Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Payables And Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities

	December 31,
	2015		2016
	(In millions)
Accounts payable:
Kronos	$	96.1	$	84.9
CompX		2.7		2.6
WCS		1.3		1.6
BMI/LandWell		2.1		2.2
NL		1.9		2.4
Other		.7		.7
Total	$	104.8	$	94.4
Current accrued liabilities:
Employee benefits	$	24.7	$	29.2
Accrued sales discounts and rebates		23.9		22.6
Deferred income		21.8		32.0
Environmental remediation and related costs		11.7		15.3
Reserve for uncertain tax positions		—		3.3
Accrued workforce reduction costs		5.3		1.2
Interest rate swap contract		3.3		2.8
Other		30.4		28.8
Total	$	121.1	$	135.2
Noncurrent accrued liabilities:
Reserve for uncertain tax positions	$	32.9	$	35.7
Asset retirement obligations		28.8		30.7
Deferred income		20.2		12.6
Employee benefits		7.1		7.6
Insurance claims and expenses		9.6		9.5
Deferred payment obligation		8.8		9.0
Other		7.2		8.8
Total	$	114.6	$	113.9