Industry Segment Information (Tables)

6 Months Ended

Jul. 01, 2012

Segment Reporting [Abstract]

Schedule of Sales and Operating Income by Operating Segment, Excluding Discontinued Operations

Revenue and operating income (loss) by operating segment, excluding discontinued operations, are shown in the table below:

	Three Months Ended						Six Months Ended
	July 1, 2012			July 3, 2011			July 1, 2012			July 3, 2011
	(In thousands)
Human Health
Product revenue	$	219,721		$	185,480		$	435,550		$	354,226
Service revenue	38,701			33,337			76,833			65,912
Total revenue	258,422			218,817			512,383			420,138
Operating income from continuing operations	31,538			28,446			53,483			49,983
Environmental Health
Product revenue	144,522			140,939			285,886			278,319
Service revenue	118,846			119,309			234,411			227,786
Total revenue	263,368			260,248			520,297			506,105
Operating income from continuing operations	28,159			21,748			54,554			51,990
Corporate
Operating loss from continuing operations(1)	(9,910		)	(10,775		)	(21,868		)	(21,123		)
Continuing Operations
Product revenue	$	364,243		$	326,419		$	721,436		$	632,545
Service revenue	157,547			152,646			311,244			293,698
Total revenue	521,790			479,065			1,032,680			926,243
Operating income from continuing operations	49,787			39,419			86,169			80,850
Interest and other expense, net (see Note 5)	11,358			4,271			24,188			10,027
Income from continuing operations before income taxes	$	38,429		$	35,148		$	61,981		$	70,823

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⁽¹⁾  The expenses related to mark-to-market and curtailments on postretirement benefit plans have been included in the Corporate operating loss from continuing operations, and together constituted a pre-tax loss of $1.2 million and a pre-tax gain of $0.2 million for the six months ended July 1, 2012 and July 3, 2011, respectively.