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Goodwill and intangible assets - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jun. 06, 2024
Goodwill and intangible assets
Goodwill impairment losses	$ 0	$ 0	$ 0
Goodwill	62,280	47,803
Amortization of intangible assets	3,390	$ 2,793	$ 2,793
2025	3,400
2026	3,100
2027	2,800
2028	2,800
2029	$ 2,000
USA Refrigerants Acquisition
Goodwill and intangible assets
Goodwill				$ 14,477