Fair Value Measurements - Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis (Details) - Estimate of Fair Value Measurement - Coffee-related Derivative Instruments - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative liabilities	$ 7,058	$ 3,467
Coffee-related derivative liabilities	727	219
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative liabilities	0
Coffee-related derivative liabilities	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative liabilities	7,058	3,467
Coffee-related derivative liabilities	727	219
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative liabilities	0
Coffee-related derivative liabilities	$ 0	$ 0