Retirement Plans (Tables)

6 Months Ended

Mar. 31, 2013

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Components of Net Pension Expense and Periodic Benefit Costs

The following table provides the components of net periodic pension expense:

	Thirteen Weeks Ended						Twenty-Six Weeks Ended
	Mar 25, 2012			Mar 31, 2013			Mar 25, 2012			Mar 31, 2013
	(in thousands)
Expected return on assets	$	(1,023	)	$	(1,176	)	$	(2,047	)	$	(2,352	)
Service cost	976			1,229			1,951			2,458
Interest cost	1,091			1,115			2,183			2,229
Amortization of prior service cost	1			1			2			2
Amortization of recognized losses	529			725			1,057			1,451
Net pension expense	$	1,574		$	1,894		$	3,146		$	3,788

Actuarial Assumptions Used to Determine Net Pension Expense and Periodic Benefit Costs

Actuarial assumptions used to determine net pension expense were:
Discount rate	4.50	%	3.70	%	4.50	%	3.70	%
Rate of increase in compensation levels	3.00	%	3.00	%	3.00	%	3.00	%
Expected long-term rate of return on assets	6.50	%	6.00	%	6.50	%	6.00	%