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GOODWILL AND INTANGIBLE ASSETS
12 Months Ended
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND INTANGIBLE ASSETS
GOODWILL AND INTANGIBLE ASSETS

Goodwill

As of December 31, 2016, we have recognized $9,077 of goodwill related to business acquisitions. All goodwill is assigned to our Domestic segment.

We perform a goodwill impairment analysis at least annually (in the fourth quarter of each year), unless indicators of impairment exist in interim periods. We performed a quantitative assessment to determine if it was more likely than not that the fair value of each of our reporting units with goodwill exceeded its carrying value. In making this assessment, we evaluated overall business and overall economic conditions since the date of our acquisitions as well as expectations of projected revenues and cash flows, assumptions impacting the weighted average cost of capital and overall global industry and market conditions.

We concluded that the fair value of the domestic reporting unit was in excess of its carrying value and goodwill was not impaired as of December 31, 2016.

Intangible Assets

The following table presents our intangible assets as of December 31, 2016:
 
 
Gross Intangibles
 
Accumulated Amortization
 
Net Intangibles
 
Weighted Average Amortization Period (years)
Developed technology
 
$
390

 
$
183

 
$
207

 
3.65
Customer relationships
 
7,550

 
1,800

 
5,750

 
4.57
Trade name
 
1,050

 
310

 
740

 
2.75
 
 
$
8,990

 
$
2,293

 
$
6,697

 
4.34


Amortization expense of intangible assets was $1,150, $852, and $115 for the years ended December 31, 2016, 2015 and 2014, respectively. We estimated future amortization expense for the succeeding years relating to the intangible assets resulting from acquisitions as follows:
Year Ending December 31,
 
Amount
2017
 
$
1,140

2018
 
1,140

2019
 
1,131

2020
 
1,128

2021
 
1,004

Thereafter
 
1,154



We evaluated our intangible assets based on current economic and business indicators and determined they were not impaired
as of December 31, 2016.