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Divestiture - Additional Information (Detail) (Discovery Labware [Member], USD $) In Thousands, unless otherwise specified	1 Months Ended
	Oct. 31, 2012
Discovery Labware [Member]
Divestitures [Line Items]
Proceeds expected from sale of productive assets	$ 724,071
Pre-tax gain on sale	561,749
After-tax gain on sale	346,555
Amount of goodwill derecognized	$ 16,601

Amount of gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component.

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

Write-off of the carrying amount of goodwill associated with all or a portion of a reporting unit that is sold in the period.