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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Intangible Assets
Our intangible assets as of December 31 were comprised of the following (in thousands):
 
December 31, 2016
 
Weighted-
Average
Amortization
Period
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Amount
Definite-lived intangible assets:
 
 
 
 
 
 
 
Trademarks/Tradenames
23 years
 
$
8,378

 
$
(3,193
)
 
$
5,185

Customer relationships
15 years
 
14,181

 
(3,855
)
 
10,326

 
 
 
$
22,559

 
$
(7,048
)
 
$
15,511

 
December 31, 2015
 
Weighted-
Average
Amortization
Period
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Amount
Definite-lived intangible assets:
 
 
 
 
 
 
 
Trademarks/Tradenames
23 years
 
$
9,460

 
$
(3,914
)
 
$
5,546

Customer relationships
15 years
 
14,344

 
(2,944
)
 
11,400

 
 
 
$
23,804

 
$
(6,858
)
 
$
16,946
Changes in Carrying Amounts of Goodwill
The changes in the carrying amounts of goodwill for the years ended December 31 are as follows (in thousands):
 
2016
 
2015
Balance — Beginning of the year
$
7,834

 
$
8,056

Currency translation adjustment
(131
)
 
(222
)
Balance — End of the year
$
7,703

 
$
7,834