Investments in debt and equity securities (Tables)

9 Months Ended

Sep. 30, 2021

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:

	September 30, 2021						December 31, 2020
	Debt securities		Equity securities		Total		Debt securities		Equity securities		Total
Certificates of deposit and other time deposits	$	8,225	$	—	$	8,225	$	8,217	$	—	$	8,217
Investments in mutual funds and common stocks	—		52,063		52,063		—		44,077		44,077
	$	8,225	$	52,063	$	60,288	$	8,217	$	44,077	$	52,294
Short-term investments	$	8,225	$	18,465	$	26,690	$	8,217	$	11,884	$	20,101
Long-term investments	—		33,598		33,598		—		32,193		32,193
	$	8,225	$	52,063	$	60,288	$	8,217	$	44,077	$	52,294