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Geographic and Service Group Information (Tables)
12 Months Ended
Dec. 27, 2019
Segment Reporting [Abstract]  
Geographic Revenue from Continuing Operations before Reimbursement

Revenue, which is primarily based on the country of the Company’s contracting entity is attributed to geographic areas as follows (in thousands):

 

 

 

Year Ended

 

 

 

December 27,

 

 

December 28,

 

 

December 29,

 

 

 

2019

 

 

2018

 

 

2017

 

Revenue:

 

 

 

 

 

 

 

 

 

 

 

 

North America

 

$

221,823

 

 

$

222,054

 

 

$

211,195

 

International (primarily European countries)

 

 

39,014

 

 

 

42,469

 

 

 

43,936

 

Revenue from continuing operations before reimbursement

 

$

260,837

 

 

$

264,523

 

 

$

255,131

 

Long-Lived Assets Attributable To Geographic Area

Long-lived assets are attributed to geographic areas as follows (in thousands):

 

 

 

December 27,

 

 

December 28,

 

 

 

2019

 

 

2018

 

Long-lived assets:

 

 

 

 

 

 

 

 

North America

 

$

91,309

 

 

$

88,317

 

International (primarily European countries)

 

 

23,799

 

 

 

19,344

 

Total long-lived assets

 

$

115,108

 

 

$

107,661