Investments in debt and equity securities

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Investments in debt and equity securities

Short-term and long-term 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:

	September 30, 2022						December 31, 2021
	Debt securities		Equity securities		Total		Debt securities		Equity securities		Total
Certificates of deposit and other time deposits	$	77,843	$	—	$	77,843	$	23,226	$	—	$	23,226
Investments in mutual funds and common stocks	—		39,997		39,997		—		48,598		48,598
	$	77,843	$	39,997	$	117,840	$	23,226	$	48,598	$	71,824
Short-term investments	$	62,832	$	11,473	$	74,305	$	8,227	$	14,083	$	22,310
Long-term investments	15,011		28,524		43,535		14,999		34,515		49,514
	$	77,843	$	39,997	$	117,840	$	23,226	$	48,598	$	71,824

Debt securities: The Company's short-term debt investments are principally bank certificates of deposit with contractual maturities longer than three months but shorter than one year. These debt securities are accounted for as held-to-maturity and recorded at amortized cost, which approximated their fair values at September 30, 2022 and December 31, 2021.

Equity securities: The Company holds certain equity investments that have readily determinable fair values from public markets. The Company's remaining short-term and long-term equity investments are held within a trust to fund existing obligations associated with the Company’s non-qualified deferred compensation plans.