Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Payables And Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities

	December 31,
	2017		2018
	(In millions)
Accounts payable:
Kronos	$	107.9	$	103.2
CompX		2.3		3.2
BMI/LandWell		3.7		2.9
NL		1.8		1.6
Other		.4		.6
Total	$	116.1	$	111.5
Current accrued liabilities:
Employee benefits	$	36.3	$	37.5
Accrued sales discounts and rebates		14.3		29.7
Deferred income		28.3		28.3
Environmental remediation and related costs		6.8		6.5
Interest		5.5		5.2
Other		33.6		33.6
Total	$	124.8	$	140.8
Noncurrent accrued liabilities:
Other postretirement benefits	$	11.3	$	10.3
Reserve for uncertain tax positions		16.5		19.1
Deferred income		15.7		15.8
Employee benefits		8.4		7.1
Insurance claims and expenses		9.1		8.1
Deferred payment obligation		9.3		9.6
Accrued development costs		6.1		7.5
Other		8.5		9.9
Total	$	84.9	$	87.4