Goodwill and Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in the carrying amount of Goodwill
The changes in the carrying value of Goodwill for the three months ended March 31, 2015 were as follows:
 
Goodwill
 
Accumulated
Impairment
Losses
 
Total
Balance as of December 31, 2014
$
64,858

 
$
(46,503
)
 
$
18,355

Foreign currency fluctuations
(3,492
)
 
2,694

 
(798
)
Balance as of March 31, 2015
$
61,366

 
$
(43,809
)
 
$
17,557
Acquired Intangible Assets excluding Goodwill
The balances of acquired Intangible Assets, excluding Goodwill, as of March 31, 2015 and December 31, 2014, were as follows:
 
Customer Lists
 
Trade
Name
 
Technology
 
Total
Balance as of March 31, 2015
 
 
 
 
 
 
 
Original cost
$
20,324

 
$
3,812

 
$
6,562

 
$
30,698

Accumulated amortization
(11,356
)
 
(1,903
)
 
(3,218
)
 
(16,477
)
Carrying value
$
8,968

 
$
1,909

 
$
3,344

 
$
14,221

Weighted-average original life (in years)
15

 
14

 
13

 
 

Balance as of December 31, 2014
 

 
 

 
 

 
 

Original cost
$
21,946

 
$
4,300

 
$
6,915

 
$
33,161

Accumulated amortization
(12,099
)
 
(2,068
)
 
(3,406
)
 
(17,573
)
Carrying value
$
9,847

 
$
2,232

 
$
3,509

 
$
15,588

Weighted-average original life (in years)
15

 
14

 
13

 
 
Estimated aggregate amortization expense of Intangible Assets
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 2015
$
1,390

2016
1,639

2017
1,542

2018
1,536

2019
1,428

Thereafter
6,686

Total
$
14,221