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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
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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

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