Acquisitions (Details) (SkyScan N.V., USD $) In Millions, unless otherwise specified	Mar. 08, 2012
Consideration Transferred:
Cash paid	$ 24.6
Cash acquired	(2.9)
Total consideration transferred	21.7
Allocation of Consideration Transferred:
Accounts receivable	3.2
Inventories	7.0
Other current assets	0.3
Property, plant and equipment	2.4
Goodwill	9.9
Liabilities assumed	(14.7)
Total consideration transferred	21.7
Existing technology and related patents
Allocation of Consideration Transferred:
Intangible assets	7.2
Customer and distributor relationships
Allocation of Consideration Transferred:
Intangible assets	$ 6.4

Amount of cash paid to acquire the entity.

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The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials.

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The amount of acquisition cost of a business combination allocated to receivables.

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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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This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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