Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2015

Payables And Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities

	December 31,
	2014		2015
	(In millions)
Accounts payable:
Kronos	$	121.4	$	96.1
CompX		3.9		2.7
WCS		1.4		1.3
BMI/LandWell		7.0		2.1
NL		2.3		1.9
Other		.2		.7
Total	$	136.2	$	104.8
Current accrued liabilities:
Employee benefits	$	34.6	$	24.7
Accrued sales discounts and rebates		23.0		23.9
Deferred income		19.8		21.8
Environmental remediation and related costs		10.2		11.7
Accrued workforce reduction costs		—		5.3
Interest rate swap contract		—		3.3
Other		40.4		30.4
Total	$	128.0	$	121.1
Noncurrent accrued liabilities:
Reserve for uncertain tax positions	$	34.1	$	32.9
Asset retirement obligations		27.2		28.8
Deferred income		18.9		20.2
Employee benefits		8.1		7.1
Insurance claims and expenses		9.5		9.6
Deferred payment obligation		8.5		8.8
Other		6.4		7.2
Total	$	112.7	$	114.6