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Commitments and Contingencies (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Purchase Commitments
Purchase commitments	$ 161,723
Inventory commitments
Purchase Commitments
Purchase commitments	102,760
Operating expenses
Purchase Commitments
Purchase commitments	45,969
Capital commitments
Purchase Commitments
Purchase commitments	$ 12,994

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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