Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Components of Finite-Lived Intangible Assets
 
 
As of December 31,
 
Weighted average
amortization period
 
 
2013
 
2012
 
(years)
Acquired technology (refer to Note 6)
 
$
10,133
 
$
10,133
 
6.0
Less: accumulated amortization
 
 
(2,451)
 
 
(763)
 
 
Less: impairment of technology (refer to Note 7)
 
 
(7,045)
 
 
—
 
 
Less: technology reclassified to assets held for sale (refer to Note 7)
 
 
(637)
 
 
—
 
 
Total
 
 
—
 
 
9,370
 
 
 
 
 
 
 
 
 
 
 
Patents
 
 
28,213
 
 
26,694
 
8.3
Less: accumulated amortization
 
 
(5,465)
 
 
(2,020)
 
 
Total
 
 
22,748
 
 
24,674
 
 
 
 
 
 
 
 
 
 
 
 
 
$
22,748
 
$
34,044
 
 
Finite-Lived Intangible Assets, Future Amortization Expense
Estimated patent amortization expense for each of the five succeeding years, based upon intangible assets owned at December 31, 2013 is as follows:
 
Year ending December 31,
 
Amount
 
2014
 
$
3,832
 
2015
 
 
3,766
 
2016
 
 
3,045
 
2017
 
 
2,845
 
2018
 
 
2,822
 
2019 and thereafter
 
 
6,438
 
 
 
$
22,748