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Derivatives, Hedging Programs and Other Financial Instruments - Additional Information (Details) - USD ($) | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Derivative [Line Items] |  |
Collateral posted for net derivatives | $ 0 | $ 0
Cash collateral posted from customers | 0 | 0
Designated as Hedging Instrument | Purchase |  |
Derivative [Line Items] |  |
Derivative net liability | $ 0 | $ 2,700,000

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