Share-Based Compensation (Summary of Stock Option Activity) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Shares [Roll Forward]
Outstanding, beginning of period (in shares)	1,398,090
Granted (in shares)	34,125
Exercised (in shares)	(137,006)
Forfeited or Expired (in shares)	(40,402)
Outstanding, end of period (in shares)	1,254,807
Exercisable, end of period (in shares)	734,761	714,200
Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning of period (weighted average exercise price)	$ 7.23
Granted (weighted average exercise price)	$ 19.30
Exercised (weighted average exercise price)	$ 6.62
Forfeited or Expired (weighted average exercise price)	$ 11.15
Outstanding, end of period (weighted average exercise price)	$ 7.50
Exercisable, end of period (weighted average exercise price)	$ 6.30	$ 5.73