Fair Value Measurements and Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Marketable Securities and Financial Instruments on Fair Value Basis

The following table summarizes the valuation of our marketable securities, financial instruments and other items recorded on a fair value basis as of:

	Fair Value Measurements
	Total			Quoted Prices in Active Markets (Level  1)		Significant Other Observable Inputs (Level  2)			Significant Unobservable Inputs (Level  3)
	(In millions)
Asset (liability)
December 31, 2016:
Marketable securities:
Current	$	4.4		$	—	$	4.4		$	—
Noncurrent		253.5			.6		2.9			250.0
Interest rate swap		(3.1	)		—		(3.1	)		—
September 30, 2017:
Marketable securities:
Current	$	.8		$	—	$	.8		$	—
Noncurrent		256.7			2.1		4.6			250.0

Financial Instruments not Carried at Fair Value

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure:

	December 31, 2016				September 30, 2017
	Carrying amount		Fair value		Carrying amount		Fair value
	(In millions)
Cash, cash equivalents and restricted cash equivalents	$	196.5	$	196.5	$	475.3	$	475.3
Deferred payment obligation		9.0		9.0		9.2		9.2
Long-term debt (excluding capitalized leases):
Kronos term loan		335.9		334.6		—		—
KII fixed rate Senior Notes		—		—		464.2		480.4
Snake River Sugar Company fixed rate loans		250.0		250.0		250.0		250.0
WCS fixed rate debt		64.0		64.0		62.7		62.7
Valhi credit facility with Contran		278.9		278.9		284.3		284.3
Tremont promissory note payable		14.5		14.5		14.5		14.5
BMI bank note payable		8.4		8.5		—		—
BMI loan agreement		—		—		18.7		19.7
LandWell note payable to the City of Henderson		2.9		2.9		2.7		2.7