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Financial instruments and fair value measurements (Tables)

3 Months Ended

Mar. 31, 2013

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, 2012 and March 31, 2013:

		December 31, 2012								March 31, 2013
		Carrying Amount				Fair Value				Carrying Amount				Fair Value
		(in thousands)
Cash, cash equivalents and restricted cash		$	85,035			$	85,035			$	78,994			$	78,994
CompX promissory note payable to TIMET Finance Management Company			18,480				18,480				18,230				18,230
Noncontrolling interest in CompX common stock			13,268				23,409				13,183				20,741
NL stockholders’ equity			374,815				557,259				395,683				604,954

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258

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