Stock-Based Employee Compensation (Summary Of Non-Vested Shares) (Details) (USD $)	3 Months Ended
	Mar. 24, 2015	Mar. 25, 2014
Stock-Based Employee Compensation [Abstract]
Non-vested shares at beginning of year	974,250
Non-vested shares, Vested	(11,375)
Non-vested shares, Forfeited	(3,750)
Non-vested shares at end of period	959,125
Non-vested shares, Weighted average Grant-Date Fair Value, Beginning of year	$ 7.08
Non-vested shares, Weighted average Grant-Date Fair Value, Granted		$ 9.99
Non-vested shares, Weighted average Grant-Date Fair Value, Vested	$ 7.88
Non-vested shares, Weighted average Grant-Date Fair Value, Forfeited	$ 8.44
Non-vested shares, Weighted average Grant-Date Fair Value, End of period	$ 7.06