XML 19 R57.htm IDEA: XBRL DOCUMENT v2.4.0.8
Financial Instruments and Fair Value Measurements - Summary of Financial Instruments (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Noncontrolling interest in CompX common stock $ 14,074 $ 13,615
NL stockholders’ equity 257,277 355,380
Carrying Amount
   
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cash, cash equivalents and restricted cash 62,733 57,639
Noncontrolling interest in CompX common stock 14,074 13,615
NL stockholders’ equity 257,277 355,380
Fair Value
   
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cash, cash equivalents and restricted cash 62,733 57,639
Noncontrolling interest in CompX common stock 17,232 23,119
NL stockholders’ equity $ 452,264 $ 544,174