Goodwill and Intangible Assets, Net (Tables)

3 Months Ended

Mar. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the period ended March 30, 2014 from December 29, 2013 were as follows:

	Human Health			Environmental Health			Consolidated
	(In thousands)
Balance at December 29, 2013	$	1,648,332		$	494,788		$	2,143,120
Foreign currency translation	(502		)	(143		)	(645		)
Balance at March 30, 2014	$	1,647,830		$	494,645		$	2,142,475

Identifiable Intangible Asset Balances

Identifiable intangible asset balances at March 30, 2014 and December 29, 2013 by category were as follows:

	March 30, 2014			December 29, 2013
	(In thousands)
Patents	$	39,591		$	39,591
Less: Accumulated amortization	(24,864		)	(24,207		)
Net patents	14,727			15,384
Trade names and trademarks	36,057			36,058
Less: Accumulated amortization	(17,310		)	(16,457		)
Net trade names and trademarks	18,747			19,601
Licenses	79,098			79,180
Less: Accumulated amortization	(54,938		)	(52,930		)
Net licenses	24,160			26,250
Core technology	302,011			302,070
Less: Accumulated amortization	(178,908		)	(169,326		)
Net core technology	123,103			132,744
Customer relationships	321,421			321,395
Less: Accumulated amortization	(141,901		)	(132,833		)
Net customer relationships	179,520			188,562
IPR&D	9,470			9,483
Less: Accumulated amortization	(2,429		)	(2,178		)
Net IPR&D	7,041			7,305
Net amortizable intangible assets	367,298			389,846
Non-amortizing intangible assets:
Trade names and trademarks	70,584			70,584
Total	$	437,882		$	460,430