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Fair Value (Tables)
3 Months Ended
Mar. 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value, Assets Measured on Recurring Basis
The following table presents the Company's fair value hierarchy for assets measured at fair value on a recurring basis (in thousands):
Level in
Fair Value
Hierarchy
Fair Value
March 31, 2022December 31, 2021
Other non-current assets:
Equity securities (1)
1$7,360 $17,166 

(1) Represents our investments in autonomous technology companies. For additional information regarding the valuation of these equity securities, see Note 6 – Investments.