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Related Party Transactions (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Dec. 17, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Related Party Transactions (Details) [Line Items] |  |  |  |
Maturity date | On December 17, 2019, the Company loaned $15.0 million to Digital Grid under a term loan agreement with a maturity date of April 30, 2020 and a fixed interest rate of 5.0% (the “$15.0 Million Loan”). |  |  |
Loan included notes receivable |  | $ 15.0 |  |
Interest income |  | 0.8 | $ 0.1 | $ 0.7
Interest receivable |  | 15.0 |  |
Notes receivable |  | $ 0.2 | $ 0.2 |
Loan [Member] |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |
Loan amount | $ 15.0 |  |  |
Fixed interest rate | 5.00% |  |  |
Subsequent loan | $ 15.0 |  |  |

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