XML 27 R87.htm IDEA: XBRL DOCUMENT

Stock-Based Compensation Plans (Weighted Average Assumptions Used To Determine The Options Fair Value) (Details)	3 Months Ended
	Mar. 31, 2012 Y
Stock-Based Compensation Plans [Abstract]
Expected dividend yield	0.60%
Expected volatility	62.70%
Risk-free rate	0.70%
Expected option life (in years)	4.5

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

+ References+ Details