Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Business Segments (Schedule of Information on Company's Business Segments) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 549,696	$ 514,881	$ 1,052,268	$ 1,017,079
Operating income	112,976	109,909	215,533	211,666
Interest expense	11,205	10,584	21,694	21,181
Other (income) expense - net	(1,874)	827	(2,618)	(896)
Income before income taxes	103,645	98,498	196,457	191,381
Total assets	3,109,356		3,109,356		$ 2,805,443
Intersegment elimination
Segment Reporting Information [Line Items]
Net sales	(293)	(758)	(525)	(2,550)
Corporate office and other
Segment Reporting Information [Line Items]
Operating income	(16,130)	(15,490)	(31,077)	(34,250)
Total assets	126,646		126,646		123,008
Fluid & Metering Technologies
Segment Reporting Information [Line Items]
Segment sales	221,810	215,293	433,653	433,541
Operating income	53,865	51,857	105,266	107,755
Fluid & Metering Technologies \| External customers
Segment Reporting Information [Line Items]
Segment sales	221,635	214,983	433,344	432,915
Total assets	1,118,917		1,118,917		1,125,266
Fluid & Metering Technologies \| Intersegment elimination
Segment Reporting Information [Line Items]
Segment sales	175	310	309	626
Health & Science Technologies
Segment Reporting Information [Line Items]
Segment sales	186,568	188,405	372,911	367,525
Operating income	41,125	42,060	81,824	79,517
Health & Science Technologies \| External customers
Segment Reporting Information [Line Items]
Segment sales	186,453	188,046	372,704	365,796
Total assets	1,110,302		1,110,302		1,108,302
Health & Science Technologies \| Intersegment elimination
Segment Reporting Information [Line Items]
Segment sales	115	359	207	1,729
Fire & Safety/Diversified Products
Segment Reporting Information [Line Items]
Segment sales	141,611	111,941	246,229	218,563
Operating income	34,116	31,482	59,520	58,644
Fire & Safety/Diversified Products \| External customers
Segment Reporting Information [Line Items]
Segment sales	141,608	111,852	246,220	218,368
Total assets	753,491		753,491		$ 448,867
Fire & Safety/Diversified Products \| Intersegment elimination
Segment Reporting Information [Line Items]
Segment sales	$ 3	$ 89	$ 9	$ 195