Share-based Compensation (Details 2) (Stock Options, 2004 Equity Incentive Plan, USD $)	3 Months Ended		6 Months Ended
	Jun. 25, 2013	Jun. 26, 2012	Jun. 25, 2013	Jun. 26, 2012
Stock Options | 2004 Equity Incentive Plan
Shares
Outstanding at the beginning of the period (in shares)			2,258,921
Forfeited (in shares)			(10,869)
Exercised (in shares)			(810,690)
Outstanding at the end of the period (in shares)	1,437,362		1,437,362
Exercisable at the end of period (in shares)	1,437,362		1,437,362
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)			$ 13.24
Forfeited (in dollars per share)			$ 13.34
Exercised (in dollars per share)			$ 13.01
Outstanding at the end of the period (in dollars per share)	$ 13.37		$ 13.37
Exercisable at the end of the period (in dollars per share)	$ 13.37		$ 13.37
Weighted-Average Remaining Contractual Term
Outstanding at the end of the period			2 years 6 months 22 days
Exercisable at the end of the period			2 years 6 months 22 days
Aggregate Intrinsic Value
Outstanding at the end of the period (in dollars)	$ 15,983,000		$ 15,983,000
Exercisable at the end of the period (in dollars)	15,983,000		15,983,000
Intrinsic value of options exercised (in dollars)	2,900,000	3,200,000	6,200,000	6,600,000
Awards vested (in shares)	0		0
Total grant date fair value of options vested (in dollars)		$ 100,000		$ 100,000