Derivatives - Fair value of assets and liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Derivatives
Fair value of derivative assets	$ 18,357	$ 15,053
Fair value of derivative liabilities	7,282	7,592
Designated as hedges
Derivatives
Fair value of derivative liabilities	1,298	3,334
Designated as hedges | Coffee futures contracts | Derivative liabilities
Derivatives
Fair value of derivative liabilities	1,298	3,334
Not designated as hedges | Forward purchase and sales contracts | Derivative assets
Derivatives
Fair value of derivative assets	18,357	15,053
Not designated as hedges | Forward purchase and sales contracts | Derivative liabilities
Derivatives
Fair value of derivative liabilities	$ 5,984	$ 4,258