Commitments and Contingencies - Deposit (Details) - USD ($) $ in Thousands |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Commitment and Contingencies | |||
| Current portion | $ 14,878 | $ 27,572 | |
| Idaho Power Company | |||
| Commitment and Contingencies | |||
| Balance at beginning of period | 15,222 | ||
| Deposits | 11,600 | $ 18,759 | |
| Costs incurred - expense | (16,879) | (4) | |
| Current portion | 9,943 | 18,755 | |
| Balance at end of period | 9,943 | $ 18,755 | |
| ATCO Structures & Logistics (USA) Inc. | Supply and installation agreement | |||
| Commitment and Contingencies | |||
| Balance at beginning of period | 12,350 | ||
| Costs incurred - asset | (7,415) | ||
| Current portion | 4,935 | ||
| Balance at end of period | $ 4,935 | ||