Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Summary of Financial Instruments

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure at December 31, 2014 and March 31, 2015:

	December 31, 2014				March 31, 2015
	Carrying		Fair		Carrying		Fair
	Amount		Value		Amount		Value
	(In thousands)
Cash, cash equivalents and restricted cash	$	77,975	$	77,975	$	78,042	$	78,042
Noncontrolling interest in CompX common stock		14,428		19,936		14,661		18,733
NL stockholders' equity		237,022		418,673		232,917		377,292