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Investments in debt and equity securities (Tables)
 3 Months Ended
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investments
The Company’s short-term and long-term debt and equity investments, consisting of debt instruments classified as held-to-maturity and equity investments with readily determinable fair values or redemption values, were as follows:
 March 31, 2023December 31, 2022
Debt
securities		Equity
securities		TotalDebt
securities		Equity
securities		Total
Certificates of deposit and other time deposits$58,341 $— $58,341 $82,879 $— $82,879 
Investments in mutual funds and common stocks— 36,144 36,144 — 39,143 39,143 
 $58,341 $36,144 $94,485 $82,879 $39,143 $122,022 
Short-term investments$43,338 $6,627 $49,965 $67,872 $9,821 $77,693 
Long-term investments15,003 29,517 44,520 15,007 29,322 44,329 
 $58,341 $36,144 $94,485 $82,879 $39,143 $122,022