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Goodwill (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 Industrial Technology	Mar. 31, 2012 Energy Systems And Controls	Mar. 31, 2012 Medical And Scientific Imaging	Mar. 31, 2012 RF Technology
Goodwill [Line Items]
Balances	$ 2,887,045	$ 2,866,426	$ 419,053	$ 393,967	$ 768,228	$ 1,285,178
Additions			0	8,629	0	0
Currency translation adjustments			3,240	1,448	5,040	2,262
Balances	$ 2,887,045	$ 2,866,426	$ 422,293	$ 404,044	$ 773,268	$ 1,287,440

X

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 43

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e(1)

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Details

Name:	us-gaap_GoodwillLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

Reflects net changes to the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

+ Details

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