Subsequent events (Details) $ in Millions	Jan. 04, 2023 USD ($) shares
PERC Water Corporation \| Subsequent Event [Member]
Subsequent Event [Line Items]
Cash	$ 2.4
Ownership interest held	100.00%
PERC Water Corporation
Subsequent Event [Line Items]
Ownership interest acquired	39.00%
Cash	$ 7.8
PERC Water Corporation \| Subsequent Event [Member]
Subsequent Event [Line Items]
Ownership interest acquired	39.00%
Cash	$ 2.4
Shares of the Company's common stock \| shares	368,383

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Number of shares of stock issued during the period pursuant to acquisitions.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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