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Goodwill and Other Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2013
Notes to Financial Statements [Abstract]  
Goodwill
The carrying value of goodwill by segment is as follows (in thousands):
 
 
Industrial Technology
 
Energy Systems & Controls
 
Medical & Scientific Imaging
 
RF Technology
 
Total
 
Balances at December 31, 2012
 
$
421,755
 
$
404,057
 
$
1,772,402
 
$
1,270,643
 
$
3,868,857
 
Other
 
 
-
 
 
-
 
 
-
 
 
445
 
 
445
 
Currency translation adjustments
 
 
(6,167
)
 
(2,491
)
 
(6,136
)
 
(6,430
)
 
(21,224
)
Balances at March 31, 2013
 
$
415,588
 
$
401,566
 
$
1,766,266
 
$
1,264,658
 
$
3,848,078
 
Other Intangible Assets
Other intangible assets are comprised of (in thousands):

 
 
Cost
 
Accumulated
amortization
 
Net book
value
 
Assets subject to amortization:
 
 
 
 
 
 
 
 
 
 
Customer related intangibles
 
$
1,509,339
 
$
(379,535
)
$
1,129,804
 
Unpatented technology
 
 
198,609
 
 
(97,487
)
 
101,122
 
Software
 
 
160,520
 
 
(44,256
)
 
116,264
 
Patents and other protective rights
 
 
40,399
 
 
(20,312
)
 
20,087
 
Trade secrets
 
 
1,500
 
 
(1,500
)
 
-
 
Assets not subject to amortization:
 
 
 
 
 
 
 
 
 
 
Trade names
 
 
331,590
 
 
-
 
 
331,590
 
Balances at December 31, 2012
 
$
2,241,957
 
$
(543,090
)
$
1,698,867
 
 
 
 
 
 
 
 
 
 
 
 
Assets subject to amortization:
 
 
 
 
 
 
 
 
 
 
Customer related intangibles
 
$
1,502,897
 
$
(400,227
)
$
1,102,670
 
Unpatented technology
 
 
206,867
 
 
(103,202
)
 
103,665
 
Software
 
 
160,153
 
 
(47,744
)
 
112,409
 
Patents and other protective rights
 
 
30,272
 
 
(20,894
)
 
9,378
 
Trade secrets
 
 
1,500
 
 
(1,500
)
 
-
 
Assets not subject to amortization:
 
 
 
 
 
 
 
 
 
 
Trade names
 
 
329,771
 
 
-
 
 
329,771
 
Balances at March 31, 2013
 
$
2,231,460
 
$
(573,567
)
$
1,657,893