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Discontinued operations - Narrative (Details) $ in Thousands		3 Months Ended	9 Months Ended
	Apr. 17, 2024 USD ($) employee	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)
Discontinued Operations, Disposed of by Sale | Global Cooling
Discontinued Operations [Line Items]
Cash required on closing date, funded by entity	$ 6,652
Repayment of indebtedness	2,600
Other liabilities	$ 2,643
Expected reduction of workforce | employee	47
Expected reduction of workforce (percent)	11.00%
Period of transition services	90 days
Depreciation		$ 100	$ 400
Capital expenditure cost		$ 200	700
Amortization			$ 100
Global Cooling
Discontinued Operations [Line Items]
Cash required on closing date	$ 7,000

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- Definition

Period of expected continuing involvement with a discontinued operation after the disposal date, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 205
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483499/205-20-50-4B

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