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Goodwill and Other Acquisition-Related Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets and Goodwill
Information regarding the Company’s other acquisition-related intangible assets is as follows:
 
 
 
 
December 31, 2012
 
December 31, 2011
 
Useful
Life
(Years)
Gross
 
Accumulated
Amortization
 
Net Book
Value
 
Gross
 
Accumulated
Amortization
 
Net Book
Value
Goodwill
 
 
$
4,391

 
$
—

 
$
4,391

 
$
3,376

 
$
—

 
$
3,376

Amortizing intangible assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
In-process research and development
3 - 5
 
1,779

 
(658
)
 
1,121

 
850

 
(270
)
 
580

Patents, trademarks, developed technology and other
4 - 15
 
55,743

 
(34,551
)
 
21,192

 
49,653

 
(28,430
)
 
21,223

 
 
 
57,522

 
(35,209
)
 
22,313

 
50,503

 
(28,700
)
 
21,803

Non-amortizing intangible assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
In-process research and development
 
 
850

 
—

 
850

 
929

 
—

 
929

Total intangible assets
 
 
58,372

 
(35,209
)
 
23,163

 
51,432

 
(28,700
)
 
22,732

Total goodwill and intangible assets
 
 
$
62,763

 
$
(35,209
)
 
$
27,554

 
$
54,808

 
$
(28,700
)
 
$
26,108
Schedule of Intangible Asset Amortization
Amortization expense of intangible assets was approximately as follows:
 
Year ended December 31, 
 
 
2012
 
2011
 
2010
Amortization expense
$
6,509

 
$
6,103

 
$
5,904
Schedule of Changes In Gross Goodwill And Intangibles
The changes in the gross carrying amount of goodwill and intangible assets are as follows:

 
 
Goodwill and Intangible Assets
 
 
Goodwill
 
In process research and development- non-amortizing
 
In process research and development- amortizing
 
Patents, trademarks, developed technology and other
 
Total
Balance as of December 31, 2010
 
$
3,376

 
$
1,365

 
$
600

 
$
48,053

 
$
53,394

Additions
 
—

 
—

 
250

 
1,600

 
1,850

Deductions
 
—

 
(436
)
 
—

 
—

 
(436
)
Balance as of December 31, 2011
 
$
3,376

 
$
929

 
$
850

 
$
49,653

 
$
54,808

Additions
 
1,015

 
850

 
929

 
6,090

 
8,884

Deductions
 
—

 
(929
)
 
—

 
—

 
(929
)
Balance as of December 31, 2012
 
$
4,391

 
$
850

 
$
1,779

 
$
55,743

 
$
62,763
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Amortization expense related to intangible assets at December 31, 2012 in each of the next five fiscal years and beyond is expected to be as follows:
 
 
2013
$
6,483

2014
5,193

2015
3,225

2016
1,871

2017
1,716

Thereafter
3,825

 
$
22,313