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Revenue from Contracts with customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [line Items]
Revenue	$ 363,646	$ 330,750	$ 729,891	$ 635,147
Long-term Contract with Customer
Disaggregation of Revenue [line Items]
Revenue	229,290	253,589	471,771	499,154
Short-term Contract with Customer
Disaggregation of Revenue [line Items]
Revenue	109,194	65,204	217,244	112,459
By-products and other
Disaggregation of Revenue [line Items]
Revenue	$ 25,162	$ 11,957	$ 40,876	$ 23,534

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No definition available.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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-Publisher FASB
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