Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Summary of Investments Measured at Fair Value

The following is a summary of our investments measured at fair value at March 31, 2018:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Equity securities
Equities	$	2,442	$	—	$	2,442	$	—
Mutual funds	4,851		—		4,851		—
Available-for-sale securities
U.S. Government and agency securities	1,034		1,034		—		—
Corporate bonds	1,469		1,469		—		—
Asset-backed securities and collateralized mortgage obligations	147		—		147		—
Total	$	9,943	$	2,503	$	7,440	$	—

The following is a summary of our investments measured at fair value at December 31, 2017:

	Total		Level 1		Level 2		Level 3
	(In thousands)
Available-for-sale securities
U.S. Government and agency securities	$	1,299	$	1,299	$	—	$	—
Corporate bonds	3,169		1,534		1,635		—
Equities	2,759		—		2,759		—
Mutual funds	4,847		—		4,847		—
Asset-backed securities and collateralized mortgage obligations	161		—		161		—
Total	$	12,235	$	2,833	$	9,402	$	—