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Shareholders' Equity (Schedule Of Weighted Average Assumptions For Stock Options Granted) (Details) (USD $)	3 Months Ended
	Mar. 31, 2011
Shareholders' Equity [Abstract]
Dividend yield	2.79%
Expected life (years)	7.1
Expected volatility	52.00%
Risk-free rate	2.71%
Weighted average fair value of options on date of grant	$ 4.65

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.

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