest, percent | 100.00%

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