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Investments (Tables)
3 Months Ended
Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Investment
The Company’s investments subject to fair value measurement consist of the following:
Cost BasisUnrealized
Gain / (Loss)
Fair Value
As of March 31, 2022
Short-term investments
Certificates of deposit$42.1 $— $42.1 
Long-term investments
Assets held in a rabbi trust$5.0 $1.0 $6.0 
As of December 31, 2021
Short-term investments
Certificates of deposit$34.3 $— $34.3 
Long-term investments
Assets held in a rabbi trust$5.4 $1.6 $7.0