Stock Based Compensation Stock Based Compensation (Summary of stock option awards) (Details) (Stock options [Member], USD $)	6 Months Ended
	Jun. 30, 2014
Stock options [Member]
Stock Options, Number of options outstanding (in shares):
December 31, 2013 (in shares)	714,484
Granted (in shares)	9,000
Vested/exercised (in shares)	(14,804)
Forfeited (in shares)	(26,250)
June 30, 2014 (in shares)	682,430
Stock Options, Weighted average exercise price (in dollars per share):
December 31, 2013 (in dollars per share)	$ 9.98
Granted (in dollars per share)	$ 18.22
Vested/exercised (in dollars per share)	$ 0.97
Forfeited (in dollars per share)	$ 14.00
June 30, 2014 (in dollars per share)	$ 10.14