Stock-Based Compensation Plans (Summary Of Stock Option Activity) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Stock-Based Compensation Plans
Outstanding at beginning of the period	2,040,701		2,156,209
Stock Options, Granted			57,865
Stock Options, Exercised	(45,233)		(108,451)
Stock Options, Forfeited or canceled	(95,049)		(39,236)
Outstanding at end of the period	1,900,419		2,066,387
Stock Options, Exercisable	1,723,012		1,789,954
Stock Options, Weighted Average Strike Price, Beginning of the period	$ 38.92		$ 37.61
Stock Options, Weighted Average Strike Price, Granted			$ 35.05
Stock Options, Weighted Average Strike Price, Exercised	$ 15.66		$ 16.11
Stock Options, Weighted Average Strike Price, Forfeited or canceled	$ 46.59		$ 51.48
Stock Options, Weighted Average Strike Price, End of the period	$ 39.09		$ 38.40
Stock Options, Weighted Average Strike Price, Exercisable	$ 39.86		$ 38.69
Stock Options, Remaining Contractual Term, End of the Period, years	2.8	[1]	3.6	[1]
Stock Options, Remaining Contractual Term, Exercisable, years	2.6	[1]	3.4	[1]
Stock Options, Intrinsic Value, End of the Period	$ 6,589	[2]	$ 9,268	[2]
Stock Options, Intrinsic Value, Exercisable	$ 6,099	[2]	$ 8,566	[2]

[1] Represents the weighted average contractual life remaining in years.

[2] Aggregate intrinsic value represents the total pre-tax intrinsic value (i.e., the difference between the Company's average of the high and low stock price on the last trading day of the quarter and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the quarter. This amount will change based on the fair market value of the Company's stock.