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Commitments and contingencies (Details) gal in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) gal	Dec. 31, 2023 USD ($)	Dec. 31, 2022
Contingencies
Purchase obligations | $	$ 15.6
Percentage of consolidated revenue from Cayman Water retail operations	24.00%	17.00%	27.00%
Percentage of consolidated gross profit from Cayman Water retail operations	38.00%	26.00%	44.00%
Percentage of revenue collected paid	7.50%
CW-Bahamas
Contingencies
Accounts receivable | $	$ 28.4	$ 26.9
Percentage of delinquent account receivables	81.00%	80.00%
Blue Hills Water Works Plant | CW-Bahamas
Contingencies
Gallons of water delivered per week | gal	63.0
Windsor Water Plant | CW-Bahamas
Contingencies
Gallons of water delivered per week | gal	16.8

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- Definition

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- Definition

Represents the gallons of water delivered per week,

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- Definition

Percentage of delinquent account receivable balance

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
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- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

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- Definition

Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue.

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