Acquisition (Schedule of Assets Acquired And Liabilities Assumed) (Details) (Echologics Engineering, Inc. [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2012
Echologics Engineering, Inc. [Member]
Assets Acquired:
Receivables	$ 0.3
Inventories	0.1
Other current assets	0.2
Property, plant, and equipment	0.1
Identifiable intangible assets	7.3
Liabilities:
Accounts payable and other current liabilities	(0.2)
Deferred income taxes	(0.4)
Assets acquired (liabilities assumed) net	$ 7.4

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- Definition

The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

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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 prepaid expenses and other current assets. Does not include amounts allocated to cash and cash equivalents, marketable securities, receivables, inventory, and assets not to be used.

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

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The amount of acquisition cost of a business combination allocated to accounts payable 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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The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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