Short-term and long-term invesmtents (Tables)

12 Months Ended

Dec. 31, 2020

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments

The Company’s short-term and long-term investments, consisting of debt instruments classified as held-to-maturity and equity investments with readily determinable fair values or redemption values, were as follows:

	December 31, 2020						December 31, 2019
	Debt securities		Equity securities		Total		Debt securities		Equity securities		Total
Certificates of deposit and other time deposits	$	8,217	$	—	$	8,217	$	8,140	$	—	$	8,140
Investments in mutual funds and common stock	—		44,077		44,077		—		39,951		39,951
	$	8,217	$	44,077	$	52,294	$	8,140	$	39,951	$	48,091
Short-term investments	$	8,217	$	11,884	$	20,101	$	8,140	$	3,432	$	11,572
Long-term investments	—		32,193		32,193		—		36,519		36,519
	$	8,217	$	44,077	$	52,294	$	8,140	$	39,951	$	48,091