Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	9 Months Ended	47 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Contractual Obligations
Long-term Purchase Commitment, additional	$ 19.3
Payments made to date	10.6	$ 18.9
Inventories | Coffee
Contractual Obligations
Purchase Obligation, Due in Next Twelve Months	60.4
Long-term Purchase Commitment, Amount	0.9
Inventories | Other Inventory
Contractual Obligations
Purchase Obligation, Due in Next Twelve Months	$ 16.0