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Goodwill
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The following table sets forth the activity in goodwill from December 31, 2018, through December 31, 2020 (in thousands):
Goodwill
  
Temporary and consultant staffingPermanent placement staffingRisk consulting and internal audit services Total
Balance as of December 31, 2018$134,067 $26,058 $49,833 $209,958 
Foreign currency translation adjustments143 39 224 406 
Balance as of December 31, 2019$134,210 $26,097 $50,057 $210,364 
Acquisitions (a)— — 12,199 12,199 
Foreign currency translation adjustments301 83 108 492 
Balance as of December 31, 2020$134,511 $26,180 $62,364 $223,055 
(a) In December 2020 the Company, through its wholly owned subsidiary Protiviti, acquired Identropy, Inc., an independent security consulting firm specializing in advisory, implementation and managed services for identity, access management and access governance solutions. As part of the acquisition, the Company recorded goodwill of $12.2 million within its risk consulting and internal audit services segment.