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Earnings Per Common Share And Share Awards (Schedule Of Weighted Average Grant Date Fair Value Of Stock Awards Plans) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Common Share And Stock Options [Abstract]
Weighted-average market price	$ 50.50	$ 41.50
Weighted-average grant-date fair value	$ 18.84	$ 15.55

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Weighted Average Grant Date Fair Value

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Weighted-Average Market Price

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

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- Details

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