Long-Term Debt (Debt Related Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 25, 2011
Notional Amount of Underlying Debt	$ 233,000
Interest Rate Swap Maturity 2012, 1.38% [Member]
Notional Amount of Underlying Debt	40,000
Fixed Rate Received	1.38%
Debt Instrument Maturity Period	2012
Interest Rate Swap Maturity 2013, 3.87% [Member]
Notional Amount of Underlying Debt	20,000
Fixed Rate Received	3.87%
Debt Instrument Maturity Period	2013
Interest Rate Swap Maturity 2013, 1.20% [Member]
Notional Amount of Underlying Debt	43,000
Fixed Rate Received	1.20%
Debt Instrument Maturity Period	2013
Interest Rate Swap Maturity 2016 A, 2.54% [Member]
Notional Amount of Underlying Debt	20,000
Fixed Rate Received	2.54%
Debt Instrument Maturity Period	2016
Interest Rate Swap Maturity 2016 B, 2.54% [Member]
Notional Amount of Underlying Debt	30,000
Fixed Rate Received	2.54%
Debt Instrument Maturity Period	2016
Interest Rate Swap Maturity 2016 C, 2.54% [Member]
Notional Amount of Underlying Debt	50,000
Fixed Rate Received	2.54%
Debt Instrument Maturity Period	2016
Interest Rate Swap Maturity 2016 D, 2.54% [Member]
Notional Amount of Underlying Debt	$ 30,000
Fixed Rate Received	2.54%
Debt Instrument Maturity Period	2016