Stock-Based Compensation (Tables)

12 Months Ended

Dec. 25, 2011

Stock-Based Compensation [Abstract]

Stock Option Activity Under The Principal Option Plans

	Number of Shares	Weighted- Average Exercise Price	Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding at December 26, 2010	2,745,796	$ 19.11	5.32	$ 8,731
Granted	96,444	21.59
Exercised	(128,218)	12.37
Forfeited or expired	(113,217)	19.00
Outstanding at December 25, 2011	2,600,805	$ 19.54	4.39	$ 512
Vested and expected to vest at December 25, 2011	2,577,921	$ 19.54	4.36	$ 509
Exercisable at December 25, 2011	2,150,695	$ 19.56	3.79	$ 359

Nonvested Service Based Restricted Stock Units

	Number of Shares	Weighted- Average Vest Date (in years)	Weighted- Average Grant Date Fair Value
Nonvested at December 26, 2010	630,244	0.81	$ 20.48
Granted	248,892		$ 20.83
Vested	(209,972)		$ 18.92
Forfeited	(51,492)		$ 18.83
Nonvested at December 25, 2011	617,672	0.79	$ 21.29
Vested and expected to vest at December 25, 2011	580,281	0.73
Vested at December 25, 2011	62,590	—