Rendering

Component: (Network and Table)
Network
2322301 - Disclosure - Intangible Assets and Goodwill (Tables)
(http://www.alxn.com/role/IntangibleAssetsAndGoodwillTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000899866 (http://www.sec.gov/CIK)
Goodwill and Intangible Assets Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Goodwill and Intangible Assets Disclosure [Abstract]
 
Schedule of Intangible Assets and Goodwill
Intangible assets and goodwill, net of accumulated amortization, are as follows:
 
 
 
December 31, 2016
 
December 31, 2015
 
Estimated
Life (years)
 
Cost
 
Accumulated
Amortization
 
Net
 
Cost
 
Accumulated
Amortization
 
Net
Licenses
6-8
 
$
29

 
$
(29
)
 
$
—

 
$
29

 
$
(29
)
 
$
—

Patents
7
 
11

 
(11
)
 
—

 
11

 
(11
)
 
—

Purchased technology
6-16
 
4,711

 
(439
)
 
4,272

 
4,709

 
(117
)
 
4,592

Acquired IPR&D
Indefinite
 
31

 
—

 
31

 
116

 
—

 
116

Total
 
 
$
4,782

 
$
(479
)
 
$
4,303

 
$
4,865

 
$
(157
)
 
$
4,708

Goodwill
Indefinite
 
$
5,040

 
$
(3
)
 
$
5,037

 
$
5,051

 
$
(3
)
 
$
5,048


  
Schedule of Goodwill
The following table summarizes the changes in the carrying amount of goodwill: 
Balance at December 31, 2014
$
254

Goodwill resulting from the Synageva acquisition
4,794

Balance at December 31, 2015
$
5,048

Change in goodwill associated with prior acquisition
$
(11
)
Balance at December 31, 2016
$
5,037