Unconsolidated Affiliate Unconsolidated Affiliate (Tables)

12 Months Ended

Dec. 31, 2012

Equity Method Investments and Joint Ventures [Abstract]

Summary of financial information of equity method investee

The following summary lists ART's assets, liabilities and results of operations.

	December 31,
(In millions)	2012		2011
Summary of Balance Sheet information:
Current assets	$	136.7	$	136.6
Noncurrent assets	65.9		46.4
Total assets	$	202.6	$	183.0
Current liabilities	$	37.8	$	48.1
Noncurrent liabilities	0.1		—
Total liabilities	$	37.9	$	48.1

	Year Ended December 31,
(In millions)	2012		2011		2010
Summary of Statement of Operations information:
Net sales	$	325.0	$	339.0	$	308.2
Costs and expenses applicable to net sales	276.0		296.3		262.6
Income before income taxes	38.9		32.8		37.3
Net income	37.8		31.2		35.7

Summary of related party transactions

The table below presents a summary of financial data related to transactions between Grace and ART.

	Year Ended December 31,
(In millions)	2012		2011		2010
Grace sales of catalysts to ART	$	206.9	$	171.4	$	211.0
Charges for fixed costs, research and development and selling, general and administrative services to ART	28.5		27.8		24.5