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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Fair value hierarchy of assets and liabilities The following provides the hierarchy of inputs used to derive fair value of Artisan’s assets and liabilities that are financial instruments as of December 31, 2021 and 2020:
Assets and Liabilities at Fair Value
TotalNAV Practical Expedient (No Fair Value Level)Level 1Level 2Level 3
December 31, 2021
Assets
Money market funds$37,861 $— $37,861 $— $— 
Equity securities47,878 9,975 37,903 — — 
December 31, 2020
Assets
Money market funds$25,855 $— $25,855 $— $— 
Equity securities3,656 57 3,599 — —