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Fair Value Measurements (Tables)
9 Months Ended
Sep. 29, 2019
Fair Value Disclosures [Abstract]  
Schedule of Fair Value Assets Measured on Recurring Basis
 
 
Fair Value Measurements on a Recurring Basis
As of Third Quarter-End 2019
Description
 
Total
 
Level 1
 
Level 2
 
Level 3
 
 
(In millions of dollars)
Money market funds
 
$
4.9

 
$
4.9

 
$

 
$

Investment in Persol Holdings
 
174.9

 
174.9

 

 

 
 
 
 
 
 
 
 
 
Total assets at fair value
 
$
179.8

 
$
179.8

 
$

 
$

 
 
Fair Value Measurements on a Recurring Basis
As of Year-End 2018
Description
 
Total
 
Level 1
 
Level 2
 
Level 3
 
 
(In millions of dollars)
Money market funds
 
$
4.6

 
$
4.6

 
$

 
$

Investment in Persol Holdings
 
135.1

 
135.1

 

 

 
 
 
 
 
 
 
 
 
Total assets at fair value
 
$
139.7

 
$
139.7

 
$

 
$