Marketable securities (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Marketable Securities

	Market value		Cost basis		Unrealized gains/ (losses), net
	(In millions)
December 31, 2011:
Current assets:
Mutual funds	$	20.9	$	21.1	$	(.2	)
Other		1.6		1.6		—
Total	$	22.5	$	22.7	$	(.2	)
Noncurrent assets:
The Amalgamated Sugar Company LLC	$	250.0	$	250.0	$	—
TIMET common stock		97.7		86.0		11.7
Other		6.4		6.5		(.1	)
Total	$	354.1	$	342.5	$	11.6
December 31, 2012:
Current assets	$	.9	$	.9	$	—
Noncurrent assets:
The Amalgamated Sugar Company LLC	$	250.0	$	250.0	$	—
Other		6.8		6.7		.1
Total	$	256.8	$	256.7	$	.1

Schedule of Marketable Securities and Fair Value Measurements

	Fair Value Measurements
	Total		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In millions)
December 31, 2011:
Current assets:
Mutual funds	$	20.9	$	20.9	$	—	$	—
Other		1.6		—		1.6		—
Total	$	22.5	$	20.9	$	1.6	$	—
Noncurrent assets:
The Amalgamated Sugar Company LLC	$	250.0	$	—	$	—	$	250.0
TIMET common stock		97.7		97.7		—		—
Mutual funds and other common stocks		6.4		2.6		3.8		—
Total	$	354.1	$	100.3	$	3.8	$	250.0
December 31, 2012:
Current assets	$	.9	$	—	$	.9	$	—
Noncurrent assets:
The Amalgamated Sugar Company LLC	$	250.0	$	—	$	—	$	250.0
Mutual funds and common stocks		6.8		3.5		3.3		—
Total	$	256.8	$	3.5	$	3.3	$	250.0