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v3.24.1.1.u2

Contingencies and Guaranty (Details) $ in Thousands, people in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) | Nov. 30, 2023 USD ($) | Sep. 30, 2023 USD ($) | Jul. 31, 2023 USD ($) | Apr. 30, 2023 USD ($) | Oct. 31, 2022 | Sep. 30, 2022 USD ($) | Feb. 28, 2021 USD ($) people | Dec. 31, 2020 people | Dec. 31, 2023 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Mar. 31, 2022 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of people | people |  |  |  |  |  |  |  | 3.6 | 7.5 |  |  |  |  |
Contingent liability |  |  |  |  |  |  |  | $ 20,000 |  |  | $ 15,000 | $ 0 |  |
Derecognition of contingent liability related to sale of intangible assets |  |  |  |  |  |  |  |  |  |  | 19,249 | 0 |  |
Contingent liability |  |  |  |  |  |  |  |  |  |  | 1,000 | 20,249 |  |
Payments to acquire intangible assets |  |  |  |  |  |  |  |  |  |  | 17,031 | 25,004 |  |
Increase in deposit assets |  |  |  |  |  |  |  |  |  | $ 7,500 | 7,500 |  |  |
Prepayments received |  |  |  |  |  |  |  |  |  |  | 122,212 | $ 60,759 |  | $ 54,678
Xcel Energy | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment received |  | $ 21,200 |  | $ 21,200 |  |  |  |  |  |  |  |  |  |
Agreement term |  |  |  |  |  | 20 years |  |  |  |  |  |  |  |
Prepayments received |  |  |  |  |  |  |  |  |  |  | 67,100 |  | $ 8,000 |
Xcel Energy | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayments received |  |  |  |  |  |  |  |  |  |  | 65,200 |  |  |
SDG&E | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment received | $ 200 |  | $ 25,200 |  |  |  | $ 200 |  |  |  |  |  |  |
Milestone delivery delay adjustments |  |  | $ 1,100 |  |  |  |  |  |  |  |  |  |  |
Lower Colorado River Authority (LCRA) | Wireless Licenses |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire intangible assets |  |  |  |  | $ 30,000 |  |  |  |  |  |  |  |  |
Lower Colorado River Authority (LCRA) | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial payment received |  |  |  |  |  |  |  |  |  | $ 15,000 | $ 15,000 |  |  |
SDG&E |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  |  |  |  |  | $ 50,000 |  |  |  |  |  |

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