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Goodwill and Intangible Assets
3 Months Ended
Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
5.
Goodwill and Intangible Assets
The changes in the carrying value of Goodwill for the three months ended March 31, 2016 were as follows:
 
Goodwill
 
Accumulated
Impairment
Losses
 
Total
Balance as of December 31, 2015
$
60,447

 
$
(43,644
)
 
$
16,803

Foreign currency fluctuations
(248
)
 
596

 
348

Balance as of March 31, 2016
$
60,199

 
$
(43,048
)
 
$
17,151


The balances of acquired Intangible Assets, excluding Goodwill, as of March 31, 2016 and December 31, 2015, were as follows:
 
Customer Lists and Service Contracts
 
Trade Name
 
Technology
 
Total
Balance as of March 31, 2016
 
 
 
 
 
 
 
Original cost
$
6,439

 
$

 
$
5,243

 
$
11,682

Accumulated amortization
(5,916
)
 

 
(2,661
)
 
(8,577
)
Carrying value
$
523

 
$

 
$
2,582

 
$
3,105

Weighted average original life (in years)
15

 

 
13

 
 

Balance as of December 31, 2015
 

 
 
 
 

 
 

Original cost
$
19,781

 
$
3,859

 
$
6,596

 
$
30,236

Accumulated amortization
(19,232
)
 
(3,859
)
 
(3,950
)
 
(27,041
)
Carrying value
$
549

 
$

 
$
2,646

 
$
3,195

Weighted average original life (in years)
15

 
14

 
13

 
 


The accumulated amortization balances for the year ended December 31, 2015 included fully impaired customer lists, trade name and technology intangible assets that were impaired as a result of our decision to hold the assets and liabilities of the Green Machines outdoor city cleaning line for sale in 2015.
Amortization expense on Intangible Assets for the three months ended March 31, 2016 and 2015 was $112 and $520, respectively.
Estimated aggregate amortization expense based on the current carrying value of amortizable Intangible Assets for each of the five succeeding years and thereafter is as follows:
Remaining 2016
$
299

2017
317

2018
312

2019
312

2020
312

Thereafter
1,553

Total
$
3,105