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Commitments And Contingencies (Narrative) (Details) $ in Millions | Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($)
--- | --- | ---
Contract Termination |  |
Loss Contingencies |  |
Receivables | $ 36.7 | $ 42.3
Weighted Average Cost of Capital |  |
Loss Contingencies |  |
Weighted average cost of capital | 0.133 |

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