Acquisitions (Purchase Price Allocation To Assets Acquired And Liabilities Assumed) (Details) (Enobia Pharma Corp. [Member], USD $) In Thousands, unless otherwise specified	Feb. 07, 2012
Business Acquisition [Line Items]
Cash and cash equivalents	$ 18,141
Other assets	910
Assets acquired	611,587
Deferred tax liability (net)	31,665
Other liabilities assumed	(13,246)
Liabilities assumed	44,911
Goodwill	174,200
Net assets acquired	740,876
Purchased Technology [Member]
Business Acquisition [Line Items]
Other Current Assets	5,536
In Process Research And Development Member
Business Acquisition [Line Items]
In-process research and development	$ 587,000

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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The amount of acquisition cost of a business combination allocated to assets acquired.

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The amount of acquisition cost of a business combination allocated to current assets.

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The amount of cash and cash equivalents acquired in a business combination.

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The amount of acquisition cost of a business combination allocated to current liabilities of the acquired entity.

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Amount of deferred tax assets or liabilities for the differences between the values assigned and the tax bases of assets and liabilities in a business combination, net of any valuation allowance for deferred tax assets.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will not be amortized. Does not include goodwill.

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The amount of acquisition cost of a business combination allocated to liabilities assumed.

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The amount of acquisition cost of a business combination allocated to noncurrent assets of the acquired entity, except for property plant and equipment, intangible assets, and goodwill.

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