Basis of Presentation (Summary of Stock Options Activity) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Shares
Outstanding at beginning of period (in shares)	261,936	377,907
Granted (in shares)	0	0
Exercised (in shares)	(9,750)	(68,586)
Forfeited (in shares)	(7,000)	(1,800)
Outstanding at end of period (in shares)	245,186	307,521
Options exercisable at end of period (in shares)	245,186	307,521
Weighted-Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 23.60	$ 22.62
Granted (in dollars per share)	$ 0.00	$ 0.00
Exercised (in dollars per share)	$ 19.67	$ 19.54
Forfeited (in dollars per share)	$ 26.62	$ 26.68
Outstanding at end of period (in dollars per share)	$ 23.67	$ 23.28
Options exercisable at end of period (in dollars per share)	$ 23.67	$ 23.28