Commitments and Contingencies - Commitments (Details) $ in Millions	Mar. 31, 2018 USD ($)
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase Obligation	$ 616.6
Accrued Estimate Carrying Charges Or Obsolete Materials Charges	$ 25.8

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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