Derivatives - Fair value of assets and liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Derivatives
Fair value of derivative assets	$ 22,531	$ 15,049
Fair value of derivative liabilities	4,221	28,600
Designated as hedges
Derivatives
Fair value of derivative assets	3,115
Fair value of derivative liabilities		26,251
Designated as hedges \| Coffee futures contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeAssetsCurrent
Derivatives
Fair value of derivative assets	133
Designated as hedges \| Coffee futures contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeLiabilitiesCurrent
Derivatives
Fair value of derivative liabilities		110
Designated as hedges \| Commodity swaps \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeAssetsCurrent
Derivatives
Fair value of derivative assets	2,305
Designated as hedges \| Commodity swaps \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeLiabilitiesCurrent
Derivatives
Fair value of derivative liabilities		8,235
Designated as hedges \| Option contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeAssetsCurrent
Derivatives
Fair value of derivative assets	677
Designated as hedges \| Option contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeLiabilitiesCurrent
Derivatives
Fair value of derivative liabilities		17,906
Not designated as hedges
Derivatives
Fair value of derivative assets	19,416	15,049
Not designated as hedges \| Forward purchase and sales contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeAssetsCurrent
Derivatives
Fair value of derivative assets	19,416	15,049
Not designated as hedges \| Forward purchase and sales contracts \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:DerivativeLiabilitiesCurrent
Derivatives
Fair value of derivative liabilities	$ 4,221	$ 2,349