Acquisition - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Dec. 19, 2012
Business Acquisition [Line Items]
Acquisition of assets and liabilities	$ 150
Initial cash payment	115
Holdback payment for working capital true-ups	5
Contingent payments, total	30
Purchase price allocation, goodwill	83.3
Purchase price allocation, intangible assets	58.8
Estimated fair value of the performance-based contingent consideration	$ 22.7

Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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+ Details

- Definition

Fair Value of the liabilities incurred by the acquirer to former owners of the acquiree, including the fair value of any contingent consideration. If liabilities transferred as consideration remain within the combined entity after the business combination (for example, because the assets or liabilities were transferred to the acquiree rather than to its former owners), and the acquirer therefore retains control of them; in that situation, the acquirer measures those liabilities at their carrying amounts immediately before the acquisition date.

+ References

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+ Details

- 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.

+ References+ Details