Debt (Senior Secured Credit Facility) (Details) (USD $)	9 Months Ended					9 Months Ended			6 Months Ended	9 Months Ended
	Sep. 23, 2012	Sep. 25, 2011	Sep. 23, 2012 Senior Secured Credit Facility [Member]	Sep. 23, 2012 Letter Of Credit [Member]	Sep. 23, 2012 Swingline Loan [Member]	Sep. 23, 2012 Senior Secured Notes [Member]	Sep. 23, 2012 Maximum [Member]	Sep. 23, 2012 Maximum [Member] Senior Secured Notes [Member]	Jun. 24, 2012 Minimum [Member]	Sep. 23, 2012 Minimum [Member] Senior Secured Notes [Member]	Sep. 23, 2012 July 2012 Amendment to the Senior Secured Credit Facility [Member]	Sep. 23, 2012 Repayment of Senior Secured Credit Facility [Member]	Sep. 23, 2012 Debt Covenant Compliance July 2012 [Member]
Debt Instrument [Line Items]
Payments of Debt Issuance Costs	$ 2,113,000	$ 0	$ 1,400,000			$ 700,000
Repayments of Debt, Maturing in More than Three Months			6,100,000			8,900,000
Line of Credit Facility, Borrowing Capacity, Description	75,000,000												68,900,000
Write off of Deferred Debt Issuance Cost											800,000	200,000
Original letters of credit sublimit			25,000,000
Original Total Commitment			125,000,000
Expansion option under credit facility			50,000,000
Potential total commitment with expansion option			118,900,000
Letters of credit sublimit			5,000,000
Original swingline loans sublimit					25,000,000
Letters of credit outstanding				1,400,000
Swingline loans sublimit					5,000,000
Percentage of stock pledge of domestic subsidiaries			100.00%			100.00%
Percentage of stock pledge of all first-tier foreign subsidiaries			65.00%			65.00%
Book value of collateral of bank facility			$ 142,000,000			$ 142,000,000
Leverage ratio							2.75	2.75
Fixed charge coverage ratio									1.25	1.25