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Purchase Price of Common Stock and Outstanding Common Stock (Parenthetical) (Detail) (USD $) | 1 Months Ended
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Sep. 29, 2012
Business Combination Allocation of Purchase Price [Line Items] |
Common shares issued to Tyco shareholders | 110,886,444
Price per share | $ 43.39
Business acquisition cost cash paid for entity acquired - shares | 12,490

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