Stock-Based Employee Compensation (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Stock-Based Employee Compensation [Abstract]
Outstanding at beginning of year, Shares	825,000
Granted, Shares	765,500
Exercised, Shares	(28,475)
Forfeited, Shares	(65,500)
Outstanding at end of period, Shares	1,496,525
Options exercisable at end of period, Shares	166,400
Outstanding at beginning of year, Weighted average exercise price	$ 13.09
Granted, Weighted average exercise price	$ 20.82
Exercised, Weighted average exercise price	$ 13.00
Forfeited, Weighted average exercise price	$ 14.09
Outstanding at end of period, Weighted average exercise price	$ 17.00
Options exercisable at end of period, Weighted average exercise price	$ 13.12
Outstanding at end of period, Weighted average Remaining Contractual Term	9 years 26 days
Options exercisable at end of period, Weighted average Remaining Contractual Term	8 years 7 months 10 days
Outstanding at end of period, Aggregate Intrinsic Value	$ 9,826
Options exercisable at end of period, Aggregate Intrinsic Value	$ 1,740