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Equity-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Share-Based Payment Arrangement, Option, Activity | The following table summarizes the activity relating to the Legacy Plan of NuScale LLC (historical NuScale LLC units adjusted using the exchange ratio):
Share Options |  | Number of Shares |  | Weighted Average Exercise Price
Outstanding at December 31, 2021 |  | 15,393,670 |  |  | $ | 3.64 |
Granted |  | 208,013 |  |  | 9.53 |
Exercised |  | (775,094) |  |  | 1.22 |
Forfeited |  | (38,797) |  |  | 6.80 |
Expired |  | (44,859) |  |  | 3.24 |
Outstanding at June 30, 2022 |  | 14,742,933 |  |  | 3.87 |
Exercisable at June 30, 2022 |  | 12,721,473 |  |  | 3.41 |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions | The following assumptions were used in determining the fair value of options granted during the six months ended June 30:
| 2022
Risk-free interest rate | 1.44 | %
Expected dividend yield | NA
Expected option life | 6.25 years
Expected price volatility | 73.98 | %

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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