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Estimated Fair Value of Net Assets Acquired and Liabilities Assumed at Acquisition Dates (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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| Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] | ||||||||
| Current assets | $ 14.1 | $ 6.0 | ||||||
| Property and equipment | 4.2 | 0.3 | ||||||
| Other assets | 0.1 | 0.6 | ||||||
| Identifiable intangible assets | 52.2 | [1] | 30.6 | [1] | ||||
| Goodwill | 75.6 | [2] | 47.5 | [2] | ||||
| Total assets acquired | 146.2 | 85.0 | ||||||
| Total liabilities assumed | (13.8) | (8.0) | ||||||
| Non-controlling interest | (0.4) | |||||||
| Net assets acquired | $ 132.4 | $ 76.6 | ||||||
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- Definition
The amount of assets and liabilities of a business combination attributable to non-controlling interest. No definition available.
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- Details
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| X | ||||||||||
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- Definition
The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of acquisition cost of a business combination allocated to assets acquired. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of acquisition cost of a business combination allocated to current assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of acquisition cost of a business combination allocated to liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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