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Commitments and Contingencies (Details) $ in Millions | Jan. 03, 2023 USD ($) landEasement | Sep. 30, 2023 USD ($)
--- | --- | ---
Ashtabula III Wind Farm |  |
Other Commitments [Line Items] |  |
Purchase price | $ 50.6 |
Otter Tail Power Company | Federal Energy Regulatory Commission |  |
Other Commitments [Line Items] |  |
Estimated liability of refund obligation |  | $ 2.7
Otter Tail Power Company | Ashtabula III Wind Farm |  |
Other Commitments [Line Items] |  |
Purchase price | $ 50.6 |
Otter Tail Power Company | Ashtabula III Wind Farm | Land Easement Payments |  |
Other Commitments [Line Items] |  |
Number of land easements | landEasement | 51 |
Remaining payments under easements |  | $ 4.0

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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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