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Investments in debt and equity securities (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Investments

The Company’s investments in these short-term and long-term debt and equity investments consist of the following:

	June 30, 2018												December 31, 2017
	Debt securities				Equity securities				Total				Debt securities				Equity securities				Total
Certificates of deposit and other time deposits	$	2,228			$	—			$	2,228			$	31,630			$	—			$	31,630
Investments in mutual funds and common stock	—				36,500				36,500				—				38,895				38,895
	$	2,228			$	36,500			$	38,728			$	31,630			$	38,895			$	70,525
Short-term investments	$	2,228			$	2,300			$	4,528			$	31,630			$	1,200			$	32,830
Long-term investments	—				34,200				34,200				—				37,695				37,695
	$	2,228			$	36,500			$	38,728			$	31,630			$	38,895			$	70,525

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- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

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