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Contingencies (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Mar. 31, 2022 | Dec. 31, 2021
Contingencies |  |  |  |  |  |
Cayman Water Retail Operations, Percentage Of Revenue | 31.00% | 34.00% | 32.00% | 34.00% |  |
Cayman Water Retail Operations, Percentage Of Gross Profit | 46.00% | 48.00% | 46.00% | 48.00% |  |
WSC [Member] |  |  |  |  |  |
Contingencies |  |  |  |  |  |
Accounts Receivable, Net | $ 13.5 |  | $ 13.5 |  | $ 21.2 | $ 21.5
Payments in accounts receivable | $ 16.4 |  |  |  |  |

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