Stock-Based Compensation (Number, Weighted Average Exercise Price and Weighted Average Remaining Contractual Life of Options Outstanding) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options	723,697
Weighted Average Exercise Price	$ 42.60
Weighted Average Remaining Contractual Life (Years)	3 years 10 months
Exercise Price Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Lower Limit	$ 27.00
Range of Exercise Prices Upper Limit	$ 38.00
Number of Options	67,257
Weighted Average Exercise Price	$ 28.30
Weighted Average Remaining Contractual Life (Years)	5 years 1 month 23 days
Exercise Price Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Lower Limit	$ 38.01
Range of Exercise Prices Upper Limit	$ 42.00
Number of Options	167,447
Weighted Average Exercise Price	$ 41.23
Weighted Average Remaining Contractual Life (Years)	3 years 2 months 15 days
Exercise Price Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Lower Limit	$ 42.01
Range of Exercise Prices Upper Limit	$ 45.00
Number of Options	351,893
Weighted Average Exercise Price	$ 44.02
Weighted Average Remaining Contractual Life (Years)	4 years 1 month 27 days
Exercise Price Range Four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Lower Limit	$ 45.01
Range of Exercise Prices Upper Limit	$ 50.00
Number of Options	137,100
Weighted Average Exercise Price	$ 47.67
Weighted Average Remaining Contractual Life (Years)	3 years 1 month