Fair Values Determination of Assets Acquired and Liabilities Assumed in Acquisition (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Dec. 31, 2013	Mar. 30, 2013 Mayo Healthcare Pty Limited
Business Acquisition [Line Items]
Current assets			$ 24,287
Property, plant and equipment			306
Customer lists intangible asset			9,335
Goodwill	1,372,058	1,354,203	15,986
Total assets acquired			49,914
Current liabilities			18,595
Deferred tax liabilities			2,800
Liabilities assumed			21,395
Net assets acquired			$ 28,519

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Amount of assets acquired at the acquisition date.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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