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Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
Changes in the carrying amount of goodwill by reportable business segment for the three months ended March 31, 2018 were as follows (in thousands):
 
Workforce Excellence
 
Business Transformation Services
 
Total
Balance as of December 31, 2017
$
96,330

 
$
48,505

 
$
144,835

Acquisitions
—

 
8,527

 
8,527

Foreign currency translation
778

 
450

 
1,228

Balance as of March 31, 2018
$
97,108


$
57,482


$
154,590
Schedule of Finite-Lived Intangible Assets
The primary assets included in this category and their respective balances were as follows (in thousands):
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
March 31, 2018
 
 
Customer relationships
$
16,432

 
$
(10,610
)
 
$
5,822

Intellectual property and other
4,404

 
(1,388
)
 
3,016

 
$
20,836


$
(11,998
)

$
8,838

 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

Customer relationships
$
16,330

 
$
(11,140
)
 
$
5,190

Intellectual property and other
4,298

 
(1,125
)
 
3,173

 
$
20,628


$
(12,265
)

$
8,363