Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Summary of Financial Instruments Not Carried at Fair Value

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure as December 31, 2017 and 2018:

	December 31, 2017				December 31, 2018
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In thousands)
Cash, cash equivalents and restricted cash	$	102,941	$	102,941	$	120,989	$	120,989
Noncontrolling interest in CompX common stock		17,756		22,224		19,443		22,871