Financial Data of Business Segments (Tables)

3 Months Ended

Mar. 31, 2012

Financial Data of Business Segments [Abstract]

Segment data

	Rail			ASC		Portfolio Management		Other			GATX Consolidated
Three Months Ended March 31, 2012
Profitability
Revenues	$	244.4		$	11.8	$	28.1	$	0.2		$	284.5
Share of affiliates’ earnings		(2.0	)		—		7.5		—			5.5
Total gross income		242.4			11.8		35.6		0.2			290.0
Ownership costs		113.9			1.8		12.7		1.3			129.7
Other costs and expenses		69.9			7.9		0.9		—			78.7
Segment profit (loss)	$	58.6		$	2.1	$	22.0	$	(1.1	)		81.6
SG&A												38.1
Income before income taxes											$	43.5
Capital Expenditures
Portfolio investments and capital additions	$	143.7		$	5.9	$	3.1	$	1.0		$	153.7
Selected Balance Sheet Data at March 31, 2012
Investments in affiliated companies	$	137.7		$	—	$	371.4	$	—		$	509.1
Identifiable assets	$	4,514.2		$	274.4	$	830.6	$	173.7		$	5,792.9
Three Months Ended March 31, 2011
Profitability
Revenues	$	236.8		$	12.1	$	15.9	$	0.2		$	265.0
Share of affiliates’ earnings		7.1			—		10.0		—			17.1
Total gross income		243.9			12.1		25.9		0.2			282.1
Ownership costs		115.0			2.0		11.8		1.0			129.8
Other costs and expenses		77.3			9.3		3.4		0.1			90.1
Segment profit (loss)	$	51.6		$	0.8	$	10.7	$	(0.9	)		62.2
SG&A												36.4
Income before income taxes											$	25.8
Capital Expenditures
Portfolio investments and capital additions	$	53.9		$	5.2	$	36.4	$	0.7		$	96.2
Selected Balance Sheet Data at December 31, 2011
Investments in affiliated companies	$	142.2		$	—	$	371.6	$	—		$	513.8
Identifiable assets	$	4,443.4		$	276.1	$	844.0	$	294.0		$	5,857.5