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Commitments and Contingencies (Narrative 1) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Revestive and Natpara
Performance Commitment, Remaining Minimum Amount Committed	$ 17.4
Other Service Agreements
Performance Commitment, Remaining Minimum Amount Committed	$ 43.2

The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity must commit resources to supply goods or services to one or more customers.

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