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v3.22.1

Commitments and contingencies (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) item | Dec. 31, 2020 USD ($)
Contingencies |  |
Employment Agreement Base Annual Salaries | $ 3.9 |
Number of reporting units | item | 4 |
Cayman Water Retail Operations, Percentage Of Revenue | 33.00% | 32.00%
Cayman Water Retail Operations, Percentage Of Gross Profit | 47.00% | 44.00%
Long-term Purchase Commitment, Amount | $ 5.1 |
WSC [Member] |  |
Contingencies |  |
Accounts Receivable, Net | 21.5 | $ 16.8
Payments in accounts receivable | $ 22.9 |

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