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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of the Gross Amount and Accumulated Impairment Losses of Goodwill The following table presents the gross amount and accumulated impairment losses for each of our reporting units as of December 31, 2018, 2017 and 2016 (in thousands):
 
Technology
 
Finance and
Accounting
 
Government
Solutions
 
Total
Goodwill, gross amount
$
156,391

 
$
19,766

 
$
104,596

 
$
280,753

Accumulated impairment losses
(139,357
)
 
(11,760
)
 
(83,668
)
 
(234,785
)
Goodwill, carrying value
$
17,034

 
$
8,006

 
$
20,928

 
$
45,968