Share Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Weighted average estimated fair value

The weighted average fair value for GATX’s SARs and the assumptions used to estimate fair value were:

	2012			2011			2010
Weighted average estimated fair value	$	18.48		$	13.88		$	11.13
Quarterly dividend rate	$	0.29		$	0.29		$	0.28
Expected term of SAR, in years	4.7			4.3			4.3
Risk-free interest rate	1.0		%	1.6		%	2.0		%
Dividend yield	2.7		%	3.4		%	4.3		%
Expected stock price volatility	43.3		%	41.9		%	41.8		%
Present value of dividends	$	5.37		$	4.76		$	4.55

Data with respect to stock options/SARs activity

Certain data with respect to stock option and SAR activity for the year ended December 31, 2012, were:

	Number of Options and SARs (in thousands)	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (in millions)
Outstanding at beginning of the year	1,879	$	31.08
Granted	350	43.99
Exercised	(341)	28.99			$	4.9
Forfeited/Cancelled	(10)	37.15
Expired	(6)	38.95
Outstanding at end of the year	1,872	33.82		3.7	18.0
Vested and exercisable at end of the year	1,146	31.48		2.6	13.8

Restricted stock and performance share activity

Certain data with respect to restricted and performance share activity for the year ended December 31, 2012, were:

	Number of Share Units Outstanding		Weighted Average Grant-Date Fair Value
Restricted Shares:
Nonvested at beginning of the year	333,837		$	29.04
Granted	75,580		43.71
Vested	(134,508	)	25.10
Forfeited	(7,919	)	33.87
Nonvested at end of the year	266,990		35.03
Performance Shares:
Nonvested at beginning of the year	188,434		$	30.36
Granted	76,780		44.02
Net increase due to estimated performance	9,567		40.81
Vested	(85,575	)	25.96
Nonvested at end of the year	189,206		38.42