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Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$ 737,135	$ 711,066
Gross Profit	421,576	391,193
Unallocated corporate general and administrative expenses	20,048	16,575
Industrial Technology
Segment Reporting Information [Line Items]
Net sales	182,239	195,136
Percent change in Net Sales	(6.6)
Gross Profit	93,311	98,663
Percent change in Gross Profit	(5.4)
Operating profit	52,945	57,507
Percent change in Operating Profit	(7.9)
Long-Lived assets	45,626	42,698
Percent change in Long-lived assets	6.9
Energy Systems And Controls
Segment Reporting Information [Line Items]
Net sales	145,642	148,602
Percent change in Net Sales	(2)
Gross Profit	80,906	80,408
Percent change in Gross Profit	0.6
Operating profit	35,722	35,657
Percent change in Operating Profit	0.2
Long-Lived assets	19,032	19,439
Percent change in Long-lived assets	(2.2)
Medical And Scientific Imaging
Segment Reporting Information [Line Items]
Net sales	200,444	162,811
Percent change in Net Sales	23.1
Gross Profit	134,869	106,186
Percent change in Gross Profit	27.0
Operating profit	59,928	43,362
Percent change in Operating Profit	38.2
Long-Lived assets	40,198	45,602
Percent change in Long-lived assets	(11.8)
RF Technology
Segment Reporting Information [Line Items]
Net sales	208,810	204,517
Percent change in Net Sales	2.1
Gross Profit	112,490	105,936
Percent change in Gross Profit	6.2
Operating profit	56,630	50,353
Percent change in Operating Profit	12.5
Long-Lived assets	$ 29,158	$ 29,832
Percent change in Long-lived assets	(2.3)

X

- Definition

The percent change in aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity, from the previous period to the current period.

+ References

No definition available.

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- Definition

The percent change in total revenue from sales of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances and sales discounts, from the previous period to the current period.

+ References

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- Definition

The percent change in the total amount of profit or loss for reportable segments, from the previous period to the current period.

+ References

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- Definition

The percent change in total assets for reportable segments, from the previous period to the current period.

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- Definition

Sum of the carrying amounts as of the balance sheet date of segment long-lived assets.

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- Definition

The net result for the period of deducting operating expenses from operating revenues before Corporate expenses.

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- Definition

The unallocated expenses reported by segment of managing and administering the affairs of an entity which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1,2)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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